Adding jquery, flot and openlayers to be included with the GEM.v0.0.4

1 files changed, 41831 insertions, 0 deletions

diff --git a/misc/openlayers/OpenLayers.mobile.debug.js b/misc/openlayers/OpenLayers.mobile.debug.js
new file mode 100644
index 0000000..5cb37cd
--- /dev/null
+++ b/misc/openlayers/OpenLayers.mobile.debug.js
@@ -0,0 +1,41831 @@
+/*
+
+  OpenLayers.js -- OpenLayers Map Viewer Library
+
+  Copyright (c) 2006-2013 by OpenLayers Contributors
+  Published under the 2-clause BSD license.
+  See http://openlayers.org/dev/license.txt for the full text of the license, and http://openlayers.org/dev/authors.txt for full list of contributors.
+
+  Includes compressed code under the following licenses:
+
+  (For uncompressed versions of the code used, please see the
+  OpenLayers Github repository: <https://github.com/openlayers/openlayers>)
+
+*/
+
+/**
+ * Contains XMLHttpRequest.js <http://code.google.com/p/xmlhttprequest/>
+ * Copyright 2007 Sergey Ilinsky (http://www.ilinsky.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+/**
+ * OpenLayers.Util.pagePosition is based on Yahoo's getXY method, which is
+ * Copyright (c) 2006, Yahoo! Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use of this software in source and binary forms, with or
+ * without modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * * Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * 
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * 
+ * * Neither the name of Yahoo! Inc. nor the names of its contributors may be
+ *   used to endorse or promote products derived from this software without
+ *   specific prior written permission of Yahoo! Inc.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+/* ======================================================================
+    OpenLayers/SingleFile.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+var OpenLayers = {
+    /**
+     * Constant: VERSION_NUMBER
+     */
+    VERSION_NUMBER: "Release 2.13.1",
+
+    /**
+     * Constant: singleFile
+     * TODO: remove this in 3.0 when we stop supporting build profiles that
+     * include OpenLayers.js
+     */
+    singleFile: true,
+
+    /**
+     * Method: _getScriptLocation
+     * Return the path to this script. This is also implemented in
+     * OpenLayers.js
+     *
+     * Returns:
+     * {String} Path to this script
+     */
+    _getScriptLocation: (function() {
+        var r = new RegExp("(^|(.*?\\/))(OpenLayers[^\\/]*?\\.js)(\\?|$)"),
+            s = document.getElementsByTagName('script'),
+            src, m, l = "";
+        for(var i=0, len=s.length; i<len; i++) {
+            src = s[i].getAttribute('src');
+            if(src) {
+                m = src.match(r);
+                if(m) {
+                    l = m[1];
+                    break;
+                }
+            }
+        }
+        return (function() { return l; });
+    })(),
+    
+    /**
+     * Property: ImgPath
+     * {String} Set this to the path where control images are stored, a path  
+     * given here must end with a slash. If set to '' (which is the default) 
+     * OpenLayers will use its script location + "img/".
+     * 
+     * You will need to set this property when you have a singlefile build of 
+     * OpenLayers that either is not named "OpenLayers.js" or if you move
+     * the file in a way such that the image directory cannot be derived from 
+     * the script location.
+     * 
+     * If your custom OpenLayers build is named "my-custom-ol.js" and the images
+     * of OpenLayers are in a folder "/resources/external/images/ol" a correct
+     * way of including OpenLayers in your HTML would be:
+     * 
+     * (code)
+     *   <script src="/path/to/my-custom-ol.js" type="text/javascript"></script>
+     *   <script type="text/javascript">
+     *      // tell OpenLayers where the control images are
+     *      // remember the trailing slash
+     *      OpenLayers.ImgPath = "/resources/external/images/ol/";
+     *   </script>
+     * (end code)
+     * 
+     * Please remember that when your OpenLayers script is not named 
+     * "OpenLayers.js" you will have to make sure that the default theme is 
+     * loaded into the page by including an appropriate <link>-tag, 
+     * e.g.:
+     * 
+     * (code)
+     *   <link rel="stylesheet" href="/path/to/default/style.css"  type="text/css">
+     * (end code)
+     */
+    ImgPath : ''
+};
+/* ======================================================================
+    OpenLayers/BaseTypes.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/SingleFile.js
+ */
+
+/** 
+ * Header: OpenLayers Base Types
+ * OpenLayers custom string, number and function functions are described here.
+ */
+
+/**
+ * Namespace: OpenLayers.String
+ * Contains convenience functions for string manipulation.
+ */
+OpenLayers.String = {
+
+    /**
+     * APIFunction: startsWith
+     * Test whether a string starts with another string. 
+     * 
+     * Parameters:
+     * str - {String} The string to test.
+     * sub - {String} The substring to look for.
+     *  
+     * Returns:
+     * {Boolean} The first string starts with the second.
+     */
+    startsWith: function(str, sub) {
+        return (str.indexOf(sub) == 0);
+    },
+
+    /**
+     * APIFunction: contains
+     * Test whether a string contains another string.
+     * 
+     * Parameters:
+     * str - {String} The string to test.
+     * sub - {String} The substring to look for.
+     * 
+     * Returns:
+     * {Boolean} The first string contains the second.
+     */
+    contains: function(str, sub) {
+        return (str.indexOf(sub) != -1);
+    },
+    
+    /**
+     * APIFunction: trim
+     * Removes leading and trailing whitespace characters from a string.
+     * 
+     * Parameters:
+     * str - {String} The (potentially) space padded string.  This string is not
+     *     modified.
+     * 
+     * Returns:
+     * {String} A trimmed version of the string with all leading and 
+     *     trailing spaces removed.
+     */
+    trim: function(str) {
+        return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
+    },
+    
+    /**
+     * APIFunction: camelize
+     * Camel-case a hyphenated string. 
+     *     Ex. "chicken-head" becomes "chickenHead", and
+     *     "-chicken-head" becomes "ChickenHead".
+     *
+     * Parameters:
+     * str - {String} The string to be camelized.  The original is not modified.
+     * 
+     * Returns:
+     * {String} The string, camelized
+     */
+    camelize: function(str) {
+        var oStringList = str.split('-');
+        var camelizedString = oStringList[0];
+        for (var i=1, len=oStringList.length; i<len; i++) {
+            var s = oStringList[i];
+            camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
+        }
+        return camelizedString;
+    },
+    
+    /**
+     * APIFunction: format
+     * Given a string with tokens in the form ${token}, return a string
+     *     with tokens replaced with properties from the given context
+     *     object.  Represent a literal "${" by doubling it, e.g. "${${".
+     *
+     * Parameters:
+     * template - {String} A string with tokens to be replaced.  A template
+     *     has the form "literal ${token}" where the token will be replaced
+     *     by the value of context["token"].
+     * context - {Object} An optional object with properties corresponding
+     *     to the tokens in the format string.  If no context is sent, the
+     *     window object will be used.
+     * args - {Array} Optional arguments to pass to any functions found in
+     *     the context.  If a context property is a function, the token
+     *     will be replaced by the return from the function called with
+     *     these arguments.
+     *
+     * Returns:
+     * {String} A string with tokens replaced from the context object.
+     */
+    format: function(template, context, args) {
+        if(!context) {
+            context = window;
+        }
+
+        // Example matching: 
+        // str   = ${foo.bar}
+        // match = foo.bar
+        var replacer = function(str, match) {
+            var replacement;
+
+            // Loop through all subs. Example: ${a.b.c}
+            // 0 -> replacement = context[a];
+            // 1 -> replacement = context[a][b];
+            // 2 -> replacement = context[a][b][c];
+            var subs = match.split(/\.+/);
+            for (var i=0; i< subs.length; i++) {
+                if (i == 0) {
+                    replacement = context;
+                }
+                if (replacement === undefined) {
+                    break;
+                }
+                replacement = replacement[subs[i]];
+            }
+
+            if(typeof replacement == "function") {
+                replacement = args ?
+                    replacement.apply(null, args) :
+                    replacement();
+            }
+
+            // If replacement is undefined, return the string 'undefined'.
+            // This is a workaround for a bugs in browsers not properly 
+            // dealing with non-participating groups in regular expressions:
+            // http://blog.stevenlevithan.com/archives/npcg-javascript
+            if (typeof replacement == 'undefined') {
+                return 'undefined';
+            } else {
+                return replacement; 
+            }
+        };
+
+        return template.replace(OpenLayers.String.tokenRegEx, replacer);
+    },
+
+    /**
+     * Property: tokenRegEx
+     * Used to find tokens in a string.
+     * Examples: ${a}, ${a.b.c}, ${a-b}, ${5}
+     */
+    tokenRegEx:  /\$\{([\w.]+?)\}/g,
+    
+    /**
+     * Property: numberRegEx
+     * Used to test strings as numbers.
+     */
+    numberRegEx: /^([+-]?)(?=\d|\.\d)\d*(\.\d*)?([Ee]([+-]?\d+))?$/,
+    
+    /**
+     * APIFunction: isNumeric
+     * Determine whether a string contains only a numeric value.
+     *
+     * Examples:
+     * (code)
+     * OpenLayers.String.isNumeric("6.02e23") // true
+     * OpenLayers.String.isNumeric("12 dozen") // false
+     * OpenLayers.String.isNumeric("4") // true
+     * OpenLayers.String.isNumeric(" 4 ") // false
+     * (end)
+     *
+     * Returns:
+     * {Boolean} String contains only a number.
+     */
+    isNumeric: function(value) {
+        return OpenLayers.String.numberRegEx.test(value);
+    },
+    
+    /**
+     * APIFunction: numericIf
+     * Converts a string that appears to be a numeric value into a number.
+     * 
+     * Parameters:
+     * value - {String}
+     * trimWhitespace - {Boolean}
+     *
+     * Returns:
+     * {Number|String} a Number if the passed value is a number, a String
+     *     otherwise. 
+     */
+    numericIf: function(value, trimWhitespace) {
+        var originalValue = value;
+        if (trimWhitespace === true && value != null && value.replace) {
+            value = value.replace(/^\s*|\s*$/g, "");
+        }
+        return OpenLayers.String.isNumeric(value) ? parseFloat(value) : originalValue;
+    }
+
+};
+
+/**
+ * Namespace: OpenLayers.Number
+ * Contains convenience functions for manipulating numbers.
+ */
+OpenLayers.Number = {
+
+    /**
+     * Property: decimalSeparator
+     * Decimal separator to use when formatting numbers.
+     */
+    decimalSeparator: ".",
+    
+    /**
+     * Property: thousandsSeparator
+     * Thousands separator to use when formatting numbers.
+     */
+    thousandsSeparator: ",",
+    
+    /**
+     * APIFunction: limitSigDigs
+     * Limit the number of significant digits on a float.
+     * 
+     * Parameters:
+     * num - {Float}
+     * sig - {Integer}
+     * 
+     * Returns:
+     * {Float} The number, rounded to the specified number of significant
+     *     digits.
+     */
+    limitSigDigs: function(num, sig) {
+        var fig = 0;
+        if (sig > 0) {
+            fig = parseFloat(num.toPrecision(sig));
+        }
+        return fig;
+    },
+    
+    /**
+     * APIFunction: format
+     * Formats a number for output.
+     * 
+     * Parameters:
+     * num  - {Float}
+     * dec  - {Integer} Number of decimal places to round to.
+     *        Defaults to 0. Set to null to leave decimal places unchanged.
+     * tsep - {String} Thousands separator.
+     *        Default is ",".
+     * dsep - {String} Decimal separator.
+     *        Default is ".".
+     *
+     * Returns:
+     * {String} A string representing the formatted number.
+     */
+    format: function(num, dec, tsep, dsep) {
+        dec = (typeof dec != "undefined") ? dec : 0; 
+        tsep = (typeof tsep != "undefined") ? tsep :
+            OpenLayers.Number.thousandsSeparator; 
+        dsep = (typeof dsep != "undefined") ? dsep :
+            OpenLayers.Number.decimalSeparator;
+
+        if (dec != null) {
+            num = parseFloat(num.toFixed(dec));
+        }
+
+        var parts = num.toString().split(".");
+        if (parts.length == 1 && dec == null) {
+            // integer where we do not want to touch the decimals
+            dec = 0;
+        }
+        
+        var integer = parts[0];
+        if (tsep) {
+            var thousands = /(-?[0-9]+)([0-9]{3})/; 
+            while(thousands.test(integer)) { 
+                integer = integer.replace(thousands, "$1" + tsep + "$2"); 
+            }
+        }
+        
+        var str;
+        if (dec == 0) {
+            str = integer;
+        } else {
+            var rem = parts.length > 1 ? parts[1] : "0";
+            if (dec != null) {
+                rem = rem + new Array(dec - rem.length + 1).join("0");
+            }
+            str = integer + dsep + rem;
+        }
+        return str;
+    },
+
+    /**
+     * Method: zeroPad
+     * Create a zero padded string optionally with a radix for casting numbers.
+     *
+     * Parameters:
+     * num - {Number} The number to be zero padded.
+     * len - {Number} The length of the string to be returned.
+     * radix - {Number} An integer between 2 and 36 specifying the base to use
+     *     for representing numeric values.
+     */
+    zeroPad: function(num, len, radix) {
+        var str = num.toString(radix || 10);
+        while (str.length < len) {
+            str = "0" + str;
+        }
+        return str;
+    }    
+};
+
+/**
+ * Namespace: OpenLayers.Function
+ * Contains convenience functions for function manipulation.
+ */
+OpenLayers.Function = {
+    /**
+     * APIFunction: bind
+     * Bind a function to an object.  Method to easily create closures with
+     *     'this' altered.
+     * 
+     * Parameters:
+     * func - {Function} Input function.
+     * object - {Object} The object to bind to the input function (as this).
+     * 
+     * Returns:
+     * {Function} A closure with 'this' set to the passed in object.
+     */
+    bind: function(func, object) {
+        // create a reference to all arguments past the second one
+        var args = Array.prototype.slice.apply(arguments, [2]);
+        return function() {
+            // Push on any additional arguments from the actual function call.
+            // These will come after those sent to the bind call.
+            var newArgs = args.concat(
+                Array.prototype.slice.apply(arguments, [0])
+            );
+            return func.apply(object, newArgs);
+        };
+    },
+    
+    /**
+     * APIFunction: bindAsEventListener
+     * Bind a function to an object, and configure it to receive the event
+     *     object as first parameter when called. 
+     * 
+     * Parameters:
+     * func - {Function} Input function to serve as an event listener.
+     * object - {Object} A reference to this.
+     * 
+     * Returns:
+     * {Function}
+     */
+    bindAsEventListener: function(func, object) {
+        return function(event) {
+            return func.call(object, event || window.event);
+        };
+    },
+    
+    /**
+     * APIFunction: False
+     * A simple function to that just does "return false". We use this to 
+     * avoid attaching anonymous functions to DOM event handlers, which 
+     * causes "issues" on IE<8.
+     * 
+     * Usage:
+     * document.onclick = OpenLayers.Function.False;
+     * 
+     * Returns:
+     * {Boolean}
+     */
+    False : function() {
+        return false;
+    },
+
+    /**
+     * APIFunction: True
+     * A simple function to that just does "return true". We use this to 
+     * avoid attaching anonymous functions to DOM event handlers, which 
+     * causes "issues" on IE<8.
+     * 
+     * Usage:
+     * document.onclick = OpenLayers.Function.True;
+     * 
+     * Returns:
+     * {Boolean}
+     */
+    True : function() {
+        return true;
+    },
+    
+    /**
+     * APIFunction: Void
+     * A reusable function that returns ``undefined``.
+     *
+     * Returns:
+     * {undefined}
+     */
+    Void: function() {}
+
+};
+
+/**
+ * Namespace: OpenLayers.Array
+ * Contains convenience functions for array manipulation.
+ */
+OpenLayers.Array = {
+
+    /**
+     * APIMethod: filter
+     * Filter an array.  Provides the functionality of the
+     *     Array.prototype.filter extension to the ECMA-262 standard.  Where
+     *     available, Array.prototype.filter will be used.
+     *
+     * Based on well known example from http://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Global_Objects/Array/filter
+     *
+     * Parameters:
+     * array - {Array} The array to be filtered.  This array is not mutated.
+     *     Elements added to this array by the callback will not be visited.
+     * callback - {Function} A function that is called for each element in
+     *     the array.  If this function returns true, the element will be
+     *     included in the return.  The function will be called with three
+     *     arguments: the element in the array, the index of that element, and
+     *     the array itself.  If the optional caller parameter is specified
+     *     the callback will be called with this set to caller.
+     * caller - {Object} Optional object to be set as this when the callback
+     *     is called.
+     *
+     * Returns:
+     * {Array} An array of elements from the passed in array for which the
+     *     callback returns true.
+     */
+    filter: function(array, callback, caller) {
+        var selected = [];
+        if (Array.prototype.filter) {
+            selected = array.filter(callback, caller);
+        } else {
+            var len = array.length;
+            if (typeof callback != "function") {
+                throw new TypeError();
+            }
+            for(var i=0; i<len; i++) {
+                if (i in array) {
+                    var val = array[i];
+                    if (callback.call(caller, val, i, array)) {
+                        selected.push(val);
+                    }
+                }
+            }        
+        }
+        return selected;
+    }
+    
+};
+/* ======================================================================
+    OpenLayers/BaseTypes/Class.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/SingleFile.js
+ */
+
+/**
+ * Constructor: OpenLayers.Class
+ * Base class used to construct all other classes. Includes support for 
+ *     multiple inheritance. 
+ *     
+ * This constructor is new in OpenLayers 2.5.  At OpenLayers 3.0, the old 
+ *     syntax for creating classes and dealing with inheritance 
+ *     will be removed.
+ * 
+ * To create a new OpenLayers-style class, use the following syntax:
+ * (code)
+ *     var MyClass = OpenLayers.Class(prototype);
+ * (end)
+ *
+ * To create a new OpenLayers-style class with multiple inheritance, use the
+ *     following syntax:
+ * (code)
+ *     var MyClass = OpenLayers.Class(Class1, Class2, prototype);
+ * (end)
+ * 
+ * Note that instanceof reflection will only reveal Class1 as superclass.
+ *
+ */
+OpenLayers.Class = function() {
+    var len = arguments.length;
+    var P = arguments[0];
+    var F = arguments[len-1];
+
+    var C = typeof F.initialize == "function" ?
+        F.initialize :
+        function(){ P.prototype.initialize.apply(this, arguments); };
+
+    if (len > 1) {
+        var newArgs = [C, P].concat(
+                Array.prototype.slice.call(arguments).slice(1, len-1), F);
+        OpenLayers.inherit.apply(null, newArgs);
+    } else {
+        C.prototype = F;
+    }
+    return C;
+};
+
+/**
+ * Function: OpenLayers.inherit
+ *
+ * Parameters:
+ * C - {Object} the class that inherits
+ * P - {Object} the superclass to inherit from
+ *
+ * In addition to the mandatory C and P parameters, an arbitrary number of
+ * objects can be passed, which will extend C.
+ */
+OpenLayers.inherit = function(C, P) {
+   var F = function() {};
+   F.prototype = P.prototype;
+   C.prototype = new F;
+   var i, l, o;
+   for(i=2, l=arguments.length; i<l; i++) {
+       o = arguments[i];
+       if(typeof o === "function") {
+           o = o.prototype;
+       }
+       OpenLayers.Util.extend(C.prototype, o);
+   }
+};
+
+/**
+ * APIFunction: extend
+ * Copy all properties of a source object to a destination object.  Modifies
+ *     the passed in destination object.  Any properties on the source object
+ *     that are set to undefined will not be (re)set on the destination object.
+ *
+ * Parameters:
+ * destination - {Object} The object that will be modified
+ * source - {Object} The object with properties to be set on the destination
+ *
+ * Returns:
+ * {Object} The destination object.
+ */
+OpenLayers.Util = OpenLayers.Util || {};
+OpenLayers.Util.extend = function(destination, source) {
+    destination = destination || {};
+    if (source) {
+        for (var property in source) {
+            var value = source[property];
+            if (value !== undefined) {
+                destination[property] = value;
+            }
+        }
+
+        /**
+         * IE doesn't include the toString property when iterating over an object's
+         * properties with the for(property in object) syntax.  Explicitly check if
+         * the source has its own toString property.
+         */
+
+        /*
+         * FF/Windows < 2.0.0.13 reports "Illegal operation on WrappedNative
+         * prototype object" when calling hawOwnProperty if the source object
+         * is an instance of window.Event.
+         */
+
+        var sourceIsEvt = typeof window.Event == "function"
+                          && source instanceof window.Event;
+
+        if (!sourceIsEvt
+           && source.hasOwnProperty && source.hasOwnProperty("toString")) {
+            destination.toString = source.toString;
+        }
+    }
+    return destination;
+};
+/* ======================================================================
+    OpenLayers/BaseTypes/Bounds.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ */
+
+/**
+ * Class: OpenLayers.Bounds
+ * Instances of this class represent bounding boxes.  Data stored as left,
+ * bottom, right, top floats. All values are initialized to null, however,
+ * you should make sure you set them before using the bounds for anything.
+ * 
+ * Possible use case:
+ * (code)
+ *     bounds = new OpenLayers.Bounds();
+ *     bounds.extend(new OpenLayers.LonLat(4,5));
+ *     bounds.extend(new OpenLayers.LonLat(5,6));
+ *     bounds.toBBOX(); // returns 4,5,5,6
+ * (end)
+ */
+OpenLayers.Bounds = OpenLayers.Class({
+
+    /**
+     * Property: left
+     * {Number} Minimum horizontal coordinate.
+     */
+    left: null,
+
+    /**
+     * Property: bottom
+     * {Number} Minimum vertical coordinate.
+     */
+    bottom: null,
+
+    /**
+     * Property: right
+     * {Number} Maximum horizontal coordinate.
+     */
+    right: null,
+
+    /**
+     * Property: top
+     * {Number} Maximum vertical coordinate.
+     */
+    top: null,
+    
+    /**
+     * Property: centerLonLat
+     * {<OpenLayers.LonLat>} A cached center location.  This should not be
+     *     accessed directly.  Use <getCenterLonLat> instead.
+     */
+    centerLonLat: null,
+
+    /**
+     * Constructor: OpenLayers.Bounds
+     * Construct a new bounds object. Coordinates can either be passed as four
+     * arguments, or as a single argument.
+     *
+     * Parameters (four arguments):
+     * left - {Number} The left bounds of the box.  Note that for width
+     *        calculations, this is assumed to be less than the right value.
+     * bottom - {Number} The bottom bounds of the box.  Note that for height
+     *          calculations, this is assumed to be less than the top value.
+     * right - {Number} The right bounds.
+     * top - {Number} The top bounds.
+     *
+     * Parameters (single argument):
+     * bounds - {Array(Number)} [left, bottom, right, top]
+     */
+    initialize: function(left, bottom, right, top) {
+        if (OpenLayers.Util.isArray(left)) {
+            top = left[3];
+            right = left[2];
+            bottom = left[1];
+            left = left[0];
+        }
+        if (left != null) {
+            this.left = OpenLayers.Util.toFloat(left);
+        }
+        if (bottom != null) {
+            this.bottom = OpenLayers.Util.toFloat(bottom);
+        }
+        if (right != null) {
+            this.right = OpenLayers.Util.toFloat(right);
+        }
+        if (top != null) {
+            this.top = OpenLayers.Util.toFloat(top);
+        }
+    },
+
+    /**
+     * Method: clone
+     * Create a cloned instance of this bounds.
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} A fresh copy of the bounds
+     */
+    clone:function() {
+        return new OpenLayers.Bounds(this.left, this.bottom, 
+                                     this.right, this.top);
+    },
+
+    /**
+     * Method: equals
+     * Test a two bounds for equivalence.
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     *
+     * Returns:
+     * {Boolean} The passed-in bounds object has the same left,
+     *           right, top, bottom components as this.  Note that if bounds 
+     *           passed in is null, returns false.
+     */
+    equals:function(bounds) {
+        var equals = false;
+        if (bounds != null) {
+            equals = ((this.left == bounds.left) && 
+                      (this.right == bounds.right) &&
+                      (this.top == bounds.top) && 
+                      (this.bottom == bounds.bottom));
+        }
+        return equals;
+    },
+
+    /** 
+     * APIMethod: toString
+     * Returns a string representation of the bounds object.
+     * 
+     * Returns:
+     * {String} String representation of bounds object. 
+     */
+    toString:function() {
+        return [this.left, this.bottom, this.right, this.top].join(",");
+    },
+
+    /**
+     * APIMethod: toArray
+     * Returns an array representation of the bounds object.
+     *
+     * Returns an array of left, bottom, right, top properties, or -- when the
+     *     optional parameter is true -- an array of the  bottom, left, top,
+     *     right properties.
+     *
+     * Parameters:
+     * reverseAxisOrder - {Boolean} Should we reverse the axis order?
+     *
+     * Returns:
+     * {Array} array of left, bottom, right, top
+     */
+    toArray: function(reverseAxisOrder) {
+        if (reverseAxisOrder === true) {
+            return [this.bottom, this.left, this.top, this.right];
+        } else {
+            return [this.left, this.bottom, this.right, this.top];
+        }
+    },    
+
+    /** 
+     * APIMethod: toBBOX
+     * Returns a boundingbox-string representation of the bounds object.
+     * 
+     * Parameters:
+     * decimal - {Integer} How many significant digits in the bbox coords?
+     *                     Default is 6
+     * reverseAxisOrder - {Boolean} Should we reverse the axis order?
+     * 
+     * Returns:
+     * {String} Simple String representation of bounds object.
+     *          (e.g. "5,42,10,45")
+     */
+    toBBOX:function(decimal, reverseAxisOrder) {
+        if (decimal== null) {
+            decimal = 6; 
+        }
+        var mult = Math.pow(10, decimal);
+        var xmin = Math.round(this.left * mult) / mult;
+        var ymin = Math.round(this.bottom * mult) / mult;
+        var xmax = Math.round(this.right * mult) / mult;
+        var ymax = Math.round(this.top * mult) / mult;
+        if (reverseAxisOrder === true) {
+            return ymin + "," + xmin + "," + ymax + "," + xmax;
+        } else {
+            return xmin + "," + ymin + "," + xmax + "," + ymax;
+        }
+    },
+ 
+    /**
+     * APIMethod: toGeometry
+     * Create a new polygon geometry based on this bounds.
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.Polygon>} A new polygon with the coordinates
+     *     of this bounds.
+     */
+    toGeometry: function() {
+        return new OpenLayers.Geometry.Polygon([
+            new OpenLayers.Geometry.LinearRing([
+                new OpenLayers.Geometry.Point(this.left, this.bottom),
+                new OpenLayers.Geometry.Point(this.right, this.bottom),
+                new OpenLayers.Geometry.Point(this.right, this.top),
+                new OpenLayers.Geometry.Point(this.left, this.top)
+            ])
+        ]);
+    },
+    
+    /**
+     * APIMethod: getWidth
+     * Returns the width of the bounds.
+     * 
+     * Returns:
+     * {Float} The width of the bounds (right minus left).
+     */
+    getWidth:function() {
+        return (this.right - this.left);
+    },
+
+    /**
+     * APIMethod: getHeight
+     * Returns the height of the bounds.
+     * 
+     * Returns:
+     * {Float} The height of the bounds (top minus bottom).
+     */
+    getHeight:function() {
+        return (this.top - this.bottom);
+    },
+
+    /**
+     * APIMethod: getSize
+     * Returns an <OpenLayers.Size> object of the bounds.
+     * 
+     * Returns:
+     * {<OpenLayers.Size>} The size of the bounds.
+     */
+    getSize:function() {
+        return new OpenLayers.Size(this.getWidth(), this.getHeight());
+    },
+
+    /**
+     * APIMethod: getCenterPixel
+     * Returns the <OpenLayers.Pixel> object which represents the center of the
+     *     bounds.
+     * 
+     * Returns:
+     * {<OpenLayers.Pixel>} The center of the bounds in pixel space.
+     */
+    getCenterPixel:function() {
+        return new OpenLayers.Pixel( (this.left + this.right) / 2,
+                                     (this.bottom + this.top) / 2);
+    },
+
+    /**
+     * APIMethod: getCenterLonLat
+     * Returns the <OpenLayers.LonLat> object which represents the center of the
+     *     bounds.
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>} The center of the bounds in map space.
+     */
+    getCenterLonLat:function() {
+        if(!this.centerLonLat) {
+            this.centerLonLat = new OpenLayers.LonLat(
+                (this.left + this.right) / 2, (this.bottom + this.top) / 2
+            );
+        }
+        return this.centerLonLat;
+    },
+
+    /**
+     * APIMethod: scale
+     * Scales the bounds around a pixel or lonlat. Note that the new 
+     *     bounds may return non-integer properties, even if a pixel
+     *     is passed. 
+     * 
+     * Parameters:
+     * ratio - {Float} 
+     * origin - {<OpenLayers.Pixel> or <OpenLayers.LonLat>}
+     *          Default is center.
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} A new bounds that is scaled by ratio
+     *                      from origin.
+     */
+    scale: function(ratio, origin){
+        if(origin == null){
+            origin = this.getCenterLonLat();
+        }
+        
+        var origx,origy;
+
+        // get origin coordinates
+        if(origin.CLASS_NAME == "OpenLayers.LonLat"){
+            origx = origin.lon;
+            origy = origin.lat;
+        } else {
+            origx = origin.x;
+            origy = origin.y;
+        }
+
+        var left = (this.left - origx) * ratio + origx;
+        var bottom = (this.bottom - origy) * ratio + origy;
+        var right = (this.right - origx) * ratio + origx;
+        var top = (this.top - origy) * ratio + origy;
+        
+        return new OpenLayers.Bounds(left, bottom, right, top);
+    },
+
+    /**
+     * APIMethod: add
+     * Shifts the coordinates of the bound by the given horizontal and vertical
+     *     deltas.
+     *
+     * (start code)
+     * var bounds = new OpenLayers.Bounds(0, 0, 10, 10);
+     * bounds.toString();
+     * // => "0,0,10,10"
+     *
+     * bounds.add(-1.5, 4).toString();
+     * // => "-1.5,4,8.5,14"
+     * (end)
+     *
+     * This method will throw a TypeError if it is passed null as an argument.
+     *
+     * Parameters:
+     * x - {Float} horizontal delta
+     * y - {Float} vertical delta
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} A new bounds whose coordinates are the same as
+     *     this, but shifted by the passed-in x and y values.
+     */
+    add:function(x, y) {
+        if ( (x == null) || (y == null) ) {
+            throw new TypeError('Bounds.add cannot receive null values');
+        }
+        return new OpenLayers.Bounds(this.left + x, this.bottom + y,
+                                     this.right + x, this.top + y);
+    },
+    
+    /**
+     * APIMethod: extend
+     * Extend the bounds to include the <OpenLayers.LonLat>,
+     *     <OpenLayers.Geometry.Point> or <OpenLayers.Bounds> specified.
+     *
+     * Please note that this function assumes that left < right and
+     *     bottom < top.
+     *
+     * Parameters:
+     * object - {<OpenLayers.LonLat>, <OpenLayers.Geometry.Point> or
+     *     <OpenLayers.Bounds>} The object to be included in the new bounds
+     *     object.
+     */
+    extend:function(object) {
+        if (object) {
+            switch(object.CLASS_NAME) {
+                case "OpenLayers.LonLat":
+                    this.extendXY(object.lon, object.lat);
+                    break;
+                case "OpenLayers.Geometry.Point":
+                    this.extendXY(object.x, object.y);
+                    break;
+
+                case "OpenLayers.Bounds":
+                    // clear cached center location
+                    this.centerLonLat = null;
+
+                    if ( (this.left == null) || (object.left < this.left)) {
+                        this.left = object.left;
+                    }
+                    if ( (this.bottom == null) || (object.bottom < this.bottom) ) {
+                        this.bottom = object.bottom;
+                    }
+                    if ( (this.right == null) || (object.right > this.right) ) {
+                        this.right = object.right;
+                    }
+                    if ( (this.top == null) || (object.top > this.top) ) {
+                        this.top = object.top;
+                    }
+                    break;
+            }
+        }
+    },
+
+    /**
+     * APIMethod: extendXY
+     * Extend the bounds to include the XY coordinate specified.
+     *
+     * Parameters:
+     * x - {number} The X part of the the coordinate.
+     * y - {number} The Y part of the the coordinate.
+     */
+    extendXY:function(x, y) {
+        // clear cached center location
+        this.centerLonLat = null;
+
+        if ((this.left == null) || (x < this.left)) {
+            this.left = x;
+        }
+        if ((this.bottom == null) || (y < this.bottom)) {
+            this.bottom = y;
+        }
+        if ((this.right == null) || (x > this.right)) {
+            this.right = x;
+        }
+        if ((this.top == null) || (y > this.top)) {
+            this.top = y;
+        }
+    },
+
+    /**
+     * APIMethod: containsLonLat
+     * Returns whether the bounds object contains the given <OpenLayers.LonLat>.
+     * 
+     * Parameters:
+     * ll - {<OpenLayers.LonLat>|Object} OpenLayers.LonLat or an
+     *     object with a 'lon' and 'lat' properties.
+     * options - {Object} Optional parameters
+     *
+     * Acceptable options:
+     * inclusive - {Boolean} Whether or not to include the border.
+     *     Default is true.
+     * worldBounds - {<OpenLayers.Bounds>} If a worldBounds is provided, the
+     *     ll will be considered as contained if it exceeds the world bounds,
+     *     but can be wrapped around the dateline so it is contained by this
+     *     bounds.
+     *
+     * Returns:
+     * {Boolean} The passed-in lonlat is within this bounds.
+     */
+    containsLonLat: function(ll, options) {
+        if (typeof options === "boolean") {
+            options =  {inclusive: options};
+        }
+        options = options || {};
+        var contains = this.contains(ll.lon, ll.lat, options.inclusive),
+            worldBounds = options.worldBounds;
+        if (worldBounds && !contains) {
+            var worldWidth = worldBounds.getWidth();
+            var worldCenterX = (worldBounds.left + worldBounds.right) / 2;
+            var worldsAway = Math.round((ll.lon - worldCenterX) / worldWidth);
+            contains = this.containsLonLat({
+                lon: ll.lon - worldsAway * worldWidth,
+                lat: ll.lat
+            }, {inclusive: options.inclusive});
+        }
+        return contains;
+    },
+
+    /**
+     * APIMethod: containsPixel
+     * Returns whether the bounds object contains the given <OpenLayers.Pixel>.
+     * 
+     * Parameters:
+     * px - {<OpenLayers.Pixel>}
+     * inclusive - {Boolean} Whether or not to include the border. Default is
+     *     true.
+     *
+     * Returns:
+     * {Boolean} The passed-in pixel is within this bounds.
+     */
+    containsPixel:function(px, inclusive) {
+        return this.contains(px.x, px.y, inclusive);
+    },
+    
+    /**
+     * APIMethod: contains
+     * Returns whether the bounds object contains the given x and y.
+     * 
+     * Parameters:
+     * x - {Float}
+     * y - {Float}
+     * inclusive - {Boolean} Whether or not to include the border. Default is
+     *     true.
+     *
+     * Returns:
+     * {Boolean} Whether or not the passed-in coordinates are within this
+     *     bounds.
+     */
+    contains:function(x, y, inclusive) {
+        //set default
+        if (inclusive == null) {
+            inclusive = true;
+        }
+
+        if (x == null || y == null) {
+            return false;
+        }
+
+        x = OpenLayers.Util.toFloat(x);
+        y = OpenLayers.Util.toFloat(y);
+
+        var contains = false;
+        if (inclusive) {
+            contains = ((x >= this.left) && (x <= this.right) && 
+                        (y >= this.bottom) && (y <= this.top));
+        } else {
+            contains = ((x > this.left) && (x < this.right) && 
+                        (y > this.bottom) && (y < this.top));
+        }              
+        return contains;
+    },
+
+    /**
+     * APIMethod: intersectsBounds
+     * Determine whether the target bounds intersects this bounds.  Bounds are
+     *     considered intersecting if any of their edges intersect or if one
+     *     bounds contains the other.
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>} The target bounds.
+     * options - {Object} Optional parameters.
+     * 
+     * Acceptable options:
+     * inclusive - {Boolean} Treat coincident borders as intersecting.  Default
+     *     is true.  If false, bounds that do not overlap but only touch at the
+     *     border will not be considered as intersecting.
+     * worldBounds - {<OpenLayers.Bounds>} If a worldBounds is provided, two
+     *     bounds will be considered as intersecting if they intersect when 
+     *     shifted to within the world bounds.  This applies only to bounds that
+     *     cross or are completely outside the world bounds.
+     *
+     * Returns:
+     * {Boolean} The passed-in bounds object intersects this bounds.
+     */
+    intersectsBounds:function(bounds, options) {
+        if (typeof options === "boolean") {
+            options =  {inclusive: options};
+        }
+        options = options || {};
+        if (options.worldBounds) {
+            var self = this.wrapDateLine(options.worldBounds);
+            bounds = bounds.wrapDateLine(options.worldBounds);
+        } else {
+            self = this;
+        }
+        if (options.inclusive == null) {
+            options.inclusive = true;
+        }
+        var intersects = false;
+        var mightTouch = (
+            self.left == bounds.right ||
+            self.right == bounds.left ||
+            self.top == bounds.bottom ||
+            self.bottom == bounds.top
+        );
+        
+        // if the two bounds only touch at an edge, and inclusive is false,
+        // then the bounds don't *really* intersect.
+        if (options.inclusive || !mightTouch) {
+            // otherwise, if one of the boundaries even partially contains another,
+            // inclusive of the edges, then they do intersect.
+            var inBottom = (
+                ((bounds.bottom >= self.bottom) && (bounds.bottom <= self.top)) ||
+                ((self.bottom >= bounds.bottom) && (self.bottom <= bounds.top))
+            );
+            var inTop = (
+                ((bounds.top >= self.bottom) && (bounds.top <= self.top)) ||
+                ((self.top > bounds.bottom) && (self.top < bounds.top))
+            );
+            var inLeft = (
+                ((bounds.left >= self.left) && (bounds.left <= self.right)) ||
+                ((self.left >= bounds.left) && (self.left <= bounds.right))
+            );
+            var inRight = (
+                ((bounds.right >= self.left) && (bounds.right <= self.right)) ||
+                ((self.right >= bounds.left) && (self.right <= bounds.right))
+            );
+            intersects = ((inBottom || inTop) && (inLeft || inRight));
+        }
+        // document me
+        if (options.worldBounds && !intersects) {
+            var world = options.worldBounds;
+            var width = world.getWidth();
+            var selfCrosses = !world.containsBounds(self);
+            var boundsCrosses = !world.containsBounds(bounds);
+            if (selfCrosses && !boundsCrosses) {
+                bounds = bounds.add(-width, 0);
+                intersects = self.intersectsBounds(bounds, {inclusive: options.inclusive});
+            } else if (boundsCrosses && !selfCrosses) {
+                self = self.add(-width, 0);
+                intersects = bounds.intersectsBounds(self, {inclusive: options.inclusive});                
+            }
+        }
+        return intersects;
+    },
+    
+    /**
+     * APIMethod: containsBounds
+     * Returns whether the bounds object contains the given <OpenLayers.Bounds>.
+     * 
+     * bounds - {<OpenLayers.Bounds>} The target bounds.
+     * partial - {Boolean} If any of the target corners is within this bounds
+     *     consider the bounds contained.  Default is false.  If false, the
+     *     entire target bounds must be contained within this bounds.
+     * inclusive - {Boolean} Treat shared edges as contained.  Default is
+     *     true.
+     *
+     * Returns:
+     * {Boolean} The passed-in bounds object is contained within this bounds. 
+     */
+    containsBounds:function(bounds, partial, inclusive) {
+        if (partial == null) {
+            partial = false;
+        }
+        if (inclusive == null) {
+            inclusive = true;
+        }
+        var bottomLeft  = this.contains(bounds.left, bounds.bottom, inclusive);
+        var bottomRight = this.contains(bounds.right, bounds.bottom, inclusive);
+        var topLeft  = this.contains(bounds.left, bounds.top, inclusive);
+        var topRight = this.contains(bounds.right, bounds.top, inclusive);
+        
+        return (partial) ? (bottomLeft || bottomRight || topLeft || topRight)
+                         : (bottomLeft && bottomRight && topLeft && topRight);
+    },
+
+    /** 
+     * APIMethod: determineQuadrant
+     * Returns the the quadrant ("br", "tr", "tl", "bl") in which the given
+     *     <OpenLayers.LonLat> lies.
+     *
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     *
+     * Returns:
+     * {String} The quadrant ("br" "tr" "tl" "bl") of the bounds in which the
+     *     coordinate lies.
+     */
+    determineQuadrant: function(lonlat) {
+    
+        var quadrant = "";
+        var center = this.getCenterLonLat();
+        
+        quadrant += (lonlat.lat < center.lat) ? "b" : "t";
+        quadrant += (lonlat.lon < center.lon) ? "l" : "r";
+    
+        return quadrant; 
+    },
+    
+    /**
+     * APIMethod: transform
+     * Transform the Bounds object from source to dest. 
+     *
+     * Parameters: 
+     * source - {<OpenLayers.Projection>} Source projection. 
+     * dest   - {<OpenLayers.Projection>} Destination projection. 
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} Itself, for use in chaining operations.
+     */
+    transform: function(source, dest) {
+        // clear cached center location
+        this.centerLonLat = null;
+        var ll = OpenLayers.Projection.transform(
+            {'x': this.left, 'y': this.bottom}, source, dest);
+        var lr = OpenLayers.Projection.transform(
+            {'x': this.right, 'y': this.bottom}, source, dest);
+        var ul = OpenLayers.Projection.transform(
+            {'x': this.left, 'y': this.top}, source, dest);
+        var ur = OpenLayers.Projection.transform(
+            {'x': this.right, 'y': this.top}, source, dest);
+        this.left   = Math.min(ll.x, ul.x);
+        this.bottom = Math.min(ll.y, lr.y);
+        this.right  = Math.max(lr.x, ur.x);
+        this.top    = Math.max(ul.y, ur.y);
+        return this;
+    },
+
+    /**
+     * APIMethod: wrapDateLine
+     * Wraps the bounds object around the dateline.
+     *  
+     * Parameters:
+     * maxExtent - {<OpenLayers.Bounds>}
+     * options - {Object} Some possible options are:
+     *
+     * Allowed Options:
+     *                    leftTolerance - {float} Allow for a margin of error 
+     *                                            with the 'left' value of this 
+     *                                            bound.
+     *                                            Default is 0.
+     *                    rightTolerance - {float} Allow for a margin of error 
+     *                                             with the 'right' value of 
+     *                                             this bound.
+     *                                             Default is 0.
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} A copy of this bounds, but wrapped around the 
+     *                       "dateline" (as specified by the borders of 
+     *                       maxExtent). Note that this function only returns 
+     *                       a different bounds value if this bounds is 
+     *                       *entirely* outside of the maxExtent. If this 
+     *                       bounds straddles the dateline (is part in/part 
+     *                       out of maxExtent), the returned bounds will always 
+     *                       cross the left edge of the given maxExtent.
+     *.
+     */
+    wrapDateLine: function(maxExtent, options) {    
+        options = options || {};
+        
+        var leftTolerance = options.leftTolerance || 0;
+        var rightTolerance = options.rightTolerance || 0;
+
+        var newBounds = this.clone();
+    
+        if (maxExtent) {
+            var width = maxExtent.getWidth();
+
+            //shift right?
+            while (newBounds.left < maxExtent.left && 
+                   newBounds.right - rightTolerance <= maxExtent.left ) { 
+                newBounds = newBounds.add(width, 0);
+            }
+
+            //shift left?
+            while (newBounds.left + leftTolerance >= maxExtent.right && 
+                   newBounds.right > maxExtent.right ) { 
+                newBounds = newBounds.add(-width, 0);
+            }
+           
+            // crosses right only? force left
+            var newLeft = newBounds.left + leftTolerance;
+            if (newLeft < maxExtent.right && newLeft > maxExtent.left && 
+                   newBounds.right - rightTolerance > maxExtent.right) {
+                newBounds = newBounds.add(-width, 0);
+            }
+        }
+                
+        return newBounds;
+    },
+
+    CLASS_NAME: "OpenLayers.Bounds"
+});
+
+/** 
+ * APIFunction: fromString
+ * Alternative constructor that builds a new OpenLayers.Bounds from a 
+ *     parameter string.
+ *
+ * (begin code)
+ * OpenLayers.Bounds.fromString("5,42,10,45");
+ * // => equivalent to ...
+ * new OpenLayers.Bounds(5, 42, 10, 45);
+ * (end)
+ *
+ * Parameters: 
+ * str - {String} Comma-separated bounds string. (e.g. "5,42,10,45")
+ * reverseAxisOrder - {Boolean} Does the string use reverse axis order?
+ *
+ * Returns:
+ * {<OpenLayers.Bounds>} New bounds object built from the 
+ *                       passed-in String.
+ */
+OpenLayers.Bounds.fromString = function(str, reverseAxisOrder) {
+    var bounds = str.split(",");
+    return OpenLayers.Bounds.fromArray(bounds, reverseAxisOrder);
+};
+
+/** 
+ * APIFunction: fromArray
+ * Alternative constructor that builds a new OpenLayers.Bounds from an array.
+ *
+ * (begin code)
+ * OpenLayers.Bounds.fromArray( [5, 42, 10, 45] );
+ * // => equivalent to ...
+ * new OpenLayers.Bounds(5, 42, 10, 45);
+ * (end)
+ *
+ * Parameters:
+ * bbox - {Array(Float)} Array of bounds values (e.g. [5,42,10,45])
+ * reverseAxisOrder - {Boolean} Does the array use reverse axis order?
+ *
+ * Returns:
+ * {<OpenLayers.Bounds>} New bounds object built from the passed-in Array.
+ */
+OpenLayers.Bounds.fromArray = function(bbox, reverseAxisOrder) {
+    return reverseAxisOrder === true ?
+           new OpenLayers.Bounds(bbox[1], bbox[0], bbox[3], bbox[2]) :
+           new OpenLayers.Bounds(bbox[0], bbox[1], bbox[2], bbox[3]);
+};
+
+/** 
+ * APIFunction: fromSize
+ * Alternative constructor that builds a new OpenLayers.Bounds from a size.
+ *
+ * (begin code)
+ * OpenLayers.Bounds.fromSize( new OpenLayers.Size(10, 20) );
+ * // => equivalent to ...
+ * new OpenLayers.Bounds(0, 20, 10, 0);
+ * (end)
+ *
+ * Parameters:
+ * size - {<OpenLayers.Size> or Object} <OpenLayers.Size> or an object with
+ *     both 'w' and 'h' properties.
+ *
+ * Returns:
+ * {<OpenLayers.Bounds>} New bounds object built from the passed-in size.
+ */
+OpenLayers.Bounds.fromSize = function(size) {
+    return new OpenLayers.Bounds(0,
+                                 size.h,
+                                 size.w,
+                                 0);
+};
+
+/**
+ * Function: oppositeQuadrant
+ * Get the opposite quadrant for a given quadrant string.
+ *
+ * (begin code)
+ * OpenLayers.Bounds.oppositeQuadrant( "tl" );
+ * // => "br"
+ *
+ * OpenLayers.Bounds.oppositeQuadrant( "tr" );
+ * // => "bl"
+ * (end)
+ *
+ * Parameters:
+ * quadrant - {String} two character quadrant shortstring
+ *
+ * Returns:
+ * {String} The opposing quadrant ("br" "tr" "tl" "bl"). For Example, if 
+ *          you pass in "bl" it returns "tr", if you pass in "br" it 
+ *          returns "tl", etc.
+ */
+OpenLayers.Bounds.oppositeQuadrant = function(quadrant) {
+    var opp = "";
+    
+    opp += (quadrant.charAt(0) == 't') ? 'b' : 't';
+    opp += (quadrant.charAt(1) == 'l') ? 'r' : 'l';
+    
+    return opp;
+};
+/* ======================================================================
+    OpenLayers/BaseTypes/Element.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Util.js
+ * @requires OpenLayers/BaseTypes.js
+ */
+
+/**
+ * Namespace: OpenLayers.Element
+ */
+OpenLayers.Element = {
+
+    /**
+     * APIFunction: visible
+     * 
+     * Parameters: 
+     * element - {DOMElement}
+     * 
+     * Returns:
+     * {Boolean} Is the element visible?
+     */
+    visible: function(element) {
+        return OpenLayers.Util.getElement(element).style.display != 'none';
+    },
+
+    /**
+     * APIFunction: toggle
+     * Toggle the visibility of element(s) passed in
+     * 
+     * Parameters:
+     * element - {DOMElement} Actually user can pass any number of elements
+     */
+    toggle: function() {
+        for (var i=0, len=arguments.length; i<len; i++) {
+            var element = OpenLayers.Util.getElement(arguments[i]);
+            var display = OpenLayers.Element.visible(element) ? 'none' 
+                                                              : '';
+            element.style.display = display;
+        }
+    },
+
+    /**
+     * APIFunction: remove
+     * Remove the specified element from the DOM.
+     * 
+     * Parameters:
+     * element - {DOMElement}
+     */
+    remove: function(element) {
+        element = OpenLayers.Util.getElement(element);
+        element.parentNode.removeChild(element);
+    },
+
+    /**
+     * APIFunction: getHeight
+     *  
+     * Parameters:
+     * element - {DOMElement}
+     * 
+     * Returns:
+     * {Integer} The offset height of the element passed in
+     */
+    getHeight: function(element) {
+        element = OpenLayers.Util.getElement(element);
+        return element.offsetHeight;
+    },
+
+    /**
+     * Function: hasClass
+     * Tests if an element has the given CSS class name.
+     *
+     * Parameters:
+     * element - {DOMElement} A DOM element node.
+     * name - {String} The CSS class name to search for.
+     *
+     * Returns:
+     * {Boolean} The element has the given class name.
+     */
+    hasClass: function(element, name) {
+        var names = element.className;
+        return (!!names && new RegExp("(^|\\s)" + name + "(\\s|$)").test(names));
+    },
+    
+    /**
+     * Function: addClass
+     * Add a CSS class name to an element.  Safe where element already has
+     *     the class name.
+     *
+     * Parameters:
+     * element - {DOMElement} A DOM element node.
+     * name - {String} The CSS class name to add.
+     *
+     * Returns:
+     * {DOMElement} The element.
+     */
+    addClass: function(element, name) {
+        if(!OpenLayers.Element.hasClass(element, name)) {
+            element.className += (element.className ? " " : "") + name;
+        }
+        return element;
+    },
+
+    /**
+     * Function: removeClass
+     * Remove a CSS class name from an element.  Safe where element does not
+     *     have the class name.
+     *
+     * Parameters:
+     * element - {DOMElement} A DOM element node.
+     * name - {String} The CSS class name to remove.
+     *
+     * Returns:
+     * {DOMElement} The element.
+     */
+    removeClass: function(element, name) {
+        var names = element.className;
+        if(names) {
+            element.className = OpenLayers.String.trim(
+                names.replace(
+                    new RegExp("(^|\\s+)" + name + "(\\s+|$)"), " "
+                )
+            );
+        }
+        return element;
+    },
+
+    /**
+     * Function: toggleClass
+     * Remove a CSS class name from an element if it exists.  Add the class name
+     *     if it doesn't exist.
+     *
+     * Parameters:
+     * element - {DOMElement} A DOM element node.
+     * name - {String} The CSS class name to toggle.
+     *
+     * Returns:
+     * {DOMElement} The element.
+     */
+    toggleClass: function(element, name) {
+        if(OpenLayers.Element.hasClass(element, name)) {
+            OpenLayers.Element.removeClass(element, name);
+        } else {
+            OpenLayers.Element.addClass(element, name);
+        }
+        return element;
+    },
+
+    /**
+     * APIFunction: getStyle
+     * 
+     * Parameters:
+     * element - {DOMElement}
+     * style - {?}
+     * 
+     * Returns:
+     * {?}
+     */
+    getStyle: function(element, style) {
+        element = OpenLayers.Util.getElement(element);
+
+        var value = null;
+        if (element && element.style) {
+            value = element.style[OpenLayers.String.camelize(style)];
+            if (!value) {
+                if (document.defaultView && 
+                    document.defaultView.getComputedStyle) {
+                    
+                    var css = document.defaultView.getComputedStyle(element, null);
+                    value = css ? css.getPropertyValue(style) : null;
+                } else if (element.currentStyle) {
+                    value = element.currentStyle[OpenLayers.String.camelize(style)];
+                }
+            }
+        
+            var positions = ['left', 'top', 'right', 'bottom'];
+            if (window.opera &&
+                (OpenLayers.Util.indexOf(positions,style) != -1) &&
+                (OpenLayers.Element.getStyle(element, 'position') == 'static')) { 
+                value = 'auto';
+            }
+        }
+    
+        return value == 'auto' ? null : value;
+    }
+
+};
+/* ======================================================================
+    OpenLayers/BaseTypes/LonLat.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ */
+
+/**
+ * Class: OpenLayers.LonLat
+ * This class represents a longitude and latitude pair
+ */
+OpenLayers.LonLat = OpenLayers.Class({
+
+    /** 
+     * APIProperty: lon
+     * {Float} The x-axis coodinate in map units
+     */
+    lon: 0.0,
+    
+    /** 
+     * APIProperty: lat
+     * {Float} The y-axis coordinate in map units
+     */
+    lat: 0.0,
+
+    /**
+     * Constructor: OpenLayers.LonLat
+     * Create a new map location. Coordinates can be passed either as two
+     * arguments, or as a single argument.
+     *
+     * Parameters (two arguments):
+     * lon - {Number} The x-axis coordinate in map units.  If your map is in
+     *     a geographic projection, this will be the Longitude.  Otherwise,
+     *     it will be the x coordinate of the map location in your map units.
+     * lat - {Number} The y-axis coordinate in map units.  If your map is in
+     *     a geographic projection, this will be the Latitude.  Otherwise,
+     *     it will be the y coordinate of the map location in your map units.
+     *
+     * Parameters (single argument):
+     * location - {Array(Float)} [lon, lat]
+     */
+    initialize: function(lon, lat) {
+        if (OpenLayers.Util.isArray(lon)) {
+            lat = lon[1];
+            lon = lon[0];
+        }
+        this.lon = OpenLayers.Util.toFloat(lon);
+        this.lat = OpenLayers.Util.toFloat(lat);
+    },
+    
+    /**
+     * Method: toString
+     * Return a readable string version of the lonlat
+     *
+     * Returns:
+     * {String} String representation of OpenLayers.LonLat object. 
+     *           (e.g. <i>"lon=5,lat=42"</i>)
+     */
+    toString:function() {
+        return ("lon=" + this.lon + ",lat=" + this.lat);
+    },
+
+    /** 
+     * APIMethod: toShortString
+     * 
+     * Returns:
+     * {String} Shortened String representation of OpenLayers.LonLat object. 
+     *         (e.g. <i>"5, 42"</i>)
+     */
+    toShortString:function() {
+        return (this.lon + ", " + this.lat);
+    },
+
+    /** 
+     * APIMethod: clone
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>} New OpenLayers.LonLat object with the same lon 
+     *                       and lat values
+     */
+    clone:function() {
+        return new OpenLayers.LonLat(this.lon, this.lat);
+    },
+
+    /** 
+     * APIMethod: add
+     * 
+     * Parameters:
+     * lon - {Float}
+     * lat - {Float}
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>} A new OpenLayers.LonLat object with the lon and 
+     *                       lat passed-in added to this's. 
+     */
+    add:function(lon, lat) {
+        if ( (lon == null) || (lat == null) ) {
+            throw new TypeError('LonLat.add cannot receive null values');
+        }
+        return new OpenLayers.LonLat(this.lon + OpenLayers.Util.toFloat(lon), 
+                                     this.lat + OpenLayers.Util.toFloat(lat));
+    },
+
+    /** 
+     * APIMethod: equals
+     * 
+     * Parameters:
+     * ll - {<OpenLayers.LonLat>}
+     * 
+     * Returns:
+     * {Boolean} Boolean value indicating whether the passed-in 
+     *           <OpenLayers.LonLat> object has the same lon and lat 
+     *           components as this.
+     *           Note: if ll passed in is null, returns false
+     */
+    equals:function(ll) {
+        var equals = false;
+        if (ll != null) {
+            equals = ((this.lon == ll.lon && this.lat == ll.lat) ||
+                      (isNaN(this.lon) && isNaN(this.lat) && isNaN(ll.lon) && isNaN(ll.lat)));
+        }
+        return equals;
+    },
+
+    /**
+     * APIMethod: transform
+     * Transform the LonLat object from source to dest. This transformation is
+     *    *in place*: if you want a *new* lonlat, use .clone() first.
+     *
+     * Parameters: 
+     * source - {<OpenLayers.Projection>} Source projection. 
+     * dest   - {<OpenLayers.Projection>} Destination projection. 
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>} Itself, for use in chaining operations.
+     */
+    transform: function(source, dest) {
+        var point = OpenLayers.Projection.transform(
+            {'x': this.lon, 'y': this.lat}, source, dest);
+        this.lon = point.x;
+        this.lat = point.y;
+        return this;
+    },
+    
+    /**
+     * APIMethod: wrapDateLine
+     * 
+     * Parameters:
+     * maxExtent - {<OpenLayers.Bounds>}
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>} A copy of this lonlat, but wrapped around the 
+     *                       "dateline" (as specified by the borders of 
+     *                       maxExtent)
+     */
+    wrapDateLine: function(maxExtent) {    
+
+        var newLonLat = this.clone();
+    
+        if (maxExtent) {
+            //shift right?
+            while (newLonLat.lon < maxExtent.left) {
+                newLonLat.lon +=  maxExtent.getWidth();
+            }    
+           
+            //shift left?
+            while (newLonLat.lon > maxExtent.right) {
+                newLonLat.lon -= maxExtent.getWidth();
+            }    
+        }
+                
+        return newLonLat;
+    },
+
+    CLASS_NAME: "OpenLayers.LonLat"
+});
+
+/** 
+ * Function: fromString
+ * Alternative constructor that builds a new <OpenLayers.LonLat> from a 
+ *     parameter string
+ * 
+ * Parameters:
+ * str - {String} Comma-separated Lon,Lat coordinate string. 
+ *                 (e.g. <i>"5,40"</i>)
+ * 
+ * Returns:
+ * {<OpenLayers.LonLat>} New <OpenLayers.LonLat> object built from the 
+ *                       passed-in String.
+ */
+OpenLayers.LonLat.fromString = function(str) {
+    var pair = str.split(",");
+    return new OpenLayers.LonLat(pair[0], pair[1]);
+};
+
+/** 
+ * Function: fromArray
+ * Alternative constructor that builds a new <OpenLayers.LonLat> from an 
+ *     array of two numbers that represent lon- and lat-values.
+ * 
+ * Parameters:
+ * arr - {Array(Float)} Array of lon/lat values (e.g. [5,-42])
+ * 
+ * Returns:
+ * {<OpenLayers.LonLat>} New <OpenLayers.LonLat> object built from the 
+ *                       passed-in array.
+ */
+OpenLayers.LonLat.fromArray = function(arr) {
+    var gotArr = OpenLayers.Util.isArray(arr),
+        lon = gotArr && arr[0],
+        lat = gotArr && arr[1];
+    return new OpenLayers.LonLat(lon, lat);
+};
+/* ======================================================================
+    OpenLayers/BaseTypes/Pixel.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ */
+
+/**
+ * Class: OpenLayers.Pixel
+ * This class represents a screen coordinate, in x and y coordinates
+ */
+OpenLayers.Pixel = OpenLayers.Class({
+    
+    /**
+     * APIProperty: x
+     * {Number} The x coordinate
+     */
+    x: 0.0,
+
+    /**
+     * APIProperty: y
+     * {Number} The y coordinate
+     */
+    y: 0.0,
+    
+    /**
+     * Constructor: OpenLayers.Pixel
+     * Create a new OpenLayers.Pixel instance
+     *
+     * Parameters:
+     * x - {Number} The x coordinate
+     * y - {Number} The y coordinate
+     *
+     * Returns:
+     * An instance of OpenLayers.Pixel
+     */
+    initialize: function(x, y) {
+        this.x = parseFloat(x);
+        this.y = parseFloat(y);
+    },
+    
+    /**
+     * Method: toString
+     * Cast this object into a string
+     *
+     * Returns:
+     * {String} The string representation of Pixel. ex: "x=200.4,y=242.2"
+     */
+    toString:function() {
+        return ("x=" + this.x + ",y=" + this.y);
+    },
+
+    /**
+     * APIMethod: clone
+     * Return a clone of this pixel object
+     *
+     * Returns:
+     * {<OpenLayers.Pixel>} A clone pixel
+     */
+    clone:function() {
+        return new OpenLayers.Pixel(this.x, this.y); 
+    },
+    
+    /**
+     * APIMethod: equals
+     * Determine whether one pixel is equivalent to another
+     *
+     * Parameters:
+     * px - {<OpenLayers.Pixel>|Object} An OpenLayers.Pixel or an object with
+     *                                  a 'x' and 'y' properties.
+     *
+     * Returns:
+     * {Boolean} The point passed in as parameter is equal to this. Note that
+     * if px passed in is null, returns false.
+     */
+    equals:function(px) {
+        var equals = false;
+        if (px != null) {
+            equals = ((this.x == px.x && this.y == px.y) ||
+                      (isNaN(this.x) && isNaN(this.y) && isNaN(px.x) && isNaN(px.y)));
+        }
+        return equals;
+    },
+
+    /**
+     * APIMethod: distanceTo
+     * Returns the distance to the pixel point passed in as a parameter.
+     *
+     * Parameters:
+     * px - {<OpenLayers.Pixel>}
+     *
+     * Returns:
+     * {Float} The pixel point passed in as parameter to calculate the
+     *     distance to.
+     */
+    distanceTo:function(px) {
+        return Math.sqrt(
+            Math.pow(this.x - px.x, 2) +
+            Math.pow(this.y - px.y, 2)
+        );
+    },
+
+    /**
+     * APIMethod: add
+     *
+     * Parameters:
+     * x - {Integer}
+     * y - {Integer}
+     *
+     * Returns:
+     * {<OpenLayers.Pixel>} A new Pixel with this pixel's x&y augmented by the 
+     * values passed in.
+     */
+    add:function(x, y) {
+        if ( (x == null) || (y == null) ) {
+            throw new TypeError('Pixel.add cannot receive null values');
+        }
+        return new OpenLayers.Pixel(this.x + x, this.y + y);
+    },
+
+    /**
+    * APIMethod: offset
+    * 
+    * Parameters
+    * px - {<OpenLayers.Pixel>|Object} An OpenLayers.Pixel or an object with
+    *                                  a 'x' and 'y' properties.
+    * 
+    * Returns:
+    * {<OpenLayers.Pixel>} A new Pixel with this pixel's x&y augmented by the 
+    *                      x&y values of the pixel passed in.
+    */
+    offset:function(px) {
+        var newPx = this.clone();
+        if (px) {
+            newPx = this.add(px.x, px.y);
+        }
+        return newPx;
+    },
+
+    CLASS_NAME: "OpenLayers.Pixel"
+});
+/* ======================================================================
+    OpenLayers/BaseTypes/Size.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ */
+
+/**
+ * Class: OpenLayers.Size
+ * Instances of this class represent a width/height pair
+ */
+OpenLayers.Size = OpenLayers.Class({
+
+    /**
+     * APIProperty: w
+     * {Number} width
+     */
+    w: 0.0,
+    
+    /**
+     * APIProperty: h
+     * {Number} height
+     */
+    h: 0.0,
+
+
+    /**
+     * Constructor: OpenLayers.Size
+     * Create an instance of OpenLayers.Size
+     *
+     * Parameters:
+     * w - {Number} width
+     * h - {Number} height
+     */
+    initialize: function(w, h) {
+        this.w = parseFloat(w);
+        this.h = parseFloat(h);
+    },
+
+    /**
+     * Method: toString
+     * Return the string representation of a size object
+     *
+     * Returns:
+     * {String} The string representation of OpenLayers.Size object. 
+     * (e.g. <i>"w=55,h=66"</i>)
+     */
+    toString:function() {
+        return ("w=" + this.w + ",h=" + this.h);
+    },
+
+    /**
+     * APIMethod: clone
+     * Create a clone of this size object
+     *
+     * Returns:
+     * {<OpenLayers.Size>} A new OpenLayers.Size object with the same w and h
+     * values
+     */
+    clone:function() {
+        return new OpenLayers.Size(this.w, this.h);
+    },
+
+    /**
+     *
+     * APIMethod: equals
+     * Determine where this size is equal to another
+     *
+     * Parameters:
+     * sz - {<OpenLayers.Size>|Object} An OpenLayers.Size or an object with
+     *                                  a 'w' and 'h' properties.
+     *
+     * Returns: 
+     * {Boolean} The passed in size has the same h and w properties as this one.
+     * Note that if sz passed in is null, returns false.
+     */
+    equals:function(sz) {
+        var equals = false;
+        if (sz != null) {
+            equals = ((this.w == sz.w && this.h == sz.h) ||
+                      (isNaN(this.w) && isNaN(this.h) && isNaN(sz.w) && isNaN(sz.h)));
+        }
+        return equals;
+    },
+
+    CLASS_NAME: "OpenLayers.Size"
+});
+/* ======================================================================
+    OpenLayers/Console.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ */
+
+/**
+ * Namespace: OpenLayers.Console
+ * The OpenLayers.Console namespace is used for debugging and error logging.
+ * If the Firebug Lite (../Firebug/firebug.js) is included before this script,
+ * calls to OpenLayers.Console methods will get redirected to window.console.
+ * This makes use of the Firebug extension where available and allows for
+ * cross-browser debugging Firebug style.
+ *
+ * Note:
+ * Note that behavior will differ with the Firebug extention and Firebug Lite.
+ * Most notably, the Firebug Lite console does not currently allow for
+ * hyperlinks to code or for clicking on object to explore their properties.
+ * 
+ */
+OpenLayers.Console = {
+    /**
+     * Create empty functions for all console methods.  The real value of these
+     * properties will be set if Firebug Lite (../Firebug/firebug.js script) is
+     * included.  We explicitly require the Firebug Lite script to trigger
+     * functionality of the OpenLayers.Console methods.
+     */
+    
+    /**
+     * APIFunction: log
+     * Log an object in the console.  The Firebug Lite console logs string
+     * representation of objects.  Given multiple arguments, they will
+     * be cast to strings and logged with a space delimiter.  If the first
+     * argument is a string with printf-like formatting, subsequent arguments
+     * will be used in string substitution.  Any additional arguments (beyond
+     * the number substituted in a format string) will be appended in a space-
+     * delimited line.
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    log: function() {},
+
+    /**
+     * APIFunction: debug
+     * Writes a message to the console, including a hyperlink to the line
+     * where it was called.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    debug: function() {},
+
+    /**
+     * APIFunction: info
+     * Writes a message to the console with the visual "info" icon and color
+     * coding and a hyperlink to the line where it was called.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    info: function() {},
+
+    /**
+     * APIFunction: warn
+     * Writes a message to the console with the visual "warning" icon and
+     * color coding and a hyperlink to the line where it was called.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    warn: function() {},
+
+    /**
+     * APIFunction: error
+     * Writes a message to the console with the visual "error" icon and color
+     * coding and a hyperlink to the line where it was called.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    error: function() {},
+    
+    /**
+     * APIFunction: userError
+     * A single interface for showing error messages to the user. The default
+     * behavior is a Javascript alert, though this can be overridden by
+     * reassigning OpenLayers.Console.userError to a different function.
+     *
+     * Expects a single error message
+     * 
+     * Parameters:
+     * error - {Object}
+     */
+    userError: function(error) {
+        alert(error);
+    },
+
+    /**
+     * APIFunction: assert
+     * Tests that an expression is true. If not, it will write a message to
+     * the console and throw an exception.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    assert: function() {},
+
+    /**
+     * APIFunction: dir
+     * Prints an interactive listing of all properties of the object. This
+     * looks identical to the view that you would see in the DOM tab.
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    dir: function() {},
+
+    /**
+     * APIFunction: dirxml
+     * Prints the XML source tree of an HTML or XML element. This looks
+     * identical to the view that you would see in the HTML tab. You can click
+     * on any node to inspect it in the HTML tab.
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    dirxml: function() {},
+
+    /**
+     * APIFunction: trace
+     * Prints an interactive stack trace of JavaScript execution at the point
+     * where it is called.  The stack trace details the functions on the stack,
+     * as well as the values that were passed as arguments to each function.
+     * You can click each function to take you to its source in the Script tab,
+     * and click each argument value to inspect it in the DOM or HTML tabs.
+     * 
+     */
+    trace: function() {},
+
+    /**
+     * APIFunction: group
+     * Writes a message to the console and opens a nested block to indent all
+     * future messages sent to the console. Call OpenLayers.Console.groupEnd()
+     * to close the block.
+     *
+     * May be called with multiple arguments as with OpenLayers.Console.log().
+     * 
+     * Parameters:
+     * object - {Object}
+     */
+    group: function() {},
+
+    /**
+     * APIFunction: groupEnd
+     * Closes the most recently opened block created by a call to
+     * OpenLayers.Console.group
+     */
+    groupEnd: function() {},
+    
+    /**
+     * APIFunction: time
+     * Creates a new timer under the given name. Call
+     * OpenLayers.Console.timeEnd(name)
+     * with the same name to stop the timer and print the time elapsed.
+     *
+     * Parameters:
+     * name - {String}
+     */
+    time: function() {},
+
+    /**
+     * APIFunction: timeEnd
+     * Stops a timer created by a call to OpenLayers.Console.time(name) and
+     * writes the time elapsed.
+     *
+     * Parameters:
+     * name - {String}
+     */
+    timeEnd: function() {},
+
+    /**
+     * APIFunction: profile
+     * Turns on the JavaScript profiler. The optional argument title would
+     * contain the text to be printed in the header of the profile report.
+     *
+     * This function is not currently implemented in Firebug Lite.
+     * 
+     * Parameters:
+     * title - {String} Optional title for the profiler
+     */
+    profile: function() {},
+
+    /**
+     * APIFunction: profileEnd
+     * Turns off the JavaScript profiler and prints its report.
+     * 
+     * This function is not currently implemented in Firebug Lite.
+     */
+    profileEnd: function() {},
+
+    /**
+     * APIFunction: count
+     * Writes the number of times that the line of code where count was called
+     * was executed. The optional argument title will print a message in
+     * addition to the number of the count.
+     *
+     * This function is not currently implemented in Firebug Lite.
+     *
+     * Parameters:
+     * title - {String} Optional title to be printed with count
+     */
+    count: function() {},
+
+    CLASS_NAME: "OpenLayers.Console"
+};
+
+/**
+ * Execute an anonymous function to extend the OpenLayers.Console namespace
+ * if the firebug.js script is included.  This closure is used so that the
+ * "scripts" and "i" variables don't pollute the global namespace.
+ */
+(function() {
+    /**
+     * If Firebug Lite is included (before this script), re-route all
+     * OpenLayers.Console calls to the console object.
+     */
+    var scripts = document.getElementsByTagName("script");
+    for(var i=0, len=scripts.length; i<len; ++i) {
+        if(scripts[i].src.indexOf("firebug.js") != -1) {
+            if(console) {
+                OpenLayers.Util.extend(OpenLayers.Console, console);
+                break;
+            }
+        }
+    }
+})();
+/* ======================================================================
+    OpenLayers/Lang.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes.js
+ * @requires OpenLayers/Console.js
+ */
+
+/**
+ * Namespace: OpenLayers.Lang
+ * Internationalization namespace.  Contains dictionaries in various languages
+ *     and methods to set and get the current language.
+ */
+OpenLayers.Lang = {
+    
+    /** 
+     * Property: code
+     * {String}  Current language code to use in OpenLayers.  Use the
+     *     <setCode> method to set this value and the <getCode> method to
+     *     retrieve it.
+     */
+    code: null,
+
+    /** 
+     * APIProperty: defaultCode
+     * {String} Default language to use when a specific language can't be
+     *     found.  Default is "en".
+     */
+    defaultCode: "en",
+        
+    /**
+     * APIFunction: getCode
+     * Get the current language code.
+     *
+     * Returns:
+     * {String} The current language code.
+     */
+    getCode: function() {
+        if(!OpenLayers.Lang.code) {
+            OpenLayers.Lang.setCode();
+        }
+        return OpenLayers.Lang.code;
+    },
+    
+    /**
+     * APIFunction: setCode
+     * Set the language code for string translation.  This code is used by
+     *     the <OpenLayers.Lang.translate> method.
+     *
+     * Parameters:
+     * code - {String} These codes follow the IETF recommendations at
+     *     http://www.ietf.org/rfc/rfc3066.txt.  If no value is set, the
+     *     browser's language setting will be tested.  If no <OpenLayers.Lang>
+     *     dictionary exists for the code, the <OpenLayers.String.defaultLang>
+     *     will be used.
+     */
+    setCode: function(code) {
+        var lang;
+        if(!code) {
+            code = (OpenLayers.BROWSER_NAME == "msie") ?
+                navigator.userLanguage : navigator.language;
+        }
+        var parts = code.split('-');
+        parts[0] = parts[0].toLowerCase();
+        if(typeof OpenLayers.Lang[parts[0]] == "object") {
+            lang = parts[0];
+        }
+
+        // check for regional extensions
+        if(parts[1]) {
+            var testLang = parts[0] + '-' + parts[1].toUpperCase();
+            if(typeof OpenLayers.Lang[testLang] == "object") {
+                lang = testLang;
+            }
+        }
+        if(!lang) {
+            OpenLayers.Console.warn(
+                'Failed to find OpenLayers.Lang.' + parts.join("-") +
+                ' dictionary, falling back to default language'
+            );
+            lang = OpenLayers.Lang.defaultCode;
+        }
+        
+        OpenLayers.Lang.code = lang;
+    },
+
+    /**
+     * APIMethod: translate
+     * Looks up a key from a dictionary based on the current language string.
+     *     The value of <getCode> will be used to determine the appropriate
+     *     dictionary.  Dictionaries are stored in <OpenLayers.Lang>.
+     *
+     * Parameters:
+     * key - {String} The key for an i18n string value in the dictionary.
+     * context - {Object} Optional context to be used with
+     *     <OpenLayers.String.format>.
+     * 
+     * Returns:
+     * {String} A internationalized string.
+     */
+    translate: function(key, context) {
+        var dictionary = OpenLayers.Lang[OpenLayers.Lang.getCode()];
+        var message = dictionary && dictionary[key];
+        if(!message) {
+            // Message not found, fall back to message key
+            message = key;
+        }
+        if(context) {
+            message = OpenLayers.String.format(message, context);
+        }
+        return message;
+    }
+    
+};
+
+
+/**
+ * APIMethod: OpenLayers.i18n
+ * Alias for <OpenLayers.Lang.translate>.  Looks up a key from a dictionary
+ *     based on the current language string. The value of
+ *     <OpenLayers.Lang.getCode> will be used to determine the appropriate
+ *     dictionary.  Dictionaries are stored in <OpenLayers.Lang>.
+ *
+ * Parameters:
+ * key - {String} The key for an i18n string value in the dictionary.
+ * context - {Object} Optional context to be used with
+ *     <OpenLayers.String.format>.
+ * 
+ * Returns:
+ * {String} A internationalized string.
+ */
+OpenLayers.i18n = OpenLayers.Lang.translate;
+/* ======================================================================
+    OpenLayers/Util.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes.js
+ * @requires OpenLayers/BaseTypes/Bounds.js
+ * @requires OpenLayers/BaseTypes/Element.js
+ * @requires OpenLayers/BaseTypes/LonLat.js
+ * @requires OpenLayers/BaseTypes/Pixel.js
+ * @requires OpenLayers/BaseTypes/Size.js
+ * @requires OpenLayers/Lang.js
+ */
+
+/**
+ * Namespace: Util
+ */
+OpenLayers.Util = OpenLayers.Util || {};
+
+/** 
+ * Function: getElement
+ * This is the old $() from prototype
+ *
+ * Parameters:
+ * e - {String or DOMElement or Window}
+ *
+ * Returns:
+ * {Array(DOMElement) or DOMElement}
+ */
+OpenLayers.Util.getElement = function() {
+    var elements = [];
+
+    for (var i=0, len=arguments.length; i<len; i++) {
+        var element = arguments[i];
+        if (typeof element == 'string') {
+            element = document.getElementById(element);
+        }
+        if (arguments.length == 1) {
+            return element;
+        }
+        elements.push(element);
+    }
+    return elements;
+};
+
+/**
+ * Function: isElement
+ * A cross-browser implementation of "e instanceof Element".
+ *
+ * Parameters:
+ * o - {Object} The object to test.
+ *
+ * Returns:
+ * {Boolean}
+ */
+OpenLayers.Util.isElement = function(o) {
+    return !!(o && o.nodeType === 1);
+};
+
+/**
+ * Function: isArray
+ * Tests that the provided object is an array.
+ * This test handles the cross-IFRAME case not caught
+ * by "a instanceof Array" and should be used instead.
+ * 
+ * Parameters:
+ * a - {Object} the object test.
+ * 
+ * Returns:
+ * {Boolean} true if the object is an array.
+ */
+OpenLayers.Util.isArray = function(a) {
+    return (Object.prototype.toString.call(a) === '[object Array]');
+};
+
+/** 
+ * Function: removeItem
+ * Remove an object from an array. Iterates through the array
+ *     to find the item, then removes it.
+ *
+ * Parameters:
+ * array - {Array}
+ * item - {Object}
+ * 
+ * Returns:
+ * {Array} A reference to the array
+ */
+OpenLayers.Util.removeItem = function(array, item) {
+    for(var i = array.length - 1; i >= 0; i--) {
+        if(array[i] == item) {
+            array.splice(i,1);
+            //break;more than once??
+        }
+    }
+    return array;
+};
+
+/** 
+ * Function: indexOf
+ * Seems to exist already in FF, but not in MOZ.
+ * 
+ * Parameters:
+ * array - {Array}
+ * obj - {*}
+ * 
+ * Returns:
+ * {Integer} The index at which the first object was found in the array.
+ *           If not found, returns -1.
+ */
+OpenLayers.Util.indexOf = function(array, obj) {
+    // use the build-in function if available.
+    if (typeof array.indexOf == "function") {
+        return array.indexOf(obj);
+    } else {
+        for (var i = 0, len = array.length; i < len; i++) {
+            if (array[i] == obj) {
+                return i;
+            }
+        }
+        return -1;   
+    }
+};
+
+
+/**
+ * Property: dotless
+ * {RegExp}
+ * Compiled regular expression to match dots (".").  This is used for replacing
+ *     dots in identifiers.  Because object identifiers are frequently used for
+ *     DOM element identifiers by the library, we avoid using dots to make for
+ *     more sensible CSS selectors.
+ *
+ * TODO: Use a module pattern to avoid bloating the API with stuff like this.
+ */
+OpenLayers.Util.dotless = /\./g;
+
+/**
+ * Function: modifyDOMElement
+ * 
+ * Modifies many properties of a DOM element all at once.  Passing in 
+ * null to an individual parameter will avoid setting the attribute.
+ *
+ * Parameters:
+ * element - {DOMElement} DOM element to modify.
+ * id - {String} The element id attribute to set.  Note that dots (".") will be
+ *     replaced with underscore ("_") in setting the element id.
+ * px - {<OpenLayers.Pixel>|Object} The element left and top position,
+ *                                  OpenLayers.Pixel or an object with
+ *                                  a 'x' and 'y' properties.
+ * sz - {<OpenLayers.Size>|Object} The element width and height,
+ *                                 OpenLayers.Size or an object with a
+ *                                 'w' and 'h' properties.
+ * position - {String}       The position attribute.  eg: absolute, 
+ *                           relative, etc.
+ * border - {String}         The style.border attribute.  eg:
+ *                           solid black 2px
+ * overflow - {String}       The style.overview attribute.  
+ * opacity - {Float}         Fractional value (0.0 - 1.0)
+ */
+OpenLayers.Util.modifyDOMElement = function(element, id, px, sz, position, 
+                                            border, overflow, opacity) {
+
+    if (id) {
+        element.id = id.replace(OpenLayers.Util.dotless, "_");
+    }
+    if (px) {
+        element.style.left = px.x + "px";
+        element.style.top = px.y + "px";
+    }
+    if (sz) {
+        element.style.width = sz.w + "px";
+        element.style.height = sz.h + "px";
+    }
+    if (position) {
+        element.style.position = position;
+    }
+    if (border) {
+        element.style.border = border;
+    }
+    if (overflow) {
+        element.style.overflow = overflow;
+    }
+    if (parseFloat(opacity) >= 0.0 && parseFloat(opacity) < 1.0) {
+        element.style.filter = 'alpha(opacity=' + (opacity * 100) + ')';
+        element.style.opacity = opacity;
+    } else if (parseFloat(opacity) == 1.0) {
+        element.style.filter = '';
+        element.style.opacity = '';
+    }
+};
+
+/** 
+ * Function: createDiv
+ * Creates a new div and optionally set some standard attributes.
+ * Null may be passed to each parameter if you do not wish to
+ * set a particular attribute.
+ * Note - zIndex is NOT set on the resulting div.
+ * 
+ * Parameters:
+ * id - {String} An identifier for this element.  If no id is
+ *               passed an identifier will be created 
+ *               automatically.  Note that dots (".") will be replaced with
+ *               underscore ("_") when generating ids.
+ * px - {<OpenLayers.Pixel>|Object} The element left and top position,
+ *                                  OpenLayers.Pixel or an object with
+ *                                  a 'x' and 'y' properties.
+ * sz - {<OpenLayers.Size>|Object} The element width and height,
+ *                                 OpenLayers.Size or an object with a
+ *                                 'w' and 'h' properties.
+ * imgURL - {String} A url pointing to an image to use as a 
+ *                   background image.
+ * position - {String} The style.position value. eg: absolute,
+ *                     relative etc.
+ * border - {String} The the style.border value. 
+ *                   eg: 2px solid black
+ * overflow - {String} The style.overflow value. Eg. hidden
+ * opacity - {Float} Fractional value (0.0 - 1.0)
+ * 
+ * Returns: 
+ * {DOMElement} A DOM Div created with the specified attributes.
+ */
+OpenLayers.Util.createDiv = function(id, px, sz, imgURL, position, 
+                                     border, overflow, opacity) {
+
+    var dom = document.createElement('div');
+
+    if (imgURL) {
+        dom.style.backgroundImage = 'url(' + imgURL + ')';
+    }
+
+    //set generic properties
+    if (!id) {
+        id = OpenLayers.Util.createUniqueID("OpenLayersDiv");
+    }
+    if (!position) {
+        position = "absolute";
+    }
+    OpenLayers.Util.modifyDOMElement(dom, id, px, sz, position, 
+                                     border, overflow, opacity);
+
+    return dom;
+};
+
+/**
+ * Function: createImage
+ * Creates an img element with specific attribute values.
+ *  
+ * Parameters:
+ * id - {String} The id field for the img.  If none assigned one will be
+ *               automatically generated.
+ * px - {<OpenLayers.Pixel>|Object} The element left and top position,
+ *                                  OpenLayers.Pixel or an object with
+ *                                  a 'x' and 'y' properties.
+ * sz - {<OpenLayers.Size>|Object} The element width and height,
+ *                                 OpenLayers.Size or an object with a
+ *                                 'w' and 'h' properties.
+ * imgURL - {String} The url to use as the image source.
+ * position - {String} The style.position value.
+ * border - {String} The border to place around the image.
+ * opacity - {Float} Fractional value (0.0 - 1.0)
+ * delayDisplay - {Boolean} If true waits until the image has been
+ *                          loaded.
+ * 
+ * Returns:
+ * {DOMElement} A DOM Image created with the specified attributes.
+ */
+OpenLayers.Util.createImage = function(id, px, sz, imgURL, position, border,
+                                       opacity, delayDisplay) {
+
+    var image = document.createElement("img");
+
+    //set generic properties
+    if (!id) {
+        id = OpenLayers.Util.createUniqueID("OpenLayersDiv");
+    }
+    if (!position) {
+        position = "relative";
+    }
+    OpenLayers.Util.modifyDOMElement(image, id, px, sz, position, 
+                                     border, null, opacity);
+
+    if (delayDisplay) {
+        image.style.display = "none";
+        function display() {
+            image.style.display = "";
+            OpenLayers.Event.stopObservingElement(image);
+        }
+        OpenLayers.Event.observe(image, "load", display);
+        OpenLayers.Event.observe(image, "error", display);
+    }
+    
+    //set special properties
+    image.style.alt = id;
+    image.galleryImg = "no";
+    if (imgURL) {
+        image.src = imgURL;
+    }
+        
+    return image;
+};
+
+/**
+ * Property: IMAGE_RELOAD_ATTEMPTS
+ * {Integer} How many times should we try to reload an image before giving up?
+ *           Default is 0
+ */
+OpenLayers.IMAGE_RELOAD_ATTEMPTS = 0;
+
+/**
+ * Property: alphaHackNeeded
+ * {Boolean} true if the png alpha hack is necessary and possible, false otherwise.
+ */
+OpenLayers.Util.alphaHackNeeded = null;
+
+/**
+ * Function: alphaHack
+ * Checks whether it's necessary (and possible) to use the png alpha
+ * hack which allows alpha transparency for png images under Internet
+ * Explorer.
+ * 
+ * Returns:
+ * {Boolean} true if the png alpha hack is necessary and possible, false otherwise.
+ */
+OpenLayers.Util.alphaHack = function() {
+    if (OpenLayers.Util.alphaHackNeeded == null) {
+        var arVersion = navigator.appVersion.split("MSIE");
+        var version = parseFloat(arVersion[1]);
+        var filter = false;
+    
+        // IEs4Lin dies when trying to access document.body.filters, because 
+        // the property is there, but requires a DLL that can't be provided. This
+        // means that we need to wrap this in a try/catch so that this can
+        // continue.
+    
+        try { 
+            filter = !!(document.body.filters);
+        } catch (e) {}    
+    
+        OpenLayers.Util.alphaHackNeeded = (filter && 
+                                           (version >= 5.5) && (version < 7));
+    }
+    return OpenLayers.Util.alphaHackNeeded;
+};
+
+/** 
+ * Function: modifyAlphaImageDiv
+ * 
+ * Parameters:
+ * div - {DOMElement} Div containing Alpha-adjusted Image
+ * id - {String}
+ * px - {<OpenLayers.Pixel>|Object} OpenLayers.Pixel or an object with
+ *                                  a 'x' and 'y' properties.
+ * sz - {<OpenLayers.Size>|Object} OpenLayers.Size or an object with
+ *                                 a 'w' and 'h' properties.
+ * imgURL - {String}
+ * position - {String}
+ * border - {String}
+ * sizing - {String} 'crop', 'scale', or 'image'. Default is "scale"
+ * opacity - {Float} Fractional value (0.0 - 1.0)
+ */ 
+OpenLayers.Util.modifyAlphaImageDiv = function(div, id, px, sz, imgURL, 
+                                               position, border, sizing, 
+                                               opacity) {
+
+    OpenLayers.Util.modifyDOMElement(div, id, px, sz, position,
+                                     null, null, opacity);
+
+    var img = div.childNodes[0];
+
+    if (imgURL) {
+        img.src = imgURL;
+    }
+    OpenLayers.Util.modifyDOMElement(img, div.id + "_innerImage", null, sz, 
+                                     "relative", border);
+    
+    if (OpenLayers.Util.alphaHack()) {
+        if(div.style.display != "none") {
+            div.style.display = "inline-block";
+        }
+        if (sizing == null) {
+            sizing = "scale";
+        }
+        
+        div.style.filter = "progid:DXImageTransform.Microsoft" +
+                           ".AlphaImageLoader(src='" + img.src + "', " +
+                           "sizingMethod='" + sizing + "')";
+        if (parseFloat(div.style.opacity) >= 0.0 && 
+            parseFloat(div.style.opacity) < 1.0) {
+            div.style.filter += " alpha(opacity=" + div.style.opacity * 100 + ")";
+        }
+
+        img.style.filter = "alpha(opacity=0)";
+    }
+};
+
+/** 
+ * Function: createAlphaImageDiv
+ * 
+ * Parameters:
+ * id - {String}
+ * px - {<OpenLayers.Pixel>|Object} OpenLayers.Pixel or an object with
+ *                                  a 'x' and 'y' properties.
+ * sz - {<OpenLayers.Size>|Object} OpenLayers.Size or an object with
+ *                                 a 'w' and 'h' properties.
+ * imgURL - {String}
+ * position - {String}
+ * border - {String}
+ * sizing - {String} 'crop', 'scale', or 'image'. Default is "scale"
+ * opacity - {Float} Fractional value (0.0 - 1.0)
+ * delayDisplay - {Boolean} If true waits until the image has been
+ *                          loaded.
+ * 
+ * Returns:
+ * {DOMElement} A DOM Div created with a DOM Image inside it. If the hack is 
+ *              needed for transparency in IE, it is added.
+ */ 
+OpenLayers.Util.createAlphaImageDiv = function(id, px, sz, imgURL, 
+                                               position, border, sizing, 
+                                               opacity, delayDisplay) {
+    
+    var div = OpenLayers.Util.createDiv();
+    var img = OpenLayers.Util.createImage(null, null, null, null, null, null, 
+                                          null, delayDisplay);
+    img.className = "olAlphaImg";
+    div.appendChild(img);
+
+    OpenLayers.Util.modifyAlphaImageDiv(div, id, px, sz, imgURL, position, 
+                                        border, sizing, opacity);
+    
+    return div;
+};
+
+
+/** 
+ * Function: upperCaseObject
+ * Creates a new hashtable and copies over all the keys from the 
+ *     passed-in object, but storing them under an uppercased
+ *     version of the key at which they were stored.
+ * 
+ * Parameters: 
+ * object - {Object}
+ * 
+ * Returns: 
+ * {Object} A new Object with all the same keys but uppercased
+ */
+OpenLayers.Util.upperCaseObject = function (object) {
+    var uObject = {};
+    for (var key in object) {
+        uObject[key.toUpperCase()] = object[key];
+    }
+    return uObject;
+};
+
+/** 
+ * Function: applyDefaults
+ * Takes an object and copies any properties that don't exist from
+ *     another properties, by analogy with OpenLayers.Util.extend() from
+ *     Prototype.js.
+ * 
+ * Parameters:
+ * to - {Object} The destination object.
+ * from - {Object} The source object.  Any properties of this object that
+ *     are undefined in the to object will be set on the to object.
+ *
+ * Returns:
+ * {Object} A reference to the to object.  Note that the to argument is modified
+ *     in place and returned by this function.
+ */
+OpenLayers.Util.applyDefaults = function (to, from) {
+    to = to || {};
+    /*
+     * FF/Windows < 2.0.0.13 reports "Illegal operation on WrappedNative
+     * prototype object" when calling hawOwnProperty if the source object is an
+     * instance of window.Event.
+     */
+    var fromIsEvt = typeof window.Event == "function"
+                    && from instanceof window.Event;
+
+    for (var key in from) {
+        if (to[key] === undefined ||
+            (!fromIsEvt && from.hasOwnProperty
+             && from.hasOwnProperty(key) && !to.hasOwnProperty(key))) {
+            to[key] = from[key];
+        }
+    }
+    /**
+     * IE doesn't include the toString property when iterating over an object's
+     * properties with the for(property in object) syntax.  Explicitly check if
+     * the source has its own toString property.
+     */
+    if(!fromIsEvt && from && from.hasOwnProperty
+       && from.hasOwnProperty('toString') && !to.hasOwnProperty('toString')) {
+        to.toString = from.toString;
+    }
+    
+    return to;
+};
+
+/**
+ * Function: getParameterString
+ * 
+ * Parameters:
+ * params - {Object}
+ * 
+ * Returns:
+ * {String} A concatenation of the properties of an object in 
+ *          http parameter notation. 
+ *          (ex. <i>"key1=value1&key2=value2&key3=value3"</i>)
+ *          If a parameter is actually a list, that parameter will then
+ *          be set to a comma-seperated list of values (foo,bar) instead
+ *          of being URL escaped (foo%3Abar). 
+ */
+OpenLayers.Util.getParameterString = function(params) {
+    var paramsArray = [];
+    
+    for (var key in params) {
+      var value = params[key];
+      if ((value != null) && (typeof value != 'function')) {
+        var encodedValue;
+        if (typeof value == 'object' && value.constructor == Array) {
+          /* value is an array; encode items and separate with "," */
+          var encodedItemArray = [];
+          var item;
+          for (var itemIndex=0, len=value.length; itemIndex<len; itemIndex++) {
+            item = value[itemIndex];
+            encodedItemArray.push(encodeURIComponent(
+                (item === null || item === undefined) ? "" : item)
+            );
+          }
+          encodedValue = encodedItemArray.join(",");
+        }
+        else {
+          /* value is a string; simply encode */
+          encodedValue = encodeURIComponent(value);
+        }
+        paramsArray.push(encodeURIComponent(key) + "=" + encodedValue);
+      }
+    }
+    
+    return paramsArray.join("&");
+};
+
+/**
+ * Function: urlAppend
+ * Appends a parameter string to a url. This function includes the logic for
+ * using the appropriate character (none, & or ?) to append to the url before
+ * appending the param string.
+ * 
+ * Parameters:
+ * url - {String} The url to append to
+ * paramStr - {String} The param string to append
+ * 
+ * Returns:
+ * {String} The new url
+ */
+OpenLayers.Util.urlAppend = function(url, paramStr) {
+    var newUrl = url;
+    if(paramStr) {
+        var parts = (url + " ").split(/[?&]/);
+        newUrl += (parts.pop() === " " ?
+            paramStr :
+            parts.length ? "&" + paramStr : "?" + paramStr);
+    }
+    return newUrl;
+};
+
+/** 
+ * Function: getImagesLocation
+ * 
+ * Returns:
+ * {String} The fully formatted image location string
+ */
+OpenLayers.Util.getImagesLocation = function() {
+    return OpenLayers.ImgPath || (OpenLayers._getScriptLocation() + "img/");
+};
+
+/** 
+ * Function: getImageLocation
+ * 
+ * Returns:
+ * {String} The fully formatted location string for a specified image
+ */
+OpenLayers.Util.getImageLocation = function(image) {
+    return OpenLayers.Util.getImagesLocation() + image;
+};
+
+
+/** 
+ * Function: Try
+ * Execute functions until one of them doesn't throw an error. 
+ *     Capitalized because "try" is a reserved word in JavaScript.
+ *     Taken directly from OpenLayers.Util.Try()
+ * 
+ * Parameters:
+ * [*] - {Function} Any number of parameters may be passed to Try()
+ *    It will attempt to execute each of them until one of them 
+ *    successfully executes. 
+ *    If none executes successfully, returns null.
+ * 
+ * Returns:
+ * {*} The value returned by the first successfully executed function.
+ */
+OpenLayers.Util.Try = function() {
+    var returnValue = null;
+
+    for (var i=0, len=arguments.length; i<len; i++) {
+      var lambda = arguments[i];
+      try {
+        returnValue = lambda();
+        break;
+      } catch (e) {}
+    }
+
+    return returnValue;
+};
+
+/**
+ * Function: getXmlNodeValue
+ * 
+ * Parameters:
+ * node - {XMLNode}
+ * 
+ * Returns:
+ * {String} The text value of the given node, without breaking in firefox or IE
+ */
+OpenLayers.Util.getXmlNodeValue = function(node) {
+    var val = null;
+    OpenLayers.Util.Try( 
+        function() {
+            val = node.text;
+            if (!val) {
+                val = node.textContent;
+            }
+            if (!val) {
+                val = node.firstChild.nodeValue;
+            }
+        }, 
+        function() {
+            val = node.textContent;
+        }); 
+    return val;
+};
+
+/** 
+ * Function: mouseLeft
+ * 
+ * Parameters:
+ * evt - {Event}
+ * div - {HTMLDivElement}
+ * 
+ * Returns:
+ * {Boolean}
+ */
+OpenLayers.Util.mouseLeft = function (evt, div) {
+    // start with the element to which the mouse has moved
+    var target = (evt.relatedTarget) ? evt.relatedTarget : evt.toElement;
+    // walk up the DOM tree.
+    while (target != div && target != null) {
+        target = target.parentNode;
+    }
+    // if the target we stop at isn't the div, then we've left the div.
+    return (target != div);
+};
+
+/**
+ * Property: precision
+ * {Number} The number of significant digits to retain to avoid
+ * floating point precision errors.
+ *
+ * We use 14 as a "safe" default because, although IEEE 754 double floats
+ * (standard on most modern operating systems) support up to about 16
+ * significant digits, 14 significant digits are sufficient to represent
+ * sub-millimeter accuracy in any coordinate system that anyone is likely to
+ * use with OpenLayers.
+ *
+ * If DEFAULT_PRECISION is set to 0, the original non-truncating behavior
+ * of OpenLayers <2.8 is preserved. Be aware that this will cause problems
+ * with certain projections, e.g. spherical Mercator.
+ *
+ */
+OpenLayers.Util.DEFAULT_PRECISION = 14;
+
+/**
+ * Function: toFloat
+ * Convenience method to cast an object to a Number, rounded to the
+ * desired floating point precision.
+ *
+ * Parameters:
+ * number    - {Number} The number to cast and round.
+ * precision - {Number} An integer suitable for use with
+ *      Number.toPrecision(). Defaults to OpenLayers.Util.DEFAULT_PRECISION.
+ *      If set to 0, no rounding is performed.
+ *
+ * Returns:
+ * {Number} The cast, rounded number.
+ */
+OpenLayers.Util.toFloat = function (number, precision) {
+    if (precision == null) {
+        precision = OpenLayers.Util.DEFAULT_PRECISION;
+    }
+    if (typeof number !== "number") {
+        number = parseFloat(number);
+    }
+    return precision === 0 ? number :
+                             parseFloat(number.toPrecision(precision));
+};
+
+/**
+ * Function: rad
+ * 
+ * Parameters:
+ * x - {Float}
+ * 
+ * Returns:
+ * {Float}
+ */
+OpenLayers.Util.rad = function(x) {return x*Math.PI/180;};
+
+/**
+ * Function: deg
+ *
+ * Parameters:
+ * x - {Float}
+ *
+ * Returns:
+ * {Float}
+ */
+OpenLayers.Util.deg = function(x) {return x*180/Math.PI;};
+
+/**
+ * Property: VincentyConstants
+ * {Object} Constants for Vincenty functions.
+ */
+OpenLayers.Util.VincentyConstants = {
+    a: 6378137,
+    b: 6356752.3142,
+    f: 1/298.257223563
+};
+
+/**
+ * APIFunction: distVincenty
+ * Given two objects representing points with geographic coordinates, this
+ *     calculates the distance between those points on the surface of an
+ *     ellipsoid.
+ *
+ * Parameters:
+ * p1 - {<OpenLayers.LonLat>} (or any object with both .lat, .lon properties)
+ * p2 - {<OpenLayers.LonLat>} (or any object with both .lat, .lon properties)
+ *
+ * Returns:
+ * {Float} The distance (in km) between the two input points as measured on an
+ *     ellipsoid.  Note that the input point objects must be in geographic
+ *     coordinates (decimal degrees) and the return distance is in kilometers.
+ */
+OpenLayers.Util.distVincenty = function(p1, p2) {
+    var ct = OpenLayers.Util.VincentyConstants;
+    var a = ct.a, b = ct.b, f = ct.f;
+
+    var L = OpenLayers.Util.rad(p2.lon - p1.lon);
+    var U1 = Math.atan((1-f) * Math.tan(OpenLayers.Util.rad(p1.lat)));
+    var U2 = Math.atan((1-f) * Math.tan(OpenLayers.Util.rad(p2.lat)));
+    var sinU1 = Math.sin(U1), cosU1 = Math.cos(U1);
+    var sinU2 = Math.sin(U2), cosU2 = Math.cos(U2);
+    var lambda = L, lambdaP = 2*Math.PI;
+    var iterLimit = 20;
+    while (Math.abs(lambda-lambdaP) > 1e-12 && --iterLimit>0) {
+        var sinLambda = Math.sin(lambda), cosLambda = Math.cos(lambda);
+        var sinSigma = Math.sqrt((cosU2*sinLambda) * (cosU2*sinLambda) +
+        (cosU1*sinU2-sinU1*cosU2*cosLambda) * (cosU1*sinU2-sinU1*cosU2*cosLambda));
+        if (sinSigma==0) {
+            return 0;  // co-incident points
+        }
+        var cosSigma = sinU1*sinU2 + cosU1*cosU2*cosLambda;
+        var sigma = Math.atan2(sinSigma, cosSigma);
+        var alpha = Math.asin(cosU1 * cosU2 * sinLambda / sinSigma);
+        var cosSqAlpha = Math.cos(alpha) * Math.cos(alpha);
+        var cos2SigmaM = cosSigma - 2*sinU1*sinU2/cosSqAlpha;
+        var C = f/16*cosSqAlpha*(4+f*(4-3*cosSqAlpha));
+        lambdaP = lambda;
+        lambda = L + (1-C) * f * Math.sin(alpha) *
+        (sigma + C*sinSigma*(cos2SigmaM+C*cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)));
+    }
+    if (iterLimit==0) {
+        return NaN;  // formula failed to converge
+    }
+    var uSq = cosSqAlpha * (a*a - b*b) / (b*b);
+    var A = 1 + uSq/16384*(4096+uSq*(-768+uSq*(320-175*uSq)));
+    var B = uSq/1024 * (256+uSq*(-128+uSq*(74-47*uSq)));
+    var deltaSigma = B*sinSigma*(cos2SigmaM+B/4*(cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)-
+        B/6*cos2SigmaM*(-3+4*sinSigma*sinSigma)*(-3+4*cos2SigmaM*cos2SigmaM)));
+    var s = b*A*(sigma-deltaSigma);
+    var d = s.toFixed(3)/1000; // round to 1mm precision
+    return d;
+};
+
+/**
+ * APIFunction: destinationVincenty
+ * Calculate destination point given start point lat/long (numeric degrees),
+ * bearing (numeric degrees) & distance (in m).
+ * Adapted from Chris Veness work, see
+ * http://www.movable-type.co.uk/scripts/latlong-vincenty-direct.html
+ *
+ * Parameters:
+ * lonlat  - {<OpenLayers.LonLat>} (or any object with both .lat, .lon
+ *     properties) The start point.
+ * brng     - {Float} The bearing (degrees).
+ * dist     - {Float} The ground distance (meters).
+ *
+ * Returns:
+ * {<OpenLayers.LonLat>} The destination point.
+ */
+OpenLayers.Util.destinationVincenty = function(lonlat, brng, dist) {
+    var u = OpenLayers.Util;
+    var ct = u.VincentyConstants;
+    var a = ct.a, b = ct.b, f = ct.f;
+
+    var lon1 = lonlat.lon;
+    var lat1 = lonlat.lat;
+
+    var s = dist;
+    var alpha1 = u.rad(brng);
+    var sinAlpha1 = Math.sin(alpha1);
+    var cosAlpha1 = Math.cos(alpha1);
+
+    var tanU1 = (1-f) * Math.tan(u.rad(lat1));
+    var cosU1 = 1 / Math.sqrt((1 + tanU1*tanU1)), sinU1 = tanU1*cosU1;
+    var sigma1 = Math.atan2(tanU1, cosAlpha1);
+    var sinAlpha = cosU1 * sinAlpha1;
+    var cosSqAlpha = 1 - sinAlpha*sinAlpha;
+    var uSq = cosSqAlpha * (a*a - b*b) / (b*b);
+    var A = 1 + uSq/16384*(4096+uSq*(-768+uSq*(320-175*uSq)));
+    var B = uSq/1024 * (256+uSq*(-128+uSq*(74-47*uSq)));
+
+    var sigma = s / (b*A), sigmaP = 2*Math.PI;
+    while (Math.abs(sigma-sigmaP) > 1e-12) {
+        var cos2SigmaM = Math.cos(2*sigma1 + sigma);
+        var sinSigma = Math.sin(sigma);
+        var cosSigma = Math.cos(sigma);
+        var deltaSigma = B*sinSigma*(cos2SigmaM+B/4*(cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)-
+            B/6*cos2SigmaM*(-3+4*sinSigma*sinSigma)*(-3+4*cos2SigmaM*cos2SigmaM)));
+        sigmaP = sigma;
+        sigma = s / (b*A) + deltaSigma;
+    }
+
+    var tmp = sinU1*sinSigma - cosU1*cosSigma*cosAlpha1;
+    var lat2 = Math.atan2(sinU1*cosSigma + cosU1*sinSigma*cosAlpha1,
+        (1-f)*Math.sqrt(sinAlpha*sinAlpha + tmp*tmp));
+    var lambda = Math.atan2(sinSigma*sinAlpha1, cosU1*cosSigma - sinU1*sinSigma*cosAlpha1);
+    var C = f/16*cosSqAlpha*(4+f*(4-3*cosSqAlpha));
+    var L = lambda - (1-C) * f * sinAlpha *
+        (sigma + C*sinSigma*(cos2SigmaM+C*cosSigma*(-1+2*cos2SigmaM*cos2SigmaM)));
+
+    var revAz = Math.atan2(sinAlpha, -tmp);  // final bearing
+
+    return new OpenLayers.LonLat(lon1+u.deg(L), u.deg(lat2));
+};
+
+/**
+ * Function: getParameters
+ * Parse the parameters from a URL or from the current page itself into a 
+ *     JavaScript Object. Note that parameter values with commas are separated
+ *     out into an Array.
+ * 
+ * Parameters:
+ * url - {String} Optional url used to extract the query string.
+ *                If url is null or is not supplied, query string is taken 
+ *                from the page location.
+ * options - {Object} Additional options. Optional.
+ *
+ * Valid options:
+ *   splitArgs - {Boolean} Split comma delimited params into arrays? Default is
+ *       true.
+ * 
+ * Returns:
+ * {Object} An object of key/value pairs from the query string.
+ */
+OpenLayers.Util.getParameters = function(url, options) {
+    options = options || {};
+    // if no url specified, take it from the location bar
+    url = (url === null || url === undefined) ? window.location.href : url;
+
+    //parse out parameters portion of url string
+    var paramsString = "";
+    if (OpenLayers.String.contains(url, '?')) {
+        var start = url.indexOf('?') + 1;
+        var end = OpenLayers.String.contains(url, "#") ?
+                    url.indexOf('#') : url.length;
+        paramsString = url.substring(start, end);
+    }
+
+    var parameters = {};
+    var pairs = paramsString.split(/[&;]/);
+    for(var i=0, len=pairs.length; i<len; ++i) {
+        var keyValue = pairs[i].split('=');
+        if (keyValue[0]) {
+
+            var key = keyValue[0];
+            try {
+                key = decodeURIComponent(key);
+            } catch (err) {
+                key = unescape(key);
+            }
+            
+            // being liberal by replacing "+" with " "
+            var value = (keyValue[1] || '').replace(/\+/g, " ");
+
+            try {
+                value = decodeURIComponent(value);
+            } catch (err) {
+                value = unescape(value);
+            }
+            
+            // follow OGC convention of comma delimited values
+            if (options.splitArgs !== false) {
+                value = value.split(",");
+            }
+
+            //if there's only one value, do not return as array                    
+            if (value.length == 1) {
+                value = value[0];
+            }                
+            
+            parameters[key] = value;
+         }
+     }
+    return parameters;
+};
+
+/**
+ * Property: lastSeqID
+ * {Integer} The ever-incrementing count variable.
+ *           Used for generating unique ids.
+ */
+OpenLayers.Util.lastSeqID = 0;
+
+/**
+ * Function: createUniqueID
+ * Create a unique identifier for this session.  Each time this function
+ *     is called, a counter is incremented.  The return will be the optional
+ *     prefix (defaults to "id_") appended with the counter value.
+ * 
+ * Parameters:
+ * prefix - {String} Optional string to prefix unique id. Default is "id_".
+ *     Note that dots (".") in the prefix will be replaced with underscore ("_").
+ * 
+ * Returns:
+ * {String} A unique id string, built on the passed in prefix.
+ */
+OpenLayers.Util.createUniqueID = function(prefix) {
+    if (prefix == null) {
+        prefix = "id_";
+    } else {
+        prefix = prefix.replace(OpenLayers.Util.dotless, "_");
+    }
+    OpenLayers.Util.lastSeqID += 1; 
+    return prefix + OpenLayers.Util.lastSeqID;        
+};
+
+/**
+ * Constant: INCHES_PER_UNIT
+ * {Object} Constant inches per unit -- borrowed from MapServer mapscale.c
+ * derivation of nautical miles from http://en.wikipedia.org/wiki/Nautical_mile
+ * Includes the full set of units supported by CS-MAP (http://trac.osgeo.org/csmap/)
+ * and PROJ.4 (http://trac.osgeo.org/proj/)
+ * The hardcoded table is maintain in a CS-MAP source code module named CSdataU.c
+ * The hardcoded table of PROJ.4 units are in pj_units.c.
+ */
+OpenLayers.INCHES_PER_UNIT = { 
+    'inches': 1.0,
+    'ft': 12.0,
+    'mi': 63360.0,
+    'm': 39.37,
+    'km': 39370,
+    'dd': 4374754,
+    'yd': 36
+};
+OpenLayers.INCHES_PER_UNIT["in"]= OpenLayers.INCHES_PER_UNIT.inches;
+OpenLayers.INCHES_PER_UNIT["degrees"] = OpenLayers.INCHES_PER_UNIT.dd;
+OpenLayers.INCHES_PER_UNIT["nmi"] = 1852 * OpenLayers.INCHES_PER_UNIT.m;
+
+// Units from CS-Map
+OpenLayers.METERS_PER_INCH = 0.02540005080010160020;
+OpenLayers.Util.extend(OpenLayers.INCHES_PER_UNIT, {
+    "Inch": OpenLayers.INCHES_PER_UNIT.inches,
+    "Meter": 1.0 / OpenLayers.METERS_PER_INCH,   //EPSG:9001
+    "Foot": 0.30480060960121920243 / OpenLayers.METERS_PER_INCH,   //EPSG:9003
+    "IFoot": 0.30480000000000000000 / OpenLayers.METERS_PER_INCH,   //EPSG:9002
+    "ClarkeFoot": 0.3047972651151 / OpenLayers.METERS_PER_INCH,   //EPSG:9005
+    "SearsFoot": 0.30479947153867624624 / OpenLayers.METERS_PER_INCH,   //EPSG:9041
+    "GoldCoastFoot": 0.30479971018150881758 / OpenLayers.METERS_PER_INCH,   //EPSG:9094
+    "IInch": 0.02540000000000000000 / OpenLayers.METERS_PER_INCH,
+    "MicroInch": 0.00002540000000000000 / OpenLayers.METERS_PER_INCH,
+    "Mil": 0.00000002540000000000 / OpenLayers.METERS_PER_INCH,
+    "Centimeter": 0.01000000000000000000 / OpenLayers.METERS_PER_INCH,
+    "Kilometer": 1000.00000000000000000000 / OpenLayers.METERS_PER_INCH,   //EPSG:9036
+    "Yard": 0.91440182880365760731 / OpenLayers.METERS_PER_INCH,
+    "SearsYard": 0.914398414616029 / OpenLayers.METERS_PER_INCH,   //EPSG:9040
+    "IndianYard": 0.91439853074444079983 / OpenLayers.METERS_PER_INCH,   //EPSG:9084
+    "IndianYd37": 0.91439523 / OpenLayers.METERS_PER_INCH,   //EPSG:9085
+    "IndianYd62": 0.9143988 / OpenLayers.METERS_PER_INCH,   //EPSG:9086
+    "IndianYd75": 0.9143985 / OpenLayers.METERS_PER_INCH,   //EPSG:9087
+    "IndianFoot": 0.30479951 / OpenLayers.METERS_PER_INCH,   //EPSG:9080
+    "IndianFt37": 0.30479841 / OpenLayers.METERS_PER_INCH,   //EPSG:9081
+    "IndianFt62": 0.3047996 / OpenLayers.METERS_PER_INCH,   //EPSG:9082
+    "IndianFt75": 0.3047995 / OpenLayers.METERS_PER_INCH,   //EPSG:9083
+    "Mile": 1609.34721869443738887477 / OpenLayers.METERS_PER_INCH,
+    "IYard": 0.91440000000000000000 / OpenLayers.METERS_PER_INCH,   //EPSG:9096
+    "IMile": 1609.34400000000000000000 / OpenLayers.METERS_PER_INCH,   //EPSG:9093
+    "NautM": 1852.00000000000000000000 / OpenLayers.METERS_PER_INCH,   //EPSG:9030
+    "Lat-66": 110943.316488932731 / OpenLayers.METERS_PER_INCH,
+    "Lat-83": 110946.25736872234125 / OpenLayers.METERS_PER_INCH,
+    "Decimeter": 0.10000000000000000000 / OpenLayers.METERS_PER_INCH,
+    "Millimeter": 0.00100000000000000000 / OpenLayers.METERS_PER_INCH,
+    "Dekameter": 10.00000000000000000000 / OpenLayers.METERS_PER_INCH,
+    "Decameter": 10.00000000000000000000 / OpenLayers.METERS_PER_INCH,
+    "Hectometer": 100.00000000000000000000 / OpenLayers.METERS_PER_INCH,
+    "GermanMeter": 1.0000135965 / OpenLayers.METERS_PER_INCH,   //EPSG:9031
+    "CaGrid": 0.999738 / OpenLayers.METERS_PER_INCH,
+    "ClarkeChain": 20.1166194976 / OpenLayers.METERS_PER_INCH,   //EPSG:9038
+    "GunterChain": 20.11684023368047 / OpenLayers.METERS_PER_INCH,   //EPSG:9033
+    "BenoitChain": 20.116782494375872 / OpenLayers.METERS_PER_INCH,   //EPSG:9062
+    "SearsChain": 20.11676512155 / OpenLayers.METERS_PER_INCH,   //EPSG:9042
+    "ClarkeLink": 0.201166194976 / OpenLayers.METERS_PER_INCH,   //EPSG:9039
+    "GunterLink": 0.2011684023368047 / OpenLayers.METERS_PER_INCH,   //EPSG:9034
+    "BenoitLink": 0.20116782494375872 / OpenLayers.METERS_PER_INCH,   //EPSG:9063
+    "SearsLink": 0.2011676512155 / OpenLayers.METERS_PER_INCH,   //EPSG:9043
+    "Rod": 5.02921005842012 / OpenLayers.METERS_PER_INCH,
+    "IntnlChain": 20.1168 / OpenLayers.METERS_PER_INCH,   //EPSG:9097
+    "IntnlLink": 0.201168 / OpenLayers.METERS_PER_INCH,   //EPSG:9098
+    "Perch": 5.02921005842012 / OpenLayers.METERS_PER_INCH,
+    "Pole": 5.02921005842012 / OpenLayers.METERS_PER_INCH,
+    "Furlong": 201.1684023368046 / OpenLayers.METERS_PER_INCH,
+    "Rood": 3.778266898 / OpenLayers.METERS_PER_INCH,
+    "CapeFoot": 0.3047972615 / OpenLayers.METERS_PER_INCH,
+    "Brealey": 375.00000000000000000000 / OpenLayers.METERS_PER_INCH,
+    "ModAmFt": 0.304812252984505969011938 / OpenLayers.METERS_PER_INCH,
+    "Fathom": 1.8288 / OpenLayers.METERS_PER_INCH,
+    "NautM-UK": 1853.184 / OpenLayers.METERS_PER_INCH,
+    "50kilometers": 50000.0 / OpenLayers.METERS_PER_INCH,
+    "150kilometers": 150000.0 / OpenLayers.METERS_PER_INCH
+});
+
+//unit abbreviations supported by PROJ.4
+OpenLayers.Util.extend(OpenLayers.INCHES_PER_UNIT, {
+    "mm": OpenLayers.INCHES_PER_UNIT["Meter"] / 1000.0,
+    "cm": OpenLayers.INCHES_PER_UNIT["Meter"] / 100.0,
+    "dm": OpenLayers.INCHES_PER_UNIT["Meter"] * 100.0,
+    "km": OpenLayers.INCHES_PER_UNIT["Meter"] * 1000.0,
+    "kmi": OpenLayers.INCHES_PER_UNIT["nmi"],    //International Nautical Mile
+    "fath": OpenLayers.INCHES_PER_UNIT["Fathom"], //International Fathom
+    "ch": OpenLayers.INCHES_PER_UNIT["IntnlChain"],  //International Chain
+    "link": OpenLayers.INCHES_PER_UNIT["IntnlLink"], //International Link
+    "us-in": OpenLayers.INCHES_PER_UNIT["inches"], //U.S. Surveyor's Inch
+    "us-ft": OpenLayers.INCHES_PER_UNIT["Foot"], //U.S. Surveyor's Foot
+    "us-yd": OpenLayers.INCHES_PER_UNIT["Yard"], //U.S. Surveyor's Yard
+    "us-ch": OpenLayers.INCHES_PER_UNIT["GunterChain"], //U.S. Surveyor's Chain
+    "us-mi": OpenLayers.INCHES_PER_UNIT["Mile"],   //U.S. Surveyor's Statute Mile
+    "ind-yd": OpenLayers.INCHES_PER_UNIT["IndianYd37"],  //Indian Yard
+    "ind-ft": OpenLayers.INCHES_PER_UNIT["IndianFt37"],  //Indian Foot
+    "ind-ch": 20.11669506 / OpenLayers.METERS_PER_INCH  //Indian Chain
+});
+
+/** 
+ * Constant: DOTS_PER_INCH
+ * {Integer} 72 (A sensible default)
+ */
+OpenLayers.DOTS_PER_INCH = 72;
+
+/**
+ * Function: normalizeScale
+ * 
+ * Parameters:
+ * scale - {float}
+ * 
+ * Returns:
+ * {Float} A normalized scale value, in 1 / X format. 
+ *         This means that if a value less than one ( already 1/x) is passed
+ *         in, it just returns scale directly. Otherwise, it returns 
+ *         1 / scale
+ */
+OpenLayers.Util.normalizeScale = function (scale) {
+    var normScale = (scale > 1.0) ? (1.0 / scale) 
+                                  : scale;
+    return normScale;
+};
+
+/**
+ * Function: getResolutionFromScale
+ * 
+ * Parameters:
+ * scale - {Float}
+ * units - {String} Index into OpenLayers.INCHES_PER_UNIT hashtable.
+ *                  Default is degrees
+ * 
+ * Returns:
+ * {Float} The corresponding resolution given passed-in scale and unit 
+ *     parameters.  If the given scale is falsey, the returned resolution will
+ *     be undefined.
+ */
+OpenLayers.Util.getResolutionFromScale = function (scale, units) {
+    var resolution;
+    if (scale) {
+        if (units == null) {
+            units = "degrees";
+        }
+        var normScale = OpenLayers.Util.normalizeScale(scale);
+        resolution = 1 / (normScale * OpenLayers.INCHES_PER_UNIT[units]
+                                        * OpenLayers.DOTS_PER_INCH);        
+    }
+    return resolution;
+};
+
+/**
+ * Function: getScaleFromResolution
+ * 
+ * Parameters:
+ * resolution - {Float}
+ * units - {String} Index into OpenLayers.INCHES_PER_UNIT hashtable.
+ *                  Default is degrees
+ * 
+ * Returns:
+ * {Float} The corresponding scale given passed-in resolution and unit 
+ *         parameters.
+ */
+OpenLayers.Util.getScaleFromResolution = function (resolution, units) {
+
+    if (units == null) {
+        units = "degrees";
+    }
+
+    var scale = resolution * OpenLayers.INCHES_PER_UNIT[units] *
+                    OpenLayers.DOTS_PER_INCH;
+    return scale;
+};
+
+/**
+ * Function: pagePosition
+ * Calculates the position of an element on the page (see
+ * http://code.google.com/p/doctype/wiki/ArticlePageOffset)
+ *
+ * OpenLayers.Util.pagePosition is based on Yahoo's getXY method, which is
+ * Copyright (c) 2006, Yahoo! Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use of this software in source and binary forms, with or
+ * without modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ * * Redistributions of source code must retain the above copyright notice,
+ *   this list of conditions and the following disclaimer.
+ * 
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * 
+ * * Neither the name of Yahoo! Inc. nor the names of its contributors may be
+ *   used to endorse or promote products derived from this software without
+ *   specific prior written permission of Yahoo! Inc.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Parameters:
+ * forElement - {DOMElement}
+ * 
+ * Returns:
+ * {Array} two item array, Left value then Top value.
+ */
+OpenLayers.Util.pagePosition =  function(forElement) {
+    // NOTE: If element is hidden (display none or disconnected or any the
+    // ancestors are hidden) we get (0,0) by default but we still do the
+    // accumulation of scroll position.
+
+    var pos = [0, 0];
+    var viewportElement = OpenLayers.Util.getViewportElement();
+    if (!forElement || forElement == window || forElement == viewportElement) {
+        // viewport is always at 0,0 as that defined the coordinate system for
+        // this function - this avoids special case checks in the code below
+        return pos;
+    }
+
+    // Gecko browsers normally use getBoxObjectFor to calculate the position.
+    // When invoked for an element with an implicit absolute position though it
+    // can be off by one. Therefore the recursive implementation is used in
+    // those (relatively rare) cases.
+    var BUGGY_GECKO_BOX_OBJECT =
+        OpenLayers.IS_GECKO && document.getBoxObjectFor &&
+        OpenLayers.Element.getStyle(forElement, 'position') == 'absolute' &&
+        (forElement.style.top == '' || forElement.style.left == '');
+
+    var parent = null;
+    var box;
+
+    if (forElement.getBoundingClientRect) { // IE
+        box = forElement.getBoundingClientRect();
+        var scrollTop = window.pageYOffset || viewportElement.scrollTop;
+        var scrollLeft = window.pageXOffset || viewportElement.scrollLeft;
+        
+        pos[0] = box.left + scrollLeft;
+        pos[1] = box.top + scrollTop;
+
+    } else if (document.getBoxObjectFor && !BUGGY_GECKO_BOX_OBJECT) { // gecko
+        // Gecko ignores the scroll values for ancestors, up to 1.9.  See:
+        // https://bugzilla.mozilla.org/show_bug.cgi?id=328881 and
+        // https://bugzilla.mozilla.org/show_bug.cgi?id=330619
+
+        box = document.getBoxObjectFor(forElement);
+        var vpBox = document.getBoxObjectFor(viewportElement);
+        pos[0] = box.screenX - vpBox.screenX;
+        pos[1] = box.screenY - vpBox.screenY;
+
+    } else { // safari/opera
+        pos[0] = forElement.offsetLeft;
+        pos[1] = forElement.offsetTop;
+        parent = forElement.offsetParent;
+        if (parent != forElement) {
+            while (parent) {
+                pos[0] += parent.offsetLeft;
+                pos[1] += parent.offsetTop;
+                parent = parent.offsetParent;
+            }
+        }
+
+        var browser = OpenLayers.BROWSER_NAME;
+
+        // opera & (safari absolute) incorrectly account for body offsetTop
+        if (browser == "opera" || (browser == "safari" &&
+              OpenLayers.Element.getStyle(forElement, 'position') == 'absolute')) {
+            pos[1] -= document.body.offsetTop;
+        }
+
+        // accumulate the scroll positions for everything but the body element
+        parent = forElement.offsetParent;
+        while (parent && parent != document.body) {
+            pos[0] -= parent.scrollLeft;
+            // see https://bugs.opera.com/show_bug.cgi?id=249965
+            if (browser != "opera" || parent.tagName != 'TR') {
+                pos[1] -= parent.scrollTop;
+            }
+            parent = parent.offsetParent;
+        }
+    }
+    
+    return pos;
+};
+
+/**
+ * Function: getViewportElement
+ * Returns die viewport element of the document. The viewport element is
+ * usually document.documentElement, except in IE,where it is either
+ * document.body or document.documentElement, depending on the document's
+ * compatibility mode (see
+ * http://code.google.com/p/doctype/wiki/ArticleClientViewportElement)
+ *
+ * Returns:
+ * {DOMElement}
+ */
+OpenLayers.Util.getViewportElement = function() {
+    var viewportElement = arguments.callee.viewportElement;
+    if (viewportElement == undefined) {
+        viewportElement = (OpenLayers.BROWSER_NAME == "msie" &&
+            document.compatMode != 'CSS1Compat') ? document.body :
+            document.documentElement;
+        arguments.callee.viewportElement = viewportElement;
+    }
+    return viewportElement;
+};
+
+/** 
+ * Function: isEquivalentUrl
+ * Test two URLs for equivalence. 
+ * 
+ * Setting 'ignoreCase' allows for case-independent comparison.
+ * 
+ * Comparison is based on: 
+ *  - Protocol
+ *  - Host (evaluated without the port)
+ *  - Port (set 'ignorePort80' to ignore "80" values)
+ *  - Hash ( set 'ignoreHash' to disable)
+ *  - Pathname (for relative <-> absolute comparison) 
+ *  - Arguments (so they can be out of order)
+ *  
+ * Parameters:
+ * url1 - {String}
+ * url2 - {String}
+ * options - {Object} Allows for customization of comparison:
+ *                    'ignoreCase' - Default is True
+ *                    'ignorePort80' - Default is True
+ *                    'ignoreHash' - Default is True
+ *
+ * Returns:
+ * {Boolean} Whether or not the two URLs are equivalent
+ */
+OpenLayers.Util.isEquivalentUrl = function(url1, url2, options) {
+    options = options || {};
+
+    OpenLayers.Util.applyDefaults(options, {
+        ignoreCase: true,
+        ignorePort80: true,
+        ignoreHash: true,
+        splitArgs: false
+    });
+
+    var urlObj1 = OpenLayers.Util.createUrlObject(url1, options);
+    var urlObj2 = OpenLayers.Util.createUrlObject(url2, options);
+
+    //compare all keys except for "args" (treated below)
+    for(var key in urlObj1) {
+        if(key !== "args") {
+            if(urlObj1[key] != urlObj2[key]) {
+                return false;
+            }
+        }
+    }
+
+    // compare search args - irrespective of order
+    for(var key in urlObj1.args) {
+        if(urlObj1.args[key] != urlObj2.args[key]) {
+            return false;
+        }
+        delete urlObj2.args[key];
+    }
+    // urlObj2 shouldn't have any args left
+    for(var key in urlObj2.args) {
+        return false;
+    }
+    
+    return true;
+};
+
+/**
+ * Function: createUrlObject
+ * 
+ * Parameters:
+ * url - {String}
+ * options - {Object} A hash of options.
+ *
+ * Valid options:
+ *   ignoreCase - {Boolean} lowercase url,
+ *   ignorePort80 - {Boolean} don't include explicit port if port is 80,
+ *   ignoreHash - {Boolean} Don't include part of url after the hash (#).
+ *   splitArgs - {Boolean} Split comma delimited params into arrays? Default is
+ *       true.
+ * 
+ * Returns:
+ * {Object} An object with separate url, a, port, host, and args parsed out 
+ *          and ready for comparison
+ */
+OpenLayers.Util.createUrlObject = function(url, options) {
+    options = options || {};
+
+    // deal with relative urls first
+    if(!(/^\w+:\/\//).test(url)) {
+        var loc = window.location;
+        var port = loc.port ? ":" + loc.port : "";
+        var fullUrl = loc.protocol + "//" + loc.host.split(":").shift() + port;
+        if(url.indexOf("/") === 0) {
+            // full pathname
+            url = fullUrl + url;
+        } else {
+            // relative to current path
+            var parts = loc.pathname.split("/");
+            parts.pop();
+            url = fullUrl + parts.join("/") + "/" + url;
+        }
+    }
+  
+    if (options.ignoreCase) {
+        url = url.toLowerCase(); 
+    }
+
+    var a = document.createElement('a');
+    a.href = url;
+    
+    var urlObject = {};
+    
+    //host (without port)
+    urlObject.host = a.host.split(":").shift();
+
+    //protocol
+    urlObject.protocol = a.protocol;  
+
+    //port (get uniform browser behavior with port 80 here)
+    if(options.ignorePort80) {
+        urlObject.port = (a.port == "80" || a.port == "0") ? "" : a.port;
+    } else {
+        urlObject.port = (a.port == "" || a.port == "0") ? "80" : a.port;
+    }
+
+    //hash
+    urlObject.hash = (options.ignoreHash || a.hash === "#") ? "" : a.hash;  
+    
+    //args
+    var queryString = a.search;
+    if (!queryString) {
+        var qMark = url.indexOf("?");
+        queryString = (qMark != -1) ? url.substr(qMark) : "";
+    }
+    urlObject.args = OpenLayers.Util.getParameters(queryString,
+            {splitArgs: options.splitArgs});
+
+    // pathname
+    //
+    // This is a workaround for Internet Explorer where
+    // window.location.pathname has a leading "/", but
+    // a.pathname has no leading "/".
+    urlObject.pathname = (a.pathname.charAt(0) == "/") ? a.pathname : "/" + a.pathname;
+    
+    return urlObject; 
+};
+ 
+/**
+ * Function: removeTail
+ * Takes a url and removes everything after the ? and #
+ * 
+ * Parameters:
+ * url - {String} The url to process
+ * 
+ * Returns:
+ * {String} The string with all queryString and Hash removed
+ */
+OpenLayers.Util.removeTail = function(url) {
+    var head = null;
+    
+    var qMark = url.indexOf("?");
+    var hashMark = url.indexOf("#");
+
+    if (qMark == -1) {
+        head = (hashMark != -1) ? url.substr(0,hashMark) : url;
+    } else {
+        head = (hashMark != -1) ? url.substr(0,Math.min(qMark, hashMark)) 
+                                  : url.substr(0, qMark);
+    }
+    return head;
+};
+
+/**
+ * Constant: IS_GECKO
+ * {Boolean} True if the userAgent reports the browser to use the Gecko engine
+ */
+OpenLayers.IS_GECKO = (function() {
+    var ua = navigator.userAgent.toLowerCase();
+    return ua.indexOf("webkit") == -1 && ua.indexOf("gecko") != -1;
+})();
+
+/**
+ * Constant: CANVAS_SUPPORTED
+ * {Boolean} True if canvas 2d is supported.
+ */
+OpenLayers.CANVAS_SUPPORTED = (function() {
+    var elem = document.createElement('canvas');
+    return !!(elem.getContext && elem.getContext('2d'));
+})();
+
+/**
+ * Constant: BROWSER_NAME
+ * {String}
+ * A substring of the navigator.userAgent property.  Depending on the userAgent
+ *     property, this will be the empty string or one of the following:
+ *     * "opera" -- Opera
+ *     * "msie"  -- Internet Explorer
+ *     * "safari" -- Safari
+ *     * "firefox" -- Firefox
+ *     * "mozilla" -- Mozilla
+ */
+OpenLayers.BROWSER_NAME = (function() {
+    var name = "";
+    var ua = navigator.userAgent.toLowerCase();
+    if (ua.indexOf("opera") != -1) {
+        name = "opera";
+    } else if (ua.indexOf("msie") != -1) {
+        name = "msie";
+    } else if (ua.indexOf("safari") != -1) {
+        name = "safari";
+    } else if (ua.indexOf("mozilla") != -1) {
+        if (ua.indexOf("firefox") != -1) {
+            name = "firefox";
+        } else {
+            name = "mozilla";
+        }
+    }
+    return name;
+})();
+
+/**
+ * Function: getBrowserName
+ * 
+ * Returns:
+ * {String} A string which specifies which is the current 
+ *          browser in which we are running. 
+ * 
+ *          Currently-supported browser detection and codes:
+ *           * 'opera' -- Opera
+ *           * 'msie'  -- Internet Explorer
+ *           * 'safari' -- Safari
+ *           * 'firefox' -- Firefox
+ *           * 'mozilla' -- Mozilla
+ * 
+ *          If we are unable to property identify the browser, we 
+ *           return an empty string.
+ */
+OpenLayers.Util.getBrowserName = function() {
+    return OpenLayers.BROWSER_NAME;
+};
+
+/**
+ * Method: getRenderedDimensions
+ * Renders the contentHTML offscreen to determine actual dimensions for
+ *     popup sizing. As we need layout to determine dimensions the content
+ *     is rendered -9999px to the left and absolute to ensure the 
+ *     scrollbars do not flicker
+ *     
+ * Parameters:
+ * contentHTML
+ * size - {<OpenLayers.Size>} If either the 'w' or 'h' properties is 
+ *     specified, we fix that dimension of the div to be measured. This is 
+ *     useful in the case where we have a limit in one dimension and must 
+ *     therefore meaure the flow in the other dimension.
+ * options - {Object}
+ *
+ * Allowed Options:
+ *     displayClass - {String} Optional parameter.  A CSS class name(s) string
+ *         to provide the CSS context of the rendered content.
+ *     containerElement - {DOMElement} Optional parameter. Insert the HTML to 
+ *         this node instead of the body root when calculating dimensions. 
+ * 
+ * Returns:
+ * {<OpenLayers.Size>}
+ */
+OpenLayers.Util.getRenderedDimensions = function(contentHTML, size, options) {
+    
+    var w, h;
+    
+    // create temp container div with restricted size
+    var container = document.createElement("div");
+    container.style.visibility = "hidden";
+        
+    var containerElement = (options && options.containerElement) 
+        ? options.containerElement : document.body;
+    
+    // Opera and IE7 can't handle a node with position:aboslute if it inherits
+    // position:absolute from a parent.
+    var parentHasPositionAbsolute = false;
+    var superContainer = null;
+    var parent = containerElement;
+    while (parent && parent.tagName.toLowerCase()!="body") {
+        var parentPosition = OpenLayers.Element.getStyle(parent, "position");
+        if(parentPosition == "absolute") {
+            parentHasPositionAbsolute = true;
+            break;
+        } else if (parentPosition && parentPosition != "static") {
+            break;
+        }
+        parent = parent.parentNode;
+    }
+    if(parentHasPositionAbsolute && (containerElement.clientHeight === 0 || 
+                                     containerElement.clientWidth === 0) ){
+        superContainer = document.createElement("div");
+        superContainer.style.visibility = "hidden";
+        superContainer.style.position = "absolute";
+        superContainer.style.overflow = "visible";
+        superContainer.style.width = document.body.clientWidth + "px";
+        superContainer.style.height = document.body.clientHeight + "px";
+        superContainer.appendChild(container);
+    }
+    container.style.position = "absolute";
+
+    //fix a dimension, if specified.
+    if (size) {
+        if (size.w) {
+            w = size.w;
+            container.style.width = w + "px";
+        } else if (size.h) {
+            h = size.h;
+            container.style.height = h + "px";
+        }
+    }
+
+    //add css classes, if specified
+    if (options && options.displayClass) {
+        container.className = options.displayClass;
+    }
+    
+    // create temp content div and assign content
+    var content = document.createElement("div");
+    content.innerHTML = contentHTML;
+    
+    // we need overflow visible when calculating the size
+    content.style.overflow = "visible";
+    if (content.childNodes) {
+        for (var i=0, l=content.childNodes.length; i<l; i++) {
+            if (!content.childNodes[i].style) continue;
+            content.childNodes[i].style.overflow = "visible";
+        }
+    }
+    
+    // add content to restricted container 
+    container.appendChild(content);
+    
+    // append container to body for rendering
+    if (superContainer) {
+        containerElement.appendChild(superContainer);
+    } else {
+        containerElement.appendChild(container);
+    }
+    
+    // calculate scroll width of content and add corners and shadow width
+    if (!w) {
+        w = parseInt(content.scrollWidth);
+    
+        // update container width to allow height to adjust
+        container.style.width = w + "px";
+    }        
+    // capture height and add shadow and corner image widths
+    if (!h) {
+        h = parseInt(content.scrollHeight);
+    }
+
+    // remove elements
+    container.removeChild(content);
+    if (superContainer) {
+        superContainer.removeChild(container);
+        containerElement.removeChild(superContainer);
+    } else {
+        containerElement.removeChild(container);
+    }
+    
+    return new OpenLayers.Size(w, h);
+};
+
+/**
+ * APIFunction: getScrollbarWidth
+ * This function has been modified by the OpenLayers from the original version,
+ *     written by Matthew Eernisse and released under the Apache 2 
+ *     license here:
+ * 
+ *     http://www.fleegix.org/articles/2006/05/30/getting-the-scrollbar-width-in-pixels
+ * 
+ *     It has been modified simply to cache its value, since it is physically 
+ *     impossible that this code could ever run in more than one browser at 
+ *     once. 
+ * 
+ * Returns:
+ * {Integer}
+ */
+OpenLayers.Util.getScrollbarWidth = function() {
+    
+    var scrollbarWidth = OpenLayers.Util._scrollbarWidth;
+    
+    if (scrollbarWidth == null) {
+        var scr = null;
+        var inn = null;
+        var wNoScroll = 0;
+        var wScroll = 0;
+    
+        // Outer scrolling div
+        scr = document.createElement('div');
+        scr.style.position = 'absolute';
+        scr.style.top = '-1000px';
+        scr.style.left = '-1000px';
+        scr.style.width = '100px';
+        scr.style.height = '50px';
+        // Start with no scrollbar
+        scr.style.overflow = 'hidden';
+    
+        // Inner content div
+        inn = document.createElement('div');
+        inn.style.width = '100%';
+        inn.style.height = '200px';
+    
+        // Put the inner div in the scrolling div
+        scr.appendChild(inn);
+        // Append the scrolling div to the doc
+        document.body.appendChild(scr);
+    
+        // Width of the inner div sans scrollbar
+        wNoScroll = inn.offsetWidth;
+    
+        // Add the scrollbar
+        scr.style.overflow = 'scroll';
+        // Width of the inner div width scrollbar
+        wScroll = inn.offsetWidth;
+    
+        // Remove the scrolling div from the doc
+        document.body.removeChild(document.body.lastChild);
+    
+        // Pixel width of the scroller
+        OpenLayers.Util._scrollbarWidth = (wNoScroll - wScroll);
+        scrollbarWidth = OpenLayers.Util._scrollbarWidth;
+    }
+
+    return scrollbarWidth;
+};
+
+/**
+ * APIFunction: getFormattedLonLat
+ * This function will return latitude or longitude value formatted as 
+ *
+ * Parameters:
+ * coordinate - {Float} the coordinate value to be formatted
+ * axis - {String} value of either 'lat' or 'lon' to indicate which axis is to
+ *          to be formatted (default = lat)
+ * dmsOption - {String} specify the precision of the output can be one of:
+ *           'dms' show degrees minutes and seconds
+ *           'dm' show only degrees and minutes
+ *           'd' show only degrees
+ * 
+ * Returns:
+ * {String} the coordinate value formatted as a string
+ */
+OpenLayers.Util.getFormattedLonLat = function(coordinate, axis, dmsOption) {
+    if (!dmsOption) {
+        dmsOption = 'dms';    //default to show degree, minutes, seconds
+    }
+
+    coordinate = (coordinate+540)%360 - 180; // normalize for sphere being round
+
+    var abscoordinate = Math.abs(coordinate);
+    var coordinatedegrees = Math.floor(abscoordinate);
+
+    var coordinateminutes = (abscoordinate - coordinatedegrees)/(1/60);
+    var tempcoordinateminutes = coordinateminutes;
+    coordinateminutes = Math.floor(coordinateminutes);
+    var coordinateseconds = (tempcoordinateminutes - coordinateminutes)/(1/60);
+    coordinateseconds =  Math.round(coordinateseconds*10);
+    coordinateseconds /= 10;
+
+    if( coordinateseconds >= 60) { 
+        coordinateseconds -= 60; 
+        coordinateminutes += 1; 
+        if( coordinateminutes >= 60) { 
+            coordinateminutes -= 60; 
+            coordinatedegrees += 1; 
+        } 
+    }
+    
+    if( coordinatedegrees < 10 ) {
+        coordinatedegrees = "0" + coordinatedegrees;
+    }
+    var str = coordinatedegrees + "\u00B0";
+
+    if (dmsOption.indexOf('dm') >= 0) {
+        if( coordinateminutes < 10 ) {
+            coordinateminutes = "0" + coordinateminutes;
+        }
+        str += coordinateminutes + "'";
+  
+        if (dmsOption.indexOf('dms') >= 0) {
+            if( coordinateseconds < 10 ) {
+                coordinateseconds = "0" + coordinateseconds;
+            }
+            str += coordinateseconds + '"';
+        }
+    }
+    
+    if (axis == "lon") {
+        str += coordinate < 0 ? OpenLayers.i18n("W") : OpenLayers.i18n("E");
+    } else {
+        str += coordinate < 0 ? OpenLayers.i18n("S") : OpenLayers.i18n("N");
+    }
+    return str;
+};
+
+/* ======================================================================
+    OpenLayers/Events.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Util.js
+ */
+
+/**
+ * Namespace: OpenLayers.Event
+ * Utility functions for event handling.
+ */
+OpenLayers.Event = {
+
+    /** 
+     * Property: observers 
+     * {Object} A hashtable cache of the event observers. Keyed by
+     * element._eventCacheID 
+     */
+    observers: false,
+
+    /**
+     * Constant: KEY_SPACE
+     * {int}
+     */
+    KEY_SPACE: 32,
+    
+    /** 
+     * Constant: KEY_BACKSPACE 
+     * {int} 
+     */
+    KEY_BACKSPACE: 8,
+
+    /** 
+     * Constant: KEY_TAB 
+     * {int} 
+     */
+    KEY_TAB: 9,
+
+    /** 
+     * Constant: KEY_RETURN 
+     * {int} 
+     */
+    KEY_RETURN: 13,
+
+    /** 
+     * Constant: KEY_ESC 
+     * {int} 
+     */
+    KEY_ESC: 27,
+
+    /** 
+     * Constant: KEY_LEFT 
+     * {int} 
+     */
+    KEY_LEFT: 37,
+
+    /** 
+     * Constant: KEY_UP 
+     * {int} 
+     */
+    KEY_UP: 38,
+
+    /** 
+     * Constant: KEY_RIGHT 
+     * {int} 
+     */
+    KEY_RIGHT: 39,
+
+    /** 
+     * Constant: KEY_DOWN 
+     * {int} 
+     */
+    KEY_DOWN: 40,
+
+    /** 
+     * Constant: KEY_DELETE 
+     * {int} 
+     */
+    KEY_DELETE: 46,
+
+
+    /**
+     * Method: element
+     * Cross browser event element detection.
+     * 
+     * Parameters:
+     * event - {Event} 
+     * 
+     * Returns:
+     * {DOMElement} The element that caused the event 
+     */
+    element: function(event) {
+        return event.target || event.srcElement;
+    },
+
+    /**
+     * Method: isSingleTouch
+     * Determine whether event was caused by a single touch
+     *
+     * Parameters:
+     * event - {Event}
+     *
+     * Returns:
+     * {Boolean}
+     */
+    isSingleTouch: function(event) {
+        return event.touches && event.touches.length == 1;
+    },
+
+    /**
+     * Method: isMultiTouch
+     * Determine whether event was caused by a multi touch
+     *
+     * Parameters:
+     * event - {Event}
+     *
+     * Returns:
+     * {Boolean}
+     */
+    isMultiTouch: function(event) {
+        return event.touches && event.touches.length > 1;
+    },
+
+    /**
+     * Method: isLeftClick
+     * Determine whether event was caused by a left click. 
+     *
+     * Parameters:
+     * event - {Event} 
+     * 
+     * Returns:
+     * {Boolean}
+     */
+    isLeftClick: function(event) {
+        return (((event.which) && (event.which == 1)) ||
+                ((event.button) && (event.button == 1)));
+    },
+
+    /**
+     * Method: isRightClick
+     * Determine whether event was caused by a right mouse click. 
+     *
+     * Parameters:
+     * event - {Event} 
+     * 
+     * Returns:
+     * {Boolean}
+     */
+     isRightClick: function(event) {
+        return (((event.which) && (event.which == 3)) ||
+                ((event.button) && (event.button == 2)));
+    },
+     
+    /**
+     * Method: stop
+     * Stops an event from propagating. 
+     *
+     * Parameters: 
+     * event - {Event} 
+     * allowDefault - {Boolean} If true, we stop the event chain but 
+     *     still allow the default browser behaviour (text selection,
+     *     radio-button clicking, etc).  Default is false.
+     */
+    stop: function(event, allowDefault) {
+        
+        if (!allowDefault) { 
+            OpenLayers.Event.preventDefault(event);
+        }
+                
+        if (event.stopPropagation) {
+            event.stopPropagation();
+        } else {
+            event.cancelBubble = true;
+        }
+    },
+
+    /**
+     * Method: preventDefault
+     * Cancels the event if it is cancelable, without stopping further
+     * propagation of the event.
+     *
+     * Parameters:
+     * event - {Event}
+     */
+    preventDefault: function(event) {
+        if (event.preventDefault) {
+            event.preventDefault();
+        } else {
+            event.returnValue = false;
+        }
+    },
+
+    /** 
+     * Method: findElement
+     * 
+     * Parameters:
+     * event - {Event} 
+     * tagName - {String} 
+     * 
+     * Returns:
+     * {DOMElement} The first node with the given tagName, starting from the
+     * node the event was triggered on and traversing the DOM upwards
+     */
+    findElement: function(event, tagName) {
+        var element = OpenLayers.Event.element(event);
+        while (element.parentNode && (!element.tagName ||
+              (element.tagName.toUpperCase() != tagName.toUpperCase()))){
+            element = element.parentNode;
+        }
+        return element;
+    },
+
+    /** 
+     * Method: observe
+     * 
+     * Parameters:
+     * elementParam - {DOMElement || String} 
+     * name - {String} 
+     * observer - {function} 
+     * useCapture - {Boolean} 
+     */
+    observe: function(elementParam, name, observer, useCapture) {
+        var element = OpenLayers.Util.getElement(elementParam);
+        useCapture = useCapture || false;
+
+        if (name == 'keypress' &&
+           (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
+           || element.attachEvent)) {
+            name = 'keydown';
+        }
+
+        //if observers cache has not yet been created, create it
+        if (!this.observers) {
+            this.observers = {};
+        }
+
+        //if not already assigned, make a new unique cache ID
+        if (!element._eventCacheID) {
+            var idPrefix = "eventCacheID_";
+            if (element.id) {
+                idPrefix = element.id + "_" + idPrefix;
+            }
+            element._eventCacheID = OpenLayers.Util.createUniqueID(idPrefix);
+        }
+
+        var cacheID = element._eventCacheID;
+
+        //if there is not yet a hash entry for this element, add one
+        if (!this.observers[cacheID]) {
+            this.observers[cacheID] = [];
+        }
+
+        //add a new observer to this element's list
+        this.observers[cacheID].push({
+            'element': element,
+            'name': name,
+            'observer': observer,
+            'useCapture': useCapture
+        });
+
+        //add the actual browser event listener
+        if (element.addEventListener) {
+            element.addEventListener(name, observer, useCapture);
+        } else if (element.attachEvent) {
+            element.attachEvent('on' + name, observer);
+        }
+    },
+
+    /** 
+     * Method: stopObservingElement
+     * Given the id of an element to stop observing, cycle through the 
+     *   element's cached observers, calling stopObserving on each one, 
+     *   skipping those entries which can no longer be removed.
+     * 
+     * parameters:
+     * elementParam - {DOMElement || String} 
+     */
+    stopObservingElement: function(elementParam) {
+        var element = OpenLayers.Util.getElement(elementParam);
+        var cacheID = element._eventCacheID;
+
+        this._removeElementObservers(OpenLayers.Event.observers[cacheID]);
+    },
+
+    /**
+     * Method: _removeElementObservers
+     *
+     * Parameters:
+     * elementObservers - {Array(Object)} Array of (element, name, 
+     *                                         observer, usecapture) objects, 
+     *                                         taken directly from hashtable
+     */
+    _removeElementObservers: function(elementObservers) {
+        if (elementObservers) {
+            for(var i = elementObservers.length-1; i >= 0; i--) {
+                var entry = elementObservers[i];
+                OpenLayers.Event.stopObserving.apply(this, [
+                    entry.element, entry.name, entry.observer, entry.useCapture
+                ]);
+            }
+        }
+    },
+
+    /**
+     * Method: stopObserving
+     * 
+     * Parameters:
+     * elementParam - {DOMElement || String} 
+     * name - {String} 
+     * observer - {function} 
+     * useCapture - {Boolean} 
+     *  
+     * Returns:
+     * {Boolean} Whether or not the event observer was removed
+     */
+    stopObserving: function(elementParam, name, observer, useCapture) {
+        useCapture = useCapture || false;
+    
+        var element = OpenLayers.Util.getElement(elementParam);
+        var cacheID = element._eventCacheID;
+
+        if (name == 'keypress') {
+            if ( navigator.appVersion.match(/Konqueror|Safari|KHTML/) || 
+                 element.detachEvent) {
+              name = 'keydown';
+            }
+        }
+
+        // find element's entry in this.observers cache and remove it
+        var foundEntry = false;
+        var elementObservers = OpenLayers.Event.observers[cacheID];
+        if (elementObservers) {
+    
+            // find the specific event type in the element's list
+            var i=0;
+            while(!foundEntry && i < elementObservers.length) {
+                var cacheEntry = elementObservers[i];
+    
+                if ((cacheEntry.name == name) &&
+                    (cacheEntry.observer == observer) &&
+                    (cacheEntry.useCapture == useCapture)) {
+    
+                    elementObservers.splice(i, 1);
+                    if (elementObservers.length == 0) {
+                        delete OpenLayers.Event.observers[cacheID];
+                    }
+                    foundEntry = true;
+                    break; 
+                }
+                i++;           
+            }
+        }
+    
+        //actually remove the event listener from browser
+        if (foundEntry) {
+            if (element.removeEventListener) {
+                element.removeEventListener(name, observer, useCapture);
+            } else if (element && element.detachEvent) {
+                element.detachEvent('on' + name, observer);
+            }
+        }
+        return foundEntry;
+    },
+    
+    /** 
+     * Method: unloadCache
+     * Cycle through all the element entries in the events cache and call
+     *   stopObservingElement on each. 
+     */
+    unloadCache: function() {
+        // check for OpenLayers.Event before checking for observers, because
+        // OpenLayers.Event may be undefined in IE if no map instance was
+        // created
+        if (OpenLayers.Event && OpenLayers.Event.observers) {
+            for (var cacheID in OpenLayers.Event.observers) {
+                var elementObservers = OpenLayers.Event.observers[cacheID];
+                OpenLayers.Event._removeElementObservers.apply(this, 
+                                                           [elementObservers]);
+            }
+            OpenLayers.Event.observers = false;
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Event"
+};
+
+/* prevent memory leaks in IE */
+OpenLayers.Event.observe(window, 'unload', OpenLayers.Event.unloadCache, false);
+
+/**
+ * Class: OpenLayers.Events
+ */
+OpenLayers.Events = OpenLayers.Class({
+
+    /** 
+     * Constant: BROWSER_EVENTS
+     * {Array(String)} supported events 
+     */
+    BROWSER_EVENTS: [
+        "mouseover", "mouseout",
+        "mousedown", "mouseup", "mousemove", 
+        "click", "dblclick", "rightclick", "dblrightclick",
+        "resize", "focus", "blur",
+        "touchstart", "touchmove", "touchend",
+        "keydown"
+    ],
+
+    /** 
+     * Property: listeners 
+     * {Object} Hashtable of Array(Function): events listener functions  
+     */
+    listeners: null,
+
+    /** 
+     * Property: object 
+     * {Object}  the code object issuing application events 
+     */
+    object: null,
+
+    /** 
+     * Property: element 
+     * {DOMElement}  the DOM element receiving browser events 
+     */
+    element: null,
+
+    /** 
+     * Property: eventHandler 
+     * {Function}  bound event handler attached to elements 
+     */
+    eventHandler: null,
+
+    /** 
+     * APIProperty: fallThrough 
+     * {Boolean} 
+     */
+    fallThrough: null,
+
+    /** 
+     * APIProperty: includeXY
+     * {Boolean} Should the .xy property automatically be created for browser
+     *    mouse events? In general, this should be false. If it is true, then
+     *    mouse events will automatically generate a '.xy' property on the 
+     *    event object that is passed. (Prior to OpenLayers 2.7, this was true
+     *    by default.) Otherwise, you can call the getMousePosition on the
+     *    relevant events handler on the object available via the 'evt.object'
+     *    property of the evt object. So, for most events, you can call:
+     *    function named(evt) { 
+     *        this.xy = this.object.events.getMousePosition(evt) 
+     *    } 
+     *
+     *    This option typically defaults to false for performance reasons:
+     *    when creating an events object whose primary purpose is to manage
+     *    relatively positioned mouse events within a div, it may make
+     *    sense to set it to true.
+     *
+     *    This option is also used to control whether the events object caches
+     *    offsets. If this is false, it will not: the reason for this is that
+     *    it is only expected to be called many times if the includeXY property
+     *    is set to true. If you set this to true, you are expected to clear 
+     *    the offset cache manually (using this.clearMouseCache()) if:
+     *        the border of the element changes
+     *        the location of the element in the page changes
+    */
+    includeXY: false,      
+    
+    /**
+     * APIProperty: extensions
+     * {Object} Event extensions registered with this instance. Keys are
+     *     event types, values are {OpenLayers.Events.*} extension instances or
+     *     {Boolean} for events that an instantiated extension provides in
+     *     addition to the one it was created for.
+     *
+     * Extensions create an event in addition to browser events, which usually
+     * fires when a sequence of browser events is completed. Extensions are
+     * automatically instantiated when a listener is registered for an event
+     * provided by an extension.
+     *
+     * Extensions are created in the <OpenLayers.Events> namespace using
+     * <OpenLayers.Class>, and named after the event they provide.
+     * The constructor receives the target <OpenLayers.Events> instance as
+     * argument. Extensions that need to capture browser events before they
+     * propagate can register their listeners events using <register>, with
+     * {extension: true} as 4th argument.
+     *
+     * If an extension creates more than one event, an alias for each event
+     * type should be created and reference the same class. The constructor
+     * should set a reference in the target's extensions registry to itself.
+     *
+     * Below is a minimal extension that provides the "foostart" and "fooend"
+     * event types, which replace the native "click" event type if clicked on
+     * an element with the css class "foo":
+     *
+     * (code)
+     *   OpenLayers.Events.foostart = OpenLayers.Class({
+     *       initialize: function(target) {
+     *           this.target = target;
+     *           this.target.register("click", this, this.doStuff, {extension: true});
+     *           // only required if extension provides more than one event type
+     *           this.target.extensions["foostart"] = true;
+     *           this.target.extensions["fooend"] = true;
+     *       },
+     *       destroy: function() {
+     *           var target = this.target;
+     *           target.unregister("click", this, this.doStuff);
+     *           delete this.target;
+     *           // only required if extension provides more than one event type
+     *           delete target.extensions["foostart"];
+     *           delete target.extensions["fooend"];
+     *       },
+     *       doStuff: function(evt) {
+     *           var propagate = true;
+     *           if (OpenLayers.Event.element(evt).className === "foo") {
+     *               propagate = false;
+     *               var target = this.target;
+     *               target.triggerEvent("foostart");
+     *               window.setTimeout(function() {
+     *                   target.triggerEvent("fooend");
+     *               }, 1000);
+     *           }
+     *           return propagate;
+     *       }
+     *   });
+     *   // only required if extension provides more than one event type
+     *   OpenLayers.Events.fooend = OpenLayers.Events.foostart;
+     * (end)
+     * 
+     */
+    extensions: null,
+    
+    /**
+     * Property: extensionCount
+     * {Object} Keys are event types (like in <listeners>), values are the
+     *     number of extension listeners for each event type.
+     */
+    extensionCount: null,
+
+    /**
+     * Method: clearMouseListener
+     * A version of <clearMouseCache> that is bound to this instance so that
+     *     it can be used with <OpenLayers.Event.observe> and
+     *     <OpenLayers.Event.stopObserving>.
+     */
+    clearMouseListener: null,
+
+    /**
+     * Constructor: OpenLayers.Events
+     * Construct an OpenLayers.Events object.
+     *
+     * Parameters:
+     * object - {Object} The js object to which this Events object  is being added
+     * element - {DOMElement} A dom element to respond to browser events
+     * eventTypes - {Array(String)} Deprecated.  Array of custom application
+     *     events.  A listener may be registered for any named event, regardless
+     *     of the values provided here.
+     * fallThrough - {Boolean} Allow events to fall through after these have
+     *                         been handled?
+     * options - {Object} Options for the events object.
+     */
+    initialize: function (object, element, eventTypes, fallThrough, options) {
+        OpenLayers.Util.extend(this, options);
+        this.object     = object;
+        this.fallThrough = fallThrough;
+        this.listeners  = {};
+        this.extensions = {};
+        this.extensionCount = {};
+        this._msTouches = [];
+        
+        // if a dom element is specified, add a listeners list 
+        // for browser events on the element and register them
+        if (element != null) {
+            this.attachToElement(element);
+        }
+    },
+
+    /**
+     * APIMethod: destroy
+     */
+    destroy: function () {
+        for (var e in this.extensions) {
+            if (typeof this.extensions[e] !== "boolean") {
+                this.extensions[e].destroy();
+            }
+        }
+        this.extensions = null;
+        if (this.element) {
+            OpenLayers.Event.stopObservingElement(this.element);
+            if(this.element.hasScrollEvent) {
+                OpenLayers.Event.stopObserving(
+                    window, "scroll", this.clearMouseListener
+                );
+            }
+        }
+        this.element = null;
+
+        this.listeners = null;
+        this.object = null;
+        this.fallThrough = null;
+        this.eventHandler = null;
+    },
+
+    /**
+     * APIMethod: addEventType
+     * Deprecated.  Any event can be triggered without adding it first.
+     * 
+     * Parameters:
+     * eventName - {String}
+     */
+    addEventType: function(eventName) {
+    },
+
+    /**
+     * Method: attachToElement
+     *
+     * Parameters:
+     * element - {HTMLDOMElement} a DOM element to attach browser events to
+     */
+    attachToElement: function (element) {
+        if (this.element) {
+            OpenLayers.Event.stopObservingElement(this.element);
+        } else {
+            // keep a bound copy of handleBrowserEvent() so that we can
+            // pass the same function to both Event.observe() and .stopObserving()
+            this.eventHandler = OpenLayers.Function.bindAsEventListener(
+                this.handleBrowserEvent, this
+            );
+            
+            // to be used with observe and stopObserving
+            this.clearMouseListener = OpenLayers.Function.bind(
+                this.clearMouseCache, this
+            );
+        }
+        this.element = element;
+        var msTouch = !!window.navigator.msMaxTouchPoints;
+        var type;
+        for (var i = 0, len = this.BROWSER_EVENTS.length; i < len; i++) {
+            type = this.BROWSER_EVENTS[i];
+            // register the event cross-browser
+            OpenLayers.Event.observe(element, type, this.eventHandler
+            );
+            if (msTouch && type.indexOf('touch') === 0) {
+                this.addMsTouchListener(element, type, this.eventHandler);
+            }
+        }
+        // disable dragstart in IE so that mousedown/move/up works normally
+        OpenLayers.Event.observe(element, "dragstart", OpenLayers.Event.stop);
+    },
+    
+    /**
+     * APIMethod: on
+     * Convenience method for registering listeners with a common scope.
+     *     Internally, this method calls <register> as shown in the examples
+     *     below.
+     *
+     * Example use:
+     * (code)
+     * // register a single listener for the "loadstart" event
+     * events.on({"loadstart": loadStartListener});
+     *
+     * // this is equivalent to the following
+     * events.register("loadstart", undefined, loadStartListener);
+     *
+     * // register multiple listeners to be called with the same `this` object
+     * events.on({
+     *     "loadstart": loadStartListener,
+     *     "loadend": loadEndListener,
+     *     scope: object
+     * });
+     *
+     * // this is equivalent to the following
+     * events.register("loadstart", object, loadStartListener);
+     * events.register("loadend", object, loadEndListener);
+     * (end)
+     *
+     * Parameters:
+     *  object - {Object}     
+     */
+    on: function(object) {
+        for(var type in object) {
+            if(type != "scope" && object.hasOwnProperty(type)) {
+                this.register(type, object.scope, object[type]);
+            }
+        }
+    },
+
+    /**
+     * APIMethod: register
+     * Register an event on the events object.
+     *
+     * When the event is triggered, the 'func' function will be called, in the
+     * context of 'obj'. Imagine we were to register an event, specifying an 
+     * OpenLayers.Bounds Object as 'obj'. When the event is triggered, the 
+     * context in the callback function will be our Bounds object. This means
+     * that within our callback function, we can access the properties and 
+     * methods of the Bounds object through the "this" variable. So our 
+     * callback could execute something like: 
+     * :    leftStr = "Left: " + this.left;
+     *   
+     *                   or
+     *  
+     * :    centerStr = "Center: " + this.getCenterLonLat();
+     *
+     * Parameters:
+     * type - {String} Name of the event to register
+     * obj - {Object} The object to bind the context to for the callback#.
+     *     If no object is specified, default is the Events's 'object' property.
+     * func - {Function} The callback function. If no callback is 
+     *     specified, this function does nothing.
+     * priority - {Boolean|Object} If true, adds the new listener to the
+     *     *front* of the events queue instead of to the end.
+     *
+     * Valid options for priority:
+     * extension - {Boolean} If true, then the event will be registered as
+     *     extension event. Extension events are handled before all other
+     *     events.
+     */
+    register: function (type, obj, func, priority) {
+        if (type in OpenLayers.Events && !this.extensions[type]) {
+            this.extensions[type] = new OpenLayers.Events[type](this);
+        }
+        if (func != null) {
+            if (obj == null)  {
+                obj = this.object;
+            }
+            var listeners = this.listeners[type];
+            if (!listeners) {
+                listeners = [];
+                this.listeners[type] = listeners;
+                this.extensionCount[type] = 0;
+            }
+            var listener = {obj: obj, func: func};
+            if (priority) {
+                listeners.splice(this.extensionCount[type], 0, listener);
+                if (typeof priority === "object" && priority.extension) {
+                    this.extensionCount[type]++;
+                }
+            } else {
+                listeners.push(listener);
+            }
+        }
+    },
+
+    /**
+     * APIMethod: registerPriority
+     * Same as register() but adds the new listener to the *front* of the
+     *     events queue instead of to the end.
+     *    
+     *     TODO: get rid of this in 3.0 - Decide whether listeners should be 
+     *     called in the order they were registered or in reverse order.
+     *
+     *
+     * Parameters:
+     * type - {String} Name of the event to register
+     * obj - {Object} The object to bind the context to for the callback#.
+     *                If no object is specified, default is the Events's 
+     *                'object' property.
+     * func - {Function} The callback function. If no callback is 
+     *                   specified, this function does nothing.
+     */
+    registerPriority: function (type, obj, func) {
+        this.register(type, obj, func, true);
+    },
+    
+    /**
+     * APIMethod: un
+     * Convenience method for unregistering listeners with a common scope.
+     *     Internally, this method calls <unregister> as shown in the examples
+     *     below.
+     *
+     * Example use:
+     * (code)
+     * // unregister a single listener for the "loadstart" event
+     * events.un({"loadstart": loadStartListener});
+     *
+     * // this is equivalent to the following
+     * events.unregister("loadstart", undefined, loadStartListener);
+     *
+     * // unregister multiple listeners with the same `this` object
+     * events.un({
+     *     "loadstart": loadStartListener,
+     *     "loadend": loadEndListener,
+     *     scope: object
+     * });
+     *
+     * // this is equivalent to the following
+     * events.unregister("loadstart", object, loadStartListener);
+     * events.unregister("loadend", object, loadEndListener);
+     * (end)
+     */
+    un: function(object) {
+        for(var type in object) {
+            if(type != "scope" && object.hasOwnProperty(type)) {
+                this.unregister(type, object.scope, object[type]);
+            }
+        }
+    },
+
+    /**
+     * APIMethod: unregister
+     *
+     * Parameters:
+     * type - {String} 
+     * obj - {Object} If none specified, defaults to this.object
+     * func - {Function} 
+     */
+    unregister: function (type, obj, func) {
+        if (obj == null)  {
+            obj = this.object;
+        }
+        var listeners = this.listeners[type];
+        if (listeners != null) {
+            for (var i=0, len=listeners.length; i<len; i++) {
+                if (listeners[i].obj == obj && listeners[i].func == func) {
+                    listeners.splice(i, 1);
+                    break;
+                }
+            }
+        }
+    },
+
+    /** 
+     * Method: remove
+     * Remove all listeners for a given event type. If type is not registered,
+     *     does nothing.
+     *
+     * Parameters:
+     * type - {String} 
+     */
+    remove: function(type) {
+        if (this.listeners[type] != null) {
+            this.listeners[type] = [];
+        }
+    },
+
+    /**
+     * APIMethod: triggerEvent
+     * Trigger a specified registered event.  
+     * 
+     * Parameters:
+     * type - {String} 
+     * evt - {Event || Object} will be passed to the listeners.
+     *
+     * Returns:
+     * {Boolean} The last listener return.  If a listener returns false, the
+     *     chain of listeners will stop getting called.
+     */
+    triggerEvent: function (type, evt) {
+        var listeners = this.listeners[type];
+
+        // fast path
+        if(!listeners || listeners.length == 0) {
+            return undefined;
+        }
+
+        // prep evt object with object & div references
+        if (evt == null) {
+            evt = {};
+        }
+        evt.object = this.object;
+        evt.element = this.element;
+        if(!evt.type) {
+            evt.type = type;
+        }
+    
+        // execute all callbacks registered for specified type
+        // get a clone of the listeners array to
+        // allow for splicing during callbacks
+        listeners = listeners.slice();
+        var continueChain;
+        for (var i=0, len=listeners.length; i<len; i++) {
+            var callback = listeners[i];
+            // bind the context to callback.obj
+            continueChain = callback.func.apply(callback.obj, [evt]);
+
+            if ((continueChain != undefined) && (continueChain == false)) {
+                // if callback returns false, execute no more callbacks.
+                break;
+            }
+        }
+        // don't fall through to other DOM elements
+        if (!this.fallThrough) {           
+            OpenLayers.Event.stop(evt, true);
+        }
+        return continueChain;
+    },
+
+    /**
+     * Method: handleBrowserEvent
+     * Basically just a wrapper to the triggerEvent() function, but takes 
+     *     care to set a property 'xy' on the event with the current mouse 
+     *     position.
+     *
+     * Parameters:
+     * evt - {Event} 
+     */
+    handleBrowserEvent: function (evt) {
+        var type = evt.type, listeners = this.listeners[type];
+        if(!listeners || listeners.length == 0) {
+            // noone's listening, bail out
+            return;
+        }
+        // add clientX & clientY to all events - corresponds to average x, y
+        var touches = evt.touches;
+        if (touches && touches[0]) {
+            var x = 0;
+            var y = 0;
+            var num = touches.length;
+            var touch;
+            for (var i=0; i<num; ++i) {
+                touch = this.getTouchClientXY(touches[i]);
+                x += touch.clientX;
+                y += touch.clientY;
+            }
+            evt.clientX = x / num;
+            evt.clientY = y / num;
+        }
+        if (this.includeXY) {
+            evt.xy = this.getMousePosition(evt);
+        } 
+        this.triggerEvent(type, evt);
+    },
+    
+    /**
+     * Method: getTouchClientXY
+     * WebKit has a few bugs for clientX/clientY. This method detects them
+     * and calculate the correct values.
+     *
+     * Parameters:
+     * evt - {Touch} a Touch object from a TouchEvent
+     * 
+     * Returns:
+     * {Object} An object with only clientX and clientY properties with the
+     * calculated values.
+     */
+    getTouchClientXY: function (evt) {
+        // olMochWin is to override window, used for testing
+        var win = window.olMockWin || window,
+            winPageX = win.pageXOffset,
+            winPageY = win.pageYOffset,
+            x = evt.clientX,
+            y = evt.clientY;
+        
+        if (evt.pageY === 0 && Math.floor(y) > Math.floor(evt.pageY) ||
+            evt.pageX === 0 && Math.floor(x) > Math.floor(evt.pageX)) {
+            // iOS4 include scroll offset in clientX/Y
+            x = x - winPageX;
+            y = y - winPageY;
+        } else if (y < (evt.pageY - winPageY) || x < (evt.pageX - winPageX) ) {
+            // Some Android browsers have totally bogus values for clientX/Y
+            // when scrolling/zooming a page
+            x = evt.pageX - winPageX;
+            y = evt.pageY - winPageY;
+        }
+        
+        evt.olClientX = x;
+        evt.olClientY = y;
+        
+        return {
+            clientX: x,
+            clientY: y
+        };
+    },
+    
+    /**
+     * APIMethod: clearMouseCache
+     * Clear cached data about the mouse position. This should be called any 
+     *     time the element that events are registered on changes position 
+     *     within the page.
+     */
+    clearMouseCache: function() { 
+        this.element.scrolls = null;
+        this.element.lefttop = null;
+        this.element.offsets = null;
+    },      
+
+    /**
+     * Method: getMousePosition
+     * 
+     * Parameters:
+     * evt - {Event} 
+     * 
+     * Returns:
+     * {<OpenLayers.Pixel>} The current xy coordinate of the mouse, adjusted
+     *                      for offsets
+     */
+    getMousePosition: function (evt) {
+        if (!this.includeXY) {
+            this.clearMouseCache();
+        } else if (!this.element.hasScrollEvent) {
+            OpenLayers.Event.observe(window, "scroll", this.clearMouseListener);
+            this.element.hasScrollEvent = true;
+        }
+        
+        if (!this.element.scrolls) {
+            var viewportElement = OpenLayers.Util.getViewportElement();
+            this.element.scrolls = [
+                window.pageXOffset || viewportElement.scrollLeft,
+                window.pageYOffset || viewportElement.scrollTop
+            ];
+        }
+
+        if (!this.element.lefttop) {
+            this.element.lefttop = [
+                (document.documentElement.clientLeft || 0),
+                (document.documentElement.clientTop  || 0)
+            ];
+        }
+        
+        if (!this.element.offsets) {
+            this.element.offsets = OpenLayers.Util.pagePosition(this.element);
+        }
+
+        return new OpenLayers.Pixel(
+            (evt.clientX + this.element.scrolls[0]) - this.element.offsets[0]
+                         - this.element.lefttop[0], 
+            (evt.clientY + this.element.scrolls[1]) - this.element.offsets[1]
+                         - this.element.lefttop[1]
+        ); 
+    },
+
+    /**
+     * Method: addMsTouchListener
+     *
+     * Parameters:
+     * element - {DOMElement} The DOM element to register the listener on
+     * type - {String} The event type
+     * handler - {Function} the handler
+     */
+    addMsTouchListener: function (element, type, handler) {
+        var eventHandler = this.eventHandler;
+        var touches = this._msTouches;
+
+        function msHandler(evt) {
+            handler(OpenLayers.Util.applyDefaults({
+                stopPropagation: function() {
+                    for (var i=touches.length-1; i>=0; --i) {
+                        touches[i].stopPropagation();
+                    }
+                },
+                preventDefault: function() {
+                    for (var i=touches.length-1; i>=0; --i) {
+                        touches[i].preventDefault();
+                    }
+                },
+                type: type
+            }, evt));
+        }
+
+        switch (type) {
+            case 'touchstart':
+                return this.addMsTouchListenerStart(element, type, msHandler);
+            case 'touchend':
+                return this.addMsTouchListenerEnd(element, type, msHandler);
+            case 'touchmove':
+                return this.addMsTouchListenerMove(element, type, msHandler);
+            default:
+                throw 'Unknown touch event type';
+        }
+    },
+
+    /**
+     * Method: addMsTouchListenerStart
+     *
+     * Parameters:
+     * element - {DOMElement} The DOM element to register the listener on
+     * type - {String} The event type
+     * handler - {Function} the handler
+     */
+    addMsTouchListenerStart: function(element, type, handler) {
+        var touches = this._msTouches;
+
+        var cb = function(e) {
+
+            var alreadyInArray = false;
+            for (var i=0, ii=touches.length; i<ii; ++i) {
+                if (touches[i].pointerId == e.pointerId) {
+                    alreadyInArray = true;
+                    break;
+                }
+            }
+            if (!alreadyInArray) {
+                touches.push(e);
+            }
+
+            e.touches = touches.slice();
+            handler(e);
+        };
+
+        OpenLayers.Event.observe(element, 'MSPointerDown', cb);
+
+        // Need to also listen for end events to keep the _msTouches list
+        // accurate
+        var internalCb = function(e) {
+            for (var i=0, ii=touches.length; i<ii; ++i) {
+                if (touches[i].pointerId == e.pointerId) {
+                    touches.splice(i, 1);
+                    break;
+                }
+            }
+        };
+        OpenLayers.Event.observe(element, 'MSPointerUp', internalCb);
+    },
+
+    /**
+     * Method: addMsTouchListenerMove
+     *
+     * Parameters:
+     * element - {DOMElement} The DOM element to register the listener on
+     * type - {String} The event type
+     * handler - {Function} the handler
+     */
+    addMsTouchListenerMove: function (element, type, handler) {
+        var touches = this._msTouches;
+        var cb = function(e) {
+
+            //Don't fire touch moves when mouse isn't down
+            if (e.pointerType == e.MSPOINTER_TYPE_MOUSE && e.buttons == 0) {
+                return;
+            }
+
+            if (touches.length == 1 && touches[0].pageX == e.pageX &&
+                    touches[0].pageY == e.pageY) {
+                // don't trigger event when pointer has not moved
+                return;
+            }
+            for (var i=0, ii=touches.length; i<ii; ++i) {
+                if (touches[i].pointerId == e.pointerId) {
+                    touches[i] = e;
+                    break;
+                }
+            }
+
+            e.touches = touches.slice();
+            handler(e);
+        };
+
+        OpenLayers.Event.observe(element, 'MSPointerMove', cb);
+    },
+
+    /**
+     * Method: addMsTouchListenerEnd
+     *
+     * Parameters:
+     * element - {DOMElement} The DOM element to register the listener on
+     * type - {String} The event type
+     * handler - {Function} the handler
+     */
+    addMsTouchListenerEnd: function (element, type, handler) {
+        var touches = this._msTouches;
+
+        var cb = function(e) {
+
+            for (var i=0, ii=touches.length; i<ii; ++i) {
+                if (touches[i].pointerId == e.pointerId) {
+                    touches.splice(i, 1);
+                    break;
+                }
+            }
+            
+            e.touches = touches.slice();
+            handler(e);
+        };
+
+        OpenLayers.Event.observe(element, 'MSPointerUp', cb);
+    },
+
+    CLASS_NAME: "OpenLayers.Events"
+});
+/* ======================================================================
+    OpenLayers/Events/buttonclick.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Events.js
+ */
+
+/**
+ * Class: OpenLayers.Events.buttonclick
+ * Extension event type for handling buttons on top of a dom element. This
+ *     event type fires "buttonclick" on its <target> when a button was
+ *     clicked. Buttons are detected by the "olButton" class.
+ *
+ * This event type makes sure that button clicks do not interfere with other
+ *     events that are registered on the same <element>.
+ *
+ * Event types provided by this extension:
+ * - *buttonclick* Triggered when a button is clicked. Listeners receive an
+ *     object with a *buttonElement* property referencing the dom element of
+ *     the clicked button, and an *buttonXY* property with the click position
+ *     relative to the button.
+ */
+OpenLayers.Events.buttonclick = OpenLayers.Class({
+    
+    /**
+     * Property: target
+     * {<OpenLayers.Events>} The events instance that the buttonclick event will
+     * be triggered on.
+     */
+    target: null,
+    
+    /**
+     * Property: events
+     * {Array} Events to observe and conditionally stop from propagating when
+     *     an element with the olButton class (or its olAlphaImg child) is
+     *     clicked.
+     */
+    events: [
+        'mousedown', 'mouseup', 'click', 'dblclick',
+        'touchstart', 'touchmove', 'touchend', 'keydown'
+    ],
+    
+    /**
+     * Property: startRegEx
+     * {RegExp} Regular expression to test Event.type for events that start
+     *     a buttonclick sequence.
+     */
+    startRegEx: /^mousedown|touchstart$/,
+
+    /**
+     * Property: cancelRegEx
+     * {RegExp} Regular expression to test Event.type for events that cancel
+     *     a buttonclick sequence.
+     */
+    cancelRegEx: /^touchmove$/,
+
+    /**
+     * Property: completeRegEx
+     * {RegExp} Regular expression to test Event.type for events that complete
+     *     a buttonclick sequence.
+     */
+    completeRegEx: /^mouseup|touchend$/,
+    
+    /**
+     * Property: startEvt
+     * {Event} The event that started the click sequence
+     */
+    
+    /**
+     * Constructor: OpenLayers.Events.buttonclick
+     * Construct a buttonclick event type. Applications are not supposed to
+     *     create instances of this class - they are created on demand by
+     *     <OpenLayers.Events> instances.
+     *
+     * Parameters:
+     * target - {<OpenLayers.Events>} The events instance that the buttonclick
+     *     event will be triggered on.
+     */
+    initialize: function(target) {
+        this.target = target;
+        for (var i=this.events.length-1; i>=0; --i) {
+            this.target.register(this.events[i], this, this.buttonClick, {
+                extension: true
+            });
+        }
+    },
+    
+    /**
+     * Method: destroy
+     */
+    destroy: function() {
+        for (var i=this.events.length-1; i>=0; --i) {
+            this.target.unregister(this.events[i], this, this.buttonClick);
+        }
+        delete this.target;
+    },
+
+    /**
+     * Method: getPressedButton
+     * Get the pressed button, if any. Returns undefined if no button
+     * was pressed.
+     *
+     * Arguments:
+     * element - {DOMElement} The event target.
+     *
+     * Returns:
+     * {DOMElement} The button element, or undefined.
+     */
+    getPressedButton: function(element) {
+        var depth = 3, // limit the search depth
+            button;
+        do {
+            if(OpenLayers.Element.hasClass(element, "olButton")) {
+                // hit!
+                button = element;
+                break;
+            }
+            element = element.parentNode;
+        } while(--depth > 0 && element);
+        return button;
+    },
+    
+    /**
+     * Method: ignore
+     * Check for event target elements that should be ignored by OpenLayers.
+     *
+     * Parameters:
+     * element - {DOMElement} The event target.
+     */
+    ignore: function(element) {
+        var depth = 3,
+            ignore = false;
+        do {
+            if (element.nodeName.toLowerCase() === 'a') {
+                ignore = true;
+                break;
+            }
+            element = element.parentNode;
+        } while (--depth > 0 && element);
+        return ignore;
+    },
+
+    /**
+     * Method: buttonClick
+     * Check if a button was clicked, and fire the buttonclick event
+     *
+     * Parameters:
+     * evt - {Event}
+     */
+    buttonClick: function(evt) {
+        var propagate = true,
+            element = OpenLayers.Event.element(evt);
+        if (element && (OpenLayers.Event.isLeftClick(evt) || !~evt.type.indexOf("mouse"))) {
+            // was a button pressed?
+            var button = this.getPressedButton(element);
+            if (button) {
+                if (evt.type === "keydown") {
+                    switch (evt.keyCode) {
+                    case OpenLayers.Event.KEY_RETURN:
+                    case OpenLayers.Event.KEY_SPACE:
+                        this.target.triggerEvent("buttonclick", {
+                            buttonElement: button
+                        });
+                        OpenLayers.Event.stop(evt);
+                        propagate = false;
+                        break;
+                    }
+                } else if (this.startEvt) {
+                    if (this.completeRegEx.test(evt.type)) {
+                        var pos = OpenLayers.Util.pagePosition(button);
+                        var viewportElement = OpenLayers.Util.getViewportElement();
+                        var scrollTop = window.pageYOffset || viewportElement.scrollTop;
+                        var scrollLeft = window.pageXOffset || viewportElement.scrollLeft;
+                        pos[0] = pos[0] - scrollLeft;
+                        pos[1] = pos[1] - scrollTop;
+                        
+                        this.target.triggerEvent("buttonclick", {
+                            buttonElement: button,
+                            buttonXY: {
+                                x: this.startEvt.clientX - pos[0],
+                                y: this.startEvt.clientY - pos[1]
+                            }
+                        });
+                    }
+                    if (this.cancelRegEx.test(evt.type)) {
+                        delete this.startEvt;
+                    }
+                    OpenLayers.Event.stop(evt);
+                    propagate = false;
+                }
+                if (this.startRegEx.test(evt.type)) {
+                    this.startEvt = evt;
+                    OpenLayers.Event.stop(evt);
+                    propagate = false;
+                }
+            } else {
+                propagate = !this.ignore(OpenLayers.Event.element(evt));
+                delete this.startEvt;
+            }
+        }
+        return propagate;
+    }
+    
+});
+/* ======================================================================
+    OpenLayers/Control.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ */
+
+/**
+ * Class: OpenLayers.Control
+ * Controls affect the display or behavior of the map. They allow everything
+ * from panning and zooming to displaying a scale indicator. Controls by 
+ * default are added to the map they are contained within however it is
+ * possible to add a control to an external div by passing the div in the
+ * options parameter.
+ * 
+ * Example:
+ * The following example shows how to add many of the common controls
+ * to a map.
+ * 
+ * > var map = new OpenLayers.Map('map', { controls: [] });
+ * >
+ * > map.addControl(new OpenLayers.Control.PanZoomBar());
+ * > map.addControl(new OpenLayers.Control.LayerSwitcher({'ascending':false}));
+ * > map.addControl(new OpenLayers.Control.Permalink());
+ * > map.addControl(new OpenLayers.Control.Permalink('permalink'));
+ * > map.addControl(new OpenLayers.Control.MousePosition());
+ * > map.addControl(new OpenLayers.Control.OverviewMap());
+ * > map.addControl(new OpenLayers.Control.KeyboardDefaults());
+ *
+ * The next code fragment is a quick example of how to intercept 
+ * shift-mouse click to display the extent of the bounding box
+ * dragged out by the user.  Usually controls are not created
+ * in exactly this manner.  See the source for a more complete 
+ * example:
+ *
+ * > var control = new OpenLayers.Control();
+ * > OpenLayers.Util.extend(control, {
+ * >     draw: function () {
+ * >         // this Handler.Box will intercept the shift-mousedown
+ * >         // before Control.MouseDefault gets to see it
+ * >         this.box = new OpenLayers.Handler.Box( control, 
+ * >             {"done": this.notice},
+ * >             {keyMask: OpenLayers.Handler.MOD_SHIFT});
+ * >         this.box.activate();
+ * >     },
+ * >
+ * >     notice: function (bounds) {
+ * >         OpenLayers.Console.userError(bounds);
+ * >     }
+ * > }); 
+ * > map.addControl(control);
+ * 
+ */
+OpenLayers.Control = OpenLayers.Class({
+
+    /** 
+     * Property: id 
+     * {String} 
+     */
+    id: null,
+    
+    /** 
+     * Property: map 
+     * {<OpenLayers.Map>} this gets set in the addControl() function in
+     * OpenLayers.Map 
+     */
+    map: null,
+
+    /** 
+     * APIProperty: div 
+     * {DOMElement} The element that contains the control, if not present the 
+     *     control is placed inside the map.
+     */
+    div: null,
+
+    /** 
+     * APIProperty: type 
+     * {Number} Controls can have a 'type'. The type determines the type of
+     * interactions which are possible with them when they are placed in an
+     * <OpenLayers.Control.Panel>. 
+     */
+    type: null, 
+
+    /** 
+     * Property: allowSelection
+     * {Boolean} By default, controls do not allow selection, because
+     * it may interfere with map dragging. If this is true, OpenLayers
+     * will not prevent selection of the control.
+     * Default is false.
+     */
+    allowSelection: false,  
+
+    /** 
+     * Property: displayClass 
+     * {string}  This property is used for CSS related to the drawing of the
+     * Control. 
+     */
+    displayClass: "",
+    
+    /**
+    * APIProperty: title  
+    * {string}  This property is used for showing a tooltip over the  
+    * Control.  
+    */ 
+    title: "",
+
+    /**
+     * APIProperty: autoActivate
+     * {Boolean} Activate the control when it is added to a map.  Default is
+     *     false.
+     */
+    autoActivate: false,
+
+    /** 
+     * APIProperty: active 
+     * {Boolean} The control is active (read-only).  Use <activate> and 
+     *     <deactivate> to change control state.
+     */
+    active: null,
+
+    /**
+     * Property: handlerOptions
+     * {Object} Used to set non-default properties on the control's handler
+     */
+    handlerOptions: null,
+
+    /** 
+     * Property: handler 
+     * {<OpenLayers.Handler>} null
+     */
+    handler: null,
+
+    /**
+     * APIProperty: eventListeners
+     * {Object} If set as an option at construction, the eventListeners
+     *     object will be registered with <OpenLayers.Events.on>.  Object
+     *     structure must be a listeners object as shown in the example for
+     *     the events.on method.
+     */
+    eventListeners: null,
+
+    /** 
+     * APIProperty: events
+     * {<OpenLayers.Events>} Events instance for listeners and triggering
+     *     control specific events.
+     *
+     * Register a listener for a particular event with the following syntax:
+     * (code)
+     * control.events.register(type, obj, listener);
+     * (end)
+     *
+     * Listeners will be called with a reference to an event object.  The
+     *     properties of this event depends on exactly what happened.
+     *
+     * All event objects have at least the following properties:
+     * object - {Object} A reference to control.events.object (a reference
+     *      to the control).
+     * element - {DOMElement} A reference to control.events.element (which
+     *      will be null unless documented otherwise).
+     *
+     * Supported map event types:
+     * activate - Triggered when activated.
+     * deactivate - Triggered when deactivated.
+     */
+    events: null,
+
+    /**
+     * Constructor: OpenLayers.Control
+     * Create an OpenLayers Control.  The options passed as a parameter
+     * directly extend the control.  For example passing the following:
+     * 
+     * > var control = new OpenLayers.Control({div: myDiv});
+     *
+     * Overrides the default div attribute value of null.
+     * 
+     * Parameters:
+     * options - {Object} 
+     */
+    initialize: function (options) {
+        // We do this before the extend so that instances can override
+        // className in options.
+        this.displayClass = 
+            this.CLASS_NAME.replace("OpenLayers.", "ol").replace(/\./g, "");
+        
+        OpenLayers.Util.extend(this, options);
+        
+        this.events = new OpenLayers.Events(this);
+        if(this.eventListeners instanceof Object) {
+            this.events.on(this.eventListeners);
+        }
+        if (this.id == null) {
+            this.id = OpenLayers.Util.createUniqueID(this.CLASS_NAME + "_");
+        }
+    },
+
+    /**
+     * Method: destroy
+     * The destroy method is used to perform any clean up before the control
+     * is dereferenced.  Typically this is where event listeners are removed
+     * to prevent memory leaks.
+     */
+    destroy: function () {
+        if(this.events) {
+            if(this.eventListeners) {
+                this.events.un(this.eventListeners);
+            }
+            this.events.destroy();
+            this.events = null;
+        }
+        this.eventListeners = null;
+
+        // eliminate circular references
+        if (this.handler) {
+            this.handler.destroy();
+            this.handler = null;
+        }
+        if(this.handlers) {
+            for(var key in this.handlers) {
+                if(this.handlers.hasOwnProperty(key) &&
+                   typeof this.handlers[key].destroy == "function") {
+                    this.handlers[key].destroy();
+                }
+            }
+            this.handlers = null;
+        }
+        if (this.map) {
+            this.map.removeControl(this);
+            this.map = null;
+        }
+        this.div = null;
+    },
+
+    /** 
+     * Method: setMap
+     * Set the map property for the control. This is done through an accessor
+     * so that subclasses can override this and take special action once 
+     * they have their map variable set. 
+     *
+     * Parameters:
+     * map - {<OpenLayers.Map>} 
+     */
+    setMap: function(map) {
+        this.map = map;
+        if (this.handler) {
+            this.handler.setMap(map);
+        }
+    },
+  
+    /**
+     * Method: draw
+     * The draw method is called when the control is ready to be displayed
+     * on the page.  If a div has not been created one is created.  Controls
+     * with a visual component will almost always want to override this method 
+     * to customize the look of control. 
+     *
+     * Parameters:
+     * px - {<OpenLayers.Pixel>} The top-left pixel position of the control
+     *      or null.
+     *
+     * Returns:
+     * {DOMElement} A reference to the DIV DOMElement containing the control
+     */
+    draw: function (px) {
+        if (this.div == null) {
+            this.div = OpenLayers.Util.createDiv(this.id);
+            this.div.className = this.displayClass;
+            if (!this.allowSelection) {
+                this.div.className += " olControlNoSelect";
+                this.div.setAttribute("unselectable", "on", 0);
+                this.div.onselectstart = OpenLayers.Function.False; 
+            }    
+            if (this.title != "") {
+                this.div.title = this.title;
+            }
+        }
+        if (px != null) {
+            this.position = px.clone();
+        }
+        this.moveTo(this.position);
+        return this.div;
+    },
+
+    /**
+     * Method: moveTo
+     * Sets the left and top style attributes to the passed in pixel 
+     * coordinates.
+     *
+     * Parameters:
+     * px - {<OpenLayers.Pixel>}
+     */
+    moveTo: function (px) {
+        if ((px != null) && (this.div != null)) {
+            this.div.style.left = px.x + "px";
+            this.div.style.top = px.y + "px";
+        }
+    },
+
+    /**
+     * APIMethod: activate
+     * Explicitly activates a control and it's associated
+     * handler if one has been set.  Controls can be
+     * deactivated by calling the deactivate() method.
+     * 
+     * Returns:
+     * {Boolean}  True if the control was successfully activated or
+     *            false if the control was already active.
+     */
+    activate: function () {
+        if (this.active) {
+            return false;
+        }
+        if (this.handler) {
+            this.handler.activate();
+        }
+        this.active = true;
+        if(this.map) {
+            OpenLayers.Element.addClass(
+                this.map.viewPortDiv,
+                this.displayClass.replace(/ /g, "") + "Active"
+            );
+        }
+        this.events.triggerEvent("activate");
+        return true;
+    },
+    
+    /**
+     * APIMethod: deactivate
+     * Deactivates a control and it's associated handler if any.  The exact
+     * effect of this depends on the control itself.
+     * 
+     * Returns:
+     * {Boolean} True if the control was effectively deactivated or false
+     *           if the control was already inactive.
+     */
+    deactivate: function () {
+        if (this.active) {
+            if (this.handler) {
+                this.handler.deactivate();
+            }
+            this.active = false;
+            if(this.map) {
+                OpenLayers.Element.removeClass(
+                    this.map.viewPortDiv,
+                    this.displayClass.replace(/ /g, "") + "Active"
+                );
+            }
+            this.events.triggerEvent("deactivate");
+            return true;
+        }
+        return false;
+    },
+
+    CLASS_NAME: "OpenLayers.Control"
+});
+
+/**
+ * Constant: OpenLayers.Control.TYPE_BUTTON
+ */
+OpenLayers.Control.TYPE_BUTTON = 1;
+
+/**
+ * Constant: OpenLayers.Control.TYPE_TOGGLE
+ */
+OpenLayers.Control.TYPE_TOGGLE = 2;
+
+/**
+ * Constant: OpenLayers.Control.TYPE_TOOL
+ */
+OpenLayers.Control.TYPE_TOOL   = 3;
+/* ======================================================================
+    OpenLayers/Geometry.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+ 
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ */
+
+/**
+ * Class: OpenLayers.Geometry
+ * A Geometry is a description of a geographic object.  Create an instance of
+ * this class with the <OpenLayers.Geometry> constructor.  This is a base class,
+ * typical geometry types are described by subclasses of this class.
+ *
+ * Note that if you use the <OpenLayers.Geometry.fromWKT> method, you must
+ * explicitly include the OpenLayers.Format.WKT in your build.
+ */
+OpenLayers.Geometry = OpenLayers.Class({
+
+    /**
+     * Property: id
+     * {String} A unique identifier for this geometry.
+     */
+    id: null,
+
+    /**
+     * Property: parent
+     * {<OpenLayers.Geometry>}This is set when a Geometry is added as component
+     * of another geometry
+     */
+    parent: null,
+
+    /**
+     * Property: bounds 
+     * {<OpenLayers.Bounds>} The bounds of this geometry
+     */
+    bounds: null,
+
+    /**
+     * Constructor: OpenLayers.Geometry
+     * Creates a geometry object.  
+     */
+    initialize: function() {
+        this.id = OpenLayers.Util.createUniqueID(this.CLASS_NAME+ "_");
+    },
+    
+    /**
+     * Method: destroy
+     * Destroy this geometry.
+     */
+    destroy: function() {
+        this.id = null;
+        this.bounds = null;
+    },
+    
+    /**
+     * APIMethod: clone
+     * Create a clone of this geometry.  Does not set any non-standard
+     *     properties of the cloned geometry.
+     * 
+     * Returns:
+     * {<OpenLayers.Geometry>} An exact clone of this geometry.
+     */
+    clone: function() {
+        return new OpenLayers.Geometry();
+    },
+    
+    /**
+     * Method: setBounds
+     * Set the bounds for this Geometry.
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>} 
+     */
+    setBounds: function(bounds) {
+        if (bounds) {
+            this.bounds = bounds.clone();
+        }
+    },
+    
+    /**
+     * Method: clearBounds
+     * Nullify this components bounds and that of its parent as well.
+     */
+    clearBounds: function() {
+        this.bounds = null;
+        if (this.parent) {
+            this.parent.clearBounds();
+        }    
+    },
+    
+    /**
+     * Method: extendBounds
+     * Extend the existing bounds to include the new bounds. 
+     * If geometry's bounds is not yet set, then set a new Bounds.
+     * 
+     * Parameters:
+     * newBounds - {<OpenLayers.Bounds>} 
+     */
+    extendBounds: function(newBounds){
+        var bounds = this.getBounds();
+        if (!bounds) {
+            this.setBounds(newBounds);
+        } else {
+            this.bounds.extend(newBounds);
+        }
+    },
+    
+    /**
+     * APIMethod: getBounds
+     * Get the bounds for this Geometry. If bounds is not set, it 
+     * is calculated again, this makes queries faster.
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>}
+     */
+    getBounds: function() {
+        if (this.bounds == null) {
+            this.calculateBounds();
+        }
+        return this.bounds;
+    },
+    
+    /** 
+     * APIMethod: calculateBounds
+     * Recalculate the bounds for the geometry. 
+     */
+    calculateBounds: function() {
+        //
+        // This should be overridden by subclasses.
+        //
+    },
+    
+    /**
+     * APIMethod: distanceTo
+     * Calculate the closest distance between two geometries (on the x-y plane).
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} The target geometry.
+     * options - {Object} Optional properties for configuring the distance
+     *     calculation.
+     *
+     * Valid options depend on the specific geometry type.
+     * 
+     * Returns:
+     * {Number | Object} The distance between this geometry and the target.
+     *     If details is true, the return will be an object with distance,
+     *     x0, y0, x1, and x2 properties.  The x0 and y0 properties represent
+     *     the coordinates of the closest point on this geometry. The x1 and y1
+     *     properties represent the coordinates of the closest point on the
+     *     target geometry.
+     */
+    distanceTo: function(geometry, options) {
+    },
+    
+    /**
+     * APIMethod: getVertices
+     * Return a list of all points in this geometry.
+     *
+     * Parameters:
+     * nodes - {Boolean} For lines, only return vertices that are
+     *     endpoints.  If false, for lines, only vertices that are not
+     *     endpoints will be returned.  If not provided, all vertices will
+     *     be returned.
+     *
+     * Returns:
+     * {Array} A list of all vertices in the geometry.
+     */
+    getVertices: function(nodes) {
+    },
+
+    /**
+     * Method: atPoint
+     * Note - This is only an approximation based on the bounds of the 
+     * geometry.
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>|Object} OpenLayers.LonLat or an
+     *     object with a 'lon' and 'lat' properties.
+     * toleranceLon - {float} Optional tolerance in Geometric Coords
+     * toleranceLat - {float} Optional tolerance in Geographic Coords
+     * 
+     * Returns:
+     * {Boolean} Whether or not the geometry is at the specified location
+     */
+    atPoint: function(lonlat, toleranceLon, toleranceLat) {
+        var atPoint = false;
+        var bounds = this.getBounds();
+        if ((bounds != null) && (lonlat != null)) {
+
+            var dX = (toleranceLon != null) ? toleranceLon : 0;
+            var dY = (toleranceLat != null) ? toleranceLat : 0;
+    
+            var toleranceBounds = 
+                new OpenLayers.Bounds(this.bounds.left - dX,
+                                      this.bounds.bottom - dY,
+                                      this.bounds.right + dX,
+                                      this.bounds.top + dY);
+
+            atPoint = toleranceBounds.containsLonLat(lonlat);
+        }
+        return atPoint;
+    },
+    
+    /**
+     * Method: getLength
+     * Calculate the length of this geometry. This method is defined in
+     * subclasses.
+     * 
+     * Returns:
+     * {Float} The length of the collection by summing its parts
+     */
+    getLength: function() {
+        //to be overridden by geometries that actually have a length
+        //
+        return 0.0;
+    },
+
+    /**
+     * Method: getArea
+     * Calculate the area of this geometry. This method is defined in subclasses.
+     * 
+     * Returns:
+     * {Float} The area of the collection by summing its parts
+     */
+    getArea: function() {
+        //to be overridden by geometries that actually have an area
+        //
+        return 0.0;
+    },
+    
+    /**
+     * APIMethod: getCentroid
+     * Calculate the centroid of this geometry. This method is defined in subclasses.
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.Point>} The centroid of the collection
+     */
+    getCentroid: function() {
+        return null;
+    },
+
+    /**
+     * Method: toString
+     * Returns a text representation of the geometry.  If the WKT format is
+     *     included in a build, this will be the Well-Known Text 
+     *     representation.
+     *
+     * Returns:
+     * {String} String representation of this geometry.
+     */
+    toString: function() {
+        var string;
+        if (OpenLayers.Format && OpenLayers.Format.WKT) {
+            string = OpenLayers.Format.WKT.prototype.write(
+                new OpenLayers.Feature.Vector(this)
+            );
+        } else {
+            string = Object.prototype.toString.call(this);
+        }
+        return string;
+    },
+
+    CLASS_NAME: "OpenLayers.Geometry"
+});
+
+/**
+ * Function: OpenLayers.Geometry.fromWKT
+ * Generate a geometry given a Well-Known Text string.  For this method to
+ *     work, you must include the OpenLayers.Format.WKT in your build 
+ *     explicitly.
+ *
+ * Parameters:
+ * wkt - {String} A string representing the geometry in Well-Known Text.
+ *
+ * Returns:
+ * {<OpenLayers.Geometry>} A geometry of the appropriate class.
+ */
+OpenLayers.Geometry.fromWKT = function(wkt) {
+    var geom;
+    if (OpenLayers.Format && OpenLayers.Format.WKT) {
+        var format = OpenLayers.Geometry.fromWKT.format;
+        if (!format) {
+            format = new OpenLayers.Format.WKT();
+            OpenLayers.Geometry.fromWKT.format = format;
+        }
+        var result = format.read(wkt);
+        if (result instanceof OpenLayers.Feature.Vector) {
+            geom = result.geometry;
+        } else if (OpenLayers.Util.isArray(result)) {
+            var len = result.length;
+            var components = new Array(len);
+            for (var i=0; i<len; ++i) {
+                components[i] = result[i].geometry;
+            }
+            geom = new OpenLayers.Geometry.Collection(components);
+        }
+    }
+    return geom;
+};
+    
+/**
+ * Method: OpenLayers.Geometry.segmentsIntersect
+ * Determine whether two line segments intersect.  Optionally calculates
+ *     and returns the intersection point.  This function is optimized for
+ *     cases where seg1.x2 >= seg2.x1 || seg2.x2 >= seg1.x1.  In those
+ *     obvious cases where there is no intersection, the function should
+ *     not be called.
+ *
+ * Parameters:
+ * seg1 - {Object} Object representing a segment with properties x1, y1, x2,
+ *     and y2.  The start point is represented by x1 and y1.  The end point
+ *     is represented by x2 and y2.  Start and end are ordered so that x1 < x2.
+ * seg2 - {Object} Object representing a segment with properties x1, y1, x2,
+ *     and y2.  The start point is represented by x1 and y1.  The end point
+ *     is represented by x2 and y2.  Start and end are ordered so that x1 < x2.
+ * options - {Object} Optional properties for calculating the intersection.
+ *
+ * Valid options:
+ * point - {Boolean} Return the intersection point.  If false, the actual
+ *     intersection point will not be calculated.  If true and the segments
+ *     intersect, the intersection point will be returned.  If true and
+ *     the segments do not intersect, false will be returned.  If true and
+ *     the segments are coincident, true will be returned.
+ * tolerance - {Number} If a non-null value is provided, if the segments are
+ *     within the tolerance distance, this will be considered an intersection.
+ *     In addition, if the point option is true and the calculated intersection
+ *     is within the tolerance distance of an end point, the endpoint will be
+ *     returned instead of the calculated intersection.  Further, if the
+ *     intersection is within the tolerance of endpoints on both segments, or
+ *     if two segment endpoints are within the tolerance distance of eachother
+ *     (but no intersection is otherwise calculated), an endpoint on the
+ *     first segment provided will be returned.
+ *
+ * Returns:
+ * {Boolean | <OpenLayers.Geometry.Point>}  The two segments intersect.
+ *     If the point argument is true, the return will be the intersection
+ *     point or false if none exists.  If point is true and the segments
+ *     are coincident, return will be true (and the instersection is equal
+ *     to the shorter segment).
+ */
+OpenLayers.Geometry.segmentsIntersect = function(seg1, seg2, options) {
+    var point = options && options.point;
+    var tolerance = options && options.tolerance;
+    var intersection = false;
+    var x11_21 = seg1.x1 - seg2.x1;
+    var y11_21 = seg1.y1 - seg2.y1;
+    var x12_11 = seg1.x2 - seg1.x1;
+    var y12_11 = seg1.y2 - seg1.y1;
+    var y22_21 = seg2.y2 - seg2.y1;
+    var x22_21 = seg2.x2 - seg2.x1;
+    var d = (y22_21 * x12_11) - (x22_21 * y12_11);
+    var n1 = (x22_21 * y11_21) - (y22_21 * x11_21);
+    var n2 = (x12_11 * y11_21) - (y12_11 * x11_21);
+    if(d == 0) {
+        // parallel
+        if(n1 == 0 && n2 == 0) {
+            // coincident
+            intersection = true;
+        }
+    } else {
+        var along1 = n1 / d;
+        var along2 = n2 / d;
+        if(along1 >= 0 && along1 <= 1 && along2 >=0 && along2 <= 1) {
+            // intersect
+            if(!point) {
+                intersection = true;
+            } else {
+                // calculate the intersection point
+                var x = seg1.x1 + (along1 * x12_11);
+                var y = seg1.y1 + (along1 * y12_11);
+                intersection = new OpenLayers.Geometry.Point(x, y);
+            }
+        }
+    }
+    if(tolerance) {
+        var dist;
+        if(intersection) {
+            if(point) {
+                var segs = [seg1, seg2];
+                var seg, x, y;
+                // check segment endpoints for proximity to intersection
+                // set intersection to first endpoint within the tolerance
+                outer: for(var i=0; i<2; ++i) {
+                    seg = segs[i];
+                    for(var j=1; j<3; ++j) {
+                        x = seg["x" + j];
+                        y = seg["y" + j];
+                        dist = Math.sqrt(
+                            Math.pow(x - intersection.x, 2) +
+                            Math.pow(y - intersection.y, 2)
+                        );
+                        if(dist < tolerance) {
+                            intersection.x = x;
+                            intersection.y = y;
+                            break outer;
+                        }
+                    }
+                }
+                
+            }
+        } else {
+            // no calculated intersection, but segments could be within
+            // the tolerance of one another
+            var segs = [seg1, seg2];
+            var source, target, x, y, p, result;
+            // check segment endpoints for proximity to intersection
+            // set intersection to first endpoint within the tolerance
+            outer: for(var i=0; i<2; ++i) {
+                source = segs[i];
+                target = segs[(i+1)%2];
+                for(var j=1; j<3; ++j) {
+                    p = {x: source["x"+j], y: source["y"+j]};
+                    result = OpenLayers.Geometry.distanceToSegment(p, target);
+                    if(result.distance < tolerance) {
+                        if(point) {
+                            intersection = new OpenLayers.Geometry.Point(p.x, p.y);
+                        } else {
+                            intersection = true;
+                        }
+                        break outer;
+                    }
+                }
+            }
+        }
+    }
+    return intersection;
+};
+
+/**
+ * Function: OpenLayers.Geometry.distanceToSegment
+ *
+ * Parameters:
+ * point - {Object} An object with x and y properties representing the
+ *     point coordinates.
+ * segment - {Object} An object with x1, y1, x2, and y2 properties
+ *     representing endpoint coordinates.
+ *
+ * Returns:
+ * {Object} An object with distance, along, x, and y properties.  The distance
+ *     will be the shortest distance between the input point and segment.
+ *     The x and y properties represent the coordinates along the segment
+ *     where the shortest distance meets the segment. The along attribute
+ *     describes how far between the two segment points the given point is.
+ */
+OpenLayers.Geometry.distanceToSegment = function(point, segment) {
+    var result = OpenLayers.Geometry.distanceSquaredToSegment(point, segment);
+    result.distance = Math.sqrt(result.distance);
+    return result;
+};
+
+/**
+ * Function: OpenLayers.Geometry.distanceSquaredToSegment
+ *
+ * Usually the distanceToSegment function should be used. This variant however
+ * can be used for comparisons where the exact distance is not important.
+ *
+ * Parameters:
+ * point - {Object} An object with x and y properties representing the
+ *     point coordinates.
+ * segment - {Object} An object with x1, y1, x2, and y2 properties
+ *     representing endpoint coordinates.
+ *
+ * Returns:
+ * {Object} An object with squared distance, along, x, and y properties.
+ *     The distance will be the shortest distance between the input point and
+ *     segment. The x and y properties represent the coordinates along the
+ *     segment where the shortest distance meets the segment. The along
+ *     attribute describes how far between the two segment points the given
+ *     point is.
+ */
+OpenLayers.Geometry.distanceSquaredToSegment = function(point, segment) {
+    var x0 = point.x;
+    var y0 = point.y;
+    var x1 = segment.x1;
+    var y1 = segment.y1;
+    var x2 = segment.x2;
+    var y2 = segment.y2;
+    var dx = x2 - x1;
+    var dy = y2 - y1;
+    var along = ((dx * (x0 - x1)) + (dy * (y0 - y1))) /
+                (Math.pow(dx, 2) + Math.pow(dy, 2));
+    var x, y;
+    if(along <= 0.0) {
+        x = x1;
+        y = y1;
+    } else if(along >= 1.0) {
+        x = x2;
+        y = y2;
+    } else {
+        x = x1 + along * dx;
+        y = y1 + along * dy;
+    }
+    return {
+        distance: Math.pow(x - x0, 2) + Math.pow(y - y0, 2),
+        x: x, y: y,
+        along: along
+    };
+};
+/* ======================================================================
+    OpenLayers/Geometry/Collection.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Geometry.js
+ */
+
+/**
+ * Class: OpenLayers.Geometry.Collection
+ * A Collection is exactly what it sounds like: A collection of different 
+ * Geometries. These are stored in the local parameter <components> (which
+ * can be passed as a parameter to the constructor). 
+ * 
+ * As new geometries are added to the collection, they are NOT cloned. 
+ * When removing geometries, they need to be specified by reference (ie you 
+ * have to pass in the *exact* geometry to be removed).
+ * 
+ * The <getArea> and <getLength> functions here merely iterate through
+ * the components, summing their respective areas and lengths.
+ *
+ * Create a new instance with the <OpenLayers.Geometry.Collection> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Geometry> 
+ */
+OpenLayers.Geometry.Collection = OpenLayers.Class(OpenLayers.Geometry, {
+
+    /**
+     * APIProperty: components
+     * {Array(<OpenLayers.Geometry>)} The component parts of this geometry
+     */
+    components: null,
+    
+    /**
+     * Property: componentTypes
+     * {Array(String)} An array of class names representing the types of
+     * components that the collection can include.  A null value means the
+     * component types are not restricted.
+     */
+    componentTypes: null,
+
+    /**
+     * Constructor: OpenLayers.Geometry.Collection
+     * Creates a Geometry Collection -- a list of geoms.
+     *
+     * Parameters: 
+     * components - {Array(<OpenLayers.Geometry>)} Optional array of geometries
+     *
+     */
+    initialize: function (components) {
+        OpenLayers.Geometry.prototype.initialize.apply(this, arguments);
+        this.components = [];
+        if (components != null) {
+            this.addComponents(components);
+        }
+    },
+
+    /**
+     * APIMethod: destroy
+     * Destroy this geometry.
+     */
+    destroy: function () {
+        this.components.length = 0;
+        this.components = null;
+        OpenLayers.Geometry.prototype.destroy.apply(this, arguments);
+    },
+
+    /**
+     * APIMethod: clone
+     * Clone this geometry.
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.Collection>} An exact clone of this collection
+     */
+    clone: function() {
+        var geometry = eval("new " + this.CLASS_NAME + "()");
+        for(var i=0, len=this.components.length; i<len; i++) {
+            geometry.addComponent(this.components[i].clone());
+        }
+        
+        // catch any randomly tagged-on properties
+        OpenLayers.Util.applyDefaults(geometry, this);
+        
+        return geometry;
+    },
+
+    /**
+     * Method: getComponentsString
+     * Get a string representing the components for this collection
+     * 
+     * Returns:
+     * {String} A string representation of the components of this geometry
+     */
+    getComponentsString: function(){
+        var strings = [];
+        for(var i=0, len=this.components.length; i<len; i++) {
+            strings.push(this.components[i].toShortString()); 
+        }
+        return strings.join(",");
+    },
+
+    /**
+     * APIMethod: calculateBounds
+     * Recalculate the bounds by iterating through the components and 
+     * calling calling extendBounds() on each item.
+     */
+    calculateBounds: function() {
+        this.bounds = null;
+        var bounds = new OpenLayers.Bounds();
+        var components = this.components;
+        if (components) {
+            for (var i=0, len=components.length; i<len; i++) {
+                bounds.extend(components[i].getBounds());
+            }
+        }
+        // to preserve old behavior, we only set bounds if non-null
+        // in the future, we could add bounds.isEmpty()
+        if (bounds.left != null && bounds.bottom != null && 
+            bounds.right != null && bounds.top != null) {
+            this.setBounds(bounds);
+        }
+    },
+
+    /**
+     * APIMethod: addComponents
+     * Add components to this geometry.
+     *
+     * Parameters:
+     * components - {Array(<OpenLayers.Geometry>)} An array of geometries to add
+     */
+    addComponents: function(components){
+        if(!(OpenLayers.Util.isArray(components))) {
+            components = [components];
+        }
+        for(var i=0, len=components.length; i<len; i++) {
+            this.addComponent(components[i]);
+        }
+    },
+
+    /**
+     * Method: addComponent
+     * Add a new component (geometry) to the collection.  If this.componentTypes
+     * is set, then the component class name must be in the componentTypes array.
+     *
+     * The bounds cache is reset.
+     * 
+     * Parameters:
+     * component - {<OpenLayers.Geometry>} A geometry to add
+     * index - {int} Optional index into the array to insert the component
+     *
+     * Returns:
+     * {Boolean} The component geometry was successfully added
+     */    
+    addComponent: function(component, index) {
+        var added = false;
+        if(component) {
+            if(this.componentTypes == null ||
+               (OpenLayers.Util.indexOf(this.componentTypes,
+                                        component.CLASS_NAME) > -1)) {
+
+                if(index != null && (index < this.components.length)) {
+                    var components1 = this.components.slice(0, index);
+                    var components2 = this.components.slice(index, 
+                                                           this.components.length);
+                    components1.push(component);
+                    this.components = components1.concat(components2);
+                } else {
+                    this.components.push(component);
+                }
+                component.parent = this;
+                this.clearBounds();
+                added = true;
+            }
+        }
+        return added;
+    },
+    
+    /**
+     * APIMethod: removeComponents
+     * Remove components from this geometry.
+     *
+     * Parameters:
+     * components - {Array(<OpenLayers.Geometry>)} The components to be removed
+     *
+     * Returns: 
+     * {Boolean} A component was removed.
+     */
+    removeComponents: function(components) {
+        var removed = false;
+
+        if(!(OpenLayers.Util.isArray(components))) {
+            components = [components];
+        }
+        for(var i=components.length-1; i>=0; --i) {
+            removed = this.removeComponent(components[i]) || removed;
+        }
+        return removed;
+    },
+    
+    /**
+     * Method: removeComponent
+     * Remove a component from this geometry.
+     *
+     * Parameters:
+     * component - {<OpenLayers.Geometry>} 
+     *
+     * Returns: 
+     * {Boolean} The component was removed.
+     */
+    removeComponent: function(component) {
+        
+        OpenLayers.Util.removeItem(this.components, component);
+        
+        // clearBounds() so that it gets recalculated on the next call
+        // to this.getBounds();
+        this.clearBounds();
+        return true;
+    },
+
+    /**
+     * APIMethod: getLength
+     * Calculate the length of this geometry
+     *
+     * Returns:
+     * {Float} The length of the geometry
+     */
+    getLength: function() {
+        var length = 0.0;
+        for (var i=0, len=this.components.length; i<len; i++) {
+            length += this.components[i].getLength();
+        }
+        return length;
+    },
+    
+    /**
+     * APIMethod: getArea
+     * Calculate the area of this geometry. Note how this function is overridden
+     * in <OpenLayers.Geometry.Polygon>.
+     *
+     * Returns:
+     * {Float} The area of the collection by summing its parts
+     */
+    getArea: function() {
+        var area = 0.0;
+        for (var i=0, len=this.components.length; i<len; i++) {
+            area += this.components[i].getArea();
+        }
+        return area;
+    },
+
+    /** 
+     * APIMethod: getGeodesicArea
+     * Calculate the approximate area of the polygon were it projected onto
+     *     the earth.
+     *
+     * Parameters:
+     * projection - {<OpenLayers.Projection>} The spatial reference system
+     *     for the geometry coordinates.  If not provided, Geographic/WGS84 is
+     *     assumed.
+     * 
+     * Reference:
+     * Robert. G. Chamberlain and William H. Duquette, "Some Algorithms for
+     *     Polygons on a Sphere", JPL Publication 07-03, Jet Propulsion
+     *     Laboratory, Pasadena, CA, June 2007 http://trs-new.jpl.nasa.gov/dspace/handle/2014/40409
+     *
+     * Returns:
+     * {float} The approximate geodesic area of the geometry in square meters.
+     */
+    getGeodesicArea: function(projection) {
+        var area = 0.0;
+        for(var i=0, len=this.components.length; i<len; i++) {
+            area += this.components[i].getGeodesicArea(projection);
+        }
+        return area;
+    },
+    
+    /**
+     * APIMethod: getCentroid
+     *
+     * Compute the centroid for this geometry collection.
+     *
+     * Parameters:
+     * weighted - {Boolean} Perform the getCentroid computation recursively,
+     * returning an area weighted average of all geometries in this collection.
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.Point>} The centroid of the collection
+     */
+    getCentroid: function(weighted) {
+        if (!weighted) {
+            return this.components.length && this.components[0].getCentroid();
+        }
+        var len = this.components.length;
+        if (!len) {
+            return false;
+        }
+        
+        var areas = [];
+        var centroids = [];
+        var areaSum = 0;
+        var minArea = Number.MAX_VALUE;
+        var component;
+        for (var i=0; i<len; ++i) {
+            component = this.components[i];
+            var area = component.getArea();
+            var centroid = component.getCentroid(true);
+            if (isNaN(area) || isNaN(centroid.x) || isNaN(centroid.y)) {
+                continue;
+            }
+            areas.push(area);
+            areaSum += area;
+            minArea = (area < minArea && area > 0) ? area : minArea;
+            centroids.push(centroid);
+        }
+        len = areas.length;
+        if (areaSum === 0) {
+            // all the components in this collection have 0 area
+            // probably a collection of points -- weight all the points the same
+            for (var i=0; i<len; ++i) {
+                areas[i] = 1;
+            }
+            areaSum = areas.length;
+        } else {
+            // normalize all the areas where the smallest area will get
+            // a value of 1
+            for (var i=0; i<len; ++i) {
+                areas[i] /= minArea;
+            }
+            areaSum /= minArea;
+        }
+        
+        var xSum = 0, ySum = 0, centroid, area;
+        for (var i=0; i<len; ++i) {
+            centroid = centroids[i];
+            area = areas[i];
+            xSum += centroid.x * area;
+            ySum += centroid.y * area;
+        }
+        
+        return new OpenLayers.Geometry.Point(xSum/areaSum, ySum/areaSum);
+    },
+
+    /**
+     * APIMethod: getGeodesicLength
+     * Calculate the approximate length of the geometry were it projected onto
+     *     the earth.
+     *
+     * projection - {<OpenLayers.Projection>} The spatial reference system
+     *     for the geometry coordinates.  If not provided, Geographic/WGS84 is
+     *     assumed.
+     * 
+     * Returns:
+     * {Float} The appoximate geodesic length of the geometry in meters.
+     */
+    getGeodesicLength: function(projection) {
+        var length = 0.0;
+        for(var i=0, len=this.components.length; i<len; i++) {
+            length += this.components[i].getGeodesicLength(projection);
+        }
+        return length;
+    },
+
+    /**
+     * APIMethod: move
+     * Moves a geometry by the given displacement along positive x and y axes.
+     *     This modifies the position of the geometry and clears the cached
+     *     bounds.
+     *
+     * Parameters:
+     * x - {Float} Distance to move geometry in positive x direction. 
+     * y - {Float} Distance to move geometry in positive y direction.
+     */
+    move: function(x, y) {
+        for(var i=0, len=this.components.length; i<len; i++) {
+            this.components[i].move(x, y);
+        }
+    },
+
+    /**
+     * APIMethod: rotate
+     * Rotate a geometry around some origin
+     *
+     * Parameters:
+     * angle - {Float} Rotation angle in degrees (measured counterclockwise
+     *                 from the positive x-axis)
+     * origin - {<OpenLayers.Geometry.Point>} Center point for the rotation
+     */
+    rotate: function(angle, origin) {
+        for(var i=0, len=this.components.length; i<len; ++i) {
+            this.components[i].rotate(angle, origin);
+        }
+    },
+
+    /**
+     * APIMethod: resize
+     * Resize a geometry relative to some origin.  Use this method to apply
+     *     a uniform scaling to a geometry.
+     *
+     * Parameters:
+     * scale - {Float} Factor by which to scale the geometry.  A scale of 2
+     *                 doubles the size of the geometry in each dimension
+     *                 (lines, for example, will be twice as long, and polygons
+     *                 will have four times the area).
+     * origin - {<OpenLayers.Geometry.Point>} Point of origin for resizing
+     * ratio - {Float} Optional x:y ratio for resizing.  Default ratio is 1.
+     * 
+     * Returns:
+     * {<OpenLayers.Geometry>} - The current geometry. 
+     */
+    resize: function(scale, origin, ratio) {
+        for(var i=0; i<this.components.length; ++i) {
+            this.components[i].resize(scale, origin, ratio);
+        }
+        return this;
+    },
+
+    /**
+     * APIMethod: distanceTo
+     * Calculate the closest distance between two geometries (on the x-y plane).
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} The target geometry.
+     * options - {Object} Optional properties for configuring the distance
+     *     calculation.
+     *
+     * Valid options:
+     * details - {Boolean} Return details from the distance calculation.
+     *     Default is false.
+     * edge - {Boolean} Calculate the distance from this geometry to the
+     *     nearest edge of the target geometry.  Default is true.  If true,
+     *     calling distanceTo from a geometry that is wholly contained within
+     *     the target will result in a non-zero distance.  If false, whenever
+     *     geometries intersect, calling distanceTo will return 0.  If false,
+     *     details cannot be returned.
+     *
+     * Returns:
+     * {Number | Object} The distance between this geometry and the target.
+     *     If details is true, the return will be an object with distance,
+     *     x0, y0, x1, and y1 properties.  The x0 and y0 properties represent
+     *     the coordinates of the closest point on this geometry. The x1 and y1
+     *     properties represent the coordinates of the closest point on the
+     *     target geometry.
+     */
+    distanceTo: function(geometry, options) {
+        var edge = !(options && options.edge === false);
+        var details = edge && options && options.details;
+        var result, best, distance;
+        var min = Number.POSITIVE_INFINITY;
+        for(var i=0, len=this.components.length; i<len; ++i) {
+            result = this.components[i].distanceTo(geometry, options);
+            distance = details ? result.distance : result;
+            if(distance < min) {
+                min = distance;
+                best = result;
+                if(min == 0) {
+                    break;
+                }
+            }
+        }
+        return best;
+    },
+
+    /** 
+     * APIMethod: equals
+     * Determine whether another geometry is equivalent to this one.  Geometries
+     *     are considered equivalent if all components have the same coordinates.
+     * 
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} The geometry to test. 
+     *
+     * Returns:
+     * {Boolean} The supplied geometry is equivalent to this geometry.
+     */
+    equals: function(geometry) {
+        var equivalent = true;
+        if(!geometry || !geometry.CLASS_NAME ||
+           (this.CLASS_NAME != geometry.CLASS_NAME)) {
+            equivalent = false;
+        } else if(!(OpenLayers.Util.isArray(geometry.components)) ||
+                  (geometry.components.length != this.components.length)) {
+            equivalent = false;
+        } else {
+            for(var i=0, len=this.components.length; i<len; ++i) {
+                if(!this.components[i].equals(geometry.components[i])) {
+                    equivalent = false;
+                    break;
+                }
+            }
+        }
+        return equivalent;
+    },
+
+    /**
+     * APIMethod: transform
+     * Reproject the components geometry from source to dest.
+     * 
+     * Parameters:
+     * source - {<OpenLayers.Projection>} 
+     * dest - {<OpenLayers.Projection>}
+     * 
+     * Returns:
+     * {<OpenLayers.Geometry>} 
+     */
+    transform: function(source, dest) {
+        if (source && dest) {
+            for (var i=0, len=this.components.length; i<len; i++) {  
+                var component = this.components[i];
+                component.transform(source, dest);
+            }
+            this.bounds = null;
+        }
+        return this;
+    },
+
+    /**
+     * APIMethod: intersects
+     * Determine if the input geometry intersects this one.
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} Any type of geometry.
+     *
+     * Returns:
+     * {Boolean} The input geometry intersects this one.
+     */
+    intersects: function(geometry) {
+        var intersect = false;
+        for(var i=0, len=this.components.length; i<len; ++ i) {
+            intersect = geometry.intersects(this.components[i]);
+            if(intersect) {
+                break;
+            }
+        }
+        return intersect;
+    },
+
+    /**
+     * APIMethod: getVertices
+     * Return a list of all points in this geometry.
+     *
+     * Parameters:
+     * nodes - {Boolean} For lines, only return vertices that are
+     *     endpoints.  If false, for lines, only vertices that are not
+     *     endpoints will be returned.  If not provided, all vertices will
+     *     be returned.
+     *
+     * Returns:
+     * {Array} A list of all vertices in the geometry.
+     */
+    getVertices: function(nodes) {
+        var vertices = [];
+        for(var i=0, len=this.components.length; i<len; ++i) {
+            Array.prototype.push.apply(
+                vertices, this.components[i].getVertices(nodes)
+            );
+        }
+        return vertices;
+    },
+
+
+    CLASS_NAME: "OpenLayers.Geometry.Collection"
+});
+/* ======================================================================
+    OpenLayers/Geometry/Point.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Geometry.js
+ */
+
+/**
+ * Class: OpenLayers.Geometry.Point
+ * Point geometry class. 
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Geometry> 
+ */
+OpenLayers.Geometry.Point = OpenLayers.Class(OpenLayers.Geometry, {
+
+    /** 
+     * APIProperty: x 
+     * {float} 
+     */
+    x: null,
+
+    /** 
+     * APIProperty: y 
+     * {float} 
+     */
+    y: null,
+
+    /**
+     * Constructor: OpenLayers.Geometry.Point
+     * Construct a point geometry.
+     *
+     * Parameters:
+     * x - {float} 
+     * y - {float}
+     * 
+     */
+    initialize: function(x, y) {
+        OpenLayers.Geometry.prototype.initialize.apply(this, arguments);
+        
+        this.x = parseFloat(x);
+        this.y = parseFloat(y);
+    },
+
+    /**
+     * APIMethod: clone
+     * 
+     * Returns:
+     * {<OpenLayers.Geometry.Point>} An exact clone of this OpenLayers.Geometry.Point
+     */
+    clone: function(obj) {
+        if (obj == null) {
+            obj = new OpenLayers.Geometry.Point(this.x, this.y);
+        }
+
+        // catch any randomly tagged-on properties
+        OpenLayers.Util.applyDefaults(obj, this);
+
+        return obj;
+    },
+
+    /** 
+     * Method: calculateBounds
+     * Create a new Bounds based on the lon/lat
+     */
+    calculateBounds: function () {
+        this.bounds = new OpenLayers.Bounds(this.x, this.y,
+                                            this.x, this.y);
+    },
+
+    /**
+     * APIMethod: distanceTo
+     * Calculate the closest distance between two geometries (on the x-y plane).
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} The target geometry.
+     * options - {Object} Optional properties for configuring the distance
+     *     calculation.
+     *
+     * Valid options:
+     * details - {Boolean} Return details from the distance calculation.
+     *     Default is false.
+     * edge - {Boolean} Calculate the distance from this geometry to the
+     *     nearest edge of the target geometry.  Default is true.  If true,
+     *     calling distanceTo from a geometry that is wholly contained within
+     *     the target will result in a non-zero distance.  If false, whenever
+     *     geometries intersect, calling distanceTo will return 0.  If false,
+     *     details cannot be returned.
+     *
+     * Returns:
+     * {Number | Object} The distance between this geometry and the target.
+     *     If details is true, the return will be an object with distance,
+     *     x0, y0, x1, and x2 properties.  The x0 and y0 properties represent
+     *     the coordinates of the closest point on this geometry. The x1 and y1
+     *     properties represent the coordinates of the closest point on the
+     *     target geometry.
+     */
+    distanceTo: function(geometry, options) {
+        var edge = !(options && options.edge === false);
+        var details = edge && options && options.details;
+        var distance, x0, y0, x1, y1, result;
+        if(geometry instanceof OpenLayers.Geometry.Point) {
+            x0 = this.x;
+            y0 = this.y;
+            x1 = geometry.x;
+            y1 = geometry.y;
+            distance = Math.sqrt(Math.pow(x0 - x1, 2) + Math.pow(y0 - y1, 2));
+            result = !details ?
+                distance : {x0: x0, y0: y0, x1: x1, y1: y1, distance: distance};
+        } else {
+            result = geometry.distanceTo(this, options);
+            if(details) {
+                // switch coord order since this geom is target
+                result = {
+                    x0: result.x1, y0: result.y1,
+                    x1: result.x0, y1: result.y0,
+                    distance: result.distance
+                };
+            }
+        }
+        return result;
+    },
+    
+    /** 
+     * APIMethod: equals
+     * Determine whether another geometry is equivalent to this one.  Geometries
+     *     are considered equivalent if all components have the same coordinates.
+     * 
+     * Parameters:
+     * geom - {<OpenLayers.Geometry.Point>} The geometry to test. 
+     *
+     * Returns:
+     * {Boolean} The supplied geometry is equivalent to this geometry.
+     */
+    equals: function(geom) {
+        var equals = false;
+        if (geom != null) {
+            equals = ((this.x == geom.x && this.y == geom.y) ||
+                      (isNaN(this.x) && isNaN(this.y) && isNaN(geom.x) && isNaN(geom.y)));
+        }
+        return equals;
+    },
+    
+    /**
+     * Method: toShortString
+     *
+     * Returns:
+     * {String} Shortened String representation of Point object. 
+     *         (ex. <i>"5, 42"</i>)
+     */
+    toShortString: function() {
+        return (this.x + ", " + this.y);
+    },
+    
+    /**
+     * APIMethod: move
+     * Moves a geometry by the given displacement along positive x and y axes.
+     *     This modifies the position of the geometry and clears the cached
+     *     bounds.
+     *
+     * Parameters:
+     * x - {Float} Distance to move geometry in positive x direction. 
+     * y - {Float} Distance to move geometry in positive y direction.
+     */
+    move: function(x, y) {
+        this.x = this.x + x;
+        this.y = this.y + y;
+        this.clearBounds();
+    },
+
+    /**
+     * APIMethod: rotate
+     * Rotate a point around another.
+     *
+     * Parameters:
+     * angle - {Float} Rotation angle in degrees (measured counterclockwise
+     *                 from the positive x-axis)
+     * origin - {<OpenLayers.Geometry.Point>} Center point for the rotation
+     */
+    rotate: function(angle, origin) {
+        angle *= Math.PI / 180;
+        var radius = this.distanceTo(origin);
+        var theta = angle + Math.atan2(this.y - origin.y, this.x - origin.x);
+        this.x = origin.x + (radius * Math.cos(theta));
+        this.y = origin.y + (radius * Math.sin(theta));
+        this.clearBounds();
+    },
+    
+    /**
+     * APIMethod: getCentroid
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.Point>} The centroid of the collection
+     */
+    getCentroid: function() {
+        return new OpenLayers.Geometry.Point(this.x, this.y);
+    },
+
+    /**
+     * APIMethod: resize
+     * Resize a point relative to some origin.  For points, this has the effect
+     *     of scaling a vector (from the origin to the point).  This method is
+     *     more useful on geometry collection subclasses.
+     *
+     * Parameters:
+     * scale - {Float} Ratio of the new distance from the origin to the old
+     *                 distance from the origin.  A scale of 2 doubles the
+     *                 distance between the point and origin.
+     * origin - {<OpenLayers.Geometry.Point>} Point of origin for resizing
+     * ratio - {Float} Optional x:y ratio for resizing.  Default ratio is 1.
+     * 
+     * Returns:
+     * {<OpenLayers.Geometry>} - The current geometry. 
+     */
+    resize: function(scale, origin, ratio) {
+        ratio = (ratio == undefined) ? 1 : ratio;
+        this.x = origin.x + (scale * ratio * (this.x - origin.x));
+        this.y = origin.y + (scale * (this.y - origin.y));
+        this.clearBounds();
+        return this;
+    },
+    
+    /**
+     * APIMethod: intersects
+     * Determine if the input geometry intersects this one.
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} Any type of geometry.
+     *
+     * Returns:
+     * {Boolean} The input geometry intersects this one.
+     */
+    intersects: function(geometry) {
+        var intersect = false;
+        if(geometry.CLASS_NAME == "OpenLayers.Geometry.Point") {
+            intersect = this.equals(geometry);
+        } else {
+            intersect = geometry.intersects(this);
+        }
+        return intersect;
+    },
+    
+    /**
+     * APIMethod: transform
+     * Translate the x,y properties of the point from source to dest.
+     * 
+     * Parameters:
+     * source - {<OpenLayers.Projection>} 
+     * dest - {<OpenLayers.Projection>}
+     * 
+     * Returns:
+     * {<OpenLayers.Geometry>} 
+     */
+    transform: function(source, dest) {
+        if ((source && dest)) {
+            OpenLayers.Projection.transform(
+                this, source, dest); 
+            this.bounds = null;
+        }       
+        return this;
+    },
+
+    /**
+     * APIMethod: getVertices
+     * Return a list of all points in this geometry.
+     *
+     * Parameters:
+     * nodes - {Boolean} For lines, only return vertices that are
+     *     endpoints.  If false, for lines, only vertices that are not
+     *     endpoints will be returned.  If not provided, all vertices will
+     *     be returned.
+     *
+     * Returns:
+     * {Array} A list of all vertices in the geometry.
+     */
+    getVertices: function(nodes) {
+        return [this];
+    },
+
+    CLASS_NAME: "OpenLayers.Geometry.Point"
+});
+/* ======================================================================
+    OpenLayers/Geometry/MultiPoint.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Geometry/Collection.js
+ * @requires OpenLayers/Geometry/Point.js
+ */
+
+/**
+ * Class: OpenLayers.Geometry.MultiPoint
+ * MultiPoint is a collection of Points.  Create a new instance with the
+ * <OpenLayers.Geometry.MultiPoint> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Geometry.Collection>
+ *  - <OpenLayers.Geometry>
+ */
+OpenLayers.Geometry.MultiPoint = OpenLayers.Class(
+  OpenLayers.Geometry.Collection, {
+
+    /**
+     * Property: componentTypes
+     * {Array(String)} An array of class names representing the types of
+     * components that the collection can include.  A null value means the
+     * component types are not restricted.
+     */
+    componentTypes: ["OpenLayers.Geometry.Point"],
+
+    /**
+     * Constructor: OpenLayers.Geometry.MultiPoint
+     * Create a new MultiPoint Geometry
+     *
+     * Parameters:
+     * components - {Array(<OpenLayers.Geometry.Point>)} 
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.MultiPoint>}
+     */
+
+    /**
+     * APIMethod: addPoint
+     * Wrapper for <OpenLayers.Geometry.Collection.addComponent>
+     *
+     * Parameters:
+     * point - {<OpenLayers.Geometry.Point>} Point to be added
+     * index - {Integer} Optional index
+     */
+    addPoint: function(point, index) {
+        this.addComponent(point, index);
+    },
+    
+    /**
+     * APIMethod: removePoint
+     * Wrapper for <OpenLayers.Geometry.Collection.removeComponent>
+     *
+     * Parameters:
+     * point - {<OpenLayers.Geometry.Point>} Point to be removed
+     */
+    removePoint: function(point){
+        this.removeComponent(point);
+    },
+
+    CLASS_NAME: "OpenLayers.Geometry.MultiPoint"
+});
+/* ======================================================================
+    OpenLayers/Geometry/Curve.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Geometry/MultiPoint.js
+ */
+
+/**
+ * Class: OpenLayers.Geometry.Curve
+ * A Curve is a MultiPoint, whose points are assumed to be connected. To 
+ * this end, we provide a "getLength()" function, which iterates through 
+ * the points, summing the distances between them. 
+ * 
+ * Inherits: 
+ *  - <OpenLayers.Geometry.MultiPoint>
+ */
+OpenLayers.Geometry.Curve = OpenLayers.Class(OpenLayers.Geometry.MultiPoint, {
+
+    /**
+     * Property: componentTypes
+     * {Array(String)} An array of class names representing the types of 
+     *                 components that the collection can include.  A null 
+     *                 value means the component types are not restricted.
+     */
+    componentTypes: ["OpenLayers.Geometry.Point"],
+
+    /**
+     * Constructor: OpenLayers.Geometry.Curve
+     * 
+     * Parameters:
+     * point - {Array(<OpenLayers.Geometry.Point>)}
+     */
+    
+    /**
+     * APIMethod: getLength
+     * 
+     * Returns:
+     * {Float} The length of the curve
+     */
+    getLength: function() {
+        var length = 0.0;
+        if ( this.components && (this.components.length > 1)) {
+            for(var i=1, len=this.components.length; i<len; i++) {
+                length += this.components[i-1].distanceTo(this.components[i]);
+            }
+        }
+        return length;
+    },
+
+    /**
+     * APIMethod: getGeodesicLength
+     * Calculate the approximate length of the geometry were it projected onto
+     *     the earth.
+     *
+     * projection - {<OpenLayers.Projection>} The spatial reference system
+     *     for the geometry coordinates.  If not provided, Geographic/WGS84 is
+     *     assumed.
+     * 
+     * Returns:
+     * {Float} The appoximate geodesic length of the geometry in meters.
+     */
+    getGeodesicLength: function(projection) {
+        var geom = this;  // so we can work with a clone if needed
+        if(projection) {
+            var gg = new OpenLayers.Projection("EPSG:4326");
+            if(!gg.equals(projection)) {
+                geom = this.clone().transform(projection, gg);
+            }
+        }
+        var length = 0.0;
+        if(geom.components && (geom.components.length > 1)) {
+            var p1, p2;
+            for(var i=1, len=geom.components.length; i<len; i++) {
+                p1 = geom.components[i-1];
+                p2 = geom.components[i];
+                // this returns km and requires lon/lat properties
+                length += OpenLayers.Util.distVincenty(
+                    {lon: p1.x, lat: p1.y}, {lon: p2.x, lat: p2.y}
+                );
+            }
+        }
+        // convert to m
+        return length * 1000;
+    },
+
+    CLASS_NAME: "OpenLayers.Geometry.Curve"
+});
+/* ======================================================================
+    OpenLayers/Geometry/LineString.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Geometry/Curve.js
+ */
+
+/**
+ * Class: OpenLayers.Geometry.LineString
+ * A LineString is a Curve which, once two points have been added to it, can 
+ * never be less than two points long.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Geometry.Curve>
+ */
+OpenLayers.Geometry.LineString = OpenLayers.Class(OpenLayers.Geometry.Curve, {
+
+    /**
+     * Constructor: OpenLayers.Geometry.LineString
+     * Create a new LineString geometry
+     *
+     * Parameters:
+     * points - {Array(<OpenLayers.Geometry.Point>)} An array of points used to
+     *          generate the linestring
+     *
+     */
+
+    /**
+     * APIMethod: removeComponent
+     * Only allows removal of a point if there are three or more points in 
+     * the linestring. (otherwise the result would be just a single point)
+     *
+     * Parameters: 
+     * point - {<OpenLayers.Geometry.Point>} The point to be removed
+     *
+     * Returns: 
+     * {Boolean} The component was removed.
+     */
+    removeComponent: function(point) {
+        var removed = this.components && (this.components.length > 2);
+        if (removed) {
+            OpenLayers.Geometry.Collection.prototype.removeComponent.apply(this, 
+                                                                  arguments);
+        }
+        return removed;
+    },
+    
+    /**
+     * APIMethod: intersects
+     * Test for instersection between two geometries.  This is a cheapo
+     *     implementation of the Bently-Ottmann algorigithm.  It doesn't
+     *     really keep track of a sweep line data structure.  It is closer
+     *     to the brute force method, except that segments are sorted and
+     *     potential intersections are only calculated when bounding boxes
+     *     intersect.
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>}
+     *
+     * Returns:
+     * {Boolean} The input geometry intersects this geometry.
+     */
+    intersects: function(geometry) {
+        var intersect = false;
+        var type = geometry.CLASS_NAME;
+        if(type == "OpenLayers.Geometry.LineString" ||
+           type == "OpenLayers.Geometry.LinearRing" ||
+           type == "OpenLayers.Geometry.Point") {
+            var segs1 = this.getSortedSegments();
+            var segs2;
+            if(type == "OpenLayers.Geometry.Point") {
+                segs2 = [{
+                    x1: geometry.x, y1: geometry.y,
+                    x2: geometry.x, y2: geometry.y
+                }];
+            } else {
+                segs2 = geometry.getSortedSegments();
+            }
+            var seg1, seg1x1, seg1x2, seg1y1, seg1y2,
+                seg2, seg2y1, seg2y2;
+            // sweep right
+            outer: for(var i=0, len=segs1.length; i<len; ++i) {
+                seg1 = segs1[i];
+                seg1x1 = seg1.x1;
+                seg1x2 = seg1.x2;
+                seg1y1 = seg1.y1;
+                seg1y2 = seg1.y2;
+                inner: for(var j=0, jlen=segs2.length; j<jlen; ++j) {
+                    seg2 = segs2[j];
+                    if(seg2.x1 > seg1x2) {
+                        // seg1 still left of seg2
+                        break;
+                    }
+                    if(seg2.x2 < seg1x1) {
+                        // seg2 still left of seg1
+                        continue;
+                    }
+                    seg2y1 = seg2.y1;
+                    seg2y2 = seg2.y2;
+                    if(Math.min(seg2y1, seg2y2) > Math.max(seg1y1, seg1y2)) {
+                        // seg2 above seg1
+                        continue;
+                    }
+                    if(Math.max(seg2y1, seg2y2) < Math.min(seg1y1, seg1y2)) {
+                        // seg2 below seg1
+                        continue;
+                    }
+                    if(OpenLayers.Geometry.segmentsIntersect(seg1, seg2)) {
+                        intersect = true;
+                        break outer;
+                    }
+                }
+            }
+        } else {
+            intersect = geometry.intersects(this);
+        }
+        return intersect;
+    },
+    
+    /**
+     * Method: getSortedSegments
+     *
+     * Returns:
+     * {Array} An array of segment objects.  Segment objects have properties
+     *     x1, y1, x2, and y2.  The start point is represented by x1 and y1.
+     *     The end point is represented by x2 and y2.  Start and end are
+     *     ordered so that x1 < x2.
+     */
+    getSortedSegments: function() {
+        var numSeg = this.components.length - 1;
+        var segments = new Array(numSeg), point1, point2;
+        for(var i=0; i<numSeg; ++i) {
+            point1 = this.components[i];
+            point2 = this.components[i + 1];
+            if(point1.x < point2.x) {
+                segments[i] = {
+                    x1: point1.x,
+                    y1: point1.y,
+                    x2: point2.x,
+                    y2: point2.y
+                };
+            } else {
+                segments[i] = {
+                    x1: point2.x,
+                    y1: point2.y,
+                    x2: point1.x,
+                    y2: point1.y
+                };
+            }
+        }
+        // more efficient to define this somewhere static
+        function byX1(seg1, seg2) {
+            return seg1.x1 - seg2.x1;
+        }
+        return segments.sort(byX1);
+    },
+    
+    /**
+     * Method: splitWithSegment
+     * Split this geometry with the given segment.
+     *
+     * Parameters:
+     * seg - {Object} An object with x1, y1, x2, and y2 properties referencing
+     *     segment endpoint coordinates.
+     * options - {Object} Properties of this object will be used to determine
+     *     how the split is conducted.
+     *
+     * Valid options:
+     * edge - {Boolean} Allow splitting when only edges intersect.  Default is
+     *     true.  If false, a vertex on the source segment must be within the
+     *     tolerance distance of the intersection to be considered a split.
+     * tolerance - {Number} If a non-null value is provided, intersections
+     *     within the tolerance distance of one of the source segment's
+     *     endpoints will be assumed to occur at the endpoint.
+     *
+     * Returns:
+     * {Object} An object with *lines* and *points* properties.  If the given
+     *     segment intersects this linestring, the lines array will reference
+     *     geometries that result from the split.  The points array will contain
+     *     all intersection points.  Intersection points are sorted along the
+     *     segment (in order from x1,y1 to x2,y2).
+     */
+    splitWithSegment: function(seg, options) {
+        var edge = !(options && options.edge === false);
+        var tolerance = options && options.tolerance;
+        var lines = [];
+        var verts = this.getVertices();
+        var points = [];
+        var intersections = [];
+        var split = false;
+        var vert1, vert2, point;
+        var node, vertex, target;
+        var interOptions = {point: true, tolerance: tolerance};
+        var result = null;
+        for(var i=0, stop=verts.length-2; i<=stop; ++i) {
+            vert1 = verts[i];
+            points.push(vert1.clone());
+            vert2 = verts[i+1];
+            target = {x1: vert1.x, y1: vert1.y, x2: vert2.x, y2: vert2.y};
+            point = OpenLayers.Geometry.segmentsIntersect(
+                seg, target, interOptions
+            );
+            if(point instanceof OpenLayers.Geometry.Point) {
+                if((point.x === seg.x1 && point.y === seg.y1) ||
+                   (point.x === seg.x2 && point.y === seg.y2) ||
+                   point.equals(vert1) || point.equals(vert2)) {
+                    vertex = true;
+                } else {
+                    vertex = false;
+                }
+                if(vertex || edge) {
+                    // push intersections different than the previous
+                    if(!point.equals(intersections[intersections.length-1])) {
+                        intersections.push(point.clone());
+                    }
+                    if(i === 0) {
+                        if(point.equals(vert1)) {
+                            continue;
+                        }
+                    }
+                    if(point.equals(vert2)) {
+                        continue;
+                    }
+                    split = true;
+                    if(!point.equals(vert1)) {
+                        points.push(point);
+                    }
+                    lines.push(new OpenLayers.Geometry.LineString(points));
+                    points = [point.clone()];
+                }
+            }
+        }
+        if(split) {
+            points.push(vert2.clone());
+            lines.push(new OpenLayers.Geometry.LineString(points));
+        }
+        if(intersections.length > 0) {
+            // sort intersections along segment
+            var xDir = seg.x1 < seg.x2 ? 1 : -1;
+            var yDir = seg.y1 < seg.y2 ? 1 : -1;
+            result = {
+                lines: lines,
+                points: intersections.sort(function(p1, p2) {
+                    return (xDir * p1.x - xDir * p2.x) || (yDir * p1.y - yDir * p2.y);
+                })
+            };
+        }
+        return result;
+    },
+
+    /**
+     * Method: split
+     * Use this geometry (the source) to attempt to split a target geometry.
+     * 
+     * Parameters:
+     * target - {<OpenLayers.Geometry>} The target geometry.
+     * options - {Object} Properties of this object will be used to determine
+     *     how the split is conducted.
+     *
+     * Valid options:
+     * mutual - {Boolean} Split the source geometry in addition to the target
+     *     geometry.  Default is false.
+     * edge - {Boolean} Allow splitting when only edges intersect.  Default is
+     *     true.  If false, a vertex on the source must be within the tolerance
+     *     distance of the intersection to be considered a split.
+     * tolerance - {Number} If a non-null value is provided, intersections
+     *     within the tolerance distance of an existing vertex on the source
+     *     will be assumed to occur at the vertex.
+     * 
+     * Returns:
+     * {Array} A list of geometries (of this same type as the target) that
+     *     result from splitting the target with the source geometry.  The
+     *     source and target geometry will remain unmodified.  If no split
+     *     results, null will be returned.  If mutual is true and a split
+     *     results, return will be an array of two arrays - the first will be
+     *     all geometries that result from splitting the source geometry and
+     *     the second will be all geometries that result from splitting the
+     *     target geometry.
+     */
+    split: function(target, options) {
+        var results = null;
+        var mutual = options && options.mutual;
+        var sourceSplit, targetSplit, sourceParts, targetParts;
+        if(target instanceof OpenLayers.Geometry.LineString) {
+            var verts = this.getVertices();
+            var vert1, vert2, seg, splits, lines, point;
+            var points = [];
+            sourceParts = [];
+            for(var i=0, stop=verts.length-2; i<=stop; ++i) {
+                vert1 = verts[i];
+                vert2 = verts[i+1];
+                seg = {
+                    x1: vert1.x, y1: vert1.y,
+                    x2: vert2.x, y2: vert2.y
+                };
+                targetParts = targetParts || [target];
+                if(mutual) {
+                    points.push(vert1.clone());
+                }
+                for(var j=0; j<targetParts.length; ++j) {
+                    splits = targetParts[j].splitWithSegment(seg, options);
+                    if(splits) {
+                        // splice in new features
+                        lines = splits.lines;
+                        if(lines.length > 0) {
+                            lines.unshift(j, 1);
+                            Array.prototype.splice.apply(targetParts, lines);
+                            j += lines.length - 2;
+                        }
+                        if(mutual) {
+                            for(var k=0, len=splits.points.length; k<len; ++k) {
+                                point = splits.points[k];
+                                if(!point.equals(vert1)) {
+                                    points.push(point);
+                                    sourceParts.push(new OpenLayers.Geometry.LineString(points));
+                                    if(point.equals(vert2)) {
+                                        points = [];
+                                    } else {
+                                        points = [point.clone()];
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            if(mutual && sourceParts.length > 0 && points.length > 0) {
+                points.push(vert2.clone());
+                sourceParts.push(new OpenLayers.Geometry.LineString(points));
+            }
+        } else {
+            results = target.splitWith(this, options);
+        }
+        if(targetParts && targetParts.length > 1) {
+            targetSplit = true;
+        } else {
+            targetParts = [];
+        }
+        if(sourceParts && sourceParts.length > 1) {
+            sourceSplit = true;
+        } else {
+            sourceParts = [];
+        }
+        if(targetSplit || sourceSplit) {
+            if(mutual) {
+                results = [sourceParts, targetParts];
+            } else {
+                results = targetParts;
+            }
+        }
+        return results;
+    },
+
+    /**
+     * Method: splitWith
+     * Split this geometry (the target) with the given geometry (the source).
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} A geometry used to split this
+     *     geometry (the source).
+     * options - {Object} Properties of this object will be used to determine
+     *     how the split is conducted.
+     *
+     * Valid options:
+     * mutual - {Boolean} Split the source geometry in addition to the target
+     *     geometry.  Default is false.
+     * edge - {Boolean} Allow splitting when only edges intersect.  Default is
+     *     true.  If false, a vertex on the source must be within the tolerance
+     *     distance of the intersection to be considered a split.
+     * tolerance - {Number} If a non-null value is provided, intersections
+     *     within the tolerance distance of an existing vertex on the source
+     *     will be assumed to occur at the vertex.
+     * 
+     * Returns:
+     * {Array} A list of geometries (of this same type as the target) that
+     *     result from splitting the target with the source geometry.  The
+     *     source and target geometry will remain unmodified.  If no split
+     *     results, null will be returned.  If mutual is true and a split
+     *     results, return will be an array of two arrays - the first will be
+     *     all geometries that result from splitting the source geometry and
+     *     the second will be all geometries that result from splitting the
+     *     target geometry.
+     */
+    splitWith: function(geometry, options) {
+        return geometry.split(this, options);
+
+    },
+
+    /**
+     * APIMethod: getVertices
+     * Return a list of all points in this geometry.
+     *
+     * Parameters:
+     * nodes - {Boolean} For lines, only return vertices that are
+     *     endpoints.  If false, for lines, only vertices that are not
+     *     endpoints will be returned.  If not provided, all vertices will
+     *     be returned.
+     *
+     * Returns:
+     * {Array} A list of all vertices in the geometry.
+     */
+    getVertices: function(nodes) {
+        var vertices;
+        if(nodes === true) {
+            vertices = [
+                this.components[0],
+                this.components[this.components.length-1]
+            ];
+        } else if (nodes === false) {
+            vertices = this.components.slice(1, this.components.length-1);
+        } else {
+            vertices = this.components.slice();
+        }
+        return vertices;
+    },
+
+    /**
+     * APIMethod: distanceTo
+     * Calculate the closest distance between two geometries (on the x-y plane).
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} The target geometry.
+     * options - {Object} Optional properties for configuring the distance
+     *     calculation.
+     *
+     * Valid options:
+     * details - {Boolean} Return details from the distance calculation.
+     *     Default is false.
+     * edge - {Boolean} Calculate the distance from this geometry to the
+     *     nearest edge of the target geometry.  Default is true.  If true,
+     *     calling distanceTo from a geometry that is wholly contained within
+     *     the target will result in a non-zero distance.  If false, whenever
+     *     geometries intersect, calling distanceTo will return 0.  If false,
+     *     details cannot be returned.
+     *
+     * Returns:
+     * {Number | Object} The distance between this geometry and the target.
+     *     If details is true, the return will be an object with distance,
+     *     x0, y0, x1, and x2 properties.  The x0 and y0 properties represent
+     *     the coordinates of the closest point on this geometry. The x1 and y1
+     *     properties represent the coordinates of the closest point on the
+     *     target geometry.
+     */
+    distanceTo: function(geometry, options) {
+        var edge = !(options && options.edge === false);
+        var details = edge && options && options.details;
+        var result, best = {};
+        var min = Number.POSITIVE_INFINITY;
+        if(geometry instanceof OpenLayers.Geometry.Point) {
+            var segs = this.getSortedSegments();
+            var x = geometry.x;
+            var y = geometry.y;
+            var seg;
+            for(var i=0, len=segs.length; i<len; ++i) {
+                seg = segs[i];
+                result = OpenLayers.Geometry.distanceToSegment(geometry, seg);
+                if(result.distance < min) {
+                    min = result.distance;
+                    best = result;
+                    if(min === 0) {
+                        break;
+                    }
+                } else {
+                    // if distance increases and we cross y0 to the right of x0, no need to keep looking.
+                    if(seg.x2 > x && ((y > seg.y1 && y < seg.y2) || (y < seg.y1 && y > seg.y2))) {
+                        break;
+                    }
+                }
+            }
+            if(details) {
+                best = {
+                    distance: best.distance,
+                    x0: best.x, y0: best.y,
+                    x1: x, y1: y
+                };
+            } else {
+                best = best.distance;
+            }
+        } else if(geometry instanceof OpenLayers.Geometry.LineString) { 
+            var segs0 = this.getSortedSegments();
+            var segs1 = geometry.getSortedSegments();
+            var seg0, seg1, intersection, x0, y0;
+            var len1 = segs1.length;
+            var interOptions = {point: true};
+            outer: for(var i=0, len=segs0.length; i<len; ++i) {
+                seg0 = segs0[i];
+                x0 = seg0.x1;
+                y0 = seg0.y1;
+                for(var j=0; j<len1; ++j) {
+                    seg1 = segs1[j];
+                    intersection = OpenLayers.Geometry.segmentsIntersect(seg0, seg1, interOptions);
+                    if(intersection) {
+                        min = 0;
+                        best = {
+                            distance: 0,
+                            x0: intersection.x, y0: intersection.y,
+                            x1: intersection.x, y1: intersection.y
+                        };
+                        break outer;
+                    } else {
+                        result = OpenLayers.Geometry.distanceToSegment({x: x0, y: y0}, seg1);
+                        if(result.distance < min) {
+                            min = result.distance;
+                            best = {
+                                distance: min,
+                                x0: x0, y0: y0,
+                                x1: result.x, y1: result.y
+                            };
+                        }
+                    }
+                }
+            }
+            if(!details) {
+                best = best.distance;
+            }
+            if(min !== 0) {
+                // check the final vertex in this line's sorted segments
+                if(seg0) {
+                    result = geometry.distanceTo(
+                        new OpenLayers.Geometry.Point(seg0.x2, seg0.y2),
+                        options
+                    );
+                    var dist = details ? result.distance : result;
+                    if(dist < min) {
+                        if(details) {
+                            best = {
+                                distance: min,
+                                x0: result.x1, y0: result.y1,
+                                x1: result.x0, y1: result.y0
+                            };
+                        } else {
+                            best = dist;
+                        }
+                    }
+                }
+            }
+        } else {
+            best = geometry.distanceTo(this, options);
+            // swap since target comes from this line
+            if(details) {
+                best = {
+                    distance: best.distance,
+                    x0: best.x1, y0: best.y1,
+                    x1: best.x0, y1: best.y0
+                };
+            }
+        }
+        return best;
+    },
+    
+    /**
+     * APIMethod: simplify
+     * This function will return a simplified LineString.
+     * Simplification is based on the Douglas-Peucker algorithm.
+     *
+     *
+     * Parameters:
+     * tolerance - {number} threshhold for simplification in map units
+     *
+     * Returns:
+     * {OpenLayers.Geometry.LineString} the simplified LineString
+     */
+    simplify: function(tolerance){
+        if (this && this !== null) {
+            var points = this.getVertices();
+            if (points.length < 3) {
+                return this;
+            }
+    
+            var compareNumbers = function(a, b){
+                return (a-b);
+            };
+    
+            /**
+             * Private function doing the Douglas-Peucker reduction
+             */
+            var douglasPeuckerReduction = function(points, firstPoint, lastPoint, tolerance){
+                var maxDistance = 0;
+                var indexFarthest = 0;
+    
+                for (var index = firstPoint, distance; index < lastPoint; index++) {
+                    distance = perpendicularDistance(points[firstPoint], points[lastPoint], points[index]);
+                    if (distance > maxDistance) {
+                        maxDistance = distance;
+                        indexFarthest = index;
+                    }
+                }
+    
+                if (maxDistance > tolerance && indexFarthest != firstPoint) {
+                    //Add the largest point that exceeds the tolerance
+                    pointIndexsToKeep.push(indexFarthest);
+                    douglasPeuckerReduction(points, firstPoint, indexFarthest, tolerance);
+                    douglasPeuckerReduction(points, indexFarthest, lastPoint, tolerance);
+                }
+            };
+    
+            /**
+             * Private function calculating the perpendicular distance
+             * TODO: check whether OpenLayers.Geometry.LineString::distanceTo() is faster or slower
+             */
+            var perpendicularDistance = function(point1, point2, point){
+                //Area = |(1/2)(x1y2 + x2y3 + x3y1 - x2y1 - x3y2 - x1y3)|   *Area of triangle
+                //Base = v((x1-x2)²+(x1-x2)²)                               *Base of Triangle*
+                //Area = .5*Base*H                                          *Solve for height
+                //Height = Area/.5/Base
+    
+                var area = Math.abs(0.5 * (point1.x * point2.y + point2.x * point.y + point.x * point1.y - point2.x * point1.y - point.x * point2.y - point1.x * point.y));
+                var bottom = Math.sqrt(Math.pow(point1.x - point2.x, 2) + Math.pow(point1.y - point2.y, 2));
+                var height = area / bottom * 2;
+    
+                return height;
+            };
+    
+            var firstPoint = 0;
+            var lastPoint = points.length - 1;
+            var pointIndexsToKeep = [];
+    
+            //Add the first and last index to the keepers
+            pointIndexsToKeep.push(firstPoint);
+            pointIndexsToKeep.push(lastPoint);
+    
+            //The first and the last point cannot be the same
+            while (points[firstPoint].equals(points[lastPoint])) {
+                lastPoint--;
+                //Addition: the first point not equal to first point in the LineString is kept as well
+                pointIndexsToKeep.push(lastPoint);
+            }
+    
+            douglasPeuckerReduction(points, firstPoint, lastPoint, tolerance);
+            var returnPoints = [];
+            pointIndexsToKeep.sort(compareNumbers);
+            for (var index = 0; index < pointIndexsToKeep.length; index++) {
+                returnPoints.push(points[pointIndexsToKeep[index]]);
+            }
+            return new OpenLayers.Geometry.LineString(returnPoints);
+    
+        }
+        else {
+            return this;
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Geometry.LineString"
+});
+/* ======================================================================
+    OpenLayers/Geometry/LinearRing.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Geometry/LineString.js
+ */
+
+/**
+ * Class: OpenLayers.Geometry.LinearRing
+ * 
+ * A Linear Ring is a special LineString which is closed. It closes itself 
+ * automatically on every addPoint/removePoint by adding a copy of the first
+ * point as the last point. 
+ * 
+ * Also, as it is the first in the line family to close itself, a getArea()
+ * function is defined to calculate the enclosed area of the linearRing
+ * 
+ * Inherits:
+ *  - <OpenLayers.Geometry.LineString>
+ */
+OpenLayers.Geometry.LinearRing = OpenLayers.Class(
+  OpenLayers.Geometry.LineString, {
+
+    /**
+     * Property: componentTypes
+     * {Array(String)} An array of class names representing the types of 
+     *                 components that the collection can include.  A null 
+     *                 value means the component types are not restricted.
+     */
+    componentTypes: ["OpenLayers.Geometry.Point"],
+
+    /**
+     * Constructor: OpenLayers.Geometry.LinearRing
+     * Linear rings are constructed with an array of points.  This array
+     *     can represent a closed or open ring.  If the ring is open (the last
+     *     point does not equal the first point), the constructor will close
+     *     the ring.  If the ring is already closed (the last point does equal
+     *     the first point), it will be left closed.
+     * 
+     * Parameters:
+     * points - {Array(<OpenLayers.Geometry.Point>)} points
+     */
+
+    /**
+     * APIMethod: addComponent
+     * Adds a point to geometry components.  If the point is to be added to
+     *     the end of the components array and it is the same as the last point
+     *     already in that array, the duplicate point is not added.  This has 
+     *     the effect of closing the ring if it is not already closed, and 
+     *     doing the right thing if it is already closed.  This behavior can 
+     *     be overridden by calling the method with a non-null index as the 
+     *     second argument.
+     *
+     * Parameters:
+     * point - {<OpenLayers.Geometry.Point>}
+     * index - {Integer} Index into the array to insert the component
+     * 
+     * Returns:
+     * {Boolean} Was the Point successfully added?
+     */
+    addComponent: function(point, index) {
+        var added = false;
+
+        //remove last point
+        var lastPoint = this.components.pop();
+
+        // given an index, add the point
+        // without an index only add non-duplicate points
+        if(index != null || !point.equals(lastPoint)) {
+            added = OpenLayers.Geometry.Collection.prototype.addComponent.apply(this, 
+                                                                    arguments);
+        }
+
+        //append copy of first point
+        var firstPoint = this.components[0];
+        OpenLayers.Geometry.Collection.prototype.addComponent.apply(this, 
+                                                                [firstPoint]);
+        
+        return added;
+    },
+    
+    /**
+     * APIMethod: removeComponent
+     * Removes a point from geometry components.
+     *
+     * Parameters:
+     * point - {<OpenLayers.Geometry.Point>}
+     *
+     * Returns: 
+     * {Boolean} The component was removed.
+     */
+    removeComponent: function(point) {
+        var removed = this.components && (this.components.length > 3);
+        if (removed) {
+            //remove last point
+            this.components.pop();
+            
+            //remove our point
+            OpenLayers.Geometry.Collection.prototype.removeComponent.apply(this, 
+                                                                    arguments);
+            //append copy of first point
+            var firstPoint = this.components[0];
+            OpenLayers.Geometry.Collection.prototype.addComponent.apply(this, 
+                                                                [firstPoint]);
+        }
+        return removed;
+    },
+    
+    /**
+     * APIMethod: move
+     * Moves a geometry by the given displacement along positive x and y axes.
+     *     This modifies the position of the geometry and clears the cached
+     *     bounds.
+     *
+     * Parameters:
+     * x - {Float} Distance to move geometry in positive x direction. 
+     * y - {Float} Distance to move geometry in positive y direction.
+     */
+    move: function(x, y) {
+        for(var i = 0, len=this.components.length; i<len - 1; i++) {
+            this.components[i].move(x, y);
+        }
+    },
+
+    /**
+     * APIMethod: rotate
+     * Rotate a geometry around some origin
+     *
+     * Parameters:
+     * angle - {Float} Rotation angle in degrees (measured counterclockwise
+     *                 from the positive x-axis)
+     * origin - {<OpenLayers.Geometry.Point>} Center point for the rotation
+     */
+    rotate: function(angle, origin) {
+        for(var i=0, len=this.components.length; i<len - 1; ++i) {
+            this.components[i].rotate(angle, origin);
+        }
+    },
+
+    /**
+     * APIMethod: resize
+     * Resize a geometry relative to some origin.  Use this method to apply
+     *     a uniform scaling to a geometry.
+     *
+     * Parameters:
+     * scale - {Float} Factor by which to scale the geometry.  A scale of 2
+     *                 doubles the size of the geometry in each dimension
+     *                 (lines, for example, will be twice as long, and polygons
+     *                 will have four times the area).
+     * origin - {<OpenLayers.Geometry.Point>} Point of origin for resizing
+     * ratio - {Float} Optional x:y ratio for resizing.  Default ratio is 1.
+     * 
+     * Returns:
+     * {<OpenLayers.Geometry>} - The current geometry. 
+     */
+    resize: function(scale, origin, ratio) {
+        for(var i=0, len=this.components.length; i<len - 1; ++i) {
+            this.components[i].resize(scale, origin, ratio);
+        }
+        return this;
+    },
+    
+    /**
+     * APIMethod: transform
+     * Reproject the components geometry from source to dest.
+     *
+     * Parameters:
+     * source - {<OpenLayers.Projection>}
+     * dest - {<OpenLayers.Projection>}
+     * 
+     * Returns:
+     * {<OpenLayers.Geometry>} 
+     */
+    transform: function(source, dest) {
+        if (source && dest) {
+            for (var i=0, len=this.components.length; i<len - 1; i++) {
+                var component = this.components[i];
+                component.transform(source, dest);
+            }
+            this.bounds = null;
+        }
+        return this;
+    },
+    
+    /**
+     * APIMethod: getCentroid
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.Point>} The centroid of the collection
+     */
+    getCentroid: function() {
+        if (this.components) {
+            var len = this.components.length;
+            if (len > 0 && len <= 2) {
+                return this.components[0].clone();
+            } else if (len > 2) {
+                var sumX = 0.0;
+                var sumY = 0.0;
+                var x0 = this.components[0].x;
+                var y0 = this.components[0].y;
+                var area = -1 * this.getArea();
+                if (area != 0) {
+                    for (var i = 0; i < len - 1; i++) {
+                        var b = this.components[i];
+                        var c = this.components[i+1];
+                        sumX += (b.x + c.x - 2 * x0) * ((b.x - x0) * (c.y - y0) - (c.x - x0) * (b.y - y0));
+                        sumY += (b.y + c.y - 2 * y0) * ((b.x - x0) * (c.y - y0) - (c.x - x0) * (b.y - y0));
+                    }
+                    var x = x0 + sumX / (6 * area);
+                    var y = y0 + sumY / (6 * area);
+                } else {
+                    for (var i = 0; i < len - 1; i++) {
+                        sumX += this.components[i].x;
+                        sumY += this.components[i].y;
+                    }
+                    var x = sumX / (len - 1);
+                    var y = sumY / (len - 1);
+                }
+                return new OpenLayers.Geometry.Point(x, y);
+            } else {
+                return null;
+            }
+        }
+    },
+
+    /**
+     * APIMethod: getArea
+     * Note - The area is positive if the ring is oriented CW, otherwise
+     *         it will be negative.
+     * 
+     * Returns:
+     * {Float} The signed area for a ring.
+     */
+    getArea: function() {
+        var area = 0.0;
+        if ( this.components && (this.components.length > 2)) {
+            var sum = 0.0;
+            for (var i=0, len=this.components.length; i<len - 1; i++) {
+                var b = this.components[i];
+                var c = this.components[i+1];
+                sum += (b.x + c.x) * (c.y - b.y);
+            }
+            area = - sum / 2.0;
+        }
+        return area;
+    },
+    
+    /**
+     * APIMethod: getGeodesicArea
+     * Calculate the approximate area of the polygon were it projected onto
+     *     the earth.  Note that this area will be positive if ring is oriented
+     *     clockwise, otherwise it will be negative.
+     *
+     * Parameters:
+     * projection - {<OpenLayers.Projection>} The spatial reference system
+     *     for the geometry coordinates.  If not provided, Geographic/WGS84 is
+     *     assumed.
+     * 
+     * Reference:
+     * Robert. G. Chamberlain and William H. Duquette, "Some Algorithms for
+     *     Polygons on a Sphere", JPL Publication 07-03, Jet Propulsion
+     *     Laboratory, Pasadena, CA, June 2007 http://trs-new.jpl.nasa.gov/dspace/handle/2014/40409
+     *
+     * Returns:
+     * {float} The approximate signed geodesic area of the polygon in square
+     *     meters.
+     */
+    getGeodesicArea: function(projection) {
+        var ring = this;  // so we can work with a clone if needed
+        if(projection) {
+            var gg = new OpenLayers.Projection("EPSG:4326");
+            if(!gg.equals(projection)) {
+                ring = this.clone().transform(projection, gg);
+            }
+        }
+        var area = 0.0;
+        var len = ring.components && ring.components.length;
+        if(len > 2) {
+            var p1, p2;
+            for(var i=0; i<len-1; i++) {
+                p1 = ring.components[i];
+                p2 = ring.components[i+1];
+                area += OpenLayers.Util.rad(p2.x - p1.x) *
+                        (2 + Math.sin(OpenLayers.Util.rad(p1.y)) +
+                        Math.sin(OpenLayers.Util.rad(p2.y)));
+            }
+            area = area * 6378137.0 * 6378137.0 / 2.0;
+        }
+        return area;
+    },
+    
+    /**
+     * Method: containsPoint
+     * Test if a point is inside a linear ring.  For the case where a point
+     *     is coincident with a linear ring edge, returns 1.  Otherwise,
+     *     returns boolean.
+     *
+     * Parameters:
+     * point - {<OpenLayers.Geometry.Point>}
+     *
+     * Returns:
+     * {Boolean | Number} The point is inside the linear ring.  Returns 1 if
+     *     the point is coincident with an edge.  Returns boolean otherwise.
+     */
+    containsPoint: function(point) {
+        var approx = OpenLayers.Number.limitSigDigs;
+        var digs = 14;
+        var px = approx(point.x, digs);
+        var py = approx(point.y, digs);
+        function getX(y, x1, y1, x2, y2) {
+            return (y - y2) * ((x2 - x1) / (y2 - y1)) + x2;
+        }
+        var numSeg = this.components.length - 1;
+        var start, end, x1, y1, x2, y2, cx, cy;
+        var crosses = 0;
+        for(var i=0; i<numSeg; ++i) {
+            start = this.components[i];
+            x1 = approx(start.x, digs);
+            y1 = approx(start.y, digs);
+            end = this.components[i + 1];
+            x2 = approx(end.x, digs);
+            y2 = approx(end.y, digs);
+            
+            /**
+             * The following conditions enforce five edge-crossing rules:
+             *    1. points coincident with edges are considered contained;
+             *    2. an upward edge includes its starting endpoint, and
+             *    excludes its final endpoint;
+             *    3. a downward edge excludes its starting endpoint, and
+             *    includes its final endpoint;
+             *    4. horizontal edges are excluded; and
+             *    5. the edge-ray intersection point must be strictly right
+             *    of the point P.
+             */
+            if(y1 == y2) {
+                // horizontal edge
+                if(py == y1) {
+                    // point on horizontal line
+                    if(x1 <= x2 && (px >= x1 && px <= x2) || // right or vert
+                       x1 >= x2 && (px <= x1 && px >= x2)) { // left or vert
+                        // point on edge
+                        crosses = -1;
+                        break;
+                    }
+                }
+                // ignore other horizontal edges
+                continue;
+            }
+            cx = approx(getX(py, x1, y1, x2, y2), digs);
+            if(cx == px) {
+                // point on line
+                if(y1 < y2 && (py >= y1 && py <= y2) || // upward
+                   y1 > y2 && (py <= y1 && py >= y2)) { // downward
+                    // point on edge
+                    crosses = -1;
+                    break;
+                }
+            }
+            if(cx <= px) {
+                // no crossing to the right
+                continue;
+            }
+            if(x1 != x2 && (cx < Math.min(x1, x2) || cx > Math.max(x1, x2))) {
+                // no crossing
+                continue;
+            }
+            if(y1 < y2 && (py >= y1 && py < y2) || // upward
+               y1 > y2 && (py < y1 && py >= y2)) { // downward
+                ++crosses;
+            }
+        }
+        var contained = (crosses == -1) ?
+            // on edge
+            1 :
+            // even (out) or odd (in)
+            !!(crosses & 1);
+
+        return contained;
+    },
+
+    /**
+     * APIMethod: intersects
+     * Determine if the input geometry intersects this one.
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} Any type of geometry.
+     *
+     * Returns:
+     * {Boolean} The input geometry intersects this one.
+     */
+    intersects: function(geometry) {
+        var intersect = false;
+        if(geometry.CLASS_NAME == "OpenLayers.Geometry.Point") {
+            intersect = this.containsPoint(geometry);
+        } else if(geometry.CLASS_NAME == "OpenLayers.Geometry.LineString") {
+            intersect = geometry.intersects(this);
+        } else if(geometry.CLASS_NAME == "OpenLayers.Geometry.LinearRing") {
+            intersect = OpenLayers.Geometry.LineString.prototype.intersects.apply(
+                this, [geometry]
+            );
+        } else {
+            // check for component intersections
+            for(var i=0, len=geometry.components.length; i<len; ++ i) {
+                intersect = geometry.components[i].intersects(this);
+                if(intersect) {
+                    break;
+                }
+            }
+        }
+        return intersect;
+    },
+
+    /**
+     * APIMethod: getVertices
+     * Return a list of all points in this geometry.
+     *
+     * Parameters:
+     * nodes - {Boolean} For lines, only return vertices that are
+     *     endpoints.  If false, for lines, only vertices that are not
+     *     endpoints will be returned.  If not provided, all vertices will
+     *     be returned.
+     *
+     * Returns:
+     * {Array} A list of all vertices in the geometry.
+     */
+    getVertices: function(nodes) {
+        return (nodes === true) ? [] : this.components.slice(0, this.components.length-1);
+    },
+
+    CLASS_NAME: "OpenLayers.Geometry.LinearRing"
+});
+/* ======================================================================
+    OpenLayers/Util/vendorPrefix.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/SingleFile.js
+ */
+
+OpenLayers.Util = OpenLayers.Util || {};
+/**
+ * Namespace: OpenLayers.Util.vendorPrefix
+ * A collection of utility functions to detect vendor prefixed features
+ */
+OpenLayers.Util.vendorPrefix = (function() {
+    "use strict";
+    
+    var VENDOR_PREFIXES = ["", "O", "ms", "Moz", "Webkit"],
+        divStyle = document.createElement("div").style,
+        cssCache = {},
+        jsCache = {};
+
+    
+    /**
+     * Function: domToCss
+     * Converts a upper camel case DOM style property name to a CSS property
+     *      i.e. transformOrigin -> transform-origin
+     *      or   WebkitTransformOrigin -> -webkit-transform-origin
+     *
+     * Parameters:
+     * prefixedDom - {String} The property to convert
+     *
+     * Returns:
+     * {String} The CSS property
+     */
+    function domToCss(prefixedDom) {
+        if (!prefixedDom) { return null; }
+        return prefixedDom.
+            replace(/([A-Z])/g, function(c) { return "-" + c.toLowerCase(); }).
+            replace(/^ms-/, "-ms-");
+    }
+
+    /**
+     * APIMethod: css
+     * Detect which property is used for a CSS property
+     *
+     * Parameters:
+     * property - {String} The standard (unprefixed) CSS property name
+     *
+     * Returns:
+     * {String} The standard CSS property, prefixed property or null if not
+     *          supported
+     */
+    function css(property) {
+        if (cssCache[property] === undefined) {
+            var domProperty = property.
+                replace(/(-[\s\S])/g, function(c) { return c.charAt(1).toUpperCase(); });
+            var prefixedDom = style(domProperty);
+            cssCache[property] = domToCss(prefixedDom);
+        }
+        return cssCache[property];
+    }
+
+    /**
+     * APIMethod: js
+     * Detect which property is used for a JS property/method
+     *
+     * Parameters:
+     * obj - {Object} The object to test on
+     * property - {String} The standard (unprefixed) JS property name
+     *
+     * Returns:
+     * {String} The standard JS property, prefixed property or null if not
+     *          supported
+     */
+    function js(obj, property) {
+        if (jsCache[property] === undefined) {
+            var tmpProp,
+                i = 0,
+                l = VENDOR_PREFIXES.length,
+                prefix,
+                isStyleObj = (typeof obj.cssText !== "undefined");
+
+            jsCache[property] = null;
+            for(; i<l; i++) {
+                prefix = VENDOR_PREFIXES[i];
+                if(prefix) {
+                    if (!isStyleObj) {
+                        // js prefix should be lower-case, while style
+                        // properties have upper case on first character
+                        prefix = prefix.toLowerCase();
+                    }
+                    tmpProp = prefix + property.charAt(0).toUpperCase() + property.slice(1);
+                } else {
+                    tmpProp = property;
+                }
+
+                if(obj[tmpProp] !== undefined) {
+                    jsCache[property] = tmpProp;
+                    break;
+                }
+            }
+        }
+        return jsCache[property];
+    }
+    
+    /**
+     * APIMethod: style
+     * Detect which property is used for a DOM style property
+     *
+     * Parameters:
+     * property - {String} The standard (unprefixed) style property name
+     *
+     * Returns:
+     * {String} The standard style property, prefixed property or null if not
+     *          supported
+     */
+    function style(property) {
+        return js(divStyle, property);
+    }
+    
+    return {
+        css:      css,
+        js:       js,
+        style:    style,
+        
+        // used for testing
+        cssCache:       cssCache,
+        jsCache:        jsCache
+    };
+}());
+/* ======================================================================
+    OpenLayers/Animation.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/SingleFile.js
+ * @requires OpenLayers/Util/vendorPrefix.js
+ */
+
+/**
+ * Namespace: OpenLayers.Animation
+ * A collection of utility functions for executing methods that repaint a 
+ *     portion of the browser window.  These methods take advantage of the
+ *     browser's scheduled repaints where requestAnimationFrame is available.
+ */
+OpenLayers.Animation = (function(window) {
+    
+    /**
+     * Property: isNative
+     * {Boolean} true if a native requestAnimationFrame function is available
+     */
+    var requestAnimationFrame = OpenLayers.Util.vendorPrefix.js(window, "requestAnimationFrame");
+    var isNative = !!(requestAnimationFrame);
+    
+    /**
+     * Function: requestFrame
+     * Schedule a function to be called at the next available animation frame.
+     *     Uses the native method where available.  Where requestAnimationFrame is
+     *     not available, setTimeout will be called with a 16ms delay.
+     *
+     * Parameters:
+     * callback - {Function} The function to be called at the next animation frame.
+     * element - {DOMElement} Optional element that visually bounds the animation.
+     */
+    var requestFrame = (function() {
+        var request = window[requestAnimationFrame] ||
+            function(callback, element) {
+                window.setTimeout(callback, 16);
+            };
+        // bind to window to avoid illegal invocation of native function
+        return function(callback, element) {
+            request.apply(window, [callback, element]);
+        };
+    })();
+    
+    // private variables for animation loops
+    var counter = 0;
+    var loops = {};
+    
+    /**
+     * Function: start
+     * Executes a method with <requestFrame> in series for some 
+     *     duration.
+     *
+     * Parameters:
+     * callback - {Function} The function to be called at the next animation frame.
+     * duration - {Number} Optional duration for the loop.  If not provided, the
+     *     animation loop will execute indefinitely.
+     * element - {DOMElement} Optional element that visually bounds the animation.
+     *
+     * Returns:
+     * {Number} Identifier for the animation loop.  Used to stop animations with
+     *     <stop>.
+     */
+    function start(callback, duration, element) {
+        duration = duration > 0 ? duration : Number.POSITIVE_INFINITY;
+        var id = ++counter;
+        var start = +new Date;
+        loops[id] = function() {
+            if (loops[id] && +new Date - start <= duration) {
+                callback();
+                if (loops[id]) {
+                    requestFrame(loops[id], element);
+                }
+            } else {
+                delete loops[id];
+            }
+        };
+        requestFrame(loops[id], element);
+        return id;
+    }
+    
+    /**
+     * Function: stop
+     * Terminates an animation loop started with <start>.
+     *
+     * Parameters:
+     * id - {Number} Identifier returned from <start>.
+     */
+    function stop(id) {
+        delete loops[id];
+    }
+    
+    return {
+        isNative: isNative,
+        requestFrame: requestFrame,
+        start: start,
+        stop: stop
+    };
+    
+})(window);
+/* ======================================================================
+    OpenLayers/Tween.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Animation.js
+ */
+
+/**
+ * Namespace: OpenLayers.Tween
+ */
+OpenLayers.Tween = OpenLayers.Class({
+    
+    /**
+     * APIProperty: easing
+     * {<OpenLayers.Easing>(Function)} Easing equation used for the animation
+     *     Defaultly set to OpenLayers.Easing.Expo.easeOut
+     */
+    easing: null,
+    
+    /**
+     * APIProperty: begin
+     * {Object} Values to start the animation with
+     */
+    begin: null,
+    
+    /**
+     * APIProperty: finish
+     * {Object} Values to finish the animation with
+     */
+    finish: null,
+    
+    /**
+     * APIProperty: duration
+     * {int} duration of the tween (number of steps)
+     */
+    duration: null,
+    
+    /**
+     * APIProperty: callbacks
+     * {Object} An object with start, eachStep and done properties whose values
+     *     are functions to be call during the animation. They are passed the
+     *     current computed value as argument.
+     */
+    callbacks: null,
+    
+    /**
+     * Property: time
+     * {int} Step counter
+     */
+    time: null,
+    
+    /**
+     * APIProperty: minFrameRate
+     * {Number} The minimum framerate for animations in frames per second. After
+     * each step, the time spent in the animation is compared to the calculated
+     * time at this frame rate. If the animation runs longer than the calculated
+     * time, the next step is skipped. Default is 30.
+     */
+    minFrameRate: null,
+
+    /**
+     * Property: startTime
+     * {Number} The timestamp of the first execution step. Used for skipping
+     * frames
+     */
+    startTime: null,
+    
+    /**
+     * Property: animationId
+     * {int} Loop id returned by OpenLayers.Animation.start
+     */
+    animationId: null,
+    
+    /**
+     * Property: playing
+     * {Boolean} Tells if the easing is currently playing
+     */
+    playing: false,
+    
+    /** 
+     * Constructor: OpenLayers.Tween
+     * Creates a Tween.
+     *
+     * Parameters:
+     * easing - {<OpenLayers.Easing>(Function)} easing function method to use
+     */ 
+    initialize: function(easing) {
+        this.easing = (easing) ? easing : OpenLayers.Easing.Expo.easeOut;
+    },
+    
+    /**
+     * APIMethod: start
+     * Plays the Tween, and calls the callback method on each step
+     * 
+     * Parameters:
+     * begin - {Object} values to start the animation with
+     * finish - {Object} values to finish the animation with
+     * duration - {int} duration of the tween (number of steps)
+     * options - {Object} hash of options (callbacks (start, eachStep, done),
+     *     minFrameRate)
+     */
+    start: function(begin, finish, duration, options) {
+        this.playing = true;
+        this.begin = begin;
+        this.finish = finish;
+        this.duration = duration;
+        this.callbacks = options.callbacks;
+        this.minFrameRate = options.minFrameRate || 30;
+        this.time = 0;
+        this.startTime = new Date().getTime();
+        OpenLayers.Animation.stop(this.animationId);
+        this.animationId = null;
+        if (this.callbacks && this.callbacks.start) {
+            this.callbacks.start.call(this, this.begin);
+        }
+        this.animationId = OpenLayers.Animation.start(
+            OpenLayers.Function.bind(this.play, this)
+        );
+    },
+    
+    /**
+     * APIMethod: stop
+     * Stops the Tween, and calls the done callback
+     *     Doesn't do anything if animation is already finished
+     */
+    stop: function() {
+        if (!this.playing) {
+            return;
+        }
+        
+        if (this.callbacks && this.callbacks.done) {
+            this.callbacks.done.call(this, this.finish);
+        }
+        OpenLayers.Animation.stop(this.animationId);
+        this.animationId = null;
+        this.playing = false;
+    },
+    
+    /**
+     * Method: play
+     * Calls the appropriate easing method
+     */
+    play: function() {
+        var value = {};
+        for (var i in this.begin) {
+            var b = this.begin[i];
+            var f = this.finish[i];
+            if (b == null || f == null || isNaN(b) || isNaN(f)) {
+                throw new TypeError('invalid value for Tween');
+            }
+
+            var c = f - b;
+            value[i] = this.easing.apply(this, [this.time, b, c, this.duration]);
+        }
+        this.time++;
+        
+        if (this.callbacks && this.callbacks.eachStep) {
+            // skip frames if frame rate drops below threshold
+            if ((new Date().getTime() - this.startTime) / this.time <= 1000 / this.minFrameRate) {
+                this.callbacks.eachStep.call(this, value);
+            }
+        }
+        
+        if (this.time > this.duration) {
+            this.stop();
+        }
+    },
+    
+    /**
+     * Create empty functions for all easing methods.
+     */
+    CLASS_NAME: "OpenLayers.Tween"
+});
+
+/**
+ * Namespace: OpenLayers.Easing
+ * 
+ * Credits:
+ *      Easing Equations by Robert Penner, <http://www.robertpenner.com/easing/>
+ */
+OpenLayers.Easing = {
+    /**
+     * Create empty functions for all easing methods.
+     */
+    CLASS_NAME: "OpenLayers.Easing"
+};
+
+/**
+ * Namespace: OpenLayers.Easing.Linear
+ */
+OpenLayers.Easing.Linear = {
+    
+    /**
+     * Function: easeIn
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     *
+     * Returns:
+     * {Float}
+     */
+    easeIn: function(t, b, c, d) {
+        return c*t/d + b;
+    },
+    
+    /**
+     * Function: easeOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     *
+     * Returns:
+     * {Float}
+     */
+    easeOut: function(t, b, c, d) {
+        return c*t/d + b;
+    },
+    
+    /**
+     * Function: easeInOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     *
+     * Returns:
+     * {Float}
+     */
+    easeInOut: function(t, b, c, d) {
+        return c*t/d + b;
+    },
+
+    CLASS_NAME: "OpenLayers.Easing.Linear"
+};
+
+/**
+ * Namespace: OpenLayers.Easing.Expo
+ */
+OpenLayers.Easing.Expo = {
+    
+    /**
+     * Function: easeIn
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     *
+     * Returns:
+     * {Float}
+     */
+    easeIn: function(t, b, c, d) {
+        return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
+    },
+    
+    /**
+     * Function: easeOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     *
+     * Returns:
+     * {Float}
+     */
+    easeOut: function(t, b, c, d) {
+        return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
+    },
+    
+    /**
+     * Function: easeInOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     *
+     * Returns:
+     * {Float}
+     */
+    easeInOut: function(t, b, c, d) {
+        if (t==0) return b;
+        if (t==d) return b+c;
+        if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
+        return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
+    },
+
+    CLASS_NAME: "OpenLayers.Easing.Expo"
+};
+
+/**
+ * Namespace: OpenLayers.Easing.Quad
+ */
+OpenLayers.Easing.Quad = {
+    
+    /**
+     * Function: easeIn
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     *
+     * Returns:
+     * {Float}
+     */
+    easeIn: function(t, b, c, d) {
+        return c*(t/=d)*t + b;
+    },
+    
+    /**
+     * Function: easeOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     *
+     * Returns:
+     * {Float}
+     */
+    easeOut: function(t, b, c, d) {
+        return -c *(t/=d)*(t-2) + b;
+    },
+    
+    /**
+     * Function: easeInOut
+     * 
+     * Parameters:
+     * t - {Float} time
+     * b - {Float} beginning position
+     * c - {Float} total change
+     * d - {Float} duration of the transition
+     *
+     * Returns:
+     * {Float}
+     */
+    easeInOut: function(t, b, c, d) {
+        if ((t/=d/2) < 1) return c/2*t*t + b;
+        return -c/2 * ((--t)*(t-2) - 1) + b;
+    },
+
+    CLASS_NAME: "OpenLayers.Easing.Quad"
+};
+/* ======================================================================
+    OpenLayers/Projection.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Util.js
+ */
+
+/**
+ * Namespace: OpenLayers.Projection
+ * Methods for coordinate transforms between coordinate systems.  By default,
+ *     OpenLayers ships with the ability to transform coordinates between
+ *     geographic (EPSG:4326) and web or spherical mercator (EPSG:900913 et al.)
+ *     coordinate reference systems.  See the <transform> method for details
+ *     on usage.
+ *
+ * Additional transforms may be added by using the <proj4js at http://proj4js.org/>
+ *     library.  If the proj4js library is included, the <transform> method 
+ *     will work between any two coordinate reference systems with proj4js 
+ *     definitions.
+ *
+ * If the proj4js library is not included, or if you wish to allow transforms
+ *     between arbitrary coordinate reference systems, use the <addTransform>
+ *     method to register a custom transform method.
+ */
+OpenLayers.Projection = OpenLayers.Class({
+
+    /**
+     * Property: proj
+     * {Object} Proj4js.Proj instance.
+     */
+    proj: null,
+    
+    /**
+     * Property: projCode
+     * {String}
+     */
+    projCode: null,
+    
+    /**
+     * Property: titleRegEx
+     * {RegExp} regular expression to strip the title from a proj4js definition
+     */
+    titleRegEx: /\+title=[^\+]*/,
+
+    /**
+     * Constructor: OpenLayers.Projection
+     * This class offers several methods for interacting with a wrapped 
+     *     pro4js projection object. 
+     *
+     * Parameters:
+     * projCode - {String} A string identifying the Well Known Identifier for
+     *    the projection.
+     * options - {Object} An optional object to set additional properties
+     *     on the projection.
+     *
+     * Returns:
+     * {<OpenLayers.Projection>} A projection object.
+     */
+    initialize: function(projCode, options) {
+        OpenLayers.Util.extend(this, options);
+        this.projCode = projCode;
+        if (typeof Proj4js == "object") {
+            this.proj = new Proj4js.Proj(projCode);
+        }
+    },
+    
+    /**
+     * APIMethod: getCode
+     * Get the string SRS code.
+     *
+     * Returns:
+     * {String} The SRS code.
+     */
+    getCode: function() {
+        return this.proj ? this.proj.srsCode : this.projCode;
+    },
+   
+    /**
+     * APIMethod: getUnits
+     * Get the units string for the projection -- returns null if 
+     *     proj4js is not available.
+     *
+     * Returns:
+     * {String} The units abbreviation.
+     */
+    getUnits: function() {
+        return this.proj ? this.proj.units : null;
+    },
+
+    /**
+     * Method: toString
+     * Convert projection to string (getCode wrapper).
+     *
+     * Returns:
+     * {String} The projection code.
+     */
+    toString: function() {
+        return this.getCode();
+    },
+
+    /**
+     * Method: equals
+     * Test equality of two projection instances.  Determines equality based
+     *     soley on the projection code.
+     *
+     * Returns:
+     * {Boolean} The two projections are equivalent.
+     */
+    equals: function(projection) {
+        var p = projection, equals = false;
+        if (p) {
+            if (!(p instanceof OpenLayers.Projection)) {
+                p = new OpenLayers.Projection(p);
+            }
+            if ((typeof Proj4js == "object") && this.proj.defData && p.proj.defData) {
+                equals = this.proj.defData.replace(this.titleRegEx, "") ==
+                    p.proj.defData.replace(this.titleRegEx, "");
+            } else if (p.getCode) {
+                var source = this.getCode(), target = p.getCode();
+                equals = source == target ||
+                    !!OpenLayers.Projection.transforms[source] &&
+                    OpenLayers.Projection.transforms[source][target] ===
+                        OpenLayers.Projection.nullTransform;
+            }
+        }
+        return equals;   
+    },
+
+    /* Method: destroy
+     * Destroy projection object.
+     */
+    destroy: function() {
+        delete this.proj;
+        delete this.projCode;
+    },
+    
+    CLASS_NAME: "OpenLayers.Projection" 
+});     
+
+/**
+ * Property: transforms
+ * {Object} Transforms is an object, with from properties, each of which may
+ * have a to property. This allows you to define projections without 
+ * requiring support for proj4js to be included.
+ *
+ * This object has keys which correspond to a 'source' projection object.  The
+ * keys should be strings, corresponding to the projection.getCode() value.
+ * Each source projection object should have a set of destination projection
+ * keys included in the object. 
+ * 
+ * Each value in the destination object should be a transformation function,
+ * where the function is expected to be passed an object with a .x and a .y
+ * property.  The function should return the object, with the .x and .y
+ * transformed according to the transformation function.
+ *
+ * Note - Properties on this object should not be set directly.  To add a
+ *     transform method to this object, use the <addTransform> method.  For an
+ *     example of usage, see the OpenLayers.Layer.SphericalMercator file.
+ */
+OpenLayers.Projection.transforms = {};
+
+/**
+ * APIProperty: defaults
+ * {Object} Defaults for the SRS codes known to OpenLayers (currently
+ * EPSG:4326, CRS:84, urn:ogc:def:crs:EPSG:6.6:4326, EPSG:900913, EPSG:3857,
+ * EPSG:102113 and EPSG:102100). Keys are the SRS code, values are units,
+ * maxExtent (the validity extent for the SRS) and yx (true if this SRS is
+ * known to have a reverse axis order).
+ */
+OpenLayers.Projection.defaults = {
+    "EPSG:4326": {
+        units: "degrees",
+        maxExtent: [-180, -90, 180, 90],
+        yx: true
+    },
+    "CRS:84": {
+        units: "degrees",
+        maxExtent: [-180, -90, 180, 90]
+    },
+    "EPSG:900913": {
+        units: "m",
+        maxExtent: [-20037508.34, -20037508.34, 20037508.34, 20037508.34]
+    }
+};
+
+/**
+ * APIMethod: addTransform
+ * Set a custom transform method between two projections.  Use this method in
+ *     cases where the proj4js lib is not available or where custom projections
+ *     need to be handled.
+ *
+ * Parameters:
+ * from - {String} The code for the source projection
+ * to - {String} the code for the destination projection
+ * method - {Function} A function that takes a point as an argument and
+ *     transforms that point from the source to the destination projection
+ *     in place.  The original point should be modified.
+ */
+OpenLayers.Projection.addTransform = function(from, to, method) {
+    if (method === OpenLayers.Projection.nullTransform) {
+        var defaults = OpenLayers.Projection.defaults[from];
+        if (defaults && !OpenLayers.Projection.defaults[to]) {
+            OpenLayers.Projection.defaults[to] = defaults;
+        }
+    }
+    if(!OpenLayers.Projection.transforms[from]) {
+        OpenLayers.Projection.transforms[from] = {};
+    }
+    OpenLayers.Projection.transforms[from][to] = method;
+};
+
+/**
+ * APIMethod: transform
+ * Transform a point coordinate from one projection to another.  Note that
+ *     the input point is transformed in place.
+ * 
+ * Parameters:
+ * point - {<OpenLayers.Geometry.Point> | Object} An object with x and y
+ *     properties representing coordinates in those dimensions.
+ * source - {OpenLayers.Projection} Source map coordinate system
+ * dest - {OpenLayers.Projection} Destination map coordinate system
+ *
+ * Returns:
+ * point - {object} A transformed coordinate.  The original point is modified.
+ */
+OpenLayers.Projection.transform = function(point, source, dest) {
+    if (source && dest) {
+        if (!(source instanceof OpenLayers.Projection)) {
+            source = new OpenLayers.Projection(source);
+        }
+        if (!(dest instanceof OpenLayers.Projection)) {
+            dest = new OpenLayers.Projection(dest);
+        }
+        if (source.proj && dest.proj) {
+            point = Proj4js.transform(source.proj, dest.proj, point);
+        } else {
+            var sourceCode = source.getCode();
+            var destCode = dest.getCode();
+            var transforms = OpenLayers.Projection.transforms;
+            if (transforms[sourceCode] && transforms[sourceCode][destCode]) {
+                transforms[sourceCode][destCode](point);
+            }
+        }
+    }
+    return point;
+};
+
+/**
+ * APIFunction: nullTransform
+ * A null transformation - useful for defining projection aliases when
+ * proj4js is not available:
+ *
+ * (code)
+ * OpenLayers.Projection.addTransform("EPSG:3857", "EPSG:900913",
+ *     OpenLayers.Projection.nullTransform);
+ * OpenLayers.Projection.addTransform("EPSG:900913", "EPSG:3857",
+ *     OpenLayers.Projection.nullTransform);
+ * (end)
+ */
+OpenLayers.Projection.nullTransform = function(point) {
+    return point;
+};
+
+/**
+ * Note: Transforms for web mercator <-> geographic
+ * OpenLayers recognizes EPSG:3857, EPSG:900913, EPSG:102113 and EPSG:102100.
+ * OpenLayers originally started referring to EPSG:900913 as web mercator.
+ * The EPSG has declared EPSG:3857 to be web mercator.
+ * ArcGIS 10 recognizes the EPSG:3857, EPSG:102113, and EPSG:102100 as
+ * equivalent.  See http://blogs.esri.com/Dev/blogs/arcgisserver/archive/2009/11/20/ArcGIS-Online-moving-to-Google-_2F00_-Bing-tiling-scheme_3A00_-What-does-this-mean-for-you_3F00_.aspx#12084.
+ * For geographic, OpenLayers recognizes EPSG:4326, CRS:84 and
+ * urn:ogc:def:crs:EPSG:6.6:4326. OpenLayers also knows about the reverse axis
+ * order for EPSG:4326. 
+ */
+(function() {
+
+    var pole = 20037508.34;
+
+    function inverseMercator(xy) {
+        xy.x = 180 * xy.x / pole;
+        xy.y = 180 / Math.PI * (2 * Math.atan(Math.exp((xy.y / pole) * Math.PI)) - Math.PI / 2);
+        return xy;
+    }
+
+    function forwardMercator(xy) {
+        xy.x = xy.x * pole / 180;
+        var y = Math.log(Math.tan((90 + xy.y) * Math.PI / 360)) / Math.PI * pole;
+        xy.y = Math.max(-20037508.34, Math.min(y, 20037508.34));
+        return xy;
+    }
+
+    function map(base, codes) {
+        var add = OpenLayers.Projection.addTransform;
+        var same = OpenLayers.Projection.nullTransform;
+        var i, len, code, other, j;
+        for (i=0, len=codes.length; i<len; ++i) {
+            code = codes[i];
+            add(base, code, forwardMercator);
+            add(code, base, inverseMercator);
+            for (j=i+1; j<len; ++j) {
+                other = codes[j];
+                add(code, other, same);
+                add(other, code, same);
+            }
+        }
+    }
+    
+    // list of equivalent codes for web mercator
+    var mercator = ["EPSG:900913", "EPSG:3857", "EPSG:102113", "EPSG:102100"],
+        geographic = ["CRS:84", "urn:ogc:def:crs:EPSG:6.6:4326", "EPSG:4326"],
+        i;
+    for (i=mercator.length-1; i>=0; --i) {
+        map(mercator[i], geographic);
+    }
+    for (i=geographic.length-1; i>=0; --i) {
+        map(geographic[i], mercator);
+    }
+
+})();
+/* ======================================================================
+    OpenLayers/Map.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Util.js
+ * @requires OpenLayers/Util/vendorPrefix.js
+ * @requires OpenLayers/Events.js
+ * @requires OpenLayers/Tween.js
+ * @requires OpenLayers/Projection.js
+ */
+
+/**
+ * Class: OpenLayers.Map
+ * Instances of OpenLayers.Map are interactive maps embedded in a web page.
+ * Create a new map with the <OpenLayers.Map> constructor.
+ * 
+ * On their own maps do not provide much functionality.  To extend a map
+ * it's necessary to add controls (<OpenLayers.Control>) and 
+ * layers (<OpenLayers.Layer>) to the map. 
+ */
+OpenLayers.Map = OpenLayers.Class({
+    
+    /**
+     * Constant: Z_INDEX_BASE
+     * {Object} Base z-indexes for different classes of thing 
+     */
+    Z_INDEX_BASE: {
+        BaseLayer: 100,
+        Overlay: 325,
+        Feature: 725,
+        Popup: 750,
+        Control: 1000
+    },
+
+    /**
+     * APIProperty: events
+     * {<OpenLayers.Events>}
+     *
+     * Register a listener for a particular event with the following syntax:
+     * (code)
+     * map.events.register(type, obj, listener);
+     * (end)
+     *
+     * Listeners will be called with a reference to an event object.  The
+     *     properties of this event depends on exactly what happened.
+     *
+     * All event objects have at least the following properties:
+     * object - {Object} A reference to map.events.object.
+     * element - {DOMElement} A reference to map.events.element.
+     *
+     * Browser events have the following additional properties:
+     * xy - {<OpenLayers.Pixel>} The pixel location of the event (relative
+     *     to the the map viewport).
+     *
+     * Supported map event types:
+     * preaddlayer - triggered before a layer has been added.  The event
+     *     object will include a *layer* property that references the layer  
+     *     to be added. When a listener returns "false" the adding will be 
+     *     aborted.
+     * addlayer - triggered after a layer has been added.  The event object
+     *     will include a *layer* property that references the added layer.
+     * preremovelayer - triggered before a layer has been removed. The event
+     *     object will include a *layer* property that references the layer  
+     *     to be removed. When a listener returns "false" the removal will be 
+     *     aborted.
+     * removelayer - triggered after a layer has been removed.  The event
+     *     object will include a *layer* property that references the removed
+     *     layer.
+     * changelayer - triggered after a layer name change, order change,
+     *     opacity change, params change, visibility change (actual visibility,
+     *     not the layer's visibility property) or attribution change (due to
+     *     extent change). Listeners will receive an event object with *layer*
+     *     and *property* properties. The *layer* property will be a reference
+     *     to the changed layer. The *property* property will be a key to the
+     *     changed property (name, order, opacity, params, visibility or
+     *     attribution).
+     * movestart - triggered after the start of a drag, pan, or zoom. The event
+     *     object may include a *zoomChanged* property that tells whether the
+     *     zoom has changed.
+     * move - triggered after each drag, pan, or zoom
+     * moveend - triggered after a drag, pan, or zoom completes
+     * zoomend - triggered after a zoom completes
+     * mouseover - triggered after mouseover the map
+     * mouseout - triggered after mouseout the map
+     * mousemove - triggered after mousemove the map
+     * changebaselayer - triggered after the base layer changes
+     * updatesize - triggered after the <updateSize> method was executed
+     */
+
+    /**
+     * Property: id
+     * {String} Unique identifier for the map
+     */
+    id: null,
+    
+    /**
+     * Property: fractionalZoom
+     * {Boolean} For a base layer that supports it, allow the map resolution
+     *     to be set to a value between one of the values in the resolutions
+     *     array.  Default is false.
+     *
+     * When fractionalZoom is set to true, it is possible to zoom to
+     *     an arbitrary extent.  This requires a base layer from a source
+     *     that supports requests for arbitrary extents (i.e. not cached
+     *     tiles on a regular lattice).  This means that fractionalZoom
+     *     will not work with commercial layers (Google, Yahoo, VE), layers
+     *     using TileCache, or any other pre-cached data sources.
+     *
+     * If you are using fractionalZoom, then you should also use
+     *     <getResolutionForZoom> instead of layer.resolutions[zoom] as the
+     *     former works for non-integer zoom levels.
+     */
+    fractionalZoom: false,
+    
+    /**
+     * APIProperty: events
+     * {<OpenLayers.Events>} An events object that handles all 
+     *                       events on the map
+     */
+    events: null,
+    
+    /**
+     * APIProperty: allOverlays
+     * {Boolean} Allow the map to function with "overlays" only.  Defaults to
+     *     false.  If true, the lowest layer in the draw order will act as
+     *     the base layer.  In addition, if set to true, all layers will
+     *     have isBaseLayer set to false when they are added to the map.
+     *
+     * Note:
+     * If you set map.allOverlays to true, then you *cannot* use
+     *     map.setBaseLayer or layer.setIsBaseLayer.  With allOverlays true,
+     *     the lowest layer in the draw layer is the base layer.  So, to change
+     *     the base layer, use <setLayerIndex> or <raiseLayer> to set the layer
+     *     index to 0.
+     */
+    allOverlays: false,
+
+    /**
+     * APIProperty: div
+     * {DOMElement|String} The element that contains the map (or an id for
+     *     that element).  If the <OpenLayers.Map> constructor is called
+     *     with two arguments, this should be provided as the first argument.
+     *     Alternatively, the map constructor can be called with the options
+     *     object as the only argument.  In this case (one argument), a
+     *     div property may or may not be provided.  If the div property
+     *     is not provided, the map can be rendered to a container later
+     *     using the <render> method.
+     *     
+     * Note:
+     * If you are calling <render> after map construction, do not use
+     *     <maxResolution>  auto.  Instead, divide your <maxExtent> by your
+     *     maximum expected dimension.
+     */
+    div: null,
+    
+    /**
+     * Property: dragging
+     * {Boolean} The map is currently being dragged.
+     */
+    dragging: false,
+
+    /**
+     * Property: size
+     * {<OpenLayers.Size>} Size of the main div (this.div)
+     */
+    size: null,
+    
+    /**
+     * Property: viewPortDiv
+     * {HTMLDivElement} The element that represents the map viewport
+     */
+    viewPortDiv: null,
+
+    /**
+     * Property: layerContainerOrigin
+     * {<OpenLayers.LonLat>} The lonlat at which the later container was
+     *                       re-initialized (on-zoom)
+     */
+    layerContainerOrigin: null,
+
+    /**
+     * Property: layerContainerDiv
+     * {HTMLDivElement} The element that contains the layers.
+     */
+    layerContainerDiv: null,
+
+    /**
+     * APIProperty: layers
+     * {Array(<OpenLayers.Layer>)} Ordered list of layers in the map
+     */
+    layers: null,
+
+    /**
+     * APIProperty: controls
+     * {Array(<OpenLayers.Control>)} List of controls associated with the map.
+     *
+     * If not provided in the map options at construction, the map will
+     *     by default be given the following controls if present in the build:
+     *  - <OpenLayers.Control.Navigation> or <OpenLayers.Control.TouchNavigation>
+     *  - <OpenLayers.Control.Zoom> or <OpenLayers.Control.PanZoom>
+     *  - <OpenLayers.Control.ArgParser>
+     *  - <OpenLayers.Control.Attribution>
+     */
+    controls: null,
+
+    /**
+     * Property: popups
+     * {Array(<OpenLayers.Popup>)} List of popups associated with the map
+     */
+    popups: null,
+
+    /**
+     * APIProperty: baseLayer
+     * {<OpenLayers.Layer>} The currently selected base layer.  This determines
+     * min/max zoom level, projection, etc.
+     */
+    baseLayer: null,
+    
+    /**
+     * Property: center
+     * {<OpenLayers.LonLat>} The current center of the map
+     */
+    center: null,
+
+    /**
+     * Property: resolution
+     * {Float} The resolution of the map.
+     */
+    resolution: null,
+
+    /**
+     * Property: zoom
+     * {Integer} The current zoom level of the map
+     */
+    zoom: 0,    
+
+    /**
+     * Property: panRatio
+     * {Float} The ratio of the current extent within
+     *         which panning will tween.
+     */
+    panRatio: 1.5,    
+
+    /**
+     * APIProperty: options
+     * {Object} The options object passed to the class constructor. Read-only.
+     */
+    options: null,
+
+  // Options
+
+    /**
+     * APIProperty: tileSize
+     * {<OpenLayers.Size>} Set in the map options to override the default tile
+     *                     size for this map.
+     */
+    tileSize: null,
+
+    /**
+     * APIProperty: projection
+     * {String} Set in the map options to specify the default projection 
+     *          for layers added to this map. When using a projection other than EPSG:4326
+     *          (CRS:84, Geographic) or EPSG:3857 (EPSG:900913, Web Mercator),
+     *          also set maxExtent, maxResolution or resolutions.  Default is "EPSG:4326".
+     *          Note that the projection of the map is usually determined
+     *          by that of the current baseLayer (see <baseLayer> and <getProjectionObject>).
+     */
+    projection: "EPSG:4326",    
+        
+    /**
+     * APIProperty: units
+     * {String} The map units.  Possible values are 'degrees' (or 'dd'), 'm', 
+     *     'ft', 'km', 'mi', 'inches'.  Normally taken from the projection.
+     *     Only required if both map and layers do not define a projection,
+     *     or if they define a projection which does not define units
+     */
+    units: null,
+
+    /**
+     * APIProperty: resolutions
+     * {Array(Float)} A list of map resolutions (map units per pixel) in 
+     *     descending order.  If this is not set in the layer constructor, it 
+     *     will be set based on other resolution related properties 
+     *     (maxExtent, maxResolution, maxScale, etc.).
+     */
+    resolutions: null,
+
+    /**
+     * APIProperty: maxResolution
+     * {Float} Required if you are not displaying the whole world on a tile
+     * with the size specified in <tileSize>.
+     */
+    maxResolution: null,
+
+    /**
+     * APIProperty: minResolution
+     * {Float}
+     */
+    minResolution: null,
+
+    /**
+     * APIProperty: maxScale
+     * {Float}
+     */
+    maxScale: null,
+
+    /**
+     * APIProperty: minScale
+     * {Float}
+     */
+    minScale: null,
+
+    /**
+     * APIProperty: maxExtent
+     * {<OpenLayers.Bounds>|Array} If provided as an array, the array
+     *     should consist of four values (left, bottom, right, top).
+     *     The maximum extent for the map.
+     *     Default depends on projection; if this is one of those defined in OpenLayers.Projection.defaults
+     *     (EPSG:4326 or web mercator), maxExtent will be set to the value defined there;
+     *     else, defaults to null.
+     *     To restrict user panning and zooming of the map, use <restrictedExtent> instead.
+     *     The value for <maxExtent> will change calculations for tile URLs.
+     */
+    maxExtent: null,
+    
+    /**
+     * APIProperty: minExtent
+     * {<OpenLayers.Bounds>|Array} If provided as an array, the array
+     *     should consist of four values (left, bottom, right, top).
+     *     The minimum extent for the map.  Defaults to null.
+     */
+    minExtent: null,
+    
+    /**
+     * APIProperty: restrictedExtent
+     * {<OpenLayers.Bounds>|Array} If provided as an array, the array
+     *     should consist of four values (left, bottom, right, top).
+     *     Limit map navigation to this extent where possible.
+     *     If a non-null restrictedExtent is set, panning will be restricted
+     *     to the given bounds.  In addition, zooming to a resolution that
+     *     displays more than the restricted extent will center the map
+     *     on the restricted extent.  If you wish to limit the zoom level
+     *     or resolution, use maxResolution.
+     */
+    restrictedExtent: null,
+
+    /**
+     * APIProperty: numZoomLevels
+     * {Integer} Number of zoom levels for the map.  Defaults to 16.  Set a
+     *           different value in the map options if needed.
+     */
+    numZoomLevels: 16,
+
+    /**
+     * APIProperty: theme
+     * {String} Relative path to a CSS file from which to load theme styles.
+     *          Specify null in the map options (e.g. {theme: null}) if you 
+     *          want to get cascading style declarations - by putting links to 
+     *          stylesheets or style declarations directly in your page.
+     */
+    theme: null,
+    
+    /** 
+     * APIProperty: displayProjection
+     * {<OpenLayers.Projection>} Requires proj4js support for projections other
+     *     than EPSG:4326 or EPSG:900913/EPSG:3857. Projection used by
+     *     several controls to display data to user. If this property is set,
+     *     it will be set on any control which has a null displayProjection
+     *     property at the time the control is added to the map. 
+     */
+    displayProjection: null,
+
+    /**
+     * APIProperty: tileManager
+     * {<OpenLayers.TileManager>|Object} By default, and if the build contains
+     * TileManager.js, the map will use the TileManager to queue image requests
+     * and to cache tile image elements. To create a map without a TileManager
+     * configure the map with tileManager: null. To create a TileManager with
+     * non-default options, supply the options instead or alternatively supply
+     * an instance of {<OpenLayers.TileManager>}.
+     */
+
+    /**
+     * APIProperty: fallThrough
+     * {Boolean} Should OpenLayers allow events on the map to fall through to
+     *           other elements on the page, or should it swallow them? (#457)
+     *           Default is to swallow.
+     */
+    fallThrough: false,
+
+    /**
+     * APIProperty: autoUpdateSize
+     * {Boolean} Should OpenLayers automatically update the size of the map
+     * when the resize event is fired. Default is true.
+     */
+    autoUpdateSize: true,
+    
+    /**
+     * APIProperty: eventListeners
+     * {Object} If set as an option at construction, the eventListeners
+     *     object will be registered with <OpenLayers.Events.on>.  Object
+     *     structure must be a listeners object as shown in the example for
+     *     the events.on method.
+     */
+    eventListeners: null,
+
+    /**
+     * Property: panTween
+     * {<OpenLayers.Tween>} Animated panning tween object, see panTo()
+     */
+    panTween: null,
+
+    /**
+     * APIProperty: panMethod
+     * {Function} The Easing function to be used for tweening.  Default is
+     * OpenLayers.Easing.Expo.easeOut. Setting this to 'null' turns off
+     * animated panning.
+     */
+    panMethod: OpenLayers.Easing.Expo.easeOut,
+    
+    /**
+     * Property: panDuration
+     * {Integer} The number of steps to be passed to the
+     * OpenLayers.Tween.start() method when the map is
+     * panned.
+     * Default is 50.
+     */
+    panDuration: 50,
+    
+    /**
+     * Property: zoomTween
+     * {<OpenLayers.Tween>} Animated zooming tween object, see zoomTo()
+     */
+    zoomTween: null,
+
+    /**
+     * APIProperty: zoomMethod
+     * {Function} The Easing function to be used for tweening.  Default is
+     * OpenLayers.Easing.Quad.easeOut. Setting this to 'null' turns off
+     * animated zooming.
+     */
+    zoomMethod: OpenLayers.Easing.Quad.easeOut,
+    
+    /**
+     * Property: zoomDuration
+     * {Integer} The number of steps to be passed to the
+     * OpenLayers.Tween.start() method when the map is zoomed.
+     * Default is 20.
+     */
+    zoomDuration: 20,
+    
+    /**
+     * Property: paddingForPopups
+     * {<OpenLayers.Bounds>} Outside margin of the popup. Used to prevent 
+     *     the popup from getting too close to the map border.
+     */
+    paddingForPopups : null,
+    
+    /**
+     * Property: layerContainerOriginPx
+     * {Object} Cached object representing the layer container origin (in pixels).
+     */
+    layerContainerOriginPx: null,
+    
+    /**
+     * Property: minPx
+     * {Object} An object with a 'x' and 'y' values that is the lower
+     *     left of maxExtent in viewport pixel space.
+     *     Used to verify in moveByPx that the new location we're moving to
+     *     is valid. It is also used in the getLonLatFromViewPortPx function
+     *     of Layer.
+     */
+    minPx: null,
+    
+    /**
+     * Property: maxPx
+     * {Object} An object with a 'x' and 'y' values that is the top
+     *     right of maxExtent in viewport pixel space.
+     *     Used to verify in moveByPx that the new location we're moving to
+     *     is valid.
+     */
+    maxPx: null,
+    
+    /**
+     * Constructor: OpenLayers.Map
+     * Constructor for a new OpenLayers.Map instance.  There are two possible
+     *     ways to call the map constructor.  See the examples below.
+     *
+     * Parameters:
+     * div - {DOMElement|String}  The element or id of an element in your page
+     *     that will contain the map.  May be omitted if the <div> option is
+     *     provided or if you intend to call the <render> method later.
+     * options - {Object} Optional object with properties to tag onto the map.
+     *
+     * Valid options (in addition to the listed API properties):
+     * center - {<OpenLayers.LonLat>|Array} The default initial center of the map.
+     *     If provided as array, the first value is the x coordinate,
+     *     and the 2nd value is the y coordinate.
+     *     Only specify if <layers> is provided.
+     *     Note that if an ArgParser/Permalink control is present,
+     *     and the querystring contains coordinates, center will be set
+     *     by that, and this option will be ignored.
+     * zoom - {Number} The initial zoom level for the map. Only specify if
+     *     <layers> is provided.
+     *     Note that if an ArgParser/Permalink control is present,
+     *     and the querystring contains a zoom level, zoom will be set
+     *     by that, and this option will be ignored.
+     * extent - {<OpenLayers.Bounds>|Array} The initial extent of the map.
+     *     If provided as an array, the array should consist of
+     *     four values (left, bottom, right, top).
+     *     Only specify if <center> and <zoom> are not provided.
+     * 
+     * Examples:
+     * (code)
+     * // create a map with default options in an element with the id "map1"
+     * var map = new OpenLayers.Map("map1");
+     *
+     * // create a map with non-default options in an element with id "map2"
+     * var options = {
+     *     projection: "EPSG:3857",
+     *     maxExtent: new OpenLayers.Bounds(-200000, -200000, 200000, 200000),
+     *     center: new OpenLayers.LonLat(-12356463.476333, 5621521.4854095)
+     * };
+     * var map = new OpenLayers.Map("map2", options);
+     *
+     * // map with non-default options - same as above but with a single argument,
+     * // a restricted extent, and using arrays for bounds and center
+     * var map = new OpenLayers.Map({
+     *     div: "map_id",
+     *     projection: "EPSG:3857",
+     *     maxExtent: [-18924313.432222, -15538711.094146, 18924313.432222, 15538711.094146],
+     *     restrictedExtent: [-13358338.893333, -9608371.5085962, 13358338.893333, 9608371.5085962],
+     *     center: [-12356463.476333, 5621521.4854095]
+     * });
+     *
+     * // create a map without a reference to a container - call render later
+     * var map = new OpenLayers.Map({
+     *     projection: "EPSG:3857",
+     *     maxExtent: new OpenLayers.Bounds(-200000, -200000, 200000, 200000)
+     * });
+     * (end)
+     */    
+    initialize: function (div, options) {
+        
+        // If only one argument is provided, check if it is an object.
+        if(arguments.length === 1 && typeof div === "object") {
+            options = div;
+            div = options && options.div;
+        }
+
+        // Simple-type defaults are set in class definition. 
+        //  Now set complex-type defaults 
+        this.tileSize = new OpenLayers.Size(OpenLayers.Map.TILE_WIDTH,
+                                            OpenLayers.Map.TILE_HEIGHT);
+        
+        this.paddingForPopups = new OpenLayers.Bounds(15, 15, 15, 15);
+
+        this.theme = OpenLayers._getScriptLocation() + 
+                             'theme/default/style.css'; 
+
+        // backup original options
+        this.options = OpenLayers.Util.extend({}, options);
+
+        // now override default options 
+        OpenLayers.Util.extend(this, options);
+        
+        var projCode = this.projection instanceof OpenLayers.Projection ?
+            this.projection.projCode : this.projection;
+        OpenLayers.Util.applyDefaults(this, OpenLayers.Projection.defaults[projCode]);
+        
+        // allow extents and center to be arrays
+        if (this.maxExtent && !(this.maxExtent instanceof OpenLayers.Bounds)) {
+            this.maxExtent = new OpenLayers.Bounds(this.maxExtent);
+        }
+        if (this.minExtent && !(this.minExtent instanceof OpenLayers.Bounds)) {
+            this.minExtent = new OpenLayers.Bounds(this.minExtent);
+        }
+        if (this.restrictedExtent && !(this.restrictedExtent instanceof OpenLayers.Bounds)) {
+            this.restrictedExtent = new OpenLayers.Bounds(this.restrictedExtent);
+        }
+        if (this.center && !(this.center instanceof OpenLayers.LonLat)) {
+            this.center = new OpenLayers.LonLat(this.center);
+        }
+
+        // initialize layers array
+        this.layers = [];
+
+        this.id = OpenLayers.Util.createUniqueID("OpenLayers.Map_");
+
+        this.div = OpenLayers.Util.getElement(div);
+        if(!this.div) {
+            this.div = document.createElement("div");
+            this.div.style.height = "1px";
+            this.div.style.width = "1px";
+        }
+        
+        OpenLayers.Element.addClass(this.div, 'olMap');
+
+        // the viewPortDiv is the outermost div we modify
+        var id = this.id + "_OpenLayers_ViewPort";
+        this.viewPortDiv = OpenLayers.Util.createDiv(id, null, null, null,
+                                                     "relative", null,
+                                                     "hidden");
+        this.viewPortDiv.style.width = "100%";
+        this.viewPortDiv.style.height = "100%";
+        this.viewPortDiv.className = "olMapViewport";
+        this.div.appendChild(this.viewPortDiv);
+
+        this.events = new OpenLayers.Events(
+            this, this.viewPortDiv, null, this.fallThrough, 
+            {includeXY: true}
+        );
+        
+        if (OpenLayers.TileManager && this.tileManager !== null) {
+            if (!(this.tileManager instanceof OpenLayers.TileManager)) {
+                this.tileManager = new OpenLayers.TileManager(this.tileManager);
+            }
+            this.tileManager.addMap(this);
+        }
+
+        // the layerContainerDiv is the one that holds all the layers
+        id = this.id + "_OpenLayers_Container";
+        this.layerContainerDiv = OpenLayers.Util.createDiv(id);
+        this.layerContainerDiv.style.zIndex=this.Z_INDEX_BASE['Popup']-1;
+        this.layerContainerOriginPx = {x: 0, y: 0};
+        this.applyTransform();
+        
+        this.viewPortDiv.appendChild(this.layerContainerDiv);
+
+        this.updateSize();
+        if(this.eventListeners instanceof Object) {
+            this.events.on(this.eventListeners);
+        }
+
+        if (this.autoUpdateSize === true) {
+            // updateSize on catching the window's resize
+            // Note that this is ok, as updateSize() does nothing if the 
+            // map's size has not actually changed.
+            this.updateSizeDestroy = OpenLayers.Function.bind(this.updateSize, 
+                this);
+            OpenLayers.Event.observe(window, 'resize',
+                            this.updateSizeDestroy);
+        }
+        
+        // only append link stylesheet if the theme property is set
+        if(this.theme) {
+            // check existing links for equivalent url
+            var addNode = true;
+            var nodes = document.getElementsByTagName('link');
+            for(var i=0, len=nodes.length; i<len; ++i) {
+                if(OpenLayers.Util.isEquivalentUrl(nodes.item(i).href,
+                                                   this.theme)) {
+                    addNode = false;
+                    break;
+                }
+            }
+            // only add a new node if one with an equivalent url hasn't already
+            // been added
+            if(addNode) {
+                var cssNode = document.createElement('link');
+                cssNode.setAttribute('rel', 'stylesheet');
+                cssNode.setAttribute('type', 'text/css');
+                cssNode.setAttribute('href', this.theme);
+                document.getElementsByTagName('head')[0].appendChild(cssNode);
+            }
+        }
+        
+        if (this.controls == null) { // default controls
+            this.controls = [];
+            if (OpenLayers.Control != null) { // running full or lite?
+                // Navigation or TouchNavigation depending on what is in build
+                if (OpenLayers.Control.Navigation) {
+                    this.controls.push(new OpenLayers.Control.Navigation());
+                } else if (OpenLayers.Control.TouchNavigation) {
+                    this.controls.push(new OpenLayers.Control.TouchNavigation());
+                }
+                if (OpenLayers.Control.Zoom) {
+                    this.controls.push(new OpenLayers.Control.Zoom());
+                } else if (OpenLayers.Control.PanZoom) {
+                    this.controls.push(new OpenLayers.Control.PanZoom());
+                }
+
+                if (OpenLayers.Control.ArgParser) {
+                    this.controls.push(new OpenLayers.Control.ArgParser());
+                }
+                if (OpenLayers.Control.Attribution) {
+                    this.controls.push(new OpenLayers.Control.Attribution());
+                }
+            }
+        }
+
+        for(var i=0, len=this.controls.length; i<len; i++) {
+            this.addControlToMap(this.controls[i]);
+        }
+
+        this.popups = [];
+
+        this.unloadDestroy = OpenLayers.Function.bind(this.destroy, this);
+        
+
+        // always call map.destroy()
+        OpenLayers.Event.observe(window, 'unload', this.unloadDestroy);
+        
+        // add any initial layers
+        if (options && options.layers) {
+            /** 
+             * If you have set options.center, the map center property will be
+             * set at this point.  However, since setCenter has not been called,
+             * addLayers gets confused.  So we delete the map center in this 
+             * case.  Because the check below uses options.center, it will
+             * be properly set below.
+             */
+            delete this.center;
+            delete this.zoom;
+            this.addLayers(options.layers);
+            // set center (and optionally zoom)
+            if (options.center && !this.getCenter()) {
+                // zoom can be undefined here
+                this.setCenter(options.center, options.zoom);
+            }
+        }
+
+        if (this.panMethod) {
+            this.panTween = new OpenLayers.Tween(this.panMethod);
+        }
+        if (this.zoomMethod && this.applyTransform.transform) {
+            this.zoomTween = new OpenLayers.Tween(this.zoomMethod);
+        }
+    },
+
+    /** 
+     * APIMethod: getViewport
+     * Get the DOMElement representing the view port.
+     *
+     * Returns:
+     * {DOMElement}
+     */
+    getViewport: function() {
+        return this.viewPortDiv;
+    },
+    
+    /**
+     * APIMethod: render
+     * Render the map to a specified container.
+     * 
+     * Parameters:
+     * div - {String|DOMElement} The container that the map should be rendered
+     *     to. If different than the current container, the map viewport
+     *     will be moved from the current to the new container.
+     */
+    render: function(div) {
+        this.div = OpenLayers.Util.getElement(div);
+        OpenLayers.Element.addClass(this.div, 'olMap');
+        this.viewPortDiv.parentNode.removeChild(this.viewPortDiv);
+        this.div.appendChild(this.viewPortDiv);
+        this.updateSize();
+    },
+
+    /**
+     * Method: unloadDestroy
+     * Function that is called to destroy the map on page unload. stored here
+     *     so that if map is manually destroyed, we can unregister this.
+     */
+    unloadDestroy: null,
+    
+    /**
+     * Method: updateSizeDestroy
+     * When the map is destroyed, we need to stop listening to updateSize
+     *    events: this method stores the function we need to unregister in 
+     *    non-IE browsers.
+     */
+    updateSizeDestroy: null,
+
+    /**
+     * APIMethod: destroy
+     * Destroy this map.
+     *    Note that if you are using an application which removes a container
+     *    of the map from the DOM, you need to ensure that you destroy the
+     *    map *before* this happens; otherwise, the page unload handler
+     *    will fail because the DOM elements that map.destroy() wants
+     *    to clean up will be gone. (See 
+     *    http://trac.osgeo.org/openlayers/ticket/2277 for more information).
+     *    This will apply to GeoExt and also to other applications which
+     *    modify the DOM of the container of the OpenLayers Map.
+     */
+    destroy:function() {
+        // if unloadDestroy is null, we've already been destroyed
+        if (!this.unloadDestroy) {
+            return false;
+        }
+        
+        // make sure panning doesn't continue after destruction
+        if(this.panTween) {
+            this.panTween.stop();
+            this.panTween = null;
+        }
+        // make sure zooming doesn't continue after destruction
+        if(this.zoomTween) {
+            this.zoomTween.stop();
+            this.zoomTween = null;
+        }
+
+        // map has been destroyed. dont do it again!
+        OpenLayers.Event.stopObserving(window, 'unload', this.unloadDestroy);
+        this.unloadDestroy = null;
+
+        if (this.updateSizeDestroy) {
+            OpenLayers.Event.stopObserving(window, 'resize', 
+                                           this.updateSizeDestroy);
+        }
+        
+        this.paddingForPopups = null;    
+
+        if (this.controls != null) {
+            for (var i = this.controls.length - 1; i>=0; --i) {
+                this.controls[i].destroy();
+            } 
+            this.controls = null;
+        }
+        if (this.layers != null) {
+            for (var i = this.layers.length - 1; i>=0; --i) {
+                //pass 'false' to destroy so that map wont try to set a new 
+                // baselayer after each baselayer is removed
+                this.layers[i].destroy(false);
+            } 
+            this.layers = null;
+        }
+        if (this.viewPortDiv && this.viewPortDiv.parentNode) {
+            this.viewPortDiv.parentNode.removeChild(this.viewPortDiv);
+        }
+        this.viewPortDiv = null;
+        
+        if (this.tileManager) {
+            this.tileManager.removeMap(this);
+            this.tileManager = null;
+        }
+
+        if(this.eventListeners) {
+            this.events.un(this.eventListeners);
+            this.eventListeners = null;
+        }
+        this.events.destroy();
+        this.events = null;
+
+        this.options = null;
+    },
+
+    /**
+     * APIMethod: setOptions
+     * Change the map options
+     *
+     * Parameters:
+     * options - {Object} Hashtable of options to tag to the map
+     */
+    setOptions: function(options) {
+        var updatePxExtent = this.minPx &&
+            options.restrictedExtent != this.restrictedExtent;
+        OpenLayers.Util.extend(this, options);
+        // force recalculation of minPx and maxPx
+        updatePxExtent && this.moveTo(this.getCachedCenter(), this.zoom, {
+            forceZoomChange: true
+        });
+    },
+
+    /**
+     * APIMethod: getTileSize
+     * Get the tile size for the map
+     *
+     * Returns:
+     * {<OpenLayers.Size>}
+     */
+     getTileSize: function() {
+         return this.tileSize;
+     },
+
+
+    /**
+     * APIMethod: getBy
+     * Get a list of objects given a property and a match item.
+     *
+     * Parameters:
+     * array - {String} A property on the map whose value is an array.
+     * property - {String} A property on each item of the given array.
+     * match - {String | Object} A string to match.  Can also be a regular
+     *     expression literal or object.  In addition, it can be any object
+     *     with a method named test.  For reqular expressions or other, if
+     *     match.test(map[array][i][property]) evaluates to true, the item will
+     *     be included in the array returned.  If no items are found, an empty
+     *     array is returned.
+     *
+     * Returns:
+     * {Array} An array of items where the given property matches the given
+     *     criteria.
+     */
+    getBy: function(array, property, match) {
+        var test = (typeof match.test == "function");
+        var found = OpenLayers.Array.filter(this[array], function(item) {
+            return item[property] == match || (test && match.test(item[property]));
+        });
+        return found;
+    },
+
+    /**
+     * APIMethod: getLayersBy
+     * Get a list of layers with properties matching the given criteria.
+     *
+     * Parameters:
+     * property - {String} A layer property to be matched.
+     * match - {String | Object} A string to match.  Can also be a regular
+     *     expression literal or object.  In addition, it can be any object
+     *     with a method named test.  For reqular expressions or other, if
+     *     match.test(layer[property]) evaluates to true, the layer will be
+     *     included in the array returned.  If no layers are found, an empty
+     *     array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Layer>)} A list of layers matching the given criteria.
+     *     An empty array is returned if no matches are found.
+     */
+    getLayersBy: function(property, match) {
+        return this.getBy("layers", property, match);
+    },
+
+    /**
+     * APIMethod: getLayersByName
+     * Get a list of layers with names matching the given name.
+     *
+     * Parameters:
+     * match - {String | Object} A layer name.  The name can also be a regular
+     *     expression literal or object.  In addition, it can be any object
+     *     with a method named test.  For reqular expressions or other, if
+     *     name.test(layer.name) evaluates to true, the layer will be included
+     *     in the list of layers returned.  If no layers are found, an empty
+     *     array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Layer>)} A list of layers matching the given name.
+     *     An empty array is returned if no matches are found.
+     */
+    getLayersByName: function(match) {
+        return this.getLayersBy("name", match);
+    },
+
+    /**
+     * APIMethod: getLayersByClass
+     * Get a list of layers of a given class (CLASS_NAME).
+     *
+     * Parameters:
+     * match - {String | Object} A layer class name.  The match can also be a
+     *     regular expression literal or object.  In addition, it can be any
+     *     object with a method named test.  For reqular expressions or other,
+     *     if type.test(layer.CLASS_NAME) evaluates to true, the layer will
+     *     be included in the list of layers returned.  If no layers are
+     *     found, an empty array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Layer>)} A list of layers matching the given class.
+     *     An empty array is returned if no matches are found.
+     */
+    getLayersByClass: function(match) {
+        return this.getLayersBy("CLASS_NAME", match);
+    },
+
+    /**
+     * APIMethod: getControlsBy
+     * Get a list of controls with properties matching the given criteria.
+     *
+     * Parameters:
+     * property - {String} A control property to be matched.
+     * match - {String | Object} A string to match.  Can also be a regular
+     *     expression literal or object.  In addition, it can be any object
+     *     with a method named test.  For reqular expressions or other, if
+     *     match.test(layer[property]) evaluates to true, the layer will be
+     *     included in the array returned.  If no layers are found, an empty
+     *     array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Control>)} A list of controls matching the given
+     *     criteria.  An empty array is returned if no matches are found.
+     */
+    getControlsBy: function(property, match) {
+        return this.getBy("controls", property, match);
+    },
+
+    /**
+     * APIMethod: getControlsByClass
+     * Get a list of controls of a given class (CLASS_NAME).
+     *
+     * Parameters:
+     * match - {String | Object} A control class name.  The match can also be a
+     *     regular expression literal or object.  In addition, it can be any
+     *     object with a method named test.  For reqular expressions or other,
+     *     if type.test(control.CLASS_NAME) evaluates to true, the control will
+     *     be included in the list of controls returned.  If no controls are
+     *     found, an empty array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Control>)} A list of controls matching the given class.
+     *     An empty array is returned if no matches are found.
+     */
+    getControlsByClass: function(match) {
+        return this.getControlsBy("CLASS_NAME", match);
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                  Layer Functions                     */
+  /*                                                      */
+  /*     The following functions deal with adding and     */
+  /*        removing Layers to and from the Map           */
+  /*                                                      */
+  /********************************************************/         
+
+    /**
+     * APIMethod: getLayer
+     * Get a layer based on its id
+     *
+     * Parameters:
+     * id - {String} A layer id
+     *
+     * Returns:
+     * {<OpenLayers.Layer>} The Layer with the corresponding id from the map's 
+     *                      layer collection, or null if not found.
+     */
+    getLayer: function(id) {
+        var foundLayer = null;
+        for (var i=0, len=this.layers.length; i<len; i++) {
+            var layer = this.layers[i];
+            if (layer.id == id) {
+                foundLayer = layer;
+                break;
+            }
+        }
+        return foundLayer;
+    },
+
+    /**
+    * Method: setLayerZIndex
+    * 
+    * Parameters:
+    * layer - {<OpenLayers.Layer>} 
+    * zIdx - {int} 
+    */    
+    setLayerZIndex: function (layer, zIdx) {
+        layer.setZIndex(
+            this.Z_INDEX_BASE[layer.isBaseLayer ? 'BaseLayer' : 'Overlay']
+            + zIdx * 5 );
+    },
+
+    /**
+     * Method: resetLayersZIndex
+     * Reset each layer's z-index based on layer's array index
+     */
+    resetLayersZIndex: function() {
+        for (var i=0, len=this.layers.length; i<len; i++) {
+            var layer = this.layers[i];
+            this.setLayerZIndex(layer, i);
+        }
+    },
+
+    /**
+    * APIMethod: addLayer
+    *
+    * Parameters:
+    * layer - {<OpenLayers.Layer>} 
+    *
+    * Returns:
+    * {Boolean} True if the layer has been added to the map.
+    */    
+    addLayer: function (layer) {
+        for(var i = 0, len = this.layers.length; i < len; i++) {
+            if (this.layers[i] == layer) {
+                return false;
+            }
+        }
+        if (this.events.triggerEvent("preaddlayer", {layer: layer}) === false) {
+            return false;
+        }
+        if(this.allOverlays) {
+            layer.isBaseLayer = false;
+        }
+        
+        layer.div.className = "olLayerDiv";
+        layer.div.style.overflow = "";
+        this.setLayerZIndex(layer, this.layers.length);
+
+        if (layer.isFixed) {
+            this.viewPortDiv.appendChild(layer.div);
+        } else {
+            this.layerContainerDiv.appendChild(layer.div);
+        }
+        this.layers.push(layer);
+        layer.setMap(this);
+
+        if (layer.isBaseLayer || (this.allOverlays && !this.baseLayer))  {
+            if (this.baseLayer == null) {
+                // set the first baselaye we add as the baselayer
+                this.setBaseLayer(layer);
+            } else {
+                layer.setVisibility(false);
+            }
+        } else {
+            layer.redraw();
+        }
+
+        this.events.triggerEvent("addlayer", {layer: layer});
+        layer.events.triggerEvent("added", {map: this, layer: layer});
+        layer.afterAdd();
+
+        return true;
+    },
+
+    /**
+    * APIMethod: addLayers 
+    *
+    * Parameters:
+    * layers - {Array(<OpenLayers.Layer>)} 
+    */    
+    addLayers: function (layers) {
+        for (var i=0, len=layers.length; i<len; i++) {
+            this.addLayer(layers[i]);
+        }
+    },
+
+    /** 
+     * APIMethod: removeLayer
+     * Removes a layer from the map by removing its visual element (the 
+     *   layer.div property), then removing it from the map's internal list 
+     *   of layers, setting the layer's map property to null. 
+     * 
+     *   a "removelayer" event is triggered.
+     * 
+     *   very worthy of mention is that simply removing a layer from a map
+     *   will not cause the removal of any popups which may have been created
+     *   by the layer. this is due to the fact that it was decided at some
+     *   point that popups would not belong to layers. thus there is no way 
+     *   for us to know here to which layer the popup belongs.
+     *    
+     *     A simple solution to this is simply to call destroy() on the layer.
+     *     the default OpenLayers.Layer class's destroy() function
+     *     automatically takes care to remove itself from whatever map it has
+     *     been attached to. 
+     * 
+     *     The correct solution is for the layer itself to register an 
+     *     event-handler on "removelayer" and when it is called, if it 
+     *     recognizes itself as the layer being removed, then it cycles through
+     *     its own personal list of popups, removing them from the map.
+     * 
+     * Parameters:
+     * layer - {<OpenLayers.Layer>} 
+     * setNewBaseLayer - {Boolean} Default is true
+     */
+    removeLayer: function(layer, setNewBaseLayer) {
+        if (this.events.triggerEvent("preremovelayer", {layer: layer}) === false) {
+            return;
+        }
+        if (setNewBaseLayer == null) {
+            setNewBaseLayer = true;
+        }
+
+        if (layer.isFixed) {
+            this.viewPortDiv.removeChild(layer.div);
+        } else {
+            this.layerContainerDiv.removeChild(layer.div);
+        }
+        OpenLayers.Util.removeItem(this.layers, layer);
+        layer.removeMap(this);
+        layer.map = null;
+
+        // if we removed the base layer, need to set a new one
+        if(this.baseLayer == layer) {
+            this.baseLayer = null;
+            if(setNewBaseLayer) {
+                for(var i=0, len=this.layers.length; i<len; i++) {
+                    var iLayer = this.layers[i];
+                    if (iLayer.isBaseLayer || this.allOverlays) {
+                        this.setBaseLayer(iLayer);
+                        break;
+                    }
+                }
+            }
+        }
+
+        this.resetLayersZIndex();
+
+        this.events.triggerEvent("removelayer", {layer: layer});
+        layer.events.triggerEvent("removed", {map: this, layer: layer});
+    },
+
+    /**
+     * APIMethod: getNumLayers
+     * 
+     * Returns:
+     * {Int} The number of layers attached to the map.
+     */
+    getNumLayers: function () {
+        return this.layers.length;
+    },
+
+    /** 
+     * APIMethod: getLayerIndex
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer>}
+     *
+     * Returns:
+     * {Integer} The current (zero-based) index of the given layer in the map's
+     *           layer stack. Returns -1 if the layer isn't on the map.
+     */
+    getLayerIndex: function (layer) {
+        return OpenLayers.Util.indexOf(this.layers, layer);
+    },
+    
+    /** 
+     * APIMethod: setLayerIndex
+     * Move the given layer to the specified (zero-based) index in the layer
+     *     list, changing its z-index in the map display. Use
+     *     map.getLayerIndex() to find out the current index of a layer. Note
+     *     that this cannot (or at least should not) be effectively used to
+     *     raise base layers above overlays.
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer>} 
+     * idx - {int} 
+     */
+    setLayerIndex: function (layer, idx) {
+        var base = this.getLayerIndex(layer);
+        if (idx < 0) {
+            idx = 0;
+        } else if (idx > this.layers.length) {
+            idx = this.layers.length;
+        }
+        if (base != idx) {
+            this.layers.splice(base, 1);
+            this.layers.splice(idx, 0, layer);
+            for (var i=0, len=this.layers.length; i<len; i++) {
+                this.setLayerZIndex(this.layers[i], i);
+            }
+            this.events.triggerEvent("changelayer", {
+                layer: layer, property: "order"
+            });
+            if(this.allOverlays) {
+                if(idx === 0) {
+                    this.setBaseLayer(layer);
+                } else if(this.baseLayer !== this.layers[0]) {
+                    this.setBaseLayer(this.layers[0]);
+                }
+            }
+        }
+    },
+
+    /** 
+     * APIMethod: raiseLayer
+     * Change the index of the given layer by delta. If delta is positive, 
+     *     the layer is moved up the map's layer stack; if delta is negative,
+     *     the layer is moved down.  Again, note that this cannot (or at least
+     *     should not) be effectively used to raise base layers above overlays.
+     *
+     * Paremeters:
+     * layer - {<OpenLayers.Layer>} 
+     * delta - {int} 
+     */
+    raiseLayer: function (layer, delta) {
+        var idx = this.getLayerIndex(layer) + delta;
+        this.setLayerIndex(layer, idx);
+    },
+    
+    /** 
+     * APIMethod: setBaseLayer
+     * Allows user to specify one of the currently-loaded layers as the Map's
+     *     new base layer.
+     * 
+     * Parameters:
+     * newBaseLayer - {<OpenLayers.Layer>}
+     */
+    setBaseLayer: function(newBaseLayer) {
+        
+        if (newBaseLayer != this.baseLayer) {
+          
+            // ensure newBaseLayer is already loaded
+            if (OpenLayers.Util.indexOf(this.layers, newBaseLayer) != -1) {
+
+                // preserve center and scale when changing base layers
+                var center = this.getCachedCenter();
+                var newResolution = OpenLayers.Util.getResolutionFromScale(
+                    this.getScale(), newBaseLayer.units
+                );
+
+                // make the old base layer invisible 
+                if (this.baseLayer != null && !this.allOverlays) {
+                    this.baseLayer.setVisibility(false);
+                }
+
+                // set new baselayer
+                this.baseLayer = newBaseLayer;
+                
+                if(!this.allOverlays || this.baseLayer.visibility) {
+                    this.baseLayer.setVisibility(true);
+                    // Layer may previously have been visible but not in range.
+                    // In this case we need to redraw it to make it visible.
+                    if (this.baseLayer.inRange === false) {
+                        this.baseLayer.redraw();
+                    }
+                }
+
+                // recenter the map
+                if (center != null) {
+                    // new zoom level derived from old scale
+                    var newZoom = this.getZoomForResolution(
+                        newResolution || this.resolution, true
+                    );
+                    // zoom and force zoom change
+                    this.setCenter(center, newZoom, false, true);
+                }
+
+                this.events.triggerEvent("changebaselayer", {
+                    layer: this.baseLayer
+                });
+            }        
+        }
+    },
+
+
+  /********************************************************/
+  /*                                                      */
+  /*                 Control Functions                    */
+  /*                                                      */
+  /*     The following functions deal with adding and     */
+  /*        removing Controls to and from the Map         */
+  /*                                                      */
+  /********************************************************/         
+
+    /**
+     * APIMethod: addControl
+     * Add the passed over control to the map. Optionally 
+     *     position the control at the given pixel.
+     * 
+     * Parameters:
+     * control - {<OpenLayers.Control>}
+     * px - {<OpenLayers.Pixel>}
+     */    
+    addControl: function (control, px) {
+        this.controls.push(control);
+        this.addControlToMap(control, px);
+    },
+    
+    /**
+     * APIMethod: addControls
+     * Add all of the passed over controls to the map. 
+     *     You can pass over an optional second array
+     *     with pixel-objects to position the controls.
+     *     The indices of the two arrays should match and
+     *     you can add null as pixel for those controls 
+     *     you want to be autopositioned.   
+     *     
+     * Parameters:
+     * controls - {Array(<OpenLayers.Control>)}
+     * pixels - {Array(<OpenLayers.Pixel>)}
+     */    
+    addControls: function (controls, pixels) {
+        var pxs = (arguments.length === 1) ? [] : pixels;
+        for (var i=0, len=controls.length; i<len; i++) {
+            var ctrl = controls[i];
+            var px = (pxs[i]) ? pxs[i] : null;
+            this.addControl( ctrl, px );
+        }
+    },
+
+    /**
+     * Method: addControlToMap
+     * 
+     * Parameters:
+     * 
+     * control - {<OpenLayers.Control>}
+     * px - {<OpenLayers.Pixel>}
+     */    
+    addControlToMap: function (control, px) {
+        // If a control doesn't have a div at this point, it belongs in the
+        // viewport.
+        control.outsideViewport = (control.div != null);
+        
+        // If the map has a displayProjection, and the control doesn't, set 
+        // the display projection.
+        if (this.displayProjection && !control.displayProjection) {
+            control.displayProjection = this.displayProjection;
+        }    
+        
+        control.setMap(this);
+        var div = control.draw(px);
+        if (div) {
+            if(!control.outsideViewport) {
+                div.style.zIndex = this.Z_INDEX_BASE['Control'] +
+                                    this.controls.length;
+                this.viewPortDiv.appendChild( div );
+            }
+        }
+        if(control.autoActivate) {
+            control.activate();
+        }
+    },
+    
+    /**
+     * APIMethod: getControl
+     * 
+     * Parameters:
+     * id - {String} ID of the control to return.
+     * 
+     * Returns:
+     * {<OpenLayers.Control>} The control from the map's list of controls 
+     *                        which has a matching 'id'. If none found, 
+     *                        returns null.
+     */    
+    getControl: function (id) {
+        var returnControl = null;
+        for(var i=0, len=this.controls.length; i<len; i++) {
+            var control = this.controls[i];
+            if (control.id == id) {
+                returnControl = control;
+                break;
+            }
+        }
+        return returnControl;
+    },
+    
+    /** 
+     * APIMethod: removeControl
+     * Remove a control from the map. Removes the control both from the map 
+     *     object's internal array of controls, as well as from the map's 
+     *     viewPort (assuming the control was not added outsideViewport)
+     * 
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control to remove.
+     */    
+    removeControl: function (control) {
+        //make sure control is non-null and actually part of our map
+        if ( (control) && (control == this.getControl(control.id)) ) {
+            if (control.div && (control.div.parentNode == this.viewPortDiv)) {
+                this.viewPortDiv.removeChild(control.div);
+            }
+            OpenLayers.Util.removeItem(this.controls, control);
+        }
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                  Popup Functions                     */
+  /*                                                      */
+  /*     The following functions deal with adding and     */
+  /*        removing Popups to and from the Map           */
+  /*                                                      */
+  /********************************************************/         
+
+    /** 
+     * APIMethod: addPopup
+     * 
+     * Parameters:
+     * popup - {<OpenLayers.Popup>}
+     * exclusive - {Boolean} If true, closes all other popups first
+     */
+    addPopup: function(popup, exclusive) {
+
+        if (exclusive) {
+            //remove all other popups from screen
+            for (var i = this.popups.length - 1; i >= 0; --i) {
+                this.removePopup(this.popups[i]);
+            }
+        }
+
+        popup.map = this;
+        this.popups.push(popup);
+        var popupDiv = popup.draw();
+        if (popupDiv) {
+            popupDiv.style.zIndex = this.Z_INDEX_BASE['Popup'] +
+                                    this.popups.length;
+            this.layerContainerDiv.appendChild(popupDiv);
+        }
+    },
+    
+    /** 
+    * APIMethod: removePopup
+    * 
+    * Parameters:
+    * popup - {<OpenLayers.Popup>}
+    */
+    removePopup: function(popup) {
+        OpenLayers.Util.removeItem(this.popups, popup);
+        if (popup.div) {
+            try { this.layerContainerDiv.removeChild(popup.div); }
+            catch (e) { } // Popups sometimes apparently get disconnected
+                      // from the layerContainerDiv, and cause complaints.
+        }
+        popup.map = null;
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*              Container Div Functions                 */
+  /*                                                      */
+  /*   The following functions deal with the access to    */
+  /*    and maintenance of the size of the container div  */
+  /*                                                      */
+  /********************************************************/     
+
+    /**
+     * APIMethod: getSize
+     * 
+     * Returns:
+     * {<OpenLayers.Size>} An <OpenLayers.Size> object that represents the 
+     *                     size, in pixels, of the div into which OpenLayers 
+     *                     has been loaded. 
+     *                     Note - A clone() of this locally cached variable is
+     *                     returned, so as not to allow users to modify it.
+     */
+    getSize: function () {
+        var size = null;
+        if (this.size != null) {
+            size = this.size.clone();
+        }
+        return size;
+    },
+
+    /**
+     * APIMethod: updateSize
+     * This function should be called by any external code which dynamically
+     *     changes the size of the map div (because mozilla wont let us catch 
+     *     the "onresize" for an element)
+     */
+    updateSize: function() {
+        // the div might have moved on the page, also
+        var newSize = this.getCurrentSize();
+        if (newSize && !isNaN(newSize.h) && !isNaN(newSize.w)) {
+            this.events.clearMouseCache();
+            var oldSize = this.getSize();
+            if (oldSize == null) {
+                this.size = oldSize = newSize;
+            }
+            if (!newSize.equals(oldSize)) {
+                
+                // store the new size
+                this.size = newSize;
+    
+                //notify layers of mapresize
+                for(var i=0, len=this.layers.length; i<len; i++) {
+                    this.layers[i].onMapResize();                
+                }
+    
+                var center = this.getCachedCenter();
+    
+                if (this.baseLayer != null && center != null) {
+                    var zoom = this.getZoom();
+                    this.zoom = null;
+                    this.setCenter(center, zoom);
+                }
+    
+            }
+        }
+        this.events.triggerEvent("updatesize");
+    },
+    
+    /**
+     * Method: getCurrentSize
+     * 
+     * Returns:
+     * {<OpenLayers.Size>} A new <OpenLayers.Size> object with the dimensions 
+     *                     of the map div
+     */
+    getCurrentSize: function() {
+
+        var size = new OpenLayers.Size(this.div.clientWidth, 
+                                       this.div.clientHeight);
+
+        if (size.w == 0 && size.h == 0 || isNaN(size.w) && isNaN(size.h)) {
+            size.w = this.div.offsetWidth;
+            size.h = this.div.offsetHeight;
+        }
+        if (size.w == 0 && size.h == 0 || isNaN(size.w) && isNaN(size.h)) {
+            size.w = parseInt(this.div.style.width);
+            size.h = parseInt(this.div.style.height);
+        }
+        return size;
+    },
+
+    /** 
+     * Method: calculateBounds
+     * 
+     * Parameters:
+     * center - {<OpenLayers.LonLat>} Default is this.getCenter()
+     * resolution - {float} Default is this.getResolution() 
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} A bounds based on resolution, center, and 
+     *                       current mapsize.
+     */
+    calculateBounds: function(center, resolution) {
+
+        var extent = null;
+        
+        if (center == null) {
+            center = this.getCachedCenter();
+        }                
+        if (resolution == null) {
+            resolution = this.getResolution();
+        }
+    
+        if ((center != null) && (resolution != null)) {
+            var halfWDeg = (this.size.w * resolution) / 2;
+            var halfHDeg = (this.size.h * resolution) / 2;
+        
+            extent = new OpenLayers.Bounds(center.lon - halfWDeg,
+                                           center.lat - halfHDeg,
+                                           center.lon + halfWDeg,
+                                           center.lat + halfHDeg);
+        }
+
+        return extent;
+    },
+
+
+  /********************************************************/
+  /*                                                      */
+  /*            Zoom, Center, Pan Functions               */
+  /*                                                      */
+  /*    The following functions handle the validation,    */
+  /*   getting and setting of the Zoom Level and Center   */
+  /*       as well as the panning of the Map              */
+  /*                                                      */
+  /********************************************************/
+    /**
+     * APIMethod: getCenter
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>}
+     */
+    getCenter: function () {
+        var center = null;
+        var cachedCenter = this.getCachedCenter();
+        if (cachedCenter) {
+            center = cachedCenter.clone();
+        }
+        return center;
+    },
+
+    /**
+     * Method: getCachedCenter
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>}
+     */
+    getCachedCenter: function() {
+        if (!this.center && this.size) {
+            this.center = this.getLonLatFromViewPortPx({
+                x: this.size.w / 2,
+                y: this.size.h / 2
+            });
+        }
+        return this.center;
+    },
+
+    /**
+     * APIMethod: getZoom
+     * 
+     * Returns:
+     * {Integer}
+     */
+    getZoom: function () {
+        return this.zoom;
+    },
+    
+    /** 
+     * APIMethod: pan
+     * Allows user to pan by a value of screen pixels
+     * 
+     * Parameters:
+     * dx - {Integer}
+     * dy - {Integer}
+     * options - {Object} Options to configure panning:
+     *  - *animate* {Boolean} Use panTo instead of setCenter. Default is true.
+     *  - *dragging* {Boolean} Call setCenter with dragging true.  Default is
+     *    false.
+     */
+    pan: function(dx, dy, options) {
+        options = OpenLayers.Util.applyDefaults(options, {
+            animate: true,
+            dragging: false
+        });
+        if (options.dragging) {
+            if (dx != 0 || dy != 0) {
+                this.moveByPx(dx, dy);
+            }
+        } else {
+            // getCenter
+            var centerPx = this.getViewPortPxFromLonLat(this.getCachedCenter());
+
+            // adjust
+            var newCenterPx = centerPx.add(dx, dy);
+
+            if (this.dragging || !newCenterPx.equals(centerPx)) {
+                var newCenterLonLat = this.getLonLatFromViewPortPx(newCenterPx);
+                if (options.animate) {
+                    this.panTo(newCenterLonLat);
+                } else {
+                    this.moveTo(newCenterLonLat);
+                    if(this.dragging) {
+                        this.dragging = false;
+                        this.events.triggerEvent("moveend");
+                    }
+                }    
+            }
+        }        
+
+   },
+   
+   /** 
+     * APIMethod: panTo
+     * Allows user to pan to a new lonlat
+     * If the new lonlat is in the current extent the map will slide smoothly
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     */
+    panTo: function(lonlat) {
+        if (this.panTween && this.getExtent().scale(this.panRatio).containsLonLat(lonlat)) {
+            var center = this.getCachedCenter();
+
+            // center will not change, don't do nothing
+            if (lonlat.equals(center)) {
+                return;
+            }
+
+            var from = this.getPixelFromLonLat(center);
+            var to = this.getPixelFromLonLat(lonlat);
+            var vector = { x: to.x - from.x, y: to.y - from.y };
+            var last = { x: 0, y: 0 };
+
+            this.panTween.start( { x: 0, y: 0 }, vector, this.panDuration, {
+                callbacks: {
+                    eachStep: OpenLayers.Function.bind(function(px) {
+                        var x = px.x - last.x,
+                            y = px.y - last.y;
+                        this.moveByPx(x, y);
+                        last.x = Math.round(px.x);
+                        last.y = Math.round(px.y);
+                    }, this),
+                    done: OpenLayers.Function.bind(function(px) {
+                        this.moveTo(lonlat);
+                        this.dragging = false;
+                        this.events.triggerEvent("moveend");
+                    }, this)
+                }
+            });
+        } else {
+            this.setCenter(lonlat);
+        }
+    },
+
+    /**
+     * APIMethod: setCenter
+     * Set the map center (and optionally, the zoom level).
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>|Array} The new center location.
+     *     If provided as array, the first value is the x coordinate,
+     *     and the 2nd value is the y coordinate.
+     * zoom - {Integer} Optional zoom level.
+     * dragging - {Boolean} Specifies whether or not to trigger 
+     *                      movestart/end events
+     * forceZoomChange - {Boolean} Specifies whether or not to trigger zoom 
+     *                             change events (needed on baseLayer change)
+     *
+     * TBD: reconsider forceZoomChange in 3.0
+     */
+    setCenter: function(lonlat, zoom, dragging, forceZoomChange) {
+        if (this.panTween) {
+            this.panTween.stop();
+        }
+        if (this.zoomTween) {
+            this.zoomTween.stop();
+        }            
+        this.moveTo(lonlat, zoom, {
+            'dragging': dragging,
+            'forceZoomChange': forceZoomChange
+        });
+    },
+    
+    /** 
+     * Method: moveByPx
+     * Drag the map by pixels.
+     *
+     * Parameters:
+     * dx - {Number}
+     * dy - {Number}
+     */
+    moveByPx: function(dx, dy) {
+        var hw = this.size.w / 2;
+        var hh = this.size.h / 2;
+        var x = hw + dx;
+        var y = hh + dy;
+        var wrapDateLine = this.baseLayer.wrapDateLine;
+        var xRestriction = 0;
+        var yRestriction = 0;
+        if (this.restrictedExtent) {
+            xRestriction = hw;
+            yRestriction = hh;
+            // wrapping the date line makes no sense for restricted extents
+            wrapDateLine = false;
+        }
+        dx = wrapDateLine ||
+                    x <= this.maxPx.x - xRestriction &&
+                    x >= this.minPx.x + xRestriction ? Math.round(dx) : 0;
+        dy = y <= this.maxPx.y - yRestriction &&
+                    y >= this.minPx.y + yRestriction ? Math.round(dy) : 0;
+        if (dx || dy) {
+            if (!this.dragging) {
+                this.dragging = true;
+                this.events.triggerEvent("movestart");
+            }
+            this.center = null;
+            if (dx) {
+                this.layerContainerOriginPx.x -= dx;
+                this.minPx.x -= dx;
+                this.maxPx.x -= dx;
+            }
+            if (dy) {
+                this.layerContainerOriginPx.y -= dy;
+                this.minPx.y -= dy;
+                this.maxPx.y -= dy;
+            }
+            this.applyTransform();
+            var layer, i, len;
+            for (i=0, len=this.layers.length; i<len; ++i) {
+                layer = this.layers[i];
+                if (layer.visibility &&
+                    (layer === this.baseLayer || layer.inRange)) {
+                    layer.moveByPx(dx, dy);
+                    layer.events.triggerEvent("move");
+                }
+            }
+            this.events.triggerEvent("move");
+        }
+    },
+    
+    /**
+     * Method: adjustZoom
+     *
+     * Parameters:
+     * zoom - {Number} The zoom level to adjust
+     *
+     * Returns:
+     * {Integer} Adjusted zoom level that shows a map not wider than its
+     * <baseLayer>'s maxExtent.
+     */
+    adjustZoom: function(zoom) {
+        if (this.baseLayer && this.baseLayer.wrapDateLine) {
+            var resolution, resolutions = this.baseLayer.resolutions,
+                maxResolution = this.getMaxExtent().getWidth() / this.size.w;
+            if (this.getResolutionForZoom(zoom) > maxResolution) {
+                if (this.fractionalZoom) {
+                    zoom = this.getZoomForResolution(maxResolution);
+                } else {
+                    for (var i=zoom|0, ii=resolutions.length; i<ii; ++i) {
+                        if (resolutions[i] <= maxResolution) {
+                            zoom = i;
+                            break;
+                        }
+                    }
+                } 
+            }
+        }
+        return zoom;
+    },
+    
+    /**
+     * APIMethod: getMinZoom
+     * Returns the minimum zoom level for the current map view. If the base
+     * layer is configured with <wrapDateLine> set to true, this will be the
+     * first zoom level that shows no more than one world width in the current
+     * map viewport. Components that rely on this value (e.g. zoom sliders)
+     * should also listen to the map's "updatesize" event and call this method
+     * in the "updatesize" listener.
+     *
+     * Returns:
+     * {Number} Minimum zoom level that shows a map not wider than its
+     * <baseLayer>'s maxExtent. This is an Integer value, unless the map is
+     * configured with <fractionalZoom> set to true.
+     */
+    getMinZoom: function() {
+        return this.adjustZoom(0);
+    },
+
+    /**
+     * Method: moveTo
+     *
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     * zoom - {Integer}
+     * options - {Object}
+     */
+    moveTo: function(lonlat, zoom, options) {
+        if (lonlat != null && !(lonlat instanceof OpenLayers.LonLat)) {
+            lonlat = new OpenLayers.LonLat(lonlat);
+        }
+        if (!options) { 
+            options = {};
+        }
+        if (zoom != null) {
+            zoom = parseFloat(zoom);
+            if (!this.fractionalZoom) {
+                zoom = Math.round(zoom);
+            }
+        }
+        var requestedZoom = zoom;
+        zoom = this.adjustZoom(zoom);
+        if (zoom !== requestedZoom) {
+            // zoom was adjusted, so keep old lonlat to avoid panning
+            lonlat = this.getCenter();
+        }
+        // dragging is false by default
+        var dragging = options.dragging || this.dragging;
+        // forceZoomChange is false by default
+        var forceZoomChange = options.forceZoomChange;
+
+        if (!this.getCachedCenter() && !this.isValidLonLat(lonlat)) {
+            lonlat = this.maxExtent.getCenterLonLat();
+            this.center = lonlat.clone();
+        }
+
+        if(this.restrictedExtent != null) {
+            // In 3.0, decide if we want to change interpretation of maxExtent.
+            if(lonlat == null) { 
+                lonlat = this.center; 
+            }
+            if(zoom == null) { 
+                zoom = this.getZoom(); 
+            }
+            var resolution = this.getResolutionForZoom(zoom);
+            var extent = this.calculateBounds(lonlat, resolution); 
+            if(!this.restrictedExtent.containsBounds(extent)) {
+                var maxCenter = this.restrictedExtent.getCenterLonLat(); 
+                if(extent.getWidth() > this.restrictedExtent.getWidth()) { 
+                    lonlat = new OpenLayers.LonLat(maxCenter.lon, lonlat.lat); 
+                } else if(extent.left < this.restrictedExtent.left) {
+                    lonlat = lonlat.add(this.restrictedExtent.left -
+                                        extent.left, 0); 
+                } else if(extent.right > this.restrictedExtent.right) { 
+                    lonlat = lonlat.add(this.restrictedExtent.right -
+                                        extent.right, 0); 
+                } 
+                if(extent.getHeight() > this.restrictedExtent.getHeight()) { 
+                    lonlat = new OpenLayers.LonLat(lonlat.lon, maxCenter.lat); 
+                } else if(extent.bottom < this.restrictedExtent.bottom) { 
+                    lonlat = lonlat.add(0, this.restrictedExtent.bottom -
+                                        extent.bottom); 
+                } 
+                else if(extent.top > this.restrictedExtent.top) { 
+                    lonlat = lonlat.add(0, this.restrictedExtent.top -
+                                        extent.top); 
+                } 
+            }
+        }
+        
+        var zoomChanged = forceZoomChange || (
+                            (this.isValidZoomLevel(zoom)) && 
+                            (zoom != this.getZoom()) );
+
+        var centerChanged = (this.isValidLonLat(lonlat)) && 
+                            (!lonlat.equals(this.center));
+
+        // if neither center nor zoom will change, no need to do anything
+        if (zoomChanged || centerChanged || dragging) {
+            dragging || this.events.triggerEvent("movestart", {
+                zoomChanged: zoomChanged
+            });
+
+            if (centerChanged) {
+                if (!zoomChanged && this.center) { 
+                    // if zoom hasnt changed, just slide layerContainer
+                    //  (must be done before setting this.center to new value)
+                    this.centerLayerContainer(lonlat);
+                }
+                this.center = lonlat.clone();
+            }
+
+            var res = zoomChanged ?
+                this.getResolutionForZoom(zoom) : this.getResolution();
+            // (re)set the layerContainerDiv's location
+            if (zoomChanged || this.layerContainerOrigin == null) {
+                this.layerContainerOrigin = this.getCachedCenter();
+                this.layerContainerOriginPx.x = 0;
+                this.layerContainerOriginPx.y = 0;
+                this.applyTransform();
+                var maxExtent = this.getMaxExtent({restricted: true});
+                var maxExtentCenter = maxExtent.getCenterLonLat();
+                var lonDelta = this.center.lon - maxExtentCenter.lon;
+                var latDelta = maxExtentCenter.lat - this.center.lat;
+                var extentWidth = Math.round(maxExtent.getWidth() / res);
+                var extentHeight = Math.round(maxExtent.getHeight() / res);
+                this.minPx = {
+                    x: (this.size.w - extentWidth) / 2 - lonDelta / res,
+                    y: (this.size.h - extentHeight) / 2 - latDelta / res
+                };
+                this.maxPx = {
+                    x: this.minPx.x + Math.round(maxExtent.getWidth() / res),
+                    y: this.minPx.y + Math.round(maxExtent.getHeight() / res)
+                };
+            }
+
+            if (zoomChanged) {
+                this.zoom = zoom;
+                this.resolution = res;
+            }    
+            
+            var bounds = this.getExtent();
+            
+            //send the move call to the baselayer and all the overlays    
+
+            if(this.baseLayer.visibility) {
+                this.baseLayer.moveTo(bounds, zoomChanged, options.dragging);
+                options.dragging || this.baseLayer.events.triggerEvent(
+                    "moveend", {zoomChanged: zoomChanged}
+                );
+            }
+            
+            bounds = this.baseLayer.getExtent();
+            
+            for (var i=this.layers.length-1; i>=0; --i) {
+                var layer = this.layers[i];
+                if (layer !== this.baseLayer && !layer.isBaseLayer) {
+                    var inRange = layer.calculateInRange();
+                    if (layer.inRange != inRange) {
+                        // the inRange property has changed. If the layer is
+                        // no longer in range, we turn it off right away. If
+                        // the layer is no longer out of range, the moveTo
+                        // call below will turn on the layer.
+                        layer.inRange = inRange;
+                        if (!inRange) {
+                            layer.display(false);
+                        }
+                        this.events.triggerEvent("changelayer", {
+                            layer: layer, property: "visibility"
+                        });
+                    }
+                    if (inRange && layer.visibility) {
+                        layer.moveTo(bounds, zoomChanged, options.dragging);
+                        options.dragging || layer.events.triggerEvent(
+                            "moveend", {zoomChanged: zoomChanged}
+                        );
+                    }
+                }                
+            }
+            
+            this.events.triggerEvent("move");
+            dragging || this.events.triggerEvent("moveend");
+
+            if (zoomChanged) {
+                //redraw popups
+                for (var i=0, len=this.popups.length; i<len; i++) {
+                    this.popups[i].updatePosition();
+                }
+                this.events.triggerEvent("zoomend");
+            }
+        }
+    },
+
+    /** 
+     * Method: centerLayerContainer
+     * This function takes care to recenter the layerContainerDiv.
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     */
+    centerLayerContainer: function (lonlat) {
+        var originPx = this.getViewPortPxFromLonLat(this.layerContainerOrigin);
+        var newPx = this.getViewPortPxFromLonLat(lonlat);
+
+        if ((originPx != null) && (newPx != null)) {
+            var oldLeft = this.layerContainerOriginPx.x;
+            var oldTop = this.layerContainerOriginPx.y;
+            var newLeft = Math.round(originPx.x - newPx.x);
+            var newTop = Math.round(originPx.y - newPx.y);
+            this.applyTransform(
+                (this.layerContainerOriginPx.x = newLeft),
+                (this.layerContainerOriginPx.y = newTop));
+            var dx = oldLeft - newLeft;
+            var dy = oldTop - newTop;
+            this.minPx.x -= dx;
+            this.maxPx.x -= dx;
+            this.minPx.y -= dy;
+            this.maxPx.y -= dy;
+        }        
+    },
+
+    /**
+     * Method: isValidZoomLevel
+     * 
+     * Parameters:
+     * zoomLevel - {Integer}
+     * 
+     * Returns:
+     * {Boolean} Whether or not the zoom level passed in is non-null and 
+     *           within the min/max range of zoom levels.
+     */
+    isValidZoomLevel: function(zoomLevel) {
+        return ( (zoomLevel != null) &&
+                 (zoomLevel >= 0) && 
+                 (zoomLevel < this.getNumZoomLevels()) );
+    },
+    
+    /**
+     * Method: isValidLonLat
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     * 
+     * Returns:
+     * {Boolean} Whether or not the lonlat passed in is non-null and within
+     *           the maxExtent bounds
+     */
+    isValidLonLat: function(lonlat) {
+        var valid = false;
+        if (lonlat != null) {
+            var maxExtent = this.getMaxExtent();
+            var worldBounds = this.baseLayer.wrapDateLine && maxExtent;
+            valid = maxExtent.containsLonLat(lonlat, {worldBounds: worldBounds});
+        }
+        return valid;
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                 Layer Options                        */
+  /*                                                      */
+  /*    Accessor functions to Layer Options parameters    */
+  /*                                                      */
+  /********************************************************/
+    
+    /**
+     * APIMethod: getProjection
+     * This method returns a string representing the projection. In 
+     *     the case of projection support, this will be the srsCode which
+     *     is loaded -- otherwise it will simply be the string value that
+     *     was passed to the projection at startup.
+     *
+     * FIXME: In 3.0, we will remove getProjectionObject, and instead
+     *     return a Projection object from this function. 
+     * 
+     * Returns:
+     * {String} The Projection string from the base layer or null. 
+     */
+    getProjection: function() {
+        var projection = this.getProjectionObject();
+        return projection ? projection.getCode() : null;
+    },
+    
+    /**
+     * APIMethod: getProjectionObject
+     * Returns the projection obect from the baselayer.
+     *
+     * Returns:
+     * {<OpenLayers.Projection>} The Projection of the base layer.
+     */
+    getProjectionObject: function() {
+        var projection = null;
+        if (this.baseLayer != null) {
+            projection = this.baseLayer.projection;
+        }
+        return projection;
+    },
+    
+    /**
+     * APIMethod: getMaxResolution
+     * 
+     * Returns:
+     * {String} The Map's Maximum Resolution
+     */
+    getMaxResolution: function() {
+        var maxResolution = null;
+        if (this.baseLayer != null) {
+            maxResolution = this.baseLayer.maxResolution;
+        }
+        return maxResolution;
+    },
+        
+    /**
+     * APIMethod: getMaxExtent
+     *
+     * Parameters:
+     * options - {Object} 
+     * 
+     * Allowed Options:
+     * restricted - {Boolean} If true, returns restricted extent (if it is 
+     *     available.)
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} The maxExtent property as set on the current 
+     *     baselayer, unless the 'restricted' option is set, in which case
+     *     the 'restrictedExtent' option from the map is returned (if it
+     *     is set).
+     */
+    getMaxExtent: function (options) {
+        var maxExtent = null;
+        if(options && options.restricted && this.restrictedExtent){
+            maxExtent = this.restrictedExtent;
+        } else if (this.baseLayer != null) {
+            maxExtent = this.baseLayer.maxExtent;
+        }        
+        return maxExtent;
+    },
+    
+    /**
+     * APIMethod: getNumZoomLevels
+     * 
+     * Returns:
+     * {Integer} The total number of zoom levels that can be displayed by the 
+     *           current baseLayer.
+     */
+    getNumZoomLevels: function() {
+        var numZoomLevels = null;
+        if (this.baseLayer != null) {
+            numZoomLevels = this.baseLayer.numZoomLevels;
+        }
+        return numZoomLevels;
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                 Baselayer Functions                  */
+  /*                                                      */
+  /*    The following functions, all publicly exposed     */
+  /*       in the API?, are all merely wrappers to the    */
+  /*       the same calls on whatever layer is set as     */
+  /*                the current base layer                */
+  /*                                                      */
+  /********************************************************/
+
+    /**
+     * APIMethod: getExtent
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} A Bounds object which represents the lon/lat 
+     *                       bounds of the current viewPort. 
+     *                       If no baselayer is set, returns null.
+     */
+    getExtent: function () {
+        var extent = null;
+        if (this.baseLayer != null) {
+            extent = this.baseLayer.getExtent();
+        }
+        return extent;
+    },
+
+    /**
+     * APIMethod: getResolution
+     * 
+     * Returns:
+     * {Float} The current resolution of the map. 
+     *         If no baselayer is set, returns null.
+     */
+    getResolution: function () {
+        var resolution = null;
+        if (this.baseLayer != null) {
+            resolution = this.baseLayer.getResolution();
+        } else if(this.allOverlays === true && this.layers.length > 0) {
+            // while adding the 1st layer to the map in allOverlays mode,
+            // this.baseLayer is not set yet when we need the resolution
+            // for calculateInRange.
+            resolution = this.layers[0].getResolution();
+        }
+        return resolution;
+    },
+
+    /**
+     * APIMethod: getUnits
+     * 
+     * Returns:
+     * {Float} The current units of the map. 
+     *         If no baselayer is set, returns null.
+     */
+    getUnits: function () {
+        var units = null;
+        if (this.baseLayer != null) {
+            units = this.baseLayer.units;
+        }
+        return units;
+    },
+
+     /**
+      * APIMethod: getScale
+      * 
+      * Returns:
+      * {Float} The current scale denominator of the map. 
+      *         If no baselayer is set, returns null.
+      */
+    getScale: function () {
+        var scale = null;
+        if (this.baseLayer != null) {
+            var res = this.getResolution();
+            var units = this.baseLayer.units;
+            scale = OpenLayers.Util.getScaleFromResolution(res, units);
+        }
+        return scale;
+    },
+
+
+    /**
+     * APIMethod: getZoomForExtent
+     * 
+     * Parameters: 
+     * bounds - {<OpenLayers.Bounds>}
+     * closest - {Boolean} Find the zoom level that most closely fits the 
+     *     specified bounds. Note that this may result in a zoom that does 
+     *     not exactly contain the entire extent.
+     *     Default is false.
+     * 
+     * Returns:
+     * {Integer} A suitable zoom level for the specified bounds.
+     *           If no baselayer is set, returns null.
+     */
+    getZoomForExtent: function (bounds, closest) {
+        var zoom = null;
+        if (this.baseLayer != null) {
+            zoom = this.baseLayer.getZoomForExtent(bounds, closest);
+        }
+        return zoom;
+    },
+
+    /**
+     * APIMethod: getResolutionForZoom
+     * 
+     * Parameters:
+     * zoom - {Float}
+     * 
+     * Returns:
+     * {Float} A suitable resolution for the specified zoom.  If no baselayer
+     *     is set, returns null.
+     */
+    getResolutionForZoom: function(zoom) {
+        var resolution = null;
+        if(this.baseLayer) {
+            resolution = this.baseLayer.getResolutionForZoom(zoom);
+        }
+        return resolution;
+    },
+
+    /**
+     * APIMethod: getZoomForResolution
+     * 
+     * Parameters:
+     * resolution - {Float}
+     * closest - {Boolean} Find the zoom level that corresponds to the absolute 
+     *     closest resolution, which may result in a zoom whose corresponding
+     *     resolution is actually smaller than we would have desired (if this
+     *     is being called from a getZoomForExtent() call, then this means that
+     *     the returned zoom index might not actually contain the entire 
+     *     extent specified... but it'll be close).
+     *     Default is false.
+     * 
+     * Returns:
+     * {Integer} A suitable zoom level for the specified resolution.
+     *           If no baselayer is set, returns null.
+     */
+    getZoomForResolution: function(resolution, closest) {
+        var zoom = null;
+        if (this.baseLayer != null) {
+            zoom = this.baseLayer.getZoomForResolution(resolution, closest);
+        }
+        return zoom;
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                  Zooming Functions                   */
+  /*                                                      */
+  /*    The following functions, all publicly exposed     */
+  /*       in the API, are all merely wrappers to the     */
+  /*               the setCenter() function               */
+  /*                                                      */
+  /********************************************************/
+  
+    /** 
+     * APIMethod: zoomTo
+     * Zoom to a specific zoom level. Zooming will be animated unless the map
+     * is configured with {zoomMethod: null}. To zoom without animation, use
+     * <setCenter> without a lonlat argument.
+     * 
+     * Parameters:
+     * zoom - {Integer}
+     */
+    zoomTo: function(zoom, xy) {
+        // non-API arguments:
+        // xy - {<OpenLayers.Pixel>} optional zoom origin
+        
+        var map = this;
+        if (map.isValidZoomLevel(zoom)) {
+            if (map.baseLayer.wrapDateLine) {
+                zoom = map.adjustZoom(zoom);
+            }
+            if (map.zoomTween) {
+                var currentRes = map.getResolution(),
+                    targetRes = map.getResolutionForZoom(zoom),
+                    start = {scale: 1},
+                    end = {scale: currentRes / targetRes};
+                if (map.zoomTween.playing && map.zoomTween.duration < 3 * map.zoomDuration) {
+                    // update the end scale, and reuse the running zoomTween
+                    map.zoomTween.finish = {
+                        scale: map.zoomTween.finish.scale * end.scale
+                    };
+                } else {
+                    if (!xy) {
+                        var size = map.getSize();
+                        xy = {x: size.w / 2, y: size.h / 2};
+                    }
+                    map.zoomTween.start(start, end, map.zoomDuration, {
+                        minFrameRate: 50, // don't spend much time zooming
+                        callbacks: {
+                            eachStep: function(data) {
+                                var containerOrigin = map.layerContainerOriginPx,
+                                    scale = data.scale,
+                                    dx = ((scale - 1) * (containerOrigin.x - xy.x)) | 0,
+                                    dy = ((scale - 1) * (containerOrigin.y - xy.y)) | 0;
+                                map.applyTransform(containerOrigin.x + dx, containerOrigin.y + dy, scale);
+                            },
+                            done: function(data) {
+                                map.applyTransform();
+                                var resolution = map.getResolution() / data.scale,
+                                    zoom = map.getZoomForResolution(resolution, true)
+                                map.moveTo(map.getZoomTargetCenter(xy, resolution), zoom, true);
+                            }
+                        }
+                    });
+                }
+            } else {
+                var center = xy ?
+                    map.getZoomTargetCenter(xy, map.getResolutionForZoom(zoom)) :
+                    null;
+                map.setCenter(center, zoom);
+            }
+        }
+    },
+        
+    /**
+     * APIMethod: zoomIn
+     * 
+     */
+    zoomIn: function() {
+        this.zoomTo(this.getZoom() + 1);
+    },
+    
+    /**
+     * APIMethod: zoomOut
+     * 
+     */
+    zoomOut: function() {
+        this.zoomTo(this.getZoom() - 1);
+    },
+
+    /**
+     * APIMethod: zoomToExtent
+     * Zoom to the passed in bounds, recenter
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>|Array} If provided as an array, the array
+     *     should consist of four values (left, bottom, right, top).
+     * closest - {Boolean} Find the zoom level that most closely fits the 
+     *     specified bounds. Note that this may result in a zoom that does 
+     *     not exactly contain the entire extent.
+     *     Default is false.
+     * 
+     */
+    zoomToExtent: function(bounds, closest) {
+        if (!(bounds instanceof OpenLayers.Bounds)) {
+            bounds = new OpenLayers.Bounds(bounds);
+        }
+        var center = bounds.getCenterLonLat();
+        if (this.baseLayer.wrapDateLine) {
+            var maxExtent = this.getMaxExtent();
+
+            //fix straddling bounds (in the case of a bbox that straddles the 
+            // dateline, it's left and right boundaries will appear backwards. 
+            // we fix this by allowing a right value that is greater than the
+            // max value at the dateline -- this allows us to pass a valid 
+            // bounds to calculate zoom)
+            //
+            bounds = bounds.clone();
+            while (bounds.right < bounds.left) {
+                bounds.right += maxExtent.getWidth();
+            }
+            //if the bounds was straddling (see above), then the center point 
+            // we got from it was wrong. So we take our new bounds and ask it
+            // for the center.
+            //
+            center = bounds.getCenterLonLat().wrapDateLine(maxExtent);
+        }
+        this.setCenter(center, this.getZoomForExtent(bounds, closest));
+    },
+
+    /** 
+     * APIMethod: zoomToMaxExtent
+     * Zoom to the full extent and recenter.
+     *
+     * Parameters:
+     * options - {Object}
+     * 
+     * Allowed Options:
+     * restricted - {Boolean} True to zoom to restricted extent if it is 
+     *     set. Defaults to true.
+     */
+    zoomToMaxExtent: function(options) {
+        //restricted is true by default
+        var restricted = (options) ? options.restricted : true;
+
+        var maxExtent = this.getMaxExtent({
+            'restricted': restricted 
+        });
+        this.zoomToExtent(maxExtent);
+    },
+
+    /** 
+     * APIMethod: zoomToScale
+     * Zoom to a specified scale 
+     * 
+     * Parameters:
+     * scale - {float}
+     * closest - {Boolean} Find the zoom level that most closely fits the 
+     *     specified scale. Note that this may result in a zoom that does 
+     *     not exactly contain the entire extent.
+     *     Default is false.
+     * 
+     */
+    zoomToScale: function(scale, closest) {
+        var res = OpenLayers.Util.getResolutionFromScale(scale, 
+                                                         this.baseLayer.units);
+
+        var halfWDeg = (this.size.w * res) / 2;
+        var halfHDeg = (this.size.h * res) / 2;
+        var center = this.getCachedCenter();
+
+        var extent = new OpenLayers.Bounds(center.lon - halfWDeg,
+                                           center.lat - halfHDeg,
+                                           center.lon + halfWDeg,
+                                           center.lat + halfHDeg);
+        this.zoomToExtent(extent, closest);
+    },
+    
+  /********************************************************/
+  /*                                                      */
+  /*             Translation Functions                    */
+  /*                                                      */
+  /*      The following functions translate between       */
+  /*           LonLat, LayerPx, and ViewPortPx            */
+  /*                                                      */
+  /********************************************************/
+      
+  //
+  // TRANSLATION: LonLat <-> ViewPortPx
+  //
+
+    /**
+     * Method: getLonLatFromViewPortPx
+     * 
+     * Parameters:
+     * viewPortPx - {<OpenLayers.Pixel>|Object} An OpenLayers.Pixel or
+     *                                          an object with a 'x'
+     *                                          and 'y' properties.
+     * 
+     * Returns:
+     * {<OpenLayers.LonLat>} An OpenLayers.LonLat which is the passed-in view 
+     *                       port <OpenLayers.Pixel>, translated into lon/lat
+     *                       by the current base layer.
+     */
+    getLonLatFromViewPortPx: function (viewPortPx) {
+        var lonlat = null; 
+        if (this.baseLayer != null) {
+            lonlat = this.baseLayer.getLonLatFromViewPortPx(viewPortPx);
+        }
+        return lonlat;
+    },
+
+    /**
+     * APIMethod: getViewPortPxFromLonLat
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>}
+     * 
+     * Returns:
+     * {<OpenLayers.Pixel>} An OpenLayers.Pixel which is the passed-in 
+     *                      <OpenLayers.LonLat>, translated into view port 
+     *                      pixels by the current base layer.
+     */
+    getViewPortPxFromLonLat: function (lonlat) {
+        var px = null; 
+        if (this.baseLayer != null) {
+            px = this.baseLayer.getViewPortPxFromLonLat(lonlat);
+        }
+        return px;
+    },
+
+    /**
+     * Method: getZoomTargetCenter
+     *
+     * Parameters:
+     * xy - {<OpenLayers.Pixel>} The zoom origin pixel location on the screen
+     * resolution - {Float} The resolution we want to get the center for
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>} The location of the map center after the
+     *     transformation described by the origin xy and the target resolution.
+     */
+    getZoomTargetCenter: function (xy, resolution) {
+        var lonlat = null,
+            size = this.getSize(),
+            deltaX  = size.w/2 - xy.x,
+            deltaY  = xy.y - size.h/2,
+            zoomPoint = this.getLonLatFromPixel(xy);
+        if (zoomPoint) {
+            lonlat = new OpenLayers.LonLat(
+                zoomPoint.lon + deltaX * resolution,
+                zoomPoint.lat + deltaY * resolution
+            );
+        }
+        return lonlat;
+    },
+        
+  //
+  // CONVENIENCE TRANSLATION FUNCTIONS FOR API
+  //
+
+    /**
+     * APIMethod: getLonLatFromPixel
+     * 
+     * Parameters:
+     * px - {<OpenLayers.Pixel>|Object} An OpenLayers.Pixel or an object with
+     *                                  a 'x' and 'y' properties.
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>} An OpenLayers.LonLat corresponding to the given
+     *                       OpenLayers.Pixel, translated into lon/lat by the 
+     *                       current base layer
+     */
+    getLonLatFromPixel: function (px) {
+        return this.getLonLatFromViewPortPx(px);
+    },
+
+    /**
+     * APIMethod: getPixelFromLonLat
+     * Returns a pixel location given a map location.  The map location is
+     *     translated to an integer pixel location (in viewport pixel
+     *     coordinates) by the current base layer.
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>} A map location.
+     * 
+     * Returns: 
+     * {<OpenLayers.Pixel>} An OpenLayers.Pixel corresponding to the 
+     *     <OpenLayers.LonLat> translated into view port pixels by the current
+     *     base layer.
+     */
+    getPixelFromLonLat: function (lonlat) {
+        var px = this.getViewPortPxFromLonLat(lonlat);
+        px.x = Math.round(px.x);
+        px.y = Math.round(px.y);
+        return px;
+    },
+    
+    /**
+     * Method: getGeodesicPixelSize
+     * 
+     * Parameters:
+     * px - {<OpenLayers.Pixel>} The pixel to get the geodesic length for. If
+     *     not provided, the center pixel of the map viewport will be used.
+     * 
+     * Returns:
+     * {<OpenLayers.Size>} The geodesic size of the pixel in kilometers.
+     */
+    getGeodesicPixelSize: function(px) {
+        var lonlat = px ? this.getLonLatFromPixel(px) : (
+            this.getCachedCenter() || new OpenLayers.LonLat(0, 0));
+        var res = this.getResolution();
+        var left = lonlat.add(-res / 2, 0);
+        var right = lonlat.add(res / 2, 0);
+        var bottom = lonlat.add(0, -res / 2);
+        var top = lonlat.add(0, res / 2);
+        var dest = new OpenLayers.Projection("EPSG:4326");
+        var source = this.getProjectionObject() || dest;
+        if(!source.equals(dest)) {
+            left.transform(source, dest);
+            right.transform(source, dest);
+            bottom.transform(source, dest);
+            top.transform(source, dest);
+        }
+        
+        return new OpenLayers.Size(
+            OpenLayers.Util.distVincenty(left, right),
+            OpenLayers.Util.distVincenty(bottom, top)
+        );
+    },
+
+
+
+  //
+  // TRANSLATION: ViewPortPx <-> LayerPx
+  //
+
+    /**
+     * APIMethod: getViewPortPxFromLayerPx
+     * 
+     * Parameters:
+     * layerPx - {<OpenLayers.Pixel>}
+     * 
+     * Returns:
+     * {<OpenLayers.Pixel>} Layer Pixel translated into ViewPort Pixel 
+     *                      coordinates
+     */
+    getViewPortPxFromLayerPx:function(layerPx) {
+        var viewPortPx = null;
+        if (layerPx != null) {
+            var dX = this.layerContainerOriginPx.x;
+            var dY = this.layerContainerOriginPx.y;
+            viewPortPx = layerPx.add(dX, dY);            
+        }
+        return viewPortPx;
+    },
+    
+    /**
+     * APIMethod: getLayerPxFromViewPortPx
+     * 
+     * Parameters:
+     * viewPortPx - {<OpenLayers.Pixel>}
+     * 
+     * Returns:
+     * {<OpenLayers.Pixel>} ViewPort Pixel translated into Layer Pixel 
+     *                      coordinates
+     */
+    getLayerPxFromViewPortPx:function(viewPortPx) {
+        var layerPx = null;
+        if (viewPortPx != null) {
+            var dX = -this.layerContainerOriginPx.x;
+            var dY = -this.layerContainerOriginPx.y;
+            layerPx = viewPortPx.add(dX, dY);
+            if (isNaN(layerPx.x) || isNaN(layerPx.y)) {
+                layerPx = null;
+            }
+        }
+        return layerPx;
+    },
+    
+  //
+  // TRANSLATION: LonLat <-> LayerPx
+  //
+
+    /**
+     * Method: getLonLatFromLayerPx
+     * 
+     * Parameters:
+     * px - {<OpenLayers.Pixel>}
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>}
+     */
+    getLonLatFromLayerPx: function (px) {
+       //adjust for displacement of layerContainerDiv
+       px = this.getViewPortPxFromLayerPx(px);
+       return this.getLonLatFromViewPortPx(px);         
+    },
+    
+    /**
+     * APIMethod: getLayerPxFromLonLat
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>} lonlat
+     *
+     * Returns:
+     * {<OpenLayers.Pixel>} An OpenLayers.Pixel which is the passed-in 
+     *                      <OpenLayers.LonLat>, translated into layer pixels 
+     *                      by the current base layer
+     */
+    getLayerPxFromLonLat: function (lonlat) {
+       //adjust for displacement of layerContainerDiv
+       var px = this.getPixelFromLonLat(lonlat);
+       return this.getLayerPxFromViewPortPx(px);         
+    },
+
+    /**
+     * Method: applyTransform
+     * Applies the given transform to the <layerContainerDiv>. This method has
+     * a 2-stage fallback from translate3d/scale3d via translate/scale to plain
+     * style.left/style.top, in which case no scaling is supported.
+     *
+     * Parameters:
+     * x - {Number} x parameter for the translation. Defaults to the x value of
+     *     the map's <layerContainerOriginPx>
+     * y - {Number} y parameter for the translation. Defaults to the y value of
+     *     the map's <layerContainerOriginPx>
+     * scale - {Number} scale. Defaults to 1 if not provided.
+     */
+     applyTransform: function(x, y, scale) {
+         scale = scale || 1;
+         var origin = this.layerContainerOriginPx,
+             needTransform = scale !== 1;
+         x = x || origin.x;
+         y = y || origin.y;
+            
+         var style = this.layerContainerDiv.style,
+             transform = this.applyTransform.transform,
+             template = this.applyTransform.template;
+        
+         if (transform === undefined) {
+             transform = OpenLayers.Util.vendorPrefix.style('transform');
+             this.applyTransform.transform = transform;
+             if (transform) {
+                 // Try translate3d, but only if the viewPortDiv has a transform
+                 // defined in a stylesheet
+                 var computedStyle = OpenLayers.Element.getStyle(this.viewPortDiv,
+                     OpenLayers.Util.vendorPrefix.css('transform'));
+                 if (!computedStyle || computedStyle !== 'none') {
+                     template = ['translate3d(', ',0) ', 'scale3d(', ',1)'];
+                     style[transform] = [template[0], '0,0', template[1]].join('');
+                 }
+                 // If no transform is defined in the stylesheet or translate3d
+                 // does not stick, use translate and scale
+                 if (!template || !~style[transform].indexOf(template[0])) {
+                     template = ['translate(', ') ', 'scale(', ')'];
+                 }
+                 this.applyTransform.template = template;
+             }
+         }
+         
+         // If we do 3d transforms, we always want to use them. If we do 2d
+         // transforms, we only use them when we need to.
+         if (transform !== null && (template[0] === 'translate3d(' || needTransform === true)) {
+             // Our 2d transforms are combined with style.left and style.top, so
+             // adjust x and y values and set the origin as left and top
+             if (needTransform === true && template[0] === 'translate(') {
+                 x -= origin.x;
+                 y -= origin.y;
+                 style.left = origin.x + 'px';
+                 style.top = origin.y + 'px';
+             }
+             style[transform] = [
+                 template[0], x, 'px,', y, 'px', template[1],
+                 template[2], scale, ',', scale, template[3]
+             ].join('');
+         } else {
+             style.left = x + 'px';
+             style.top = y + 'px';
+             // We previously might have had needTransform, so remove transform
+             if (transform !== null) {
+                 style[transform] = '';
+             }
+         }
+     },
+    
+    CLASS_NAME: "OpenLayers.Map"
+});
+
+/**
+ * Constant: TILE_WIDTH
+ * {Integer} 256 Default tile width (unless otherwise specified)
+ */
+OpenLayers.Map.TILE_WIDTH = 256;
+/**
+ * Constant: TILE_HEIGHT
+ * {Integer} 256 Default tile height (unless otherwise specified)
+ */
+OpenLayers.Map.TILE_HEIGHT = 256;
+/* ======================================================================
+    OpenLayers/Layer.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Map.js
+ * @requires OpenLayers/Projection.js
+ */
+
+/**
+ * Class: OpenLayers.Layer
+ */
+OpenLayers.Layer = OpenLayers.Class({
+
+    /**
+     * APIProperty: id
+     * {String}
+     */
+    id: null,
+
+    /** 
+     * APIProperty: name
+     * {String}
+     */
+    name: null,
+
+    /** 
+     * APIProperty: div
+     * {DOMElement}
+     */
+    div: null,
+
+    /**
+     * APIProperty: opacity
+     * {Float} The layer's opacity. Float number between 0.0 and 1.0. Default
+     * is 1.
+     */
+    opacity: 1,
+
+    /**
+     * APIProperty: alwaysInRange
+     * {Boolean} If a layer's display should not be scale-based, this should 
+     *     be set to true. This will cause the layer, as an overlay, to always 
+     *     be 'active', by always returning true from the calculateInRange() 
+     *     function. 
+     * 
+     *     If not explicitly specified for a layer, its value will be 
+     *     determined on startup in initResolutions() based on whether or not 
+     *     any scale-specific properties have been set as options on the 
+     *     layer. If no scale-specific options have been set on the layer, we 
+     *     assume that it should always be in range.
+     * 
+     *     See #987 for more info.
+     */
+    alwaysInRange: null,   
+
+    /**
+     * Constant: RESOLUTION_PROPERTIES
+     * {Array} The properties that are used for calculating resolutions
+     *     information.
+     */
+    RESOLUTION_PROPERTIES: [
+        'scales', 'resolutions',
+        'maxScale', 'minScale',
+        'maxResolution', 'minResolution',
+        'numZoomLevels', 'maxZoomLevel'
+    ],
+
+    /**
+     * APIProperty: events
+     * {<OpenLayers.Events>}
+     *
+     * Register a listener for a particular event with the following syntax:
+     * (code)
+     * layer.events.register(type, obj, listener);
+     * (end)
+     *
+     * Listeners will be called with a reference to an event object.  The
+     *     properties of this event depends on exactly what happened.
+     *
+     * All event objects have at least the following properties:
+     * object - {Object} A reference to layer.events.object.
+     * element - {DOMElement} A reference to layer.events.element.
+     *
+     * Supported map event types:
+     * loadstart - Triggered when layer loading starts.  When using a Vector 
+     *     layer with a Fixed or BBOX strategy, the event object includes 
+     *     a *filter* property holding the OpenLayers.Filter used when 
+     *     calling read on the protocol.
+     * loadend - Triggered when layer loading ends.  When using a Vector layer
+     *     with a Fixed or BBOX strategy, the event object includes a 
+     *     *response* property holding an OpenLayers.Protocol.Response object.
+     * visibilitychanged - Triggered when the layer's visibility property is
+     *     changed, e.g. by turning the layer on or off in the layer switcher.
+     *     Note that the actual visibility of the layer can also change if it
+     *     gets out of range (see <calculateInRange>). If you also want to catch
+     *     these cases, register for the map's 'changelayer' event instead.
+     * move - Triggered when layer moves (triggered with every mousemove
+     *     during a drag).
+     * moveend - Triggered when layer is done moving, object passed as
+     *     argument has a zoomChanged boolean property which tells that the
+     *     zoom has changed.
+     * added - Triggered after the layer is added to a map.  Listeners will
+     *     receive an object with a *map* property referencing the map and a
+     *     *layer* property referencing the layer.
+     * removed - Triggered after the layer is removed from the map.  Listeners
+     *     will receive an object with a *map* property referencing the map and
+     *     a *layer* property referencing the layer.
+     */
+    events: null,
+
+    /**
+     * APIProperty: map
+     * {<OpenLayers.Map>} This variable is set when the layer is added to 
+     *     the map, via the accessor function setMap().
+     */
+    map: null,
+    
+    /**
+     * APIProperty: isBaseLayer
+     * {Boolean} Whether or not the layer is a base layer. This should be set 
+     *     individually by all subclasses. Default is false
+     */
+    isBaseLayer: false,
+ 
+    /**
+     * Property: alpha
+     * {Boolean} The layer's images have an alpha channel.  Default is false.
+     */
+    alpha: false,
+
+    /** 
+     * APIProperty: displayInLayerSwitcher
+     * {Boolean} Display the layer's name in the layer switcher.  Default is
+     *     true.
+     */
+    displayInLayerSwitcher: true,
+
+    /**
+     * APIProperty: visibility
+     * {Boolean} The layer should be displayed in the map.  Default is true.
+     */
+    visibility: true,
+
+    /**
+     * APIProperty: attribution
+     * {String} Attribution string, displayed when an 
+     *     <OpenLayers.Control.Attribution> has been added to the map.
+     */
+    attribution: null, 
+
+    /** 
+     * Property: inRange
+     * {Boolean} The current map resolution is within the layer's min/max 
+     *     range. This is set in <OpenLayers.Map.setCenter> whenever the zoom 
+     *     changes.
+     */
+    inRange: false,
+    
+    /**
+     * Propery: imageSize
+     * {<OpenLayers.Size>} For layers with a gutter, the image is larger than 
+     *     the tile by twice the gutter in each dimension.
+     */
+    imageSize: null,
+    
+  // OPTIONS
+
+    /** 
+     * Property: options
+     * {Object} An optional object whose properties will be set on the layer.
+     *     Any of the layer properties can be set as a property of the options
+     *     object and sent to the constructor when the layer is created.
+     */
+    options: null,
+
+    /**
+     * APIProperty: eventListeners
+     * {Object} If set as an option at construction, the eventListeners
+     *     object will be registered with <OpenLayers.Events.on>.  Object
+     *     structure must be a listeners object as shown in the example for
+     *     the events.on method.
+     */
+    eventListeners: null,
+
+    /**
+     * APIProperty: gutter
+     * {Integer} Determines the width (in pixels) of the gutter around image
+     *     tiles to ignore.  By setting this property to a non-zero value,
+     *     images will be requested that are wider and taller than the tile
+     *     size by a value of 2 x gutter.  This allows artifacts of rendering
+     *     at tile edges to be ignored.  Set a gutter value that is equal to
+     *     half the size of the widest symbol that needs to be displayed.
+     *     Defaults to zero.  Non-tiled layers always have zero gutter.
+     */ 
+    gutter: 0, 
+
+    /**
+     * APIProperty: projection
+     * {<OpenLayers.Projection>} or {<String>} Specifies the projection of the layer.
+     *     Can be set in the layer options. If not specified in the layer options,
+     *     it is set to the default projection specified in the map,
+     *     when the layer is added to the map.
+     *     Projection along with default maxExtent and resolutions
+     *     are set automatically with commercial baselayers in EPSG:3857,
+     *     such as Google, Bing and OpenStreetMap, and do not need to be specified.
+     *     Otherwise, if specifying projection, also set maxExtent,
+     *     maxResolution or resolutions as appropriate.
+     *     When using vector layers with strategies, layer projection should be set
+     *     to the projection of the source data if that is different from the map default.
+     * 
+     *     Can be either a string or an <OpenLayers.Projection> object;
+     *     if a string is passed, will be converted to an object when
+     *     the layer is added to the map.
+     * 
+     */
+    projection: null,    
+    
+    /**
+     * APIProperty: units
+     * {String} The layer map units.  Defaults to null.  Possible values
+     *     are 'degrees' (or 'dd'), 'm', 'ft', 'km', 'mi', 'inches'.
+     *     Normally taken from the projection.
+     *     Only required if both map and layers do not define a projection,
+     *     or if they define a projection which does not define units.
+     */
+    units: null,
+
+    /**
+     * APIProperty: scales
+     * {Array}  An array of map scales in descending order.  The values in the
+     *     array correspond to the map scale denominator.  Note that these
+     *     values only make sense if the display (monitor) resolution of the
+     *     client is correctly guessed by whomever is configuring the
+     *     application.  In addition, the units property must also be set.
+     *     Use <resolutions> instead wherever possible.
+     */
+    scales: null,
+
+    /**
+     * APIProperty: resolutions
+     * {Array} A list of map resolutions (map units per pixel) in descending
+     *     order.  If this is not set in the layer constructor, it will be set
+     *     based on other resolution related properties (maxExtent,
+     *     maxResolution, maxScale, etc.).
+     */
+    resolutions: null,
+    
+    /**
+     * APIProperty: maxExtent
+     * {<OpenLayers.Bounds>|Array} If provided as an array, the array
+     *     should consist of four values (left, bottom, right, top).
+     *     The maximum extent for the layer.  Defaults to null.
+     * 
+     *     The center of these bounds will not stray outside
+     *     of the viewport extent during panning.  In addition, if
+     *     <displayOutsideMaxExtent> is set to false, data will not be
+     *     requested that falls completely outside of these bounds.
+     */
+    maxExtent: null,
+    
+    /**
+     * APIProperty: minExtent
+     * {<OpenLayers.Bounds>|Array} If provided as an array, the array
+     *     should consist of four values (left, bottom, right, top).
+     *     The minimum extent for the layer.  Defaults to null.
+     */
+    minExtent: null,
+    
+    /**
+     * APIProperty: maxResolution
+     * {Float} Default max is 360 deg / 256 px, which corresponds to
+     *     zoom level 0 on gmaps.  Specify a different value in the layer 
+     *     options if you are not using the default <OpenLayers.Map.tileSize>
+     *     and displaying the whole world.
+     */
+    maxResolution: null,
+
+    /**
+     * APIProperty: minResolution
+     * {Float}
+     */
+    minResolution: null,
+
+    /**
+     * APIProperty: numZoomLevels
+     * {Integer}
+     */
+    numZoomLevels: null,
+    
+    /**
+     * APIProperty: minScale
+     * {Float}
+     */
+    minScale: null,
+    
+    /**
+     * APIProperty: maxScale
+     * {Float}
+     */
+    maxScale: null,
+
+    /**
+     * APIProperty: displayOutsideMaxExtent
+     * {Boolean} Request map tiles that are completely outside of the max 
+     *     extent for this layer. Defaults to false.
+     */
+    displayOutsideMaxExtent: false,
+
+    /**
+     * APIProperty: wrapDateLine
+     * {Boolean} Wraps the world at the international dateline, so the map can
+     * be panned infinitely in longitudinal direction. Only use this on the
+     * base layer, and only if the layer's maxExtent equals the world bounds.
+     * #487 for more info.   
+     */
+    wrapDateLine: false,
+    
+    /**
+     * Property: metadata
+     * {Object} This object can be used to store additional information on a
+     *     layer object.
+     */
+    metadata: null,
+    
+    /**
+     * Constructor: OpenLayers.Layer
+     *
+     * Parameters:
+     * name - {String} The layer name
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, options) {
+
+        this.metadata = {};
+        
+        options = OpenLayers.Util.extend({}, options);
+        // make sure we respect alwaysInRange if set on the prototype
+        if (this.alwaysInRange != null) {
+            options.alwaysInRange = this.alwaysInRange;
+        }
+        this.addOptions(options);
+
+        this.name = name;
+        
+        if (this.id == null) {
+
+            this.id = OpenLayers.Util.createUniqueID(this.CLASS_NAME + "_");
+
+            this.div = OpenLayers.Util.createDiv(this.id);
+            this.div.style.width = "100%";
+            this.div.style.height = "100%";
+            this.div.dir = "ltr";
+
+            this.events = new OpenLayers.Events(this, this.div);
+            if(this.eventListeners instanceof Object) {
+                this.events.on(this.eventListeners);
+            }
+
+        }
+    },
+    
+    /**
+     * Method: destroy
+     * Destroy is a destructor: this is to alleviate cyclic references which
+     *     the Javascript garbage cleaner can not take care of on its own.
+     *
+     * Parameters:
+     * setNewBaseLayer - {Boolean} Set a new base layer when this layer has
+     *     been destroyed.  Default is true.
+     */
+    destroy: function(setNewBaseLayer) {
+        if (setNewBaseLayer == null) {
+            setNewBaseLayer = true;
+        }
+        if (this.map != null) {
+            this.map.removeLayer(this, setNewBaseLayer);
+        }
+        this.projection = null;
+        this.map = null;
+        this.name = null;
+        this.div = null;
+        this.options = null;
+
+        if (this.events) {
+            if(this.eventListeners) {
+                this.events.un(this.eventListeners);
+            }
+            this.events.destroy();
+        }
+        this.eventListeners = null;
+        this.events = null;
+    },
+    
+   /**
+    * Method: clone
+    *
+    * Parameters:
+    * obj - {<OpenLayers.Layer>} The layer to be cloned
+    *
+    * Returns:
+    * {<OpenLayers.Layer>} An exact clone of this <OpenLayers.Layer>
+    */
+    clone: function (obj) {
+        
+        if (obj == null) {
+            obj = new OpenLayers.Layer(this.name, this.getOptions());
+        }
+        
+        // catch any randomly tagged-on properties
+        OpenLayers.Util.applyDefaults(obj, this);
+        
+        // a cloned layer should never have its map property set
+        //  because it has not been added to a map yet. 
+        obj.map = null;
+        
+        return obj;
+    },
+    
+    /**
+     * Method: getOptions
+     * Extracts an object from the layer with the properties that were set as
+     *     options, but updates them with the values currently set on the
+     *     instance.
+     * 
+     * Returns:
+     * {Object} the <options> of the layer, representing the current state.
+     */
+    getOptions: function() {
+        var options = {};
+        for(var o in this.options) {
+            options[o] = this[o];
+        }
+        return options;
+    },
+    
+    /** 
+     * APIMethod: setName
+     * Sets the new layer name for this layer.  Can trigger a changelayer event
+     *     on the map.
+     *
+     * Parameters:
+     * newName - {String} The new name.
+     */
+    setName: function(newName) {
+        if (newName != this.name) {
+            this.name = newName;
+            if (this.map != null) {
+                this.map.events.triggerEvent("changelayer", {
+                    layer: this,
+                    property: "name"
+                });
+            }
+        }
+    },    
+    
+   /**
+    * APIMethod: addOptions
+    * 
+    * Parameters:
+    * newOptions - {Object}
+    * reinitialize - {Boolean} If set to true, and if resolution options of the
+    *     current baseLayer were changed, the map will be recentered to make
+    *     sure that it is displayed with a valid resolution, and a
+    *     changebaselayer event will be triggered.
+    */
+    addOptions: function (newOptions, reinitialize) {
+
+        if (this.options == null) {
+            this.options = {};
+        }
+        
+        if (newOptions) {
+            // make sure this.projection references a projection object
+            if(typeof newOptions.projection == "string") {
+                newOptions.projection = new OpenLayers.Projection(newOptions.projection);
+            }
+            if (newOptions.projection) {
+                // get maxResolution, units and maxExtent from projection defaults if
+                // they are not defined already
+                OpenLayers.Util.applyDefaults(newOptions,
+                    OpenLayers.Projection.defaults[newOptions.projection.getCode()]);
+            }
+            // allow array for extents
+            if (newOptions.maxExtent && !(newOptions.maxExtent instanceof OpenLayers.Bounds)) {
+                newOptions.maxExtent = new OpenLayers.Bounds(newOptions.maxExtent);
+            }
+            if (newOptions.minExtent && !(newOptions.minExtent instanceof OpenLayers.Bounds)) {
+                newOptions.minExtent = new OpenLayers.Bounds(newOptions.minExtent);
+            }
+        }
+
+        // update our copy for clone
+        OpenLayers.Util.extend(this.options, newOptions);
+
+        // add new options to this
+        OpenLayers.Util.extend(this, newOptions);
+        
+        // get the units from the projection, if we have a projection
+        // and it it has units
+        if(this.projection && this.projection.getUnits()) {
+            this.units = this.projection.getUnits();
+        }
+
+        // re-initialize resolutions if necessary, i.e. if any of the
+        // properties of the "properties" array defined below is set
+        // in the new options
+        if(this.map) {
+            // store current resolution so we can try to restore it later
+            var resolution = this.map.getResolution();
+            var properties = this.RESOLUTION_PROPERTIES.concat(
+                ["projection", "units", "minExtent", "maxExtent"]
+            );
+            for(var o in newOptions) {
+                if(newOptions.hasOwnProperty(o) &&
+                   OpenLayers.Util.indexOf(properties, o) >= 0) {
+
+                    this.initResolutions();
+                    if (reinitialize && this.map.baseLayer === this) {
+                        // update map position, and restore previous resolution
+                        this.map.setCenter(this.map.getCenter(),
+                            this.map.getZoomForResolution(resolution),
+                            false, true
+                        );
+                        // trigger a changebaselayer event to make sure that
+                        // all controls (especially
+                        // OpenLayers.Control.PanZoomBar) get notified of the
+                        // new options
+                        this.map.events.triggerEvent("changebaselayer", {
+                            layer: this
+                        });
+                    }
+                    break;
+                }
+            }
+        }
+    },
+
+    /**
+     * APIMethod: onMapResize
+     * This function can be implemented by subclasses
+     */
+    onMapResize: function() {
+        //this function can be implemented by subclasses  
+    },
+
+    /**
+     * APIMethod: redraw
+     * Redraws the layer.  Returns true if the layer was redrawn, false if not.
+     *
+     * Returns:
+     * {Boolean} The layer was redrawn.
+     */
+    redraw: function() {
+        var redrawn = false;
+        if (this.map) {
+
+            // min/max Range may have changed
+            this.inRange = this.calculateInRange();
+
+            // map's center might not yet be set
+            var extent = this.getExtent();
+
+            if (extent && this.inRange && this.visibility) {
+                var zoomChanged = true;
+                this.moveTo(extent, zoomChanged, false);
+                this.events.triggerEvent("moveend",
+                    {"zoomChanged": zoomChanged});
+                redrawn = true;
+            }
+        }
+        return redrawn;
+    },
+
+    /**
+     * Method: moveTo
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     * zoomChanged - {Boolean} Tells when zoom has changed, as layers have to
+     *     do some init work in that case.
+     * dragging - {Boolean}
+     */
+    moveTo:function(bounds, zoomChanged, dragging) {
+        var display = this.visibility;
+        if (!this.isBaseLayer) {
+            display = display && this.inRange;
+        }
+        this.display(display);
+    },
+
+    /**
+     * Method: moveByPx
+     * Move the layer based on pixel vector. To be implemented by subclasses.
+     *
+     * Parameters:
+     * dx - {Number} The x coord of the displacement vector.
+     * dy - {Number} The y coord of the displacement vector.
+     */
+    moveByPx: function(dx, dy) {
+    },
+
+    /**
+     * Method: setMap
+     * Set the map property for the layer. This is done through an accessor
+     *     so that subclasses can override this and take special action once 
+     *     they have their map variable set. 
+     * 
+     *     Here we take care to bring over any of the necessary default 
+     *     properties from the map. 
+     * 
+     * Parameters:
+     * map - {<OpenLayers.Map>}
+     */
+    setMap: function(map) {
+        if (this.map == null) {
+        
+            this.map = map;
+            
+            // grab some essential layer data from the map if it hasn't already
+            //  been set
+            this.maxExtent = this.maxExtent || this.map.maxExtent;
+            this.minExtent = this.minExtent || this.map.minExtent;
+
+            this.projection = this.projection || this.map.projection;
+            if (typeof this.projection == "string") {
+                this.projection = new OpenLayers.Projection(this.projection);
+            }
+
+            // Check the projection to see if we can get units -- if not, refer
+            // to properties.
+            this.units = this.projection.getUnits() ||
+                         this.units || this.map.units;
+            
+            this.initResolutions();
+            
+            if (!this.isBaseLayer) {
+                this.inRange = this.calculateInRange();
+                var show = ((this.visibility) && (this.inRange));
+                this.div.style.display = show ? "" : "none";
+            }
+            
+            // deal with gutters
+            this.setTileSize();
+        }
+    },
+    
+    /**
+     * Method: afterAdd
+     * Called at the end of the map.addLayer sequence.  At this point, the map
+     *     will have a base layer.  To be overridden by subclasses.
+     */
+    afterAdd: function() {
+    },
+    
+    /**
+     * APIMethod: removeMap
+     * Just as setMap() allows each layer the possibility to take a 
+     *     personalized action on being added to the map, removeMap() allows
+     *     each layer to take a personalized action on being removed from it. 
+     *     For now, this will be mostly unused, except for the EventPane layer,
+     *     which needs this hook so that it can remove the special invisible
+     *     pane. 
+     * 
+     * Parameters:
+     * map - {<OpenLayers.Map>}
+     */
+    removeMap: function(map) {
+        //to be overridden by subclasses
+    },
+    
+    /**
+     * APIMethod: getImageSize
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>} optional tile bounds, can be used
+     *     by subclasses that have to deal with different tile sizes at the
+     *     layer extent edges (e.g. Zoomify)
+     * 
+     * Returns:
+     * {<OpenLayers.Size>} The size that the image should be, taking into 
+     *     account gutters.
+     */ 
+    getImageSize: function(bounds) { 
+        return (this.imageSize || this.tileSize); 
+    },    
+  
+    /**
+     * APIMethod: setTileSize
+     * Set the tile size based on the map size.  This also sets layer.imageSize
+     *     or use by Tile.Image.
+     * 
+     * Parameters:
+     * size - {<OpenLayers.Size>}
+     */
+    setTileSize: function(size) {
+        var tileSize = (size) ? size :
+                                ((this.tileSize) ? this.tileSize :
+                                                   this.map.getTileSize());
+        this.tileSize = tileSize;
+        if(this.gutter) {
+          // layers with gutters need non-null tile sizes
+          //if(tileSize == null) {
+          //    OpenLayers.console.error("Error in layer.setMap() for " +
+          //                              this.name + ": layers with " +
+          //                              "gutters need non-null tile sizes");
+          //}
+            this.imageSize = new OpenLayers.Size(tileSize.w + (2*this.gutter), 
+                                                 tileSize.h + (2*this.gutter)); 
+        }
+    },
+
+    /**
+     * APIMethod: getVisibility
+     * 
+     * Returns:
+     * {Boolean} The layer should be displayed (if in range).
+     */
+    getVisibility: function() {
+        return this.visibility;
+    },
+
+    /** 
+     * APIMethod: setVisibility
+     * Set the visibility flag for the layer and hide/show & redraw 
+     *     accordingly. Fire event unless otherwise specified
+     * 
+     * Note that visibility is no longer simply whether or not the layer's
+     *     style.display is set to "block". Now we store a 'visibility' state 
+     *     property on the layer class, this allows us to remember whether or 
+     *     not we *desire* for a layer to be visible. In the case where the 
+     *     map's resolution is out of the layer's range, this desire may be 
+     *     subverted.
+     * 
+     * Parameters:
+     * visibility - {Boolean} Whether or not to display the layer (if in range)
+     */
+    setVisibility: function(visibility) {
+        if (visibility != this.visibility) {
+            this.visibility = visibility;
+            this.display(visibility);
+            this.redraw();
+            if (this.map != null) {
+                this.map.events.triggerEvent("changelayer", {
+                    layer: this,
+                    property: "visibility"
+                });
+            }
+            this.events.triggerEvent("visibilitychanged");
+        }
+    },
+
+    /** 
+     * APIMethod: display
+     * Hide or show the Layer. This is designed to be used internally, and 
+     *     is not generally the way to enable or disable the layer. For that,
+     *     use the setVisibility function instead..
+     * 
+     * Parameters:
+     * display - {Boolean}
+     */
+    display: function(display) {
+        if (display != (this.div.style.display != "none")) {
+            this.div.style.display = (display && this.calculateInRange()) ? "block" : "none";
+        }
+    },
+
+    /**
+     * APIMethod: calculateInRange
+     * 
+     * Returns:
+     * {Boolean} The layer is displayable at the current map's current
+     *     resolution. Note that if 'alwaysInRange' is true for the layer, 
+     *     this function will always return true.
+     */
+    calculateInRange: function() {
+        var inRange = false;
+
+        if (this.alwaysInRange) {
+            inRange = true;
+        } else {
+            if (this.map) {
+                var resolution = this.map.getResolution();
+                inRange = ( (resolution >= this.minResolution) &&
+                            (resolution <= this.maxResolution) );
+            }
+        }
+        return inRange;
+    },
+
+    /** 
+     * APIMethod: setIsBaseLayer
+     * 
+     * Parameters:
+     * isBaseLayer - {Boolean}
+     */
+    setIsBaseLayer: function(isBaseLayer) {
+        if (isBaseLayer != this.isBaseLayer) {
+            this.isBaseLayer = isBaseLayer;
+            if (this.map != null) {
+                this.map.events.triggerEvent("changebaselayer", {
+                    layer: this
+                });
+            }
+        }
+    },
+
+  /********************************************************/
+  /*                                                      */
+  /*                 Baselayer Functions                  */
+  /*                                                      */
+  /********************************************************/
+  
+    /** 
+     * Method: initResolutions
+     * This method's responsibility is to set up the 'resolutions' array 
+     *     for the layer -- this array is what the layer will use to interface
+     *     between the zoom levels of the map and the resolution display 
+     *     of the layer.
+     * 
+     * The user has several options that determine how the array is set up.
+     *  
+     * For a detailed explanation, see the following wiki from the 
+     *     openlayers.org homepage:
+     *     http://trac.openlayers.org/wiki/SettingZoomLevels
+     */
+    initResolutions: function() {
+
+        // ok we want resolutions, here's our strategy:
+        //
+        // 1. if resolutions are defined in the layer config, use them
+        // 2. else, if scales are defined in the layer config then derive
+        //    resolutions from these scales
+        // 3. else, attempt to calculate resolutions from maxResolution,
+        //    minResolution, numZoomLevels, maxZoomLevel set in the
+        //    layer config
+        // 4. if we still don't have resolutions, and if resolutions
+        //    are defined in the same, use them
+        // 5. else, if scales are defined in the map then derive
+        //    resolutions from these scales
+        // 6. else, attempt to calculate resolutions from maxResolution,
+        //    minResolution, numZoomLevels, maxZoomLevel set in the
+        //    map
+        // 7. hope for the best!
+
+        var i, len, p;
+        var props = {}, alwaysInRange = true;
+
+        // get resolution data from layer config
+        // (we also set alwaysInRange in the layer as appropriate)
+        for(i=0, len=this.RESOLUTION_PROPERTIES.length; i<len; i++) {
+            p = this.RESOLUTION_PROPERTIES[i];
+            props[p] = this.options[p];
+            if(alwaysInRange && this.options[p]) {
+                alwaysInRange = false;
+            }
+        }
+        if(this.options.alwaysInRange == null) {
+            this.alwaysInRange = alwaysInRange;
+        }
+
+        // if we don't have resolutions then attempt to derive them from scales
+        if(props.resolutions == null) {
+            props.resolutions = this.resolutionsFromScales(props.scales);
+        }
+
+        // if we still don't have resolutions then attempt to calculate them
+        if(props.resolutions == null) {
+            props.resolutions = this.calculateResolutions(props);
+        }
+
+        // if we couldn't calculate resolutions then we look at we have
+        // in the map
+        if(props.resolutions == null) {
+            for(i=0, len=this.RESOLUTION_PROPERTIES.length; i<len; i++) {
+                p = this.RESOLUTION_PROPERTIES[i];
+                props[p] = this.options[p] != null ?
+                    this.options[p] : this.map[p];
+            }
+            if(props.resolutions == null) {
+                props.resolutions = this.resolutionsFromScales(props.scales);
+            }
+            if(props.resolutions == null) {
+                props.resolutions = this.calculateResolutions(props);
+            }
+        }
+
+        // ok, we new need to set properties in the instance
+
+        // get maxResolution from the config if it's defined there
+        var maxResolution;
+        if(this.options.maxResolution &&
+           this.options.maxResolution !== "auto") {
+            maxResolution = this.options.maxResolution;
+        }
+        if(this.options.minScale) {
+            maxResolution = OpenLayers.Util.getResolutionFromScale(
+                this.options.minScale, this.units);
+        }
+
+        // get minResolution from the config if it's defined there
+        var minResolution;
+        if(this.options.minResolution &&
+           this.options.minResolution !== "auto") {
+            minResolution = this.options.minResolution;
+        }
+        if(this.options.maxScale) {
+            minResolution = OpenLayers.Util.getResolutionFromScale(
+                this.options.maxScale, this.units);
+        }
+
+        if(props.resolutions) {
+
+            //sort resolutions array descendingly
+            props.resolutions.sort(function(a, b) {
+                return (b - a);
+            });
+
+            // if we still don't have a maxResolution get it from the
+            // resolutions array
+            if(!maxResolution) {
+                maxResolution = props.resolutions[0];
+            }
+
+            // if we still don't have a minResolution get it from the
+            // resolutions array
+            if(!minResolution) {
+                var lastIdx = props.resolutions.length - 1;
+                minResolution = props.resolutions[lastIdx];
+            }
+        }
+
+        this.resolutions = props.resolutions;
+        if(this.resolutions) {
+            len = this.resolutions.length;
+            this.scales = new Array(len);
+            for(i=0; i<len; i++) {
+                this.scales[i] = OpenLayers.Util.getScaleFromResolution(
+                    this.resolutions[i], this.units);
+            }
+            this.numZoomLevels = len;
+        }
+        this.minResolution = minResolution;
+        if(minResolution) {
+            this.maxScale = OpenLayers.Util.getScaleFromResolution(
+                minResolution, this.units);
+        }
+        this.maxResolution = maxResolution;
+        if(maxResolution) {
+            this.minScale = OpenLayers.Util.getScaleFromResolution(
+                maxResolution, this.units);
+        }
+    },
+
+    /**
+     * Method: resolutionsFromScales
+     * Derive resolutions from scales.
+     *
+     * Parameters:
+     * scales - {Array(Number)} Scales
+     *
+     * Returns
+     * {Array(Number)} Resolutions
+     */
+    resolutionsFromScales: function(scales) {
+        if(scales == null) {
+            return;
+        }
+        var resolutions, i, len;
+        len = scales.length;
+        resolutions = new Array(len);
+        for(i=0; i<len; i++) {
+            resolutions[i] = OpenLayers.Util.getResolutionFromScale(
+                scales[i], this.units);
+        }
+        return resolutions;
+    },
+
+    /**
+     * Method: calculateResolutions
+     * Calculate resolutions based on the provided properties.
+     *
+     * Parameters:
+     * props - {Object} Properties
+     *
+     * Returns:
+     * {Array({Number})} Array of resolutions.
+     */
+    calculateResolutions: function(props) {
+
+        var viewSize, wRes, hRes;
+
+        // determine maxResolution
+        var maxResolution = props.maxResolution;
+        if(props.minScale != null) {
+            maxResolution =
+                OpenLayers.Util.getResolutionFromScale(props.minScale,
+                                                       this.units);
+        } else if(maxResolution == "auto" && this.maxExtent != null) {
+            viewSize = this.map.getSize();
+            wRes = this.maxExtent.getWidth() / viewSize.w;
+            hRes = this.maxExtent.getHeight() / viewSize.h;
+            maxResolution = Math.max(wRes, hRes);
+        }
+
+        // determine minResolution
+        var minResolution = props.minResolution;
+        if(props.maxScale != null) {
+            minResolution =
+                OpenLayers.Util.getResolutionFromScale(props.maxScale,
+                                                       this.units);
+        } else if(props.minResolution == "auto" && this.minExtent != null) {
+            viewSize = this.map.getSize();
+            wRes = this.minExtent.getWidth() / viewSize.w;
+            hRes = this.minExtent.getHeight()/ viewSize.h;
+            minResolution = Math.max(wRes, hRes);
+        }
+
+        if(typeof maxResolution !== "number" &&
+           typeof minResolution !== "number" &&
+           this.maxExtent != null) {
+            // maxResolution for default grid sets assumes that at zoom
+            // level zero, the whole world fits on one tile.
+            var tileSize = this.map.getTileSize();
+            maxResolution = Math.max(
+                this.maxExtent.getWidth() / tileSize.w,
+                this.maxExtent.getHeight() / tileSize.h
+            );
+        }
+
+        // determine numZoomLevels
+        var maxZoomLevel = props.maxZoomLevel;
+        var numZoomLevels = props.numZoomLevels;
+        if(typeof minResolution === "number" &&
+           typeof maxResolution === "number" && numZoomLevels === undefined) {
+            var ratio = maxResolution / minResolution;
+            numZoomLevels = Math.floor(Math.log(ratio) / Math.log(2)) + 1;
+        } else if(numZoomLevels === undefined && maxZoomLevel != null) {
+            numZoomLevels = maxZoomLevel + 1;
+        }
+
+        // are we able to calculate resolutions?
+        if(typeof numZoomLevels !== "number" || numZoomLevels <= 0 ||
+           (typeof maxResolution !== "number" &&
+                typeof minResolution !== "number")) {
+            return;
+        }
+
+        // now we have numZoomLevels and at least one of maxResolution
+        // or minResolution, we can populate the resolutions array
+
+        var resolutions = new Array(numZoomLevels);
+        var base = 2;
+        if(typeof minResolution == "number" &&
+           typeof maxResolution == "number") {
+            // if maxResolution and minResolution are set, we calculate
+            // the base for exponential scaling that starts at
+            // maxResolution and ends at minResolution in numZoomLevels
+            // steps.
+            base = Math.pow(
+                    (maxResolution / minResolution),
+                (1 / (numZoomLevels - 1))
+            );
+        }
+
+        var i;
+        if(typeof maxResolution === "number") {
+            for(i=0; i<numZoomLevels; i++) {
+                resolutions[i] = maxResolution / Math.pow(base, i);
+            }
+        } else {
+            for(i=0; i<numZoomLevels; i++) {
+                resolutions[numZoomLevels - 1 - i] =
+                    minResolution * Math.pow(base, i);
+            }
+        }
+
+        return resolutions;
+    },
+
+    /**
+     * APIMethod: getResolution
+     * 
+     * Returns:
+     * {Float} The currently selected resolution of the map, taken from the
+     *     resolutions array, indexed by current zoom level.
+     */
+    getResolution: function() {
+        var zoom = this.map.getZoom();
+        return this.getResolutionForZoom(zoom);
+    },
+
+    /** 
+     * APIMethod: getExtent
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} A Bounds object which represents the lon/lat 
+     *     bounds of the current viewPort.
+     */
+    getExtent: function() {
+        // just use stock map calculateBounds function -- passing no arguments
+        //  means it will user map's current center & resolution
+        //
+        return this.map.calculateBounds();
+    },
+
+    /**
+     * APIMethod: getZoomForExtent
+     * 
+     * Parameters:
+     * extent - {<OpenLayers.Bounds>}
+     * closest - {Boolean} Find the zoom level that most closely fits the 
+     *     specified bounds. Note that this may result in a zoom that does 
+     *     not exactly contain the entire extent.
+     *     Default is false.
+     *
+     * Returns:
+     * {Integer} The index of the zoomLevel (entry in the resolutions array) 
+     *     for the passed-in extent. We do this by calculating the ideal 
+     *     resolution for the given extent (based on the map size) and then 
+     *     calling getZoomForResolution(), passing along the 'closest'
+     *     parameter.
+     */
+    getZoomForExtent: function(extent, closest) {
+        var viewSize = this.map.getSize();
+        var idealResolution = Math.max( extent.getWidth()  / viewSize.w,
+                                        extent.getHeight() / viewSize.h );
+
+        return this.getZoomForResolution(idealResolution, closest);
+    },
+    
+    /** 
+     * Method: getDataExtent
+     * Calculates the max extent which includes all of the data for the layer.
+     *     This function is to be implemented by subclasses.
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>}
+     */
+    getDataExtent: function () {
+        //to be implemented by subclasses
+    },
+
+    /**
+     * APIMethod: getResolutionForZoom
+     * 
+     * Parameters:
+     * zoom - {Float}
+     * 
+     * Returns:
+     * {Float} A suitable resolution for the specified zoom.
+     */
+    getResolutionForZoom: function(zoom) {
+        zoom = Math.max(0, Math.min(zoom, this.resolutions.length - 1));
+        var resolution;
+        if(this.map.fractionalZoom) {
+            var low = Math.floor(zoom);
+            var high = Math.ceil(zoom);
+            resolution = this.resolutions[low] -
+                ((zoom-low) * (this.resolutions[low]-this.resolutions[high]));
+        } else {
+            resolution = this.resolutions[Math.round(zoom)];
+        }
+        return resolution;
+    },
+
+    /**
+     * APIMethod: getZoomForResolution
+     * 
+     * Parameters:
+     * resolution - {Float}
+     * closest - {Boolean} Find the zoom level that corresponds to the absolute 
+     *     closest resolution, which may result in a zoom whose corresponding
+     *     resolution is actually smaller than we would have desired (if this
+     *     is being called from a getZoomForExtent() call, then this means that
+     *     the returned zoom index might not actually contain the entire 
+     *     extent specified... but it'll be close).
+     *     Default is false.
+     * 
+     * Returns:
+     * {Integer} The index of the zoomLevel (entry in the resolutions array) 
+     *     that corresponds to the best fit resolution given the passed in 
+     *     value and the 'closest' specification.
+     */
+    getZoomForResolution: function(resolution, closest) {
+        var zoom, i, len;
+        if(this.map.fractionalZoom) {
+            var lowZoom = 0;
+            var highZoom = this.resolutions.length - 1;
+            var highRes = this.resolutions[lowZoom];
+            var lowRes = this.resolutions[highZoom];
+            var res;
+            for(i=0, len=this.resolutions.length; i<len; ++i) {
+                res = this.resolutions[i];
+                if(res >= resolution) {
+                    highRes = res;
+                    lowZoom = i;
+                }
+                if(res <= resolution) {
+                    lowRes = res;
+                    highZoom = i;
+                    break;
+                }
+            }
+            var dRes = highRes - lowRes;
+            if(dRes > 0) {
+                zoom = lowZoom + ((highRes - resolution) / dRes);
+            } else {
+                zoom = lowZoom;
+            }
+        } else {
+            var diff;
+            var minDiff = Number.POSITIVE_INFINITY;
+            for(i=0, len=this.resolutions.length; i<len; i++) {            
+                if (closest) {
+                    diff = Math.abs(this.resolutions[i] - resolution);
+                    if (diff > minDiff) {
+                        break;
+                    }
+                    minDiff = diff;
+                } else {
+                    if (this.resolutions[i] < resolution) {
+                        break;
+                    }
+                }
+            }
+            zoom = Math.max(0, i-1);
+        }
+        return zoom;
+    },
+    
+    /**
+     * APIMethod: getLonLatFromViewPortPx
+     * 
+     * Parameters:
+     * viewPortPx - {<OpenLayers.Pixel>|Object} An OpenLayers.Pixel or
+     *                                          an object with a 'x'
+     *                                          and 'y' properties.
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>} An OpenLayers.LonLat which is the passed-in 
+     *     view port <OpenLayers.Pixel>, translated into lon/lat by the layer.
+     */
+    getLonLatFromViewPortPx: function (viewPortPx) {
+        var lonlat = null;
+        var map = this.map;
+        if (viewPortPx != null && map.minPx) {
+            var res = map.getResolution();
+            var maxExtent = map.getMaxExtent({restricted: true});
+            var lon = (viewPortPx.x - map.minPx.x) * res + maxExtent.left;
+            var lat = (map.minPx.y - viewPortPx.y) * res + maxExtent.top;
+            lonlat = new OpenLayers.LonLat(lon, lat);
+
+            if (this.wrapDateLine) {
+                lonlat = lonlat.wrapDateLine(this.maxExtent);
+            }
+        }
+        return lonlat;
+    },
+
+    /**
+     * APIMethod: getViewPortPxFromLonLat
+     * Returns a pixel location given a map location.  This method will return
+     *     fractional pixel values.
+     * 
+     * Parameters:
+     * lonlat - {<OpenLayers.LonLat>|Object} An OpenLayers.LonLat or
+     *                                       an object with a 'lon'
+     *                                       and 'lat' properties.
+     *
+     * Returns: 
+     * {<OpenLayers.Pixel>} An <OpenLayers.Pixel> which is the passed-in 
+     *     lonlat translated into view port pixels.
+     */
+    getViewPortPxFromLonLat: function (lonlat, resolution) {
+        var px = null; 
+        if (lonlat != null) {
+            resolution = resolution || this.map.getResolution();
+            var extent = this.map.calculateBounds(null, resolution);
+            px = new OpenLayers.Pixel(
+                (1/resolution * (lonlat.lon - extent.left)),
+                (1/resolution * (extent.top - lonlat.lat))
+            );    
+        }
+        return px;
+    },
+    
+    /**
+     * APIMethod: setOpacity
+     * Sets the opacity for the entire layer (all images)
+     * 
+     * Parameters:
+     * opacity - {Float}
+     */
+    setOpacity: function(opacity) {
+        if (opacity != this.opacity) {
+            this.opacity = opacity;
+            var childNodes = this.div.childNodes;
+            for(var i = 0, len = childNodes.length; i < len; ++i) {
+                var element = childNodes[i].firstChild || childNodes[i];
+                var lastChild = childNodes[i].lastChild;
+                //TODO de-uglify this
+                if (lastChild && lastChild.nodeName.toLowerCase() === "iframe") {
+                    element = lastChild.parentNode;
+                }
+                OpenLayers.Util.modifyDOMElement(element, null, null, null, 
+                                                 null, null, null, opacity);
+            }
+            if (this.map != null) {
+                this.map.events.triggerEvent("changelayer", {
+                    layer: this,
+                    property: "opacity"
+                });
+            }
+        }
+    },
+
+    /**
+     * Method: getZIndex
+     * 
+     * Returns: 
+     * {Integer} the z-index of this layer
+     */    
+    getZIndex: function () {
+        return this.div.style.zIndex;
+    },
+
+    /**
+     * Method: setZIndex
+     * 
+     * Parameters: 
+     * zIndex - {Integer}
+     */    
+    setZIndex: function (zIndex) {
+        this.div.style.zIndex = zIndex;
+    },
+
+    /**
+     * Method: adjustBounds
+     * This function will take a bounds, and if wrapDateLine option is set
+     *     on the layer, it will return a bounds which is wrapped around the 
+     *     world. We do not wrap for bounds which *cross* the 
+     *     maxExtent.left/right, only bounds which are entirely to the left 
+     *     or entirely to the right.
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     */
+    adjustBounds: function (bounds) {
+
+        if (this.gutter) {
+            // Adjust the extent of a bounds in map units by the 
+            // layer's gutter in pixels.
+            var mapGutter = this.gutter * this.map.getResolution();
+            bounds = new OpenLayers.Bounds(bounds.left - mapGutter,
+                                           bounds.bottom - mapGutter,
+                                           bounds.right + mapGutter,
+                                           bounds.top + mapGutter);
+        }
+
+        if (this.wrapDateLine) {
+            // wrap around the date line, within the limits of rounding error
+            var wrappingOptions = { 
+                'rightTolerance':this.getResolution(),
+                'leftTolerance':this.getResolution()
+            };    
+            bounds = bounds.wrapDateLine(this.maxExtent, wrappingOptions);
+                              
+        }
+        return bounds;
+    },
+
+    CLASS_NAME: "OpenLayers.Layer"
+});
+/* ======================================================================
+    OpenLayers/Layer/HTTPRequest.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Layer.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.HTTPRequest
+ * 
+ * Inherits from: 
+ *  - <OpenLayers.Layer>
+ */
+OpenLayers.Layer.HTTPRequest = OpenLayers.Class(OpenLayers.Layer, {
+
+    /** 
+     * Constant: URL_HASH_FACTOR
+     * {Float} Used to hash URL param strings for multi-WMS server selection.
+     *         Set to the Golden Ratio per Knuth's recommendation.
+     */
+    URL_HASH_FACTOR: (Math.sqrt(5) - 1) / 2,
+
+    /** 
+     * Property: url
+     * {Array(String) or String} This is either an array of url strings or 
+     *                           a single url string. 
+     */
+    url: null,
+
+    /** 
+     * Property: params
+     * {Object} Hashtable of key/value parameters
+     */
+    params: null,
+    
+    /** 
+     * APIProperty: reproject
+     * *Deprecated*. See http://docs.openlayers.org/library/spherical_mercator.html
+     * for information on the replacement for this functionality. 
+     * {Boolean} Whether layer should reproject itself based on base layer 
+     *           locations. This allows reprojection onto commercial layers. 
+     *           Default is false: Most layers can't reproject, but layers 
+     *           which can create non-square geographic pixels can, like WMS.
+     *           
+     */
+    reproject: false,
+
+    /**
+     * Constructor: OpenLayers.Layer.HTTPRequest
+     * 
+     * Parameters:
+     * name - {String}
+     * url - {Array(String) or String}
+     * params - {Object}
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, url, params, options) {
+        OpenLayers.Layer.prototype.initialize.apply(this, [name, options]);
+        this.url = url;
+        if (!this.params) {
+            this.params = OpenLayers.Util.extend({}, params);
+        }
+    },
+
+    /**
+     * APIMethod: destroy
+     */
+    destroy: function() {
+        this.url = null;
+        this.params = null;
+        OpenLayers.Layer.prototype.destroy.apply(this, arguments); 
+    },
+    
+    /**
+     * APIMethod: clone
+     * 
+     * Parameters:
+     * obj - {Object}
+     * 
+     * Returns:
+     * {<OpenLayers.Layer.HTTPRequest>} An exact clone of this 
+     *                                  <OpenLayers.Layer.HTTPRequest>
+     */
+    clone: function (obj) {
+        
+        if (obj == null) {
+            obj = new OpenLayers.Layer.HTTPRequest(this.name,
+                                                   this.url,
+                                                   this.params,
+                                                   this.getOptions());
+        }
+        
+        //get all additions from superclasses
+        obj = OpenLayers.Layer.prototype.clone.apply(this, [obj]);
+
+        // copy/set any non-init, non-simple values here
+        
+        return obj;
+    },
+
+    /** 
+     * APIMethod: setUrl
+     * 
+     * Parameters:
+     * newUrl - {String}
+     */
+    setUrl: function(newUrl) {
+        this.url = newUrl;
+    },
+
+    /**
+     * APIMethod: mergeNewParams
+     * 
+     * Parameters:
+     * newParams - {Object}
+     *
+     * Returns:
+     * redrawn: {Boolean} whether the layer was actually redrawn.
+     */
+    mergeNewParams:function(newParams) {
+        this.params = OpenLayers.Util.extend(this.params, newParams);
+        var ret = this.redraw();
+        if(this.map != null) {
+            this.map.events.triggerEvent("changelayer", {
+                layer: this,
+                property: "params"
+            });
+        }
+        return ret;
+    },
+
+    /**
+     * APIMethod: redraw
+     * Redraws the layer.  Returns true if the layer was redrawn, false if not.
+     *
+     * Parameters:
+     * force - {Boolean} Force redraw by adding random parameter.
+     *
+     * Returns:
+     * {Boolean} The layer was redrawn.
+     */
+    redraw: function(force) { 
+        if (force) {
+            return this.mergeNewParams({"_olSalt": Math.random()});
+        } else {
+            return OpenLayers.Layer.prototype.redraw.apply(this, []);
+        }
+    },
+    
+    /**
+     * Method: selectUrl
+     * selectUrl() implements the standard floating-point multiplicative
+     *     hash function described by Knuth, and hashes the contents of the 
+     *     given param string into a float between 0 and 1. This float is then
+     *     scaled to the size of the provided urls array, and used to select
+     *     a URL.
+     *
+     * Parameters:
+     * paramString - {String}
+     * urls - {Array(String)}
+     * 
+     * Returns:
+     * {String} An entry from the urls array, deterministically selected based
+     *          on the paramString.
+     */
+    selectUrl: function(paramString, urls) {
+        var product = 1;
+        for (var i=0, len=paramString.length; i<len; i++) { 
+            product *= paramString.charCodeAt(i) * this.URL_HASH_FACTOR; 
+            product -= Math.floor(product); 
+        }
+        return urls[Math.floor(product * urls.length)];
+    },
+
+    /** 
+     * Method: getFullRequestString
+     * Combine url with layer's params and these newParams. 
+     *   
+     *    does checking on the serverPath variable, allowing for cases when it 
+     *     is supplied with trailing ? or &, as well as cases where not. 
+     *
+     *    return in formatted string like this:
+     *        "server?key1=value1&key2=value2&key3=value3"
+     * 
+     * WARNING: The altUrl parameter is deprecated and will be removed in 3.0.
+     *
+     * Parameters:
+     * newParams - {Object}
+     * altUrl - {String} Use this as the url instead of the layer's url
+     *   
+     * Returns: 
+     * {String}
+     */
+    getFullRequestString:function(newParams, altUrl) {
+
+        // if not altUrl passed in, use layer's url
+        var url = altUrl || this.url;
+        
+        // create a new params hashtable with all the layer params and the 
+        // new params together. then convert to string
+        var allParams = OpenLayers.Util.extend({}, this.params);
+        allParams = OpenLayers.Util.extend(allParams, newParams);
+        var paramsString = OpenLayers.Util.getParameterString(allParams);
+        
+        // if url is not a string, it should be an array of strings, 
+        // in which case we will deterministically select one of them in 
+        // order to evenly distribute requests to different urls.
+        //
+        if (OpenLayers.Util.isArray(url)) {
+            url = this.selectUrl(paramsString, url);
+        }   
+ 
+        // ignore parameters that are already in the url search string
+        var urlParams = 
+            OpenLayers.Util.upperCaseObject(OpenLayers.Util.getParameters(url));
+        for(var key in allParams) {
+            if(key.toUpperCase() in urlParams) {
+                delete allParams[key];
+            }
+        }
+        paramsString = OpenLayers.Util.getParameterString(allParams);
+        
+        return OpenLayers.Util.urlAppend(url, paramsString);
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.HTTPRequest"
+});
+/* ======================================================================
+    OpenLayers/Tile.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Util.js
+ */
+
+/**
+ * Class: OpenLayers.Tile 
+ * This is a class designed to designate a single tile, however
+ *     it is explicitly designed to do relatively little. Tiles store 
+ *     information about themselves -- such as the URL that they are related
+ *     to, and their size - but do not add themselves to the layer div 
+ *     automatically, for example. Create a new tile with the 
+ *     <OpenLayers.Tile> constructor, or a subclass. 
+ * 
+ * TBD 3.0 - remove reference to url in above paragraph
+ * 
+ */
+OpenLayers.Tile = OpenLayers.Class({
+    
+    /**
+     * APIProperty: events
+     * {<OpenLayers.Events>} An events object that handles all 
+     *     events on the tile.
+     *
+     * Register a listener for a particular event with the following syntax:
+     * (code)
+     * tile.events.register(type, obj, listener);
+     * (end)
+     *
+     * Supported event types:
+     * beforedraw - Triggered before the tile is drawn. Used to defer
+     *     drawing to an animation queue. To defer drawing, listeners need
+     *     to return false, which will abort drawing. The queue handler needs
+     *     to call <draw>(true) to actually draw the tile.
+     * loadstart - Triggered when tile loading starts.
+     * loadend - Triggered when tile loading ends.
+     * loaderror - Triggered before the loadend event (i.e. when the tile is
+     *     still hidden) if the tile could not be loaded.
+     * reload - Triggered when an already loading tile is reloaded.
+     * unload - Triggered before a tile is unloaded.
+     */
+    events: null,
+
+    /**
+     * APIProperty: eventListeners
+     * {Object} If set as an option at construction, the eventListeners
+     *     object will be registered with <OpenLayers.Events.on>.  Object
+     *     structure must be a listeners object as shown in the example for
+     *     the events.on method.
+     *
+     * This options can be set in the ``tileOptions`` option from
+     * <OpenLayers.Layer.Grid>. For example, to be notified of the
+     * ``loadend`` event of each tiles:
+     * (code)
+     * new OpenLayers.Layer.OSM('osm', 'http://tile.openstreetmap.org/${z}/${x}/${y}.png', {
+     *     tileOptions: {
+     *         eventListeners: {
+     *             'loadend': function(evt) {
+     *                 // do something on loadend
+     *             }
+     *         }
+     *     }
+     * });
+     * (end)
+     */
+    eventListeners: null,
+
+    /**
+     * Property: id 
+     * {String} null
+     */
+    id: null,
+    
+    /** 
+     * Property: layer 
+     * {<OpenLayers.Layer>} layer the tile is attached to 
+     */
+    layer: null,
+    
+    /**
+     * Property: url
+     * {String} url of the request.
+     *
+     * TBD 3.0 
+     * Deprecated. The base tile class does not need an url. This should be 
+     * handled in subclasses. Does not belong here.
+     */
+    url: null,
+
+    /** 
+     * APIProperty: bounds 
+     * {<OpenLayers.Bounds>} null
+     */
+    bounds: null,
+    
+    /** 
+     * Property: size 
+     * {<OpenLayers.Size>} null
+     */
+    size: null,
+    
+    /** 
+     * Property: position 
+     * {<OpenLayers.Pixel>} Top Left pixel of the tile
+     */    
+    position: null,
+    
+    /**
+     * Property: isLoading
+     * {Boolean} Is the tile loading?
+     */
+    isLoading: false,
+    
+    /** TBD 3.0 -- remove 'url' from the list of parameters to the constructor.
+     *             there is no need for the base tile class to have a url.
+     */
+
+    /** 
+     * Constructor: OpenLayers.Tile
+     * Constructor for a new <OpenLayers.Tile> instance.
+     * 
+     * Parameters:
+     * layer - {<OpenLayers.Layer>} layer that the tile will go in.
+     * position - {<OpenLayers.Pixel>}
+     * bounds - {<OpenLayers.Bounds>}
+     * url - {<String>}
+     * size - {<OpenLayers.Size>}
+     * options - {Object}
+     */   
+    initialize: function(layer, position, bounds, url, size, options) {
+        this.layer = layer;
+        this.position = position.clone();
+        this.setBounds(bounds);
+        this.url = url;
+        if (size) {
+            this.size = size.clone();
+        }
+
+        //give the tile a unique id based on its BBOX.
+        this.id = OpenLayers.Util.createUniqueID("Tile_");
+
+        OpenLayers.Util.extend(this, options);
+
+        this.events = new OpenLayers.Events(this);
+        if (this.eventListeners instanceof Object) {
+            this.events.on(this.eventListeners);
+        }
+    },
+
+    /**
+     * Method: unload
+     * Call immediately before destroying if you are listening to tile
+     * events, so that counters are properly handled if tile is still
+     * loading at destroy-time. Will only fire an event if the tile is
+     * still loading.
+     */
+    unload: function() {
+       if (this.isLoading) { 
+           this.isLoading = false; 
+           this.events.triggerEvent("unload"); 
+       }
+    },
+    
+    /** 
+     * APIMethod: destroy
+     * Nullify references to prevent circular references and memory leaks.
+     */
+    destroy:function() {
+        this.layer  = null;
+        this.bounds = null;
+        this.size = null;
+        this.position = null;
+        
+        if (this.eventListeners) {
+            this.events.un(this.eventListeners);
+        }
+        this.events.destroy();
+        this.eventListeners = null;
+        this.events = null;
+    },
+    
+    /**
+     * Method: draw
+     * Clear whatever is currently in the tile, then return whether or not 
+     *     it should actually be re-drawn. This is an example implementation
+     *     that can be overridden by subclasses. The minimum thing to do here
+     *     is to call <clear> and return the result from <shouldDraw>.
+     *
+     * Parameters:
+     * force - {Boolean} If true, the tile will not be cleared and no beforedraw
+     *     event will be fired. This is used for drawing tiles asynchronously
+     *     after drawing has been cancelled by returning false from a beforedraw
+     *     listener.
+     * 
+     * Returns:
+     * {Boolean} Whether or not the tile should actually be drawn. Returns null
+     *     if a beforedraw listener returned false.
+     */
+    draw: function(force) {
+        if (!force) {
+            //clear tile's contents and mark as not drawn
+            this.clear();
+        }
+        var draw = this.shouldDraw();
+        if (draw && !force && this.events.triggerEvent("beforedraw") === false) {
+            draw = null;
+        }
+        return draw;
+    },
+    
+    /**
+     * Method: shouldDraw
+     * Return whether or not the tile should actually be (re-)drawn. The only
+     * case where we *wouldn't* want to draw the tile is if the tile is outside
+     * its layer's maxExtent
+     * 
+     * Returns:
+     * {Boolean} Whether or not the tile should actually be drawn.
+     */
+    shouldDraw: function() {        
+        var withinMaxExtent = false,
+            maxExtent = this.layer.maxExtent;
+        if (maxExtent) {
+            var map = this.layer.map;
+            var worldBounds = map.baseLayer.wrapDateLine && map.getMaxExtent();
+            if (this.bounds.intersectsBounds(maxExtent, {inclusive: false, worldBounds: worldBounds})) {
+                withinMaxExtent = true;
+            }
+        }
+        
+        return withinMaxExtent || this.layer.displayOutsideMaxExtent;
+    },
+    
+    /**
+     * Method: setBounds
+     * Sets the bounds on this instance
+     *
+     * Parameters:
+     * bounds {<OpenLayers.Bounds>}
+     */
+    setBounds: function(bounds) {
+        bounds = bounds.clone();
+        if (this.layer.map.baseLayer.wrapDateLine) {
+            var worldExtent = this.layer.map.getMaxExtent(),
+                tolerance = this.layer.map.getResolution();
+            bounds = bounds.wrapDateLine(worldExtent, {
+                leftTolerance: tolerance,
+                rightTolerance: tolerance
+            });
+        }
+        this.bounds = bounds;
+    },
+    
+    /** 
+     * Method: moveTo
+     * Reposition the tile.
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     * position - {<OpenLayers.Pixel>}
+     * redraw - {Boolean} Call draw method on tile after moving.
+     *     Default is true
+     */
+    moveTo: function (bounds, position, redraw) {
+        if (redraw == null) {
+            redraw = true;
+        }
+
+        this.setBounds(bounds);
+        this.position = position.clone();
+        if (redraw) {
+            this.draw();
+        }
+    },
+
+    /** 
+     * Method: clear
+     * Clear the tile of any bounds/position-related data so that it can 
+     *     be reused in a new location.
+     */
+    clear: function(draw) {
+        // to be extended by subclasses
+    },
+    
+    CLASS_NAME: "OpenLayers.Tile"
+});
+/* ======================================================================
+    OpenLayers/Tile/Image.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Tile.js
+ * @requires OpenLayers/Animation.js
+ * @requires OpenLayers/Util.js
+ */
+
+/**
+ * Class: OpenLayers.Tile.Image
+ * Instances of OpenLayers.Tile.Image are used to manage the image tiles
+ * used by various layers.  Create a new image tile with the
+ * <OpenLayers.Tile.Image> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Tile>
+ */
+OpenLayers.Tile.Image = OpenLayers.Class(OpenLayers.Tile, {
+
+    /**
+     * APIProperty: events
+     * {<OpenLayers.Events>} An events object that handles all 
+     *     events on the tile.
+     *
+     * Register a listener for a particular event with the following syntax:
+     * (code)
+     * tile.events.register(type, obj, listener);
+     * (end)
+     *
+     * Supported event types (in addition to the <OpenLayers.Tile> events):
+     * beforeload - Triggered before an image is prepared for loading, when the
+     *     url for the image is known already. Listeners may call <setImage> on
+     *     the tile instance. If they do so, that image will be used and no new
+     *     one will be created.
+     */
+
+    /** 
+     * APIProperty: url
+     * {String} The URL of the image being requested. No default. Filled in by
+     * layer.getURL() function. May be modified by loadstart listeners.
+     */
+    url: null,
+    
+    /** 
+     * Property: imgDiv
+     * {HTMLImageElement} The image for this tile.
+     */
+    imgDiv: null,
+    
+    /**
+     * Property: frame
+     * {DOMElement} The image element is appended to the frame.  Any gutter on
+     * the image will be hidden behind the frame. If no gutter is set,
+     * this will be null.
+     */ 
+    frame: null, 
+
+    /** 
+     * Property: imageReloadAttempts
+     * {Integer} Attempts to load the image.
+     */
+    imageReloadAttempts: null,
+    
+    /**
+     * Property: layerAlphaHack
+     * {Boolean} True if the png alpha hack needs to be applied on the layer's div.
+     */
+    layerAlphaHack: null,
+    
+    /**
+     * Property: asyncRequestId
+     * {Integer} ID of an request to see if request is still valid. This is a
+     * number which increments by 1 for each asynchronous request.
+     */
+    asyncRequestId: null,
+    
+    /**
+     * APIProperty: maxGetUrlLength
+     * {Number} If set, requests that would result in GET urls with more
+     * characters than the number provided will be made using form-encoded
+     * HTTP POST. It is good practice to avoid urls that are longer than 2048
+     * characters.
+     *
+     * Caution:
+     * Older versions of Gecko based browsers (e.g. Firefox < 3.5) and most
+     * Opera versions do not fully support this option. On all browsers,
+     * transition effects are not supported if POST requests are used.
+     */
+    maxGetUrlLength: null,
+
+    /**
+     * Property: canvasContext
+     * {CanvasRenderingContext2D} A canvas context associated with
+     * the tile image.
+     */
+    canvasContext: null,
+    
+    /**
+     * APIProperty: crossOriginKeyword
+     * The value of the crossorigin keyword to use when loading images. This is
+     * only relevant when using <getCanvasContext> for tiles from remote
+     * origins and should be set to either 'anonymous' or 'use-credentials'
+     * for servers that send Access-Control-Allow-Origin headers with their
+     * tiles.
+     */
+    crossOriginKeyword: null,
+
+    /** TBD 3.0 - reorder the parameters to the init function to remove 
+     *             URL. the getUrl() function on the layer gets called on 
+     *             each draw(), so no need to specify it here.
+     */
+
+    /** 
+     * Constructor: OpenLayers.Tile.Image
+     * Constructor for a new <OpenLayers.Tile.Image> instance.
+     * 
+     * Parameters:
+     * layer - {<OpenLayers.Layer>} layer that the tile will go in.
+     * position - {<OpenLayers.Pixel>}
+     * bounds - {<OpenLayers.Bounds>}
+     * url - {<String>} Deprecated. Remove me in 3.0.
+     * size - {<OpenLayers.Size>}
+     * options - {Object}
+     */   
+    initialize: function(layer, position, bounds, url, size, options) {
+        OpenLayers.Tile.prototype.initialize.apply(this, arguments);
+
+        this.url = url; //deprecated remove me
+        
+        this.layerAlphaHack = this.layer.alpha && OpenLayers.Util.alphaHack();
+
+        if (this.maxGetUrlLength != null || this.layer.gutter || this.layerAlphaHack) {
+            // only create frame if it's needed
+            this.frame = document.createElement("div");
+            this.frame.style.position = "absolute";
+            this.frame.style.overflow = "hidden";
+        }
+        if (this.maxGetUrlLength != null) {
+            OpenLayers.Util.extend(this, OpenLayers.Tile.Image.IFrame);
+        }
+    },
+    
+    /** 
+     * APIMethod: destroy
+     * nullify references to prevent circular references and memory leaks
+     */
+    destroy: function() {
+        if (this.imgDiv)  {
+            this.clear();
+            this.imgDiv = null;
+            this.frame = null;
+        }
+        // don't handle async requests any more
+        this.asyncRequestId = null;
+        OpenLayers.Tile.prototype.destroy.apply(this, arguments);
+    },
+    
+    /**
+     * Method: draw
+     * Check that a tile should be drawn, and draw it.
+     * 
+     * Returns:
+     * {Boolean} Was a tile drawn? Or null if a beforedraw listener returned
+     *     false.
+     */
+    draw: function() {
+        var shouldDraw = OpenLayers.Tile.prototype.draw.apply(this, arguments);
+        if (shouldDraw) {
+            // The layer's reproject option is deprecated.
+            if (this.layer != this.layer.map.baseLayer && this.layer.reproject) {
+                // getBoundsFromBaseLayer is defined in deprecated.js.
+                this.bounds = this.getBoundsFromBaseLayer(this.position);
+            }
+            if (this.isLoading) {
+                //if we're already loading, send 'reload' instead of 'loadstart'.
+                this._loadEvent = "reload";
+            } else {
+                this.isLoading = true;
+                this._loadEvent = "loadstart";
+            }
+            this.renderTile();
+            this.positionTile();
+        } else if (shouldDraw === false) {
+            this.unload();
+        }
+        return shouldDraw;
+    },
+    
+    /**
+     * Method: renderTile
+     * Internal function to actually initialize the image tile,
+     *     position it correctly, and set its url.
+     */
+    renderTile: function() {
+        if (this.layer.async) {
+            // Asynchronous image requests call the asynchronous getURL method
+            // on the layer to fetch an image that covers 'this.bounds'.
+            var id = this.asyncRequestId = (this.asyncRequestId || 0) + 1;
+            this.layer.getURLasync(this.bounds, function(url) {
+                if (id == this.asyncRequestId) {
+                    this.url = url;
+                    this.initImage();
+                }
+            }, this);
+        } else {
+            // synchronous image requests get the url immediately.
+            this.url = this.layer.getURL(this.bounds);
+            this.initImage();
+        }
+    },
+
+    /**
+     * Method: positionTile
+     * Using the properties currenty set on the layer, position the tile correctly.
+     * This method is used both by the async and non-async versions of the Tile.Image
+     * code.
+     */
+    positionTile: function() {
+        var style = this.getTile().style,
+            size = this.frame ? this.size :
+                this.layer.getImageSize(this.bounds),
+            ratio = 1;
+        if (this.layer instanceof OpenLayers.Layer.Grid) {
+            ratio = this.layer.getServerResolution() / this.layer.map.getResolution();
+        }
+        style.left = this.position.x + "px";
+        style.top = this.position.y + "px";
+        style.width = Math.round(ratio * size.w) + "px";
+        style.height = Math.round(ratio * size.h) + "px";
+    },
+
+    /** 
+     * Method: clear
+     * Remove the tile from the DOM, clear it of any image related data so that
+     * it can be reused in a new location.
+     */
+    clear: function() {
+        OpenLayers.Tile.prototype.clear.apply(this, arguments);
+        var img = this.imgDiv;
+        if (img) {
+            var tile = this.getTile();
+            if (tile.parentNode === this.layer.div) {
+                this.layer.div.removeChild(tile);
+            }
+            this.setImgSrc();
+            if (this.layerAlphaHack === true) {
+                img.style.filter = "";
+            }
+            OpenLayers.Element.removeClass(img, "olImageLoadError");
+        }
+        this.canvasContext = null;
+    },
+    
+    /**
+     * Method: getImage
+     * Returns or creates and returns the tile image.
+     */
+    getImage: function() {
+        if (!this.imgDiv) {
+            this.imgDiv = OpenLayers.Tile.Image.IMAGE.cloneNode(false);
+
+            var style = this.imgDiv.style;
+            if (this.frame) {
+                var left = 0, top = 0;
+                if (this.layer.gutter) {
+                    left = this.layer.gutter / this.layer.tileSize.w * 100;
+                    top = this.layer.gutter / this.layer.tileSize.h * 100;
+                }
+                style.left = -left + "%";
+                style.top = -top + "%";
+                style.width = (2 * left + 100) + "%";
+                style.height = (2 * top + 100) + "%";
+            }
+            style.visibility = "hidden";
+            style.opacity = 0;
+            if (this.layer.opacity < 1) {
+                style.filter = 'alpha(opacity=' +
+                               (this.layer.opacity * 100) +
+                               ')';
+            }
+            style.position = "absolute";
+            if (this.layerAlphaHack) {
+                // move the image out of sight
+                style.paddingTop = style.height;
+                style.height = "0";
+                style.width = "100%";
+            }
+            if (this.frame) {
+                this.frame.appendChild(this.imgDiv);
+            }
+        }
+
+        return this.imgDiv;
+    },
+    
+    /**
+     * APIMethod: setImage
+     * Sets the image element for this tile. This method should only be called
+     * from beforeload listeners.
+     *
+     * Parameters
+     * img - {HTMLImageElement} The image to use for this tile.
+     */
+    setImage: function(img) {
+        this.imgDiv = img;
+    },
+
+    /**
+     * Method: initImage
+     * Creates the content for the frame on the tile.
+     */
+    initImage: function() {
+        if (!this.url && !this.imgDiv) {
+            // fast path out - if there is no tile url and no previous image
+            this.isLoading = false;
+            return;
+        }
+        this.events.triggerEvent('beforeload');
+        this.layer.div.appendChild(this.getTile());
+        this.events.triggerEvent(this._loadEvent);
+        var img = this.getImage();
+        var src = img.getAttribute('src') || '';
+        if (this.url && OpenLayers.Util.isEquivalentUrl(src, this.url)) {
+            this._loadTimeout = window.setTimeout(
+                OpenLayers.Function.bind(this.onImageLoad, this), 0
+            );
+        } else {
+            this.stopLoading();
+            if (this.crossOriginKeyword) {
+                img.removeAttribute("crossorigin");
+            }
+            OpenLayers.Event.observe(img, "load",
+                OpenLayers.Function.bind(this.onImageLoad, this)
+            );
+            OpenLayers.Event.observe(img, "error",
+                OpenLayers.Function.bind(this.onImageError, this)
+            );
+            this.imageReloadAttempts = 0;
+            this.setImgSrc(this.url);
+        }
+    },
+    
+    /**
+     * Method: setImgSrc
+     * Sets the source for the tile image
+     *
+     * Parameters:
+     * url - {String} or undefined to hide the image
+     */
+    setImgSrc: function(url) {
+        var img = this.imgDiv;
+        if (url) {
+            img.style.visibility = 'hidden';
+            img.style.opacity = 0;
+            // don't set crossOrigin if the url is a data URL
+            if (this.crossOriginKeyword) {
+                if (url.substr(0, 5) !== 'data:') {
+                    img.setAttribute("crossorigin", this.crossOriginKeyword);
+                } else {
+                    img.removeAttribute("crossorigin");
+                }
+            }
+            img.src = url;
+        } else {
+            // Remove reference to the image, and leave it to the browser's
+            // caching and garbage collection.
+            this.stopLoading();
+            this.imgDiv = null;
+            if (img.parentNode) {
+                img.parentNode.removeChild(img);
+            }
+        }
+    },
+    
+    /**
+     * Method: getTile
+     * Get the tile's markup.
+     *
+     * Returns:
+     * {DOMElement} The tile's markup
+     */
+    getTile: function() {
+        return this.frame ? this.frame : this.getImage();
+    },
+
+    /**
+     * Method: createBackBuffer
+     * Create a backbuffer for this tile. A backbuffer isn't exactly a clone
+     * of the tile's markup, because we want to avoid the reloading of the
+     * image. So we clone the frame, and steal the image from the tile.
+     *
+     * Returns:
+     * {DOMElement} The markup, or undefined if the tile has no image
+     * or if it's currently loading.
+     */
+    createBackBuffer: function() {
+        if (!this.imgDiv || this.isLoading) {
+            return;
+        }
+        var backBuffer;
+        if (this.frame) {
+            backBuffer = this.frame.cloneNode(false);
+            backBuffer.appendChild(this.imgDiv);
+        } else {
+            backBuffer = this.imgDiv;
+        }
+        this.imgDiv = null;
+        return backBuffer;
+    },
+
+    /**
+     * Method: onImageLoad
+     * Handler for the image onload event
+     */
+    onImageLoad: function() {
+        var img = this.imgDiv;
+        this.stopLoading();
+        img.style.visibility = 'inherit';
+        img.style.opacity = this.layer.opacity;
+        this.isLoading = false;
+        this.canvasContext = null;
+        this.events.triggerEvent("loadend");
+
+        if (this.layerAlphaHack === true) {
+            img.style.filter =
+                "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" +
+                img.src + "', sizingMethod='scale')";
+        }
+    },
+    
+    /**
+     * Method: onImageError
+     * Handler for the image onerror event
+     */
+    onImageError: function() {
+        var img = this.imgDiv;
+        if (img.src != null) {
+            this.imageReloadAttempts++;
+            if (this.imageReloadAttempts <= OpenLayers.IMAGE_RELOAD_ATTEMPTS) {
+                this.setImgSrc(this.layer.getURL(this.bounds));
+            } else {
+                OpenLayers.Element.addClass(img, "olImageLoadError");
+                this.events.triggerEvent("loaderror");
+                this.onImageLoad();
+            }
+        }
+    },
+    
+    /**
+     * Method: stopLoading
+     * Stops a loading sequence so <onImageLoad> won't be executed.
+     */
+    stopLoading: function() {
+        OpenLayers.Event.stopObservingElement(this.imgDiv);
+        window.clearTimeout(this._loadTimeout);
+        delete this._loadTimeout;
+    },
+
+    /**
+     * APIMethod: getCanvasContext
+     * Returns a canvas context associated with the tile image (with
+     * the image drawn on it).
+     * Returns undefined if the browser does not support canvas, if
+     * the tile has no image or if it's currently loading.
+     *
+     * The function returns a canvas context instance but the
+     * underlying canvas is still available in the 'canvas' property:
+     * (code)
+     * var context = tile.getCanvasContext();
+     * if (context) {
+     *     var data = context.canvas.toDataURL('image/jpeg');
+     * }
+     * (end)
+     *
+     * Returns:
+     * {Boolean}
+     */
+    getCanvasContext: function() {
+        if (OpenLayers.CANVAS_SUPPORTED && this.imgDiv && !this.isLoading) {
+            if (!this.canvasContext) {
+                var canvas = document.createElement("canvas");
+                canvas.width = this.size.w;
+                canvas.height = this.size.h;
+                this.canvasContext = canvas.getContext("2d");
+                this.canvasContext.drawImage(this.imgDiv, 0, 0);
+            }
+            return this.canvasContext;
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Tile.Image"
+
+});
+
+/** 
+ * Constant: OpenLayers.Tile.Image.IMAGE
+ * {HTMLImageElement} The image for a tile.
+ */
+OpenLayers.Tile.Image.IMAGE = (function() {
+    var img = new Image();
+    img.className = "olTileImage";
+    // avoid image gallery menu in IE6
+    img.galleryImg = "no";
+    return img;
+}());
+
+/* ======================================================================
+    OpenLayers/Layer/Grid.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Layer/HTTPRequest.js
+ * @requires OpenLayers/Tile/Image.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.Grid
+ * Base class for layers that use a lattice of tiles.  Create a new grid
+ * layer with the <OpenLayers.Layer.Grid> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer.HTTPRequest>
+ */
+OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
+    
+    /**
+     * APIProperty: tileSize
+     * {<OpenLayers.Size>}
+     */
+    tileSize: null,
+
+    /**
+     * Property: tileOriginCorner
+     * {String} If the <tileOrigin> property is not provided, the tile origin 
+     *     will be derived from the layer's <maxExtent>.  The corner of the 
+     *     <maxExtent> used is determined by this property.  Acceptable values
+     *     are "tl" (top left), "tr" (top right), "bl" (bottom left), and "br"
+     *     (bottom right).  Default is "bl".
+     */
+    tileOriginCorner: "bl",
+    
+    /**
+     * APIProperty: tileOrigin
+     * {<OpenLayers.LonLat>} Optional origin for aligning the grid of tiles.
+     *     If provided, requests for tiles at all resolutions will be aligned
+     *     with this location (no tiles shall overlap this location).  If
+     *     not provided, the grid of tiles will be aligned with the layer's
+     *     <maxExtent>.  Default is ``null``.
+     */
+    tileOrigin: null,
+    
+    /** APIProperty: tileOptions
+     *  {Object} optional configuration options for <OpenLayers.Tile> instances
+     *  created by this Layer, if supported by the tile class.
+     */
+    tileOptions: null,
+
+    /**
+     * APIProperty: tileClass
+     * {<OpenLayers.Tile>} The tile class to use for this layer.
+     *     Defaults is OpenLayers.Tile.Image.
+     */
+    tileClass: OpenLayers.Tile.Image,
+    
+    /**
+     * Property: grid
+     * {Array(Array(<OpenLayers.Tile>))} This is an array of rows, each row is 
+     *     an array of tiles.
+     */
+    grid: null,
+
+    /**
+     * APIProperty: singleTile
+     * {Boolean} Moves the layer into single-tile mode, meaning that one tile 
+     *     will be loaded. The tile's size will be determined by the 'ratio'
+     *     property. When the tile is dragged such that it does not cover the 
+     *     entire viewport, it is reloaded.
+     */
+    singleTile: false,
+
+    /** APIProperty: ratio
+     *  {Float} Used only when in single-tile mode, this specifies the 
+     *          ratio of the size of the single tile to the size of the map.
+     *          Default value is 1.5.
+     */
+    ratio: 1.5,
+
+    /**
+     * APIProperty: buffer
+     * {Integer} Used only when in gridded mode, this specifies the number of 
+     *           extra rows and colums of tiles on each side which will
+     *           surround the minimum grid tiles to cover the map.
+     *           For very slow loading layers, a larger value may increase
+     *           performance somewhat when dragging, but will increase bandwidth
+     *           use significantly. 
+     */
+    buffer: 0,
+
+    /**
+     * APIProperty: transitionEffect
+     * {String} The transition effect to use when the map is zoomed.
+     * Two posible values:
+     *
+     * "resize" - Existing tiles are resized on zoom to provide a visual
+     *     effect of the zoom having taken place immediately.  As the
+     *     new tiles become available, they are drawn on top of the
+     *     resized tiles (this is the default setting).
+     * "map-resize" - Existing tiles are resized on zoom and placed below the
+     *     base layer.  New tiles for the base layer will cover existing tiles.
+     *     This setting is recommended when having an overlay duplicated during
+     *     the transition is undesirable (e.g. street labels or big transparent
+     *     fills). 
+     * null - No transition effect.
+     *
+     * Using "resize" on non-opaque layers can cause undesired visual
+     * effects.  Set transitionEffect to null in this case.
+     */
+    transitionEffect: "resize",
+
+    /**
+     * APIProperty: numLoadingTiles
+     * {Integer} How many tiles are still loading?
+     */
+    numLoadingTiles: 0,
+
+    /**
+     * Property: serverResolutions
+     * {Array(Number}} This property is documented in subclasses as
+     *     an API property.
+     */
+    serverResolutions: null,
+
+    /**
+     * Property: loading
+     * {Boolean} Indicates if tiles are being loaded.
+     */
+    loading: false,
+    
+    /**
+     * Property: backBuffer
+     * {DOMElement} The back buffer.
+     */
+    backBuffer: null,
+
+    /**
+     * Property: gridResolution
+     * {Number} The resolution of the current grid. Used for backbuffer and
+     *     client zoom. This property is updated every time the grid is
+     *     initialized.
+     */
+    gridResolution: null,
+
+    /**
+     * Property: backBufferResolution
+     * {Number} The resolution of the current back buffer. This property is
+     *     updated each time a back buffer is created.
+     */
+    backBufferResolution: null,
+
+    /**
+     * Property: backBufferLonLat
+     * {Object} The top-left corner of the current back buffer. Includes lon
+     *     and lat properties. This object is updated each time a back buffer
+     *     is created.
+     */
+    backBufferLonLat: null,
+
+    /**
+     * Property: backBufferTimerId
+     * {Number} The id of the back buffer timer. This timer is used to
+     *     delay the removal of the back buffer, thereby preventing
+     *     flash effects caused by tile animation.
+     */
+    backBufferTimerId: null,
+
+    /**
+     * APIProperty: removeBackBufferDelay
+     * {Number} Delay for removing the backbuffer when all tiles have finished
+     *     loading. Can be set to 0 when no css opacity transitions for the
+     *     olTileImage class are used. Default is 0 for <singleTile> layers,
+     *     2500 for tiled layers. See <className> for more information on
+     *     tile animation.
+     */
+    removeBackBufferDelay: null,
+
+    /**
+     * APIProperty: className
+     * {String} Name of the class added to the layer div. If not set in the
+     *     options passed to the constructor then className defaults to
+     *     "olLayerGridSingleTile" for single tile layers (see <singleTile>),
+     *     and "olLayerGrid" for non single tile layers.
+     *
+     * Note:
+     *
+     * The displaying of tiles is not animated by default for single tile
+     *     layers - OpenLayers' default theme (style.css) includes this:
+     * (code)
+     * .olLayerGrid .olTileImage {
+     *     -webkit-transition: opacity 0.2s linear;
+     *     -moz-transition: opacity 0.2s linear;
+     *     -o-transition: opacity 0.2s linear;
+     *     transition: opacity 0.2s linear;
+     *  }
+     * (end)
+     * To animate tile displaying for any grid layer the following
+     *     CSS rule can be used:
+     * (code)
+     * .olTileImage {
+     *     -webkit-transition: opacity 0.2s linear;
+     *     -moz-transition: opacity 0.2s linear;
+     *     -o-transition: opacity 0.2s linear;
+     *     transition: opacity 0.2s linear;
+     * }
+     * (end)
+     * In that case, to avoid flash effects, <removeBackBufferDelay>
+     *     should not be zero.
+     */
+    className: null,
+    
+    /**
+     * Register a listener for a particular event with the following syntax:
+     * (code)
+     * layer.events.register(type, obj, listener);
+     * (end)
+     *
+     * Listeners will be called with a reference to an event object.  The
+     *     properties of this event depends on exactly what happened.
+     *
+     * All event objects have at least the following properties:
+     * object - {Object} A reference to layer.events.object.
+     * element - {DOMElement} A reference to layer.events.element.
+     *
+     * Supported event types:
+     * addtile - Triggered when a tile is added to this layer. Listeners receive
+     *     an object as first argument, which has a tile property that
+     *     references the tile that has been added.
+     * tileloadstart - Triggered when a tile starts loading. Listeners receive
+     *     an object as first argument, which has a tile property that
+     *     references the tile that starts loading.
+     * tileloaded - Triggered when each new tile is
+     *     loaded, as a means of progress update to listeners.
+     *     listeners can access 'numLoadingTiles' if they wish to keep
+     *     track of the loading progress. Listeners are called with an object
+     *     with a 'tile' property as first argument, making the loaded tile
+     *     available to the listener, and an 'aborted' property, which will be
+     *     true when loading was aborted and no tile data is available.
+     * tileerror - Triggered before the tileloaded event (i.e. when the tile is
+     *     still hidden) if a tile failed to load. Listeners receive an object
+     *     as first argument, which has a tile property that references the
+     *     tile that could not be loaded.
+     * retile - Triggered when the layer recreates its tile grid.
+     */
+
+    /**
+     * Property: gridLayout
+     * {Object} Object containing properties tilelon, tilelat, startcol,
+     * startrow
+     */
+    gridLayout: null,
+    
+    /**
+     * Property: rowSign
+     * {Number} 1 for grids starting at the top, -1 for grids starting at the
+     * bottom. This is used for several grid index and offset calculations.
+     */
+    rowSign: null,
+
+    /**
+     * Property: transitionendEvents
+     * {Array} Event names for transitionend
+     */
+    transitionendEvents: [
+        'transitionend', 'webkitTransitionEnd', 'otransitionend',
+        'oTransitionEnd'
+    ],
+
+    /**
+     * Constructor: OpenLayers.Layer.Grid
+     * Create a new grid layer
+     *
+     * Parameters:
+     * name - {String}
+     * url - {String}
+     * params - {Object}
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, url, params, options) {
+        OpenLayers.Layer.HTTPRequest.prototype.initialize.apply(this, 
+                                                                arguments);
+        this.grid = [];
+        this._removeBackBuffer = OpenLayers.Function.bind(this.removeBackBuffer, this);
+
+        this.initProperties();
+
+        this.rowSign = this.tileOriginCorner.substr(0, 1) === "t" ? 1 : -1;
+    },
+
+    /**
+     * Method: initProperties
+     * Set any properties that depend on the value of singleTile.
+     * Currently sets removeBackBufferDelay and className
+     */
+    initProperties: function() {
+        if (this.options.removeBackBufferDelay === undefined) {
+            this.removeBackBufferDelay = this.singleTile ? 0 : 2500;
+        }
+
+        if (this.options.className === undefined) {
+            this.className = this.singleTile ? 'olLayerGridSingleTile' :
+                                               'olLayerGrid';
+        }
+    },
+
+    /**
+     * Method: setMap
+     *
+     * Parameters:
+     * map - {<OpenLayers.Map>} The map.
+     */
+    setMap: function(map) {
+        OpenLayers.Layer.HTTPRequest.prototype.setMap.call(this, map);
+        OpenLayers.Element.addClass(this.div, this.className);
+    },
+
+    /**
+     * Method: removeMap
+     * Called when the layer is removed from the map.
+     *
+     * Parameters:
+     * map - {<OpenLayers.Map>} The map.
+     */
+    removeMap: function(map) {
+        this.removeBackBuffer();
+    },
+
+    /**
+     * APIMethod: destroy
+     * Deconstruct the layer and clear the grid.
+     */
+    destroy: function() {
+        this.removeBackBuffer();
+        this.clearGrid();
+
+        this.grid = null;
+        this.tileSize = null;
+        OpenLayers.Layer.HTTPRequest.prototype.destroy.apply(this, arguments); 
+    },
+
+    /**
+     * APIMethod: mergeNewParams
+     * Refetches tiles with new params merged, keeping a backbuffer. Each
+     * loading new tile will have a css class of '.olTileReplacing'. If a
+     * stylesheet applies a 'display: none' style to that class, any fade-in
+     * transition will not apply, and backbuffers for each tile will be removed
+     * as soon as the tile is loaded.
+     * 
+     * Parameters:
+     * newParams - {Object}
+     *
+     * Returns:
+     * redrawn: {Boolean} whether the layer was actually redrawn.
+     */
+
+    /**
+     * Method: clearGrid
+     * Go through and remove all tiles from the grid, calling
+     *    destroy() on each of them to kill circular references
+     */
+    clearGrid:function() {
+        if (this.grid) {
+            for(var iRow=0, len=this.grid.length; iRow<len; iRow++) {
+                var row = this.grid[iRow];
+                for(var iCol=0, clen=row.length; iCol<clen; iCol++) {
+                    var tile = row[iCol];
+                    this.destroyTile(tile);
+                }
+            }
+            this.grid = [];
+            this.gridResolution = null;
+            this.gridLayout = null;
+        }
+    },
+
+   /**
+    * APIMethod: addOptions
+    * 
+    * Parameters:
+    * newOptions - {Object}
+    * reinitialize - {Boolean} If set to true, and if resolution options of the
+    *     current baseLayer were changed, the map will be recentered to make
+    *     sure that it is displayed with a valid resolution, and a
+    *     changebaselayer event will be triggered.
+    */
+    addOptions: function (newOptions, reinitialize) {
+        var singleTileChanged = newOptions.singleTile !== undefined && 
+            newOptions.singleTile !== this.singleTile;
+        OpenLayers.Layer.HTTPRequest.prototype.addOptions.apply(this, arguments);
+        if (this.map && singleTileChanged) {
+            this.initProperties();
+            this.clearGrid();
+            this.tileSize = this.options.tileSize;
+            this.setTileSize();
+            this.moveTo(null, true);
+        }
+    },
+    
+    /**
+     * APIMethod: clone
+     * Create a clone of this layer
+     *
+     * Parameters:
+     * obj - {Object} Is this ever used?
+     * 
+     * Returns:
+     * {<OpenLayers.Layer.Grid>} An exact clone of this OpenLayers.Layer.Grid
+     */
+    clone: function (obj) {
+        
+        if (obj == null) {
+            obj = new OpenLayers.Layer.Grid(this.name,
+                                            this.url,
+                                            this.params,
+                                            this.getOptions());
+        }
+
+        //get all additions from superclasses
+        obj = OpenLayers.Layer.HTTPRequest.prototype.clone.apply(this, [obj]);
+
+        // copy/set any non-init, non-simple values here
+        if (this.tileSize != null) {
+            obj.tileSize = this.tileSize.clone();
+        }
+        
+        // we do not want to copy reference to grid, so we make a new array
+        obj.grid = [];
+        obj.gridResolution = null;
+        // same for backbuffer
+        obj.backBuffer = null;
+        obj.backBufferTimerId = null;
+        obj.loading = false;
+        obj.numLoadingTiles = 0;
+
+        return obj;
+    },    
+
+    /**
+     * Method: moveTo
+     * This function is called whenever the map is moved. All the moving
+     * of actual 'tiles' is done by the map, but moveTo's role is to accept
+     * a bounds and make sure the data that that bounds requires is pre-loaded.
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     * zoomChanged - {Boolean}
+     * dragging - {Boolean}
+     */
+    moveTo:function(bounds, zoomChanged, dragging) {
+
+        OpenLayers.Layer.HTTPRequest.prototype.moveTo.apply(this, arguments);
+
+        bounds = bounds || this.map.getExtent();
+
+        if (bounds != null) {
+             
+            // if grid is empty or zoom has changed, we *must* re-tile
+            var forceReTile = !this.grid.length || zoomChanged;
+            
+            // total bounds of the tiles
+            var tilesBounds = this.getTilesBounds();            
+
+            // the new map resolution
+            var resolution = this.map.getResolution();
+
+            // the server-supported resolution for the new map resolution
+            var serverResolution = this.getServerResolution(resolution);
+
+            if (this.singleTile) {
+                
+                // We want to redraw whenever even the slightest part of the 
+                //  current bounds is not contained by our tile.
+                //  (thus, we do not specify partial -- its default is false)
+
+                if ( forceReTile ||
+                     (!dragging && !tilesBounds.containsBounds(bounds))) {
+
+                    // In single tile mode with no transition effect, we insert
+                    // a non-scaled backbuffer when the layer is moved. But if
+                    // a zoom occurs right after a move, i.e. before the new
+                    // image is received, we need to remove the backbuffer, or
+                    // an ill-positioned image will be visible during the zoom
+                    // transition.
+
+                    if(zoomChanged && this.transitionEffect !== 'resize') {
+                        this.removeBackBuffer();
+                    }
+
+                    if(!zoomChanged || this.transitionEffect === 'resize') {
+                        this.applyBackBuffer(resolution);
+                    }
+
+                    this.initSingleTile(bounds);
+                }
+            } else {
+
+                // if the bounds have changed such that they are not even 
+                // *partially* contained by our tiles (e.g. when user has 
+                // programmatically panned to the other side of the earth on
+                // zoom level 18), then moveGriddedTiles could potentially have
+                // to run through thousands of cycles, so we want to reTile
+                // instead (thus, partial true).  
+                forceReTile = forceReTile ||
+                    !tilesBounds.intersectsBounds(bounds, {
+                        worldBounds: this.map.baseLayer.wrapDateLine &&
+                            this.map.getMaxExtent()
+                    });
+
+                if(forceReTile) {
+                    if(zoomChanged && (this.transitionEffect === 'resize' ||
+                                          this.gridResolution === resolution)) {
+                        this.applyBackBuffer(resolution);
+                    }
+                    this.initGriddedTiles(bounds);
+                } else {
+                    this.moveGriddedTiles();
+                }
+            }
+        }
+    },
+
+    /**
+     * Method: getTileData
+     * Given a map location, retrieve a tile and the pixel offset within that
+     *     tile corresponding to the location.  If there is not an existing 
+     *     tile in the grid that covers the given location, null will be 
+     *     returned.
+     *
+     * Parameters:
+     * loc - {<OpenLayers.LonLat>} map location
+     *
+     * Returns:
+     * {Object} Object with the following properties: tile ({<OpenLayers.Tile>}),
+     *     i ({Number} x-pixel offset from top left), and j ({Integer} y-pixel
+     *     offset from top left).
+     */
+    getTileData: function(loc) {
+        var data = null,
+            x = loc.lon,
+            y = loc.lat,
+            numRows = this.grid.length;
+
+        if (this.map && numRows) {
+            var res = this.map.getResolution(),
+                tileWidth = this.tileSize.w,
+                tileHeight = this.tileSize.h,
+                bounds = this.grid[0][0].bounds,
+                left = bounds.left,
+                top = bounds.top;
+
+            if (x < left) {
+                // deal with multiple worlds
+                if (this.map.baseLayer.wrapDateLine) {
+                    var worldWidth = this.map.getMaxExtent().getWidth();
+                    var worldsAway = Math.ceil((left - x) / worldWidth);
+                    x += worldWidth * worldsAway;
+                }
+            }
+            // tile distance to location (fractional number of tiles);
+            var dtx = (x - left) / (res * tileWidth);
+            var dty = (top - y) / (res * tileHeight);
+            // index of tile in grid
+            var col = Math.floor(dtx);
+            var row = Math.floor(dty);
+            if (row >= 0 && row < numRows) {
+                var tile = this.grid[row][col];
+                if (tile) {
+                    data = {
+                        tile: tile,
+                        // pixel index within tile
+                        i: Math.floor((dtx - col) * tileWidth),
+                        j: Math.floor((dty - row) * tileHeight)
+                    };                    
+                }
+            }
+        }
+        return data;
+    },
+    
+    /**
+     * Method: destroyTile
+     *
+     * Parameters:
+     * tile - {<OpenLayers.Tile>}
+     */
+    destroyTile: function(tile) {
+        this.removeTileMonitoringHooks(tile);
+        tile.destroy();
+    },
+
+    /**
+     * Method: getServerResolution
+     * Return the closest server-supported resolution.
+     *
+     * Parameters:
+     * resolution - {Number} The base resolution. If undefined the
+     *     map resolution is used.
+     *
+     * Returns:
+     * {Number} The closest server resolution value.
+     */
+    getServerResolution: function(resolution) {
+        var distance = Number.POSITIVE_INFINITY;
+        resolution = resolution || this.map.getResolution();
+        if(this.serverResolutions &&
+           OpenLayers.Util.indexOf(this.serverResolutions, resolution) === -1) {
+            var i, newDistance, newResolution, serverResolution;
+            for(i=this.serverResolutions.length-1; i>= 0; i--) {
+                newResolution = this.serverResolutions[i];
+                newDistance = Math.abs(newResolution - resolution);
+                if (newDistance > distance) {
+                    break;
+                }
+                distance = newDistance;
+                serverResolution = newResolution;
+            }
+            resolution = serverResolution;
+        }
+        return resolution;
+    },
+
+    /**
+     * Method: getServerZoom
+     * Return the zoom value corresponding to the best matching server
+     * resolution, taking into account <serverResolutions> and <zoomOffset>.
+     *
+     * Returns:
+     * {Number} The closest server supported zoom. This is not the map zoom
+     *     level, but an index of the server's resolutions array.
+     */
+    getServerZoom: function() {
+        var resolution = this.getServerResolution();
+        return this.serverResolutions ?
+            OpenLayers.Util.indexOf(this.serverResolutions, resolution) :
+            this.map.getZoomForResolution(resolution) + (this.zoomOffset || 0);
+    },
+
+    /**
+     * Method: applyBackBuffer
+     * Create, insert, scale and position a back buffer for the layer.
+     *
+     * Parameters:
+     * resolution - {Number} The resolution to transition to.
+     */
+    applyBackBuffer: function(resolution) {
+        if(this.backBufferTimerId !== null) {
+            this.removeBackBuffer();
+        }
+        var backBuffer = this.backBuffer;
+        if(!backBuffer) {
+            backBuffer = this.createBackBuffer();
+            if(!backBuffer) {
+                return;
+            }
+            if (resolution === this.gridResolution) {
+                this.div.insertBefore(backBuffer, this.div.firstChild);
+            } else {
+                this.map.baseLayer.div.parentNode.insertBefore(backBuffer, this.map.baseLayer.div);
+            }
+            this.backBuffer = backBuffer;
+
+            // set some information in the instance for subsequent
+            // calls to applyBackBuffer where the same back buffer
+            // is reused
+            var topLeftTileBounds = this.grid[0][0].bounds;
+            this.backBufferLonLat = {
+                lon: topLeftTileBounds.left,
+                lat: topLeftTileBounds.top
+            };
+            this.backBufferResolution = this.gridResolution;
+        }
+        
+        var ratio = this.backBufferResolution / resolution;
+
+        // scale the tiles inside the back buffer
+        var tiles = backBuffer.childNodes, tile;
+        for (var i=tiles.length-1; i>=0; --i) {
+            tile = tiles[i];
+            tile.style.top = ((ratio * tile._i * tile._h) | 0) + 'px';
+            tile.style.left = ((ratio * tile._j * tile._w) | 0) + 'px';
+            tile.style.width = Math.round(ratio * tile._w) + 'px';
+            tile.style.height = Math.round(ratio * tile._h) + 'px';
+        }
+
+        // and position it (based on the grid's top-left corner)
+        var position = this.getViewPortPxFromLonLat(
+                this.backBufferLonLat, resolution);
+        var leftOffset = this.map.layerContainerOriginPx.x;
+        var topOffset = this.map.layerContainerOriginPx.y;
+        backBuffer.style.left = Math.round(position.x - leftOffset) + 'px';
+        backBuffer.style.top = Math.round(position.y - topOffset) + 'px';
+    },
+
+    /**
+     * Method: createBackBuffer
+     * Create a back buffer.
+     *
+     * Returns:
+     * {DOMElement} The DOM element for the back buffer, undefined if the
+     * grid isn't initialized yet.
+     */
+    createBackBuffer: function() {
+        var backBuffer;
+        if(this.grid.length > 0) {
+            backBuffer = document.createElement('div');
+            backBuffer.id = this.div.id + '_bb';
+            backBuffer.className = 'olBackBuffer';
+            backBuffer.style.position = 'absolute';
+            var map = this.map;
+            backBuffer.style.zIndex = this.transitionEffect === 'resize' ?
+                    this.getZIndex() - 1 :
+                    // 'map-resize':
+                    map.Z_INDEX_BASE.BaseLayer -
+                            (map.getNumLayers() - map.getLayerIndex(this));
+            for(var i=0, lenI=this.grid.length; i<lenI; i++) {
+                for(var j=0, lenJ=this.grid[i].length; j<lenJ; j++) {
+                    var tile = this.grid[i][j],
+                        markup = this.grid[i][j].createBackBuffer();
+                    if (markup) {
+                        markup._i = i;
+                        markup._j = j;
+                        markup._w = tile.size.w;
+                        markup._h = tile.size.h;
+                        markup.id = tile.id + '_bb';
+                        backBuffer.appendChild(markup);
+                    }
+                }
+            }
+        }
+        return backBuffer;
+    },
+
+    /**
+     * Method: removeBackBuffer
+     * Remove back buffer from DOM.
+     */
+    removeBackBuffer: function() {
+        if (this._transitionElement) {
+            for (var i=this.transitionendEvents.length-1; i>=0; --i) {
+                OpenLayers.Event.stopObserving(this._transitionElement,
+                    this.transitionendEvents[i], this._removeBackBuffer);
+            }
+            delete this._transitionElement;
+        }
+        if(this.backBuffer) {
+            if (this.backBuffer.parentNode) {
+                this.backBuffer.parentNode.removeChild(this.backBuffer);
+            }
+            this.backBuffer = null;
+            this.backBufferResolution = null;
+            if(this.backBufferTimerId !== null) {
+                window.clearTimeout(this.backBufferTimerId);
+                this.backBufferTimerId = null;
+            }
+        }
+    },
+
+    /**
+     * Method: moveByPx
+     * Move the layer based on pixel vector.
+     *
+     * Parameters:
+     * dx - {Number}
+     * dy - {Number}
+     */
+    moveByPx: function(dx, dy) {
+        if (!this.singleTile) {
+            this.moveGriddedTiles();
+        }
+    },
+
+    /**
+     * APIMethod: setTileSize
+     * Check if we are in singleTile mode and if so, set the size as a ratio
+     *     of the map size (as specified by the layer's 'ratio' property).
+     * 
+     * Parameters:
+     * size - {<OpenLayers.Size>}
+     */
+    setTileSize: function(size) { 
+        if (this.singleTile) {
+            size = this.map.getSize();
+            size.h = parseInt(size.h * this.ratio, 10);
+            size.w = parseInt(size.w * this.ratio, 10);
+        } 
+        OpenLayers.Layer.HTTPRequest.prototype.setTileSize.apply(this, [size]);
+    },
+
+    /**
+     * APIMethod: getTilesBounds
+     * Return the bounds of the tile grid.
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} A Bounds object representing the bounds of all the
+     *     currently loaded tiles (including those partially or not at all seen 
+     *     onscreen).
+     */
+    getTilesBounds: function() {    
+        var bounds = null; 
+        
+        var length = this.grid.length;
+        if (length) {
+            var bottomLeftTileBounds = this.grid[length - 1][0].bounds,
+                width = this.grid[0].length * bottomLeftTileBounds.getWidth(),
+                height = this.grid.length * bottomLeftTileBounds.getHeight();
+            
+            bounds = new OpenLayers.Bounds(bottomLeftTileBounds.left, 
+                                           bottomLeftTileBounds.bottom,
+                                           bottomLeftTileBounds.left + width, 
+                                           bottomLeftTileBounds.bottom + height);
+        }   
+        return bounds;
+    },
+
+    /**
+     * Method: initSingleTile
+     * 
+     * Parameters: 
+     * bounds - {<OpenLayers.Bounds>}
+     */
+    initSingleTile: function(bounds) {
+        this.events.triggerEvent("retile");
+
+        //determine new tile bounds
+        var center = bounds.getCenterLonLat();
+        var tileWidth = bounds.getWidth() * this.ratio;
+        var tileHeight = bounds.getHeight() * this.ratio;
+                                       
+        var tileBounds = 
+            new OpenLayers.Bounds(center.lon - (tileWidth/2),
+                                  center.lat - (tileHeight/2),
+                                  center.lon + (tileWidth/2),
+                                  center.lat + (tileHeight/2));
+  
+        var px = this.map.getLayerPxFromLonLat({
+            lon: tileBounds.left,
+            lat: tileBounds.top
+        });
+
+        if (!this.grid.length) {
+            this.grid[0] = [];
+        }
+
+        var tile = this.grid[0][0];
+        if (!tile) {
+            tile = this.addTile(tileBounds, px);
+            
+            this.addTileMonitoringHooks(tile);
+            tile.draw();
+            this.grid[0][0] = tile;
+        } else {
+            tile.moveTo(tileBounds, px);
+        }           
+        
+        //remove all but our single tile
+        this.removeExcessTiles(1,1);
+
+        // store the resolution of the grid
+        this.gridResolution = this.getServerResolution();
+    },
+
+    /** 
+     * Method: calculateGridLayout
+     * Generate parameters for the grid layout.
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bound>|Object} OpenLayers.Bounds or an
+     *     object with a 'left' and 'top' properties.
+     * origin - {<OpenLayers.LonLat>|Object} OpenLayers.LonLat or an
+     *     object with a 'lon' and 'lat' properties.
+     * resolution - {Number}
+     *
+     * Returns:
+     * {Object} Object containing properties tilelon, tilelat, startcol,
+     * startrow
+     */
+    calculateGridLayout: function(bounds, origin, resolution) {
+        var tilelon = resolution * this.tileSize.w;
+        var tilelat = resolution * this.tileSize.h;
+        
+        var offsetlon = bounds.left - origin.lon;
+        var tilecol = Math.floor(offsetlon/tilelon) - this.buffer;
+        
+        var rowSign = this.rowSign;
+
+        var offsetlat = rowSign * (origin.lat - bounds.top + tilelat);  
+        var tilerow = Math[~rowSign ? 'floor' : 'ceil'](offsetlat/tilelat) - this.buffer * rowSign;
+        
+        return { 
+          tilelon: tilelon, tilelat: tilelat,
+          startcol: tilecol, startrow: tilerow
+        };
+
+    },
+    
+    /**
+     * Method: getTileOrigin
+     * Determine the origin for aligning the grid of tiles.  If a <tileOrigin>
+     *     property is supplied, that will be returned.  Otherwise, the origin
+     *     will be derived from the layer's <maxExtent> property.  In this case,
+     *     the tile origin will be the corner of the <maxExtent> given by the 
+     *     <tileOriginCorner> property.
+     *
+     * Returns:
+     * {<OpenLayers.LonLat>} The tile origin.
+     */
+    getTileOrigin: function() {
+        var origin = this.tileOrigin;
+        if (!origin) {
+            var extent = this.getMaxExtent();
+            var edges = ({
+                "tl": ["left", "top"],
+                "tr": ["right", "top"],
+                "bl": ["left", "bottom"],
+                "br": ["right", "bottom"]
+            })[this.tileOriginCorner];
+            origin = new OpenLayers.LonLat(extent[edges[0]], extent[edges[1]]);
+        }
+        return origin;
+    },
+
+    /**
+     * Method: getTileBoundsForGridIndex
+     *
+     * Parameters:
+     * row - {Number} The row of the grid
+     * col - {Number} The column of the grid
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} The bounds for the tile at (row, col)
+     */
+    getTileBoundsForGridIndex: function(row, col) {
+        var origin = this.getTileOrigin();
+        var tileLayout = this.gridLayout;
+        var tilelon = tileLayout.tilelon;
+        var tilelat = tileLayout.tilelat;
+        var startcol = tileLayout.startcol;
+        var startrow = tileLayout.startrow;
+        var rowSign = this.rowSign;
+        return new OpenLayers.Bounds(
+            origin.lon + (startcol + col) * tilelon,
+            origin.lat - (startrow + row * rowSign) * tilelat * rowSign,
+            origin.lon + (startcol + col + 1) * tilelon,
+            origin.lat - (startrow + (row - 1) * rowSign) * tilelat * rowSign
+        );
+    },
+
+    /**
+     * Method: initGriddedTiles
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     */
+    initGriddedTiles:function(bounds) {
+        this.events.triggerEvent("retile");
+
+        // work out mininum number of rows and columns; this is the number of
+        // tiles required to cover the viewport plus at least one for panning
+
+        var viewSize = this.map.getSize();
+        
+        var origin = this.getTileOrigin();
+        var resolution = this.map.getResolution(),
+            serverResolution = this.getServerResolution(),
+            ratio = resolution / serverResolution,
+            tileSize = {
+                w: this.tileSize.w / ratio,
+                h: this.tileSize.h / ratio
+            };
+
+        var minRows = Math.ceil(viewSize.h/tileSize.h) + 
+                      2 * this.buffer + 1;
+        var minCols = Math.ceil(viewSize.w/tileSize.w) +
+                      2 * this.buffer + 1;
+
+        var tileLayout = this.calculateGridLayout(bounds, origin, serverResolution);
+        this.gridLayout = tileLayout;
+        
+        var tilelon = tileLayout.tilelon;
+        var tilelat = tileLayout.tilelat;
+        
+        var layerContainerDivLeft = this.map.layerContainerOriginPx.x;
+        var layerContainerDivTop = this.map.layerContainerOriginPx.y;
+
+        var tileBounds = this.getTileBoundsForGridIndex(0, 0);
+        var startPx = this.map.getViewPortPxFromLonLat(
+            new OpenLayers.LonLat(tileBounds.left, tileBounds.top)
+        );
+        startPx.x = Math.round(startPx.x) - layerContainerDivLeft;
+        startPx.y = Math.round(startPx.y) - layerContainerDivTop;
+
+        var tileData = [], center = this.map.getCenter();
+
+        var rowidx = 0;
+        do {
+            var row = this.grid[rowidx];
+            if (!row) {
+                row = [];
+                this.grid.push(row);
+            }
+            
+            var colidx = 0;
+            do {
+                tileBounds = this.getTileBoundsForGridIndex(rowidx, colidx);
+                var px = startPx.clone();
+                px.x = px.x + colidx * Math.round(tileSize.w);
+                px.y = px.y + rowidx * Math.round(tileSize.h);
+                var tile = row[colidx];
+                if (!tile) {
+                    tile = this.addTile(tileBounds, px);
+                    this.addTileMonitoringHooks(tile);
+                    row.push(tile);
+                } else {
+                    tile.moveTo(tileBounds, px, false);
+                }
+                var tileCenter = tileBounds.getCenterLonLat();
+                tileData.push({
+                    tile: tile,
+                    distance: Math.pow(tileCenter.lon - center.lon, 2) +
+                        Math.pow(tileCenter.lat - center.lat, 2)
+                });
+     
+                colidx += 1;
+            } while ((tileBounds.right <= bounds.right + tilelon * this.buffer)
+                     || colidx < minCols);
+             
+            rowidx += 1;
+        } while((tileBounds.bottom >= bounds.bottom - tilelat * this.buffer)
+                || rowidx < minRows);
+        
+        //shave off exceess rows and colums
+        this.removeExcessTiles(rowidx, colidx);
+
+        var resolution = this.getServerResolution();
+        // store the resolution of the grid
+        this.gridResolution = resolution;
+
+        //now actually draw the tiles
+        tileData.sort(function(a, b) {
+            return a.distance - b.distance; 
+        });
+        for (var i=0, ii=tileData.length; i<ii; ++i) {
+            tileData[i].tile.draw();
+        }
+    },
+
+    /**
+     * Method: getMaxExtent
+     * Get this layer's maximum extent. (Implemented as a getter for
+     *     potential specific implementations in sub-classes.)
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>}
+     */
+    getMaxExtent: function() {
+        return this.maxExtent;
+    },
+    
+    /**
+     * APIMethod: addTile
+     * Create a tile, initialize it, and add it to the layer div. 
+     *
+     * Parameters
+     * bounds - {<OpenLayers.Bounds>}
+     * position - {<OpenLayers.Pixel>}
+     *
+     * Returns:
+     * {<OpenLayers.Tile>} The added OpenLayers.Tile
+     */
+    addTile: function(bounds, position) {
+        var tile = new this.tileClass(
+            this, position, bounds, null, this.tileSize, this.tileOptions
+        );
+        this.events.triggerEvent("addtile", {tile: tile});
+        return tile;
+    },
+    
+    /** 
+     * Method: addTileMonitoringHooks
+     * This function takes a tile as input and adds the appropriate hooks to 
+     *     the tile so that the layer can keep track of the loading tiles.
+     * 
+     * Parameters: 
+     * tile - {<OpenLayers.Tile>}
+     */
+    addTileMonitoringHooks: function(tile) {
+        
+        var replacingCls = 'olTileReplacing';
+
+        tile.onLoadStart = function() {
+            //if that was first tile then trigger a 'loadstart' on the layer
+            if (this.loading === false) {
+                this.loading = true;
+                this.events.triggerEvent("loadstart");
+            }
+            this.events.triggerEvent("tileloadstart", {tile: tile});
+            this.numLoadingTiles++;
+            if (!this.singleTile && this.backBuffer && this.gridResolution === this.backBufferResolution) {
+                OpenLayers.Element.addClass(tile.getTile(), replacingCls);
+            }
+        };
+      
+        tile.onLoadEnd = function(evt) {
+            this.numLoadingTiles--;
+            var aborted = evt.type === 'unload';
+            this.events.triggerEvent("tileloaded", {
+                tile: tile,
+                aborted: aborted
+            });
+            if (!this.singleTile && !aborted && this.backBuffer && this.gridResolution === this.backBufferResolution) {
+                var tileDiv = tile.getTile();
+                if (OpenLayers.Element.getStyle(tileDiv, 'display') === 'none') {
+                    var bufferTile = document.getElementById(tile.id + '_bb');
+                    if (bufferTile) {
+                        bufferTile.parentNode.removeChild(bufferTile);
+                    }
+                }
+                OpenLayers.Element.removeClass(tileDiv, replacingCls);
+            }
+            //if that was the last tile, then trigger a 'loadend' on the layer
+            if (this.numLoadingTiles === 0) {
+                if (this.backBuffer) {
+                    if (this.backBuffer.childNodes.length === 0) {
+                        // no tiles transitioning, remove immediately
+                        this.removeBackBuffer();
+                    } else {
+                        // wait until transition has ended or delay has passed
+                        this._transitionElement = aborted ?
+                            this.div.lastChild : tile.imgDiv;
+                        var transitionendEvents = this.transitionendEvents;
+                        for (var i=transitionendEvents.length-1; i>=0; --i) {
+                            OpenLayers.Event.observe(this._transitionElement,
+                                transitionendEvents[i],
+                                this._removeBackBuffer);
+                        }
+                        // the removal of the back buffer is delayed to prevent
+                        // flash effects due to the animation of tile displaying
+                        this.backBufferTimerId = window.setTimeout(
+                            this._removeBackBuffer, this.removeBackBufferDelay
+                        );
+                    }
+                }
+                this.loading = false;
+                this.events.triggerEvent("loadend");
+            }
+        };
+        
+        tile.onLoadError = function() {
+            this.events.triggerEvent("tileerror", {tile: tile});
+        };
+        
+        tile.events.on({
+            "loadstart": tile.onLoadStart,
+            "loadend": tile.onLoadEnd,
+            "unload": tile.onLoadEnd,
+            "loaderror": tile.onLoadError,
+            scope: this
+        });
+    },
+
+    /** 
+     * Method: removeTileMonitoringHooks
+     * This function takes a tile as input and removes the tile hooks 
+     *     that were added in addTileMonitoringHooks()
+     * 
+     * Parameters: 
+     * tile - {<OpenLayers.Tile>}
+     */
+    removeTileMonitoringHooks: function(tile) {
+        tile.unload();
+        tile.events.un({
+            "loadstart": tile.onLoadStart,
+            "loadend": tile.onLoadEnd,
+            "unload": tile.onLoadEnd,
+            "loaderror": tile.onLoadError,
+            scope: this
+        });
+    },
+    
+    /**
+     * Method: moveGriddedTiles
+     */
+    moveGriddedTiles: function() {
+        var buffer = this.buffer + 1;
+        while(true) {
+            var tlTile = this.grid[0][0];
+            var tlViewPort = {
+                x: tlTile.position.x +
+                    this.map.layerContainerOriginPx.x,
+                y: tlTile.position.y +
+                    this.map.layerContainerOriginPx.y
+            };
+            var ratio = this.getServerResolution() / this.map.getResolution();
+            var tileSize = {
+                w: Math.round(this.tileSize.w * ratio),
+                h: Math.round(this.tileSize.h * ratio)
+            };
+            if (tlViewPort.x > -tileSize.w * (buffer - 1)) {
+                this.shiftColumn(true, tileSize);
+            } else if (tlViewPort.x < -tileSize.w * buffer) {
+                this.shiftColumn(false, tileSize);
+            } else if (tlViewPort.y > -tileSize.h * (buffer - 1)) {
+                this.shiftRow(true, tileSize);
+            } else if (tlViewPort.y < -tileSize.h * buffer) {
+                this.shiftRow(false, tileSize);
+            } else {
+                break;
+            }
+        }
+    },
+
+    /**
+     * Method: shiftRow
+     * Shifty grid work
+     *
+     * Parameters:
+     * prepend - {Boolean} if true, prepend to beginning.
+     *                          if false, then append to end
+     * tileSize - {Object} rendered tile size; object with w and h properties
+     */
+    shiftRow: function(prepend, tileSize) {
+        var grid = this.grid;
+        var rowIndex = prepend ? 0 : (grid.length - 1);
+        var sign = prepend ? -1 : 1;
+        var rowSign = this.rowSign;
+        var tileLayout = this.gridLayout;
+        tileLayout.startrow += sign * rowSign;
+
+        var modelRow = grid[rowIndex];
+        var row = grid[prepend ? 'pop' : 'shift']();
+        for (var i=0, len=row.length; i<len; i++) {
+            var tile = row[i];
+            var position = modelRow[i].position.clone();
+            position.y += tileSize.h * sign;
+            tile.moveTo(this.getTileBoundsForGridIndex(rowIndex, i), position);
+        }
+        grid[prepend ? 'unshift' : 'push'](row);
+    },
+
+    /**
+     * Method: shiftColumn
+     * Shift grid work in the other dimension
+     *
+     * Parameters:
+     * prepend - {Boolean} if true, prepend to beginning.
+     *                          if false, then append to end
+     * tileSize - {Object} rendered tile size; object with w and h properties
+     */
+    shiftColumn: function(prepend, tileSize) {
+        var grid = this.grid;
+        var colIndex = prepend ? 0 : (grid[0].length - 1);
+        var sign = prepend ? -1 : 1;
+        var tileLayout = this.gridLayout;
+        tileLayout.startcol += sign;
+
+        for (var i=0, len=grid.length; i<len; i++) {
+            var row = grid[i];
+            var position = row[colIndex].position.clone();
+            var tile = row[prepend ? 'pop' : 'shift']();            
+            position.x += tileSize.w * sign;
+            tile.moveTo(this.getTileBoundsForGridIndex(i, colIndex), position);
+            row[prepend ? 'unshift' : 'push'](tile);
+        }
+    },
+
+    /**
+     * Method: removeExcessTiles
+     * When the size of the map or the buffer changes, we may need to
+     *     remove some excess rows and columns.
+     * 
+     * Parameters:
+     * rows - {Integer} Maximum number of rows we want our grid to have.
+     * columns - {Integer} Maximum number of columns we want our grid to have.
+     */
+    removeExcessTiles: function(rows, columns) {
+        var i, l;
+        
+        // remove extra rows
+        while (this.grid.length > rows) {
+            var row = this.grid.pop();
+            for (i=0, l=row.length; i<l; i++) {
+                var tile = row[i];
+                this.destroyTile(tile);
+            }
+        }
+        
+        // remove extra columns
+        for (i=0, l=this.grid.length; i<l; i++) {
+            while (this.grid[i].length > columns) {
+                var row = this.grid[i];
+                var tile = row.pop();
+                this.destroyTile(tile);
+            }
+        }
+    },
+
+    /**
+     * Method: onMapResize
+     * For singleTile layers, this will set a new tile size according to the
+     * dimensions of the map pane.
+     */
+    onMapResize: function() {
+        if (this.singleTile) {
+            this.clearGrid();
+            this.setTileSize();
+        }
+    },
+    
+    /**
+     * APIMethod: getTileBounds
+     * Returns The tile bounds for a layer given a pixel location.
+     *
+     * Parameters:
+     * viewPortPx - {<OpenLayers.Pixel>} The location in the viewport.
+     *
+     * Returns:
+     * {<OpenLayers.Bounds>} Bounds of the tile at the given pixel location.
+     */
+    getTileBounds: function(viewPortPx) {
+        var maxExtent = this.maxExtent;
+        var resolution = this.getResolution();
+        var tileMapWidth = resolution * this.tileSize.w;
+        var tileMapHeight = resolution * this.tileSize.h;
+        var mapPoint = this.getLonLatFromViewPortPx(viewPortPx);
+        var tileLeft = maxExtent.left + (tileMapWidth *
+                                         Math.floor((mapPoint.lon -
+                                                     maxExtent.left) /
+                                                    tileMapWidth));
+        var tileBottom = maxExtent.bottom + (tileMapHeight *
+                                             Math.floor((mapPoint.lat -
+                                                         maxExtent.bottom) /
+                                                        tileMapHeight));
+        return new OpenLayers.Bounds(tileLeft, tileBottom,
+                                     tileLeft + tileMapWidth,
+                                     tileBottom + tileMapHeight);
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.Grid"
+});
+/* ======================================================================
+    OpenLayers/Layer/XYZ.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Layer/Grid.js
+ */
+
+/** 
+ * Class: OpenLayers.Layer.XYZ
+ * The XYZ class is designed to make it easier for people who have tiles
+ * arranged by a standard XYZ grid. 
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Layer.Grid>
+ */
+OpenLayers.Layer.XYZ = OpenLayers.Class(OpenLayers.Layer.Grid, {
+    
+    /**
+     * APIProperty: isBaseLayer
+     * Default is true, as this is designed to be a base tile source. 
+     */
+    isBaseLayer: true,
+    
+    /**
+     * APIProperty: sphericalMercator
+     * Whether the tile extents should be set to the defaults for 
+     *    spherical mercator. Useful for things like OpenStreetMap.
+     *    Default is false, except for the OSM subclass.
+     */
+    sphericalMercator: false,
+
+    /**
+     * APIProperty: zoomOffset
+     * {Number} If your cache has more zoom levels than you want to provide
+     *     access to with this layer, supply a zoomOffset.  This zoom offset
+     *     is added to the current map zoom level to determine the level
+     *     for a requested tile.  For example, if you supply a zoomOffset
+     *     of 3, when the map is at the zoom 0, tiles will be requested from
+     *     level 3 of your cache.  Default is 0 (assumes cache level and map
+     *     zoom are equivalent).  Using <zoomOffset> is an alternative to
+     *     setting <serverResolutions> if you only want to expose a subset
+     *     of the server resolutions.
+     */
+    zoomOffset: 0,
+    
+    /**
+     * APIProperty: serverResolutions
+     * {Array} A list of all resolutions available on the server.  Only set this
+     *     property if the map resolutions differ from the server. This
+     *     property serves two purposes. (a) <serverResolutions> can include
+     *     resolutions that the server supports and that you don't want to
+     *     provide with this layer; you can also look at <zoomOffset>, which is
+     *     an alternative to <serverResolutions> for that specific purpose.
+     *     (b) The map can work with resolutions that aren't supported by
+     *     the server, i.e. that aren't in <serverResolutions>. When the
+     *     map is displayed in such a resolution data for the closest
+     *     server-supported resolution is loaded and the layer div is
+     *     stretched as necessary.
+     */
+    serverResolutions: null,
+
+    /**
+     * Constructor: OpenLayers.Layer.XYZ
+     *
+     * Parameters:
+     * name - {String}
+     * url - {String}
+     * options - {Object} Hashtable of extra options to tag onto the layer
+     */
+    initialize: function(name, url, options) {
+        if (options && options.sphericalMercator || this.sphericalMercator) {
+            options = OpenLayers.Util.extend({
+                projection: "EPSG:900913",
+                numZoomLevels: 19
+            }, options);
+        }
+        OpenLayers.Layer.Grid.prototype.initialize.apply(this, [
+            name || this.name, url || this.url, {}, options
+        ]);
+    },
+    
+    /**
+     * APIMethod: clone
+     * Create a clone of this layer
+     *
+     * Parameters:
+     * obj - {Object} Is this ever used?
+     * 
+     * Returns:
+     * {<OpenLayers.Layer.XYZ>} An exact clone of this OpenLayers.Layer.XYZ
+     */
+    clone: function (obj) {
+        
+        if (obj == null) {
+            obj = new OpenLayers.Layer.XYZ(this.name,
+                                            this.url,
+                                            this.getOptions());
+        }
+
+        //get all additions from superclasses
+        obj = OpenLayers.Layer.Grid.prototype.clone.apply(this, [obj]);
+
+        return obj;
+    },    
+
+    /**
+     * Method: getURL
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     *
+     * Returns:
+     * {String} A string with the layer's url and parameters and also the
+     *          passed-in bounds and appropriate tile size specified as
+     *          parameters
+     */
+    getURL: function (bounds) {
+        var xyz = this.getXYZ(bounds);
+        var url = this.url;
+        if (OpenLayers.Util.isArray(url)) {
+            var s = '' + xyz.x + xyz.y + xyz.z;
+            url = this.selectUrl(s, url);
+        }
+        
+        return OpenLayers.String.format(url, xyz);
+    },
+    
+    /**
+     * Method: getXYZ
+     * Calculates x, y and z for the given bounds.
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>}
+     *
+     * Returns:
+     * {Object} - an object with x, y and z properties.
+     */
+    getXYZ: function(bounds) {
+        var res = this.getServerResolution();
+        var x = Math.round((bounds.left - this.maxExtent.left) /
+            (res * this.tileSize.w));
+        var y = Math.round((this.maxExtent.top - bounds.top) /
+            (res * this.tileSize.h));
+        var z = this.getServerZoom();
+
+        if (this.wrapDateLine) {
+            var limit = Math.pow(2, z);
+            x = ((x % limit) + limit) % limit;
+        }
+
+        return {'x': x, 'y': y, 'z': z};
+    },
+    
+    /* APIMethod: setMap
+     * When the layer is added to a map, then we can fetch our origin 
+     *    (if we don't have one.) 
+     * 
+     * Parameters:
+     * map - {<OpenLayers.Map>}
+     */
+    setMap: function(map) {
+        OpenLayers.Layer.Grid.prototype.setMap.apply(this, arguments);
+        if (!this.tileOrigin) { 
+            this.tileOrigin = new OpenLayers.LonLat(this.maxExtent.left,
+                                                this.maxExtent.bottom);
+        }                                       
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.XYZ"
+});
+/* ======================================================================
+    OpenLayers/Layer/OSM.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Layer/XYZ.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.OSM
+ * This layer allows accessing OpenStreetMap tiles. By default the OpenStreetMap
+ *    hosted tile.openstreetmap.org Mapnik tileset is used. If you wish to use
+ *    a different layer instead, you need to provide a different
+ *    URL to the constructor. Here's an example for using OpenCycleMap:
+ * 
+ * (code)
+ *     new OpenLayers.Layer.OSM("OpenCycleMap", 
+ *       ["http://a.tile.opencyclemap.org/cycle/${z}/${x}/${y}.png",
+ *        "http://b.tile.opencyclemap.org/cycle/${z}/${x}/${y}.png",
+ *        "http://c.tile.opencyclemap.org/cycle/${z}/${x}/${y}.png"]); 
+ * (end)
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer.XYZ>
+ */
+OpenLayers.Layer.OSM = OpenLayers.Class(OpenLayers.Layer.XYZ, {
+
+    /**
+     * APIProperty: name
+     * {String} The layer name. Defaults to "OpenStreetMap" if the first
+     * argument to the constructor is null or undefined.
+     */
+    name: "OpenStreetMap",
+
+    /**
+     * APIProperty: url
+     * {String} The tileset URL scheme. Defaults to
+     * : http://[a|b|c].tile.openstreetmap.org/${z}/${x}/${y}.png
+     * (the official OSM tileset) if the second argument to the constructor
+     * is null or undefined. To use another tileset you can have something
+     * like this:
+     * (code)
+     *     new OpenLayers.Layer.OSM("OpenCycleMap", 
+     *       ["http://a.tile.opencyclemap.org/cycle/${z}/${x}/${y}.png",
+     *        "http://b.tile.opencyclemap.org/cycle/${z}/${x}/${y}.png",
+     *        "http://c.tile.opencyclemap.org/cycle/${z}/${x}/${y}.png"]); 
+     * (end)
+     */
+    url: [
+        'http://a.tile.openstreetmap.org/${z}/${x}/${y}.png',
+        'http://b.tile.openstreetmap.org/${z}/${x}/${y}.png',
+        'http://c.tile.openstreetmap.org/${z}/${x}/${y}.png'
+    ],
+
+    /**
+     * Property: attribution
+     * {String} The layer attribution.
+     */
+    attribution: "&copy; <a href='http://www.openstreetmap.org/copyright'>OpenStreetMap</a> contributors",
+
+    /**
+     * Property: sphericalMercator
+     * {Boolean}
+     */
+    sphericalMercator: true,
+
+    /**
+     * Property: wrapDateLine
+     * {Boolean}
+     */
+    wrapDateLine: true,
+
+    /** APIProperty: tileOptions
+     *  {Object} optional configuration options for <OpenLayers.Tile> instances
+     *  created by this Layer. Default is
+     *
+     *  (code)
+     *  {crossOriginKeyword: 'anonymous'}
+     *  (end)
+     *
+     *  When using OSM tilesets other than the default ones, it may be
+     *  necessary to set this to
+     *
+     *  (code)
+     *  {crossOriginKeyword: null}
+     *  (end)
+     *
+     *  if the server does not send Access-Control-Allow-Origin headers.
+     */
+    tileOptions: null,
+
+    /**
+     * Constructor: OpenLayers.Layer.OSM
+     *
+     * Parameters:
+     * name - {String} The layer name.
+     * url - {String} The tileset URL scheme.
+     * options - {Object} Configuration options for the layer. Any inherited
+     *     layer option can be set in this object (e.g.
+     *     <OpenLayers.Layer.Grid.buffer>).
+     */
+    initialize: function(name, url, options) {
+        OpenLayers.Layer.XYZ.prototype.initialize.apply(this, arguments);
+        this.tileOptions = OpenLayers.Util.extend({
+            crossOriginKeyword: 'anonymous'
+        }, this.options && this.options.tileOptions);
+    },
+
+    /**
+     * Method: clone
+     */
+    clone: function(obj) {
+        if (obj == null) {
+            obj = new OpenLayers.Layer.OSM(
+                this.name, this.url, this.getOptions());
+        }
+        obj = OpenLayers.Layer.XYZ.prototype.clone.apply(this, [obj]);
+        return obj;
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.OSM"
+});
+/* ======================================================================
+    OpenLayers/Renderer.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ */
+
+/**
+ * Class: OpenLayers.Renderer 
+ * This is the base class for all renderers.
+ *
+ * This is based on a merger code written by Paul Spencer and Bertil Chapuis.
+ * It is largely composed of virtual functions that are to be implemented
+ * in technology-specific subclasses, but there is some generic code too.
+ * 
+ * The functions that *are* implemented here merely deal with the maintenance
+ *  of the size and extent variables, as well as the cached 'resolution' 
+ *  value. 
+ * 
+ * A note to the user that all subclasses should use getResolution() instead
+ *  of directly accessing this.resolution in order to correctly use the 
+ *  cacheing system.
+ *
+ */
+OpenLayers.Renderer = OpenLayers.Class({
+
+    /** 
+     * Property: container
+     * {DOMElement} 
+     */
+    container: null,
+    
+    /**
+     * Property: root
+     * {DOMElement}
+     */
+    root: null,
+
+    /** 
+     * Property: extent
+     * {<OpenLayers.Bounds>}
+     */
+    extent: null,
+
+    /**
+     * Property: locked
+     * {Boolean} If the renderer is currently in a state where many things
+     *     are changing, the 'locked' property is set to true. This means 
+     *     that renderers can expect at least one more drawFeature event to be
+     *     called with the 'locked' property set to 'true': In some renderers,
+     *     this might make sense to use as a 'only update local information'
+     *     flag. 
+     */  
+    locked: false,
+    
+    /** 
+     * Property: size
+     * {<OpenLayers.Size>} 
+     */
+    size: null,
+    
+    /**
+     * Property: resolution
+     * {Float} cache of current map resolution
+     */
+    resolution: null,
+    
+    /**
+     * Property: map  
+     * {<OpenLayers.Map>} Reference to the map -- this is set in Vector's setMap()
+     */
+    map: null,
+    
+    /**
+     * Property: featureDx
+     * {Number} Feature offset in x direction. Will be calculated for and
+     * applied to the current feature while rendering (see
+     * <calculateFeatureDx>).
+     */
+    featureDx: 0,
+    
+    /**
+     * Constructor: OpenLayers.Renderer 
+     *
+     * Parameters:
+     * containerID - {<String>} 
+     * options - {Object} options for this renderer. See sublcasses for
+     *     supported options.
+     */
+    initialize: function(containerID, options) {
+        this.container = OpenLayers.Util.getElement(containerID);
+        OpenLayers.Util.extend(this, options);
+    },
+    
+    /**
+     * APIMethod: destroy
+     */
+    destroy: function() {
+        this.container = null;
+        this.extent = null;
+        this.size =  null;
+        this.resolution = null;
+        this.map = null;
+    },
+
+    /**
+     * APIMethod: supported
+     * This should be overridden by specific subclasses
+     * 
+     * Returns:
+     * {Boolean} Whether or not the browser supports the renderer class
+     */
+    supported: function() {
+        return false;
+    },    
+    
+    /**
+     * Method: setExtent
+     * Set the visible part of the layer.
+     *
+     * Resolution has probably changed, so we nullify the resolution 
+     * cache (this.resolution) -- this way it will be re-computed when 
+     * next it is needed.
+     * We nullify the resolution cache (this.resolution) if resolutionChanged
+     * is set to true - this way it will be re-computed on the next
+     * getResolution() request.
+     *
+     * Parameters:
+     * extent - {<OpenLayers.Bounds>}
+     * resolutionChanged - {Boolean}
+     *
+     * Returns:
+     * {Boolean} true to notify the layer that the new extent does not exceed
+     *     the coordinate range, and the features will not need to be redrawn.
+     *     False otherwise.
+     */
+    setExtent: function(extent, resolutionChanged) {
+        this.extent = extent.clone();
+        if (this.map.baseLayer && this.map.baseLayer.wrapDateLine) {
+            var ratio = extent.getWidth() / this.map.getExtent().getWidth(),
+                extent = extent.scale(1 / ratio);
+            this.extent = extent.wrapDateLine(this.map.getMaxExtent()).scale(ratio);
+        }
+        if (resolutionChanged) {
+            this.resolution = null;
+        }
+        return true;
+    },
+    
+    /**
+     * Method: setSize
+     * Sets the size of the drawing surface.
+     * 
+     * Resolution has probably changed, so we nullify the resolution 
+     * cache (this.resolution) -- this way it will be re-computed when 
+     * next it is needed.
+     *
+     * Parameters:
+     * size - {<OpenLayers.Size>} 
+     */
+    setSize: function(size) {
+        this.size = size.clone();
+        this.resolution = null;
+    },
+    
+    /** 
+     * Method: getResolution
+     * Uses cached copy of resolution if available to minimize computing
+     * 
+     * Returns:
+     * {Float} The current map's resolution
+     */
+    getResolution: function() {
+        this.resolution = this.resolution || this.map.getResolution();
+        return this.resolution;
+    },
+    
+    /**
+     * Method: drawFeature
+     * Draw the feature.  The optional style argument can be used
+     * to override the feature's own style.  This method should only
+     * be called from layer.drawFeature().
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} 
+     * style - {<Object>}
+     * 
+     * Returns:
+     * {Boolean} true if the feature has been drawn completely, false if not,
+     *     undefined if the feature had no geometry
+     */
+    drawFeature: function(feature, style) {
+        if(style == null) {
+            style = feature.style;
+        }
+        if (feature.geometry) {
+            var bounds = feature.geometry.getBounds();
+            if(bounds) {
+                var worldBounds;
+                if (this.map.baseLayer && this.map.baseLayer.wrapDateLine) {
+                    worldBounds = this.map.getMaxExtent();
+                }
+                if (!bounds.intersectsBounds(this.extent, {worldBounds: worldBounds})) {
+                    style = {display: "none"};
+                } else {
+                    this.calculateFeatureDx(bounds, worldBounds);
+                }
+                var rendered = this.drawGeometry(feature.geometry, style, feature.id);
+                if(style.display != "none" && style.label && rendered !== false) {
+
+                    var location = feature.geometry.getCentroid(); 
+                    if(style.labelXOffset || style.labelYOffset) {
+                        var xOffset = isNaN(style.labelXOffset) ? 0 : style.labelXOffset;
+                        var yOffset = isNaN(style.labelYOffset) ? 0 : style.labelYOffset;
+                        var res = this.getResolution();
+                        location.move(xOffset*res, yOffset*res);
+                    }
+                    this.drawText(feature.id, style, location);
+                } else {
+                    this.removeText(feature.id);
+                }
+                return rendered;
+            }
+        }
+    },
+
+    /**
+     * Method: calculateFeatureDx
+     * {Number} Calculates the feature offset in x direction. Looking at the
+     * center of the feature bounds and the renderer extent, we calculate how
+     * many world widths the two are away from each other. This distance is
+     * used to shift the feature as close as possible to the center of the
+     * current enderer extent, which ensures that the feature is visible in the
+     * current viewport.
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>} Bounds of the feature
+     * worldBounds - {<OpenLayers.Bounds>} Bounds of the world
+     */
+    calculateFeatureDx: function(bounds, worldBounds) {
+        this.featureDx = 0;
+        if (worldBounds) {
+            var worldWidth = worldBounds.getWidth(),
+                rendererCenterX = (this.extent.left + this.extent.right) / 2,
+                featureCenterX = (bounds.left + bounds.right) / 2,
+                worldsAway = Math.round((featureCenterX - rendererCenterX) / worldWidth);
+            this.featureDx = worldsAway * worldWidth;
+        }
+    },
+
+    /** 
+     * Method: drawGeometry
+     * 
+     * Draw a geometry.  This should only be called from the renderer itself.
+     * Use layer.drawFeature() from outside the renderer.
+     * virtual function
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} 
+     * style - {Object} 
+     * featureId - {<String>} 
+     */
+    drawGeometry: function(geometry, style, featureId) {},
+        
+    /**
+     * Method: drawText
+     * Function for drawing text labels.
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * featureId - {String}
+     * style -
+     * location - {<OpenLayers.Geometry.Point>}
+     */
+    drawText: function(featureId, style, location) {},
+
+    /**
+     * Method: removeText
+     * Function for removing text labels.
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * featureId - {String}
+     */
+    removeText: function(featureId) {},
+    
+    /**
+     * Method: clear
+     * Clear all vectors from the renderer.
+     * virtual function.
+     */    
+    clear: function() {},
+
+    /**
+     * Method: getFeatureIdFromEvent
+     * Returns a feature id from an event on the renderer.  
+     * How this happens is specific to the renderer.  This should be
+     * called from layer.getFeatureFromEvent().
+     * Virtual function.
+     * 
+     * Parameters:
+     * evt - {<OpenLayers.Event>} 
+     *
+     * Returns:
+     * {String} A feature id or undefined.
+     */
+    getFeatureIdFromEvent: function(evt) {},
+    
+    /**
+     * Method: eraseFeatures 
+     * This is called by the layer to erase features
+     * 
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>)} 
+     */
+    eraseFeatures: function(features) {
+        if(!(OpenLayers.Util.isArray(features))) {
+            features = [features];
+        }
+        for(var i=0, len=features.length; i<len; ++i) {
+            var feature = features[i];
+            this.eraseGeometry(feature.geometry, feature.id);
+            this.removeText(feature.id);
+        }
+    },
+    
+    /**
+     * Method: eraseGeometry
+     * Remove a geometry from the renderer (by id).
+     * virtual function.
+     * 
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} 
+     * featureId - {String}
+     */
+    eraseGeometry: function(geometry, featureId) {},
+    
+    /**
+     * Method: moveRoot
+     * moves this renderer's root to a (different) renderer.
+     * To be implemented by subclasses that require a common renderer root for
+     * feature selection.
+     * 
+     * Parameters:
+     * renderer - {<OpenLayers.Renderer>} target renderer for the moved root
+     */
+    moveRoot: function(renderer) {},
+
+    /**
+     * Method: getRenderLayerId
+     * Gets the layer that this renderer's output appears on. If moveRoot was
+     * used, this will be different from the id of the layer containing the
+     * features rendered by this renderer.
+     * 
+     * Returns:
+     * {String} the id of the output layer.
+     */
+    getRenderLayerId: function() {
+        return this.container.id;
+    },
+    
+    /**
+     * Method: applyDefaultSymbolizer
+     * 
+     * Parameters:
+     * symbolizer - {Object}
+     * 
+     * Returns:
+     * {Object}
+     */
+    applyDefaultSymbolizer: function(symbolizer) {
+        var result = OpenLayers.Util.extend({},
+            OpenLayers.Renderer.defaultSymbolizer);
+        if(symbolizer.stroke === false) {
+            delete result.strokeWidth;
+            delete result.strokeColor;
+        }
+        if(symbolizer.fill === false) {
+            delete result.fillColor;
+        }
+        OpenLayers.Util.extend(result, symbolizer);
+        return result;
+    },
+
+    CLASS_NAME: "OpenLayers.Renderer"
+});
+
+/**
+ * Constant: OpenLayers.Renderer.defaultSymbolizer
+ * {Object} Properties from this symbolizer will be applied to symbolizers
+ *     with missing properties. This can also be used to set a global
+ *     symbolizer default in OpenLayers. To be SLD 1.x compliant, add the
+ *     following code before rendering any vector features:
+ * (code)
+ * OpenLayers.Renderer.defaultSymbolizer = {
+ *     fillColor: "#808080",
+ *     fillOpacity: 1,
+ *     strokeColor: "#000000",
+ *     strokeOpacity: 1,
+ *     strokeWidth: 1,
+ *     pointRadius: 3,
+ *     graphicName: "square"
+ * };
+ * (end)
+ */
+OpenLayers.Renderer.defaultSymbolizer = {
+    fillColor: "#000000",
+    strokeColor: "#000000",
+    strokeWidth: 2,
+    fillOpacity: 1,
+    strokeOpacity: 1,
+    pointRadius: 0,
+    labelAlign: 'cm'
+};
+    
+
+
+/**
+ * Constant: OpenLayers.Renderer.symbol
+ * Coordinate arrays for well known (named) symbols.
+ */
+OpenLayers.Renderer.symbol = {
+    "star": [350,75, 379,161, 469,161, 397,215, 423,301, 350,250, 277,301,
+            303,215, 231,161, 321,161, 350,75],
+    "cross": [4,0, 6,0, 6,4, 10,4, 10,6, 6,6, 6,10, 4,10, 4,6, 0,6, 0,4, 4,4,
+            4,0],
+    "x": [0,0, 25,0, 50,35, 75,0, 100,0, 65,50, 100,100, 75,100, 50,65, 25,100, 0,100, 35,50, 0,0],
+    "square": [0,0, 0,1, 1,1, 1,0, 0,0],
+    "triangle": [0,10, 10,10, 5,0, 0,10]
+};
+/* ======================================================================
+    OpenLayers/Renderer/Canvas.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Renderer.js
+ */
+
+/**
+ * Class: OpenLayers.Renderer.Canvas 
+ * A renderer based on the 2D 'canvas' drawing element.
+ * 
+ * Inherits:
+ *  - <OpenLayers.Renderer>
+ */
+OpenLayers.Renderer.Canvas = OpenLayers.Class(OpenLayers.Renderer, {
+    
+    /**
+     * APIProperty: hitDetection
+     * {Boolean} Allow for hit detection of features.  Default is true.
+     */
+    hitDetection: true,
+    
+    /**
+     * Property: hitOverflow
+     * {Number} The method for converting feature identifiers to color values
+     *     supports 16777215 sequential values.  Two features cannot be 
+     *     predictably detected if their identifiers differ by more than this
+     *     value.  The hitOverflow allows for bigger numbers (but the 
+     *     difference in values is still limited).
+     */
+    hitOverflow: 0,
+
+    /**
+     * Property: canvas
+     * {Canvas} The canvas context object.
+     */
+    canvas: null, 
+    
+    /**
+     * Property: features
+     * {Object} Internal object of feature/style pairs for use in redrawing the layer.
+     */
+    features: null,
+    
+    /**
+     * Property: pendingRedraw
+     * {Boolean} The renderer needs a redraw call to render features added while
+     *     the renderer was locked.
+     */
+    pendingRedraw: false,
+    
+    /**
+     * Property: cachedSymbolBounds
+     * {Object} Internal cache of calculated symbol extents.
+     */
+    cachedSymbolBounds: {},
+    
+    /**
+     * Constructor: OpenLayers.Renderer.Canvas
+     *
+     * Parameters:
+     * containerID - {<String>}
+     * options - {Object} Optional properties to be set on the renderer.
+     */
+    initialize: function(containerID, options) {
+        OpenLayers.Renderer.prototype.initialize.apply(this, arguments);
+        this.root = document.createElement("canvas");
+        this.container.appendChild(this.root);
+        this.canvas = this.root.getContext("2d");
+        this.features = {};
+        if (this.hitDetection) {
+            this.hitCanvas = document.createElement("canvas");
+            this.hitContext = this.hitCanvas.getContext("2d");
+        }
+    },
+    
+    /**
+     * Method: setExtent
+     * Set the visible part of the layer.
+     *
+     * Parameters:
+     * extent - {<OpenLayers.Bounds>}
+     * resolutionChanged - {Boolean}
+     *
+     * Returns:
+     * {Boolean} true to notify the layer that the new extent does not exceed
+     *     the coordinate range, and the features will not need to be redrawn.
+     *     False otherwise.
+     */
+    setExtent: function() {
+        OpenLayers.Renderer.prototype.setExtent.apply(this, arguments);
+        // always redraw features
+        return false;
+    },
+    
+    /** 
+     * Method: eraseGeometry
+     * Erase a geometry from the renderer. Because the Canvas renderer has
+     *     'memory' of the features that it has drawn, we have to remove the
+     *     feature so it doesn't redraw.   
+     * 
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>}
+     * featureId - {String}
+     */
+    eraseGeometry: function(geometry, featureId) {
+        this.eraseFeatures(this.features[featureId][0]);
+    },
+
+    /**
+     * APIMethod: supported
+     * 
+     * Returns:
+     * {Boolean} Whether or not the browser supports the renderer class
+     */
+    supported: function() {
+        return OpenLayers.CANVAS_SUPPORTED;
+    },    
+    
+    /**
+     * Method: setSize
+     * Sets the size of the drawing surface.
+     *
+     * Once the size is updated, redraw the canvas.
+     *
+     * Parameters:
+     * size - {<OpenLayers.Size>} 
+     */
+    setSize: function(size) {
+        this.size = size.clone();
+        var root = this.root;
+        root.style.width = size.w + "px";
+        root.style.height = size.h + "px";
+        root.width = size.w;
+        root.height = size.h;
+        this.resolution = null;
+        if (this.hitDetection) {
+            var hitCanvas = this.hitCanvas;
+            hitCanvas.style.width = size.w + "px";
+            hitCanvas.style.height = size.h + "px";
+            hitCanvas.width = size.w;
+            hitCanvas.height = size.h;
+        }
+    },
+    
+    /**
+     * Method: drawFeature
+     * Draw the feature. Stores the feature in the features list,
+     * then redraws the layer. 
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} 
+     * style - {<Object>} 
+     *
+     * Returns:
+     * {Boolean} The feature has been drawn completely.  If the feature has no
+     *     geometry, undefined will be returned.  If the feature is not rendered
+     *     for other reasons, false will be returned.
+     */
+    drawFeature: function(feature, style) {
+        var rendered;
+        if (feature.geometry) {
+            style = this.applyDefaultSymbolizer(style || feature.style);
+            // don't render if display none or feature outside extent
+            var bounds = feature.geometry.getBounds();
+
+            var worldBounds;
+            if (this.map.baseLayer && this.map.baseLayer.wrapDateLine) {
+                worldBounds = this.map.getMaxExtent();
+            }
+
+            var intersects = bounds && bounds.intersectsBounds(this.extent, {worldBounds: worldBounds});
+
+            rendered = (style.display !== "none") && !!bounds && intersects;
+            if (rendered) {
+                // keep track of what we have rendered for redraw
+                this.features[feature.id] = [feature, style];
+            }
+            else {
+                // remove from features tracked for redraw
+                delete(this.features[feature.id]);
+            }
+            this.pendingRedraw = true;
+        }
+        if (this.pendingRedraw && !this.locked) {
+            this.redraw();
+            this.pendingRedraw = false;
+        }
+        return rendered;
+    },
+
+    /** 
+     * Method: drawGeometry
+     * Used when looping (in redraw) over the features; draws
+     * the canvas. 
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} 
+     * style - {Object} 
+     */
+    drawGeometry: function(geometry, style, featureId) {
+        var className = geometry.CLASS_NAME;
+        if ((className == "OpenLayers.Geometry.Collection") ||
+            (className == "OpenLayers.Geometry.MultiPoint") ||
+            (className == "OpenLayers.Geometry.MultiLineString") ||
+            (className == "OpenLayers.Geometry.MultiPolygon")) {
+            for (var i = 0; i < geometry.components.length; i++) {
+                this.drawGeometry(geometry.components[i], style, featureId);
+            }
+            return;
+        }
+        switch (geometry.CLASS_NAME) {
+            case "OpenLayers.Geometry.Point":
+                this.drawPoint(geometry, style, featureId);
+                break;
+            case "OpenLayers.Geometry.LineString":
+                this.drawLineString(geometry, style, featureId);
+                break;
+            case "OpenLayers.Geometry.LinearRing":
+                this.drawLinearRing(geometry, style, featureId);
+                break;
+            case "OpenLayers.Geometry.Polygon":
+                this.drawPolygon(geometry, style, featureId);
+                break;
+            default:
+                break;
+        }
+    },
+
+    /**
+     * Method: drawExternalGraphic
+     * Called to draw External graphics. 
+     * 
+     * Parameters: 
+     * geometry - {<OpenLayers.Geometry>}
+     * style    - {Object}
+     * featureId - {String}
+     */ 
+    drawExternalGraphic: function(geometry, style, featureId) {
+        var img = new Image();
+
+        var title = style.title || style.graphicTitle;        
+        if (title) {
+            img.title = title;           
+        }
+
+        var width = style.graphicWidth || style.graphicHeight;
+        var height = style.graphicHeight || style.graphicWidth;
+        width = width ? width : style.pointRadius * 2;
+        height = height ? height : style.pointRadius * 2;
+        var xOffset = (style.graphicXOffset != undefined) ?
+           style.graphicXOffset : -(0.5 * width);
+        var yOffset = (style.graphicYOffset != undefined) ?
+           style.graphicYOffset : -(0.5 * height);
+
+        var opacity = style.graphicOpacity || style.fillOpacity;
+        
+        var onLoad = function() {
+            if(!this.features[featureId]) {
+                return;
+            }
+            var pt = this.getLocalXY(geometry);
+            var p0 = pt[0];
+            var p1 = pt[1];
+            if(!isNaN(p0) && !isNaN(p1)) {
+                var x = (p0 + xOffset) | 0;
+                var y = (p1 + yOffset) | 0;
+                var canvas = this.canvas;
+                canvas.globalAlpha = opacity;
+                var factor = OpenLayers.Renderer.Canvas.drawImageScaleFactor ||
+                    (OpenLayers.Renderer.Canvas.drawImageScaleFactor =
+                        /android 2.1/.test(navigator.userAgent.toLowerCase()) ?
+                            // 320 is the screen width of the G1 phone, for
+                            // which drawImage works out of the box.
+                            320 / window.screen.width : 1
+                    );
+                canvas.drawImage(
+                    img, x*factor, y*factor, width*factor, height*factor
+                );
+                if (this.hitDetection) {
+                    this.setHitContextStyle("fill", featureId);
+                    this.hitContext.fillRect(x, y, width, height);
+                }
+            }
+        };
+
+        img.onload = OpenLayers.Function.bind(onLoad, this);
+        img.src = style.externalGraphic;
+    },
+
+    /**
+     * Method: drawNamedSymbol
+     * Called to draw Well Known Graphic Symbol Name. 
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * geometry - {<OpenLayers.Geometry>}
+     * style    - {Object}
+     * featureId - {String}
+     */ 
+    drawNamedSymbol: function(geometry, style, featureId) {
+        var x, y, cx, cy, i, symbolBounds, scaling, angle;
+        var unscaledStrokeWidth;
+        var deg2rad = Math.PI / 180.0;
+        
+        var symbol = OpenLayers.Renderer.symbol[style.graphicName];
+         
+        if (!symbol) {
+            throw new Error(style.graphicName + ' is not a valid symbol name');
+        }
+        
+        if (!symbol.length || symbol.length < 2) return;
+        
+        var pt = this.getLocalXY(geometry);
+        var p0 = pt[0];
+        var p1 = pt[1];
+       
+        if (isNaN(p0) || isNaN(p1)) return;
+        
+        // Use rounded line caps
+        this.canvas.lineCap = "round";
+        this.canvas.lineJoin = "round";
+        
+        if (this.hitDetection) {
+            this.hitContext.lineCap = "round";
+            this.hitContext.lineJoin = "round";
+        }
+        
+        // Scale and rotate symbols, using precalculated bounds whenever possible.
+        if (style.graphicName in this.cachedSymbolBounds) {
+            symbolBounds = this.cachedSymbolBounds[style.graphicName];
+        } else {
+            symbolBounds = new OpenLayers.Bounds();
+            for(i = 0; i < symbol.length; i+=2) {
+                symbolBounds.extend(new OpenLayers.LonLat(symbol[i], symbol[i+1]));
+            }
+            this.cachedSymbolBounds[style.graphicName] = symbolBounds;
+        }
+        
+        // Push symbol scaling, translation and rotation onto the transformation stack in reverse order.
+        // Don't forget to apply all canvas transformations to the hitContext canvas as well(!)
+        this.canvas.save();
+        if (this.hitDetection) { this.hitContext.save(); }
+        
+        // Step 3: place symbol at the desired location
+        this.canvas.translate(p0,p1);
+        if (this.hitDetection) { this.hitContext.translate(p0,p1); }
+        
+        // Step 2a. rotate the symbol if necessary
+        angle = deg2rad * style.rotation; // will be NaN when style.rotation is undefined.
+        if (!isNaN(angle)) {
+            this.canvas.rotate(angle);
+            if (this.hitDetection) { this.hitContext.rotate(angle); }
+        }
+                
+        // // Step 2: scale symbol such that pointRadius equals half the maximum symbol dimension.
+        scaling = 2.0 * style.pointRadius / Math.max(symbolBounds.getWidth(), symbolBounds.getHeight());
+        this.canvas.scale(scaling,scaling);
+        if (this.hitDetection) { this.hitContext.scale(scaling,scaling); }
+        
+        // Step 1: center the symbol at the origin        
+        cx = symbolBounds.getCenterLonLat().lon;
+        cy = symbolBounds.getCenterLonLat().lat;
+        this.canvas.translate(-cx,-cy);
+        if (this.hitDetection) { this.hitContext.translate(-cx,-cy); }        
+
+        // Don't forget to scale stroke widths, because they are affected by canvas scale transformations as well(!)
+        // Alternative: scale symbol coordinates manually, so stroke width scaling is not needed anymore.
+        unscaledStrokeWidth = style.strokeWidth;
+        style.strokeWidth = unscaledStrokeWidth / scaling;
+            
+        if (style.fill !== false) {
+            this.setCanvasStyle("fill", style);
+            this.canvas.beginPath();
+            for (i=0; i<symbol.length; i=i+2) {
+                x = symbol[i];
+                y = symbol[i+1];
+                if (i == 0) this.canvas.moveTo(x,y);
+                this.canvas.lineTo(x,y);
+            }
+            this.canvas.closePath();
+            this.canvas.fill();
+
+            if (this.hitDetection) {
+                this.setHitContextStyle("fill", featureId, style);
+                this.hitContext.beginPath();
+                for (i=0; i<symbol.length; i=i+2) {
+                    x = symbol[i];
+                    y = symbol[i+1];
+                    if (i == 0) this.canvas.moveTo(x,y);
+                    this.hitContext.lineTo(x,y);
+                }
+                this.hitContext.closePath();
+                this.hitContext.fill();
+            }
+        }  
+        
+        if (style.stroke !== false) {
+            this.setCanvasStyle("stroke", style);
+            this.canvas.beginPath();
+            for (i=0; i<symbol.length; i=i+2) {
+                x = symbol[i];
+                y = symbol[i+1];
+                if (i == 0) this.canvas.moveTo(x,y);
+                this.canvas.lineTo(x,y);
+            }
+            this.canvas.closePath();
+            this.canvas.stroke();
+            
+            
+            if (this.hitDetection) {
+                this.setHitContextStyle("stroke", featureId, style, scaling);
+                this.hitContext.beginPath();
+                for (i=0; i<symbol.length; i=i+2) {
+                    x = symbol[i];
+                    y = symbol[i+1];
+                    if (i == 0) this.hitContext.moveTo(x,y);
+                    this.hitContext.lineTo(x,y);
+                }
+                this.hitContext.closePath();
+                this.hitContext.stroke();
+            }
+            
+        }
+        
+        style.strokeWidth = unscaledStrokeWidth;
+        this.canvas.restore();
+        if (this.hitDetection) { this.hitContext.restore(); }
+        this.setCanvasStyle("reset");  
+    },
+
+    /**
+     * Method: setCanvasStyle
+     * Prepare the canvas for drawing by setting various global settings.
+     *
+     * Parameters:
+     * type - {String} one of 'stroke', 'fill', or 'reset'
+     * style - {Object} Symbolizer hash
+     */
+    setCanvasStyle: function(type, style) {
+        if (type === "fill") {     
+            this.canvas.globalAlpha = style['fillOpacity'];
+            this.canvas.fillStyle = style['fillColor'];
+        } else if (type === "stroke") {  
+            this.canvas.globalAlpha = style['strokeOpacity'];
+            this.canvas.strokeStyle = style['strokeColor'];
+            this.canvas.lineWidth = style['strokeWidth'];
+        } else {
+            this.canvas.globalAlpha = 0;
+            this.canvas.lineWidth = 1;
+        }
+    },
+    
+    /**
+     * Method: featureIdToHex
+     * Convert a feature ID string into an RGB hex string.
+     *
+     * Parameters:
+     * featureId - {String} Feature id
+     *
+     * Returns:
+     * {String} RGB hex string.
+     */
+    featureIdToHex: function(featureId) {
+        var id = Number(featureId.split("_").pop()) + 1; // zero for no feature
+        if (id >= 16777216) {
+            this.hitOverflow = id - 16777215;
+            id = id % 16777216 + 1;
+        }
+        var hex = "000000" + id.toString(16);
+        var len = hex.length;
+        hex = "#" + hex.substring(len-6, len);
+        return hex;
+    },
+    
+    /**
+     * Method: setHitContextStyle
+     * Prepare the hit canvas for drawing by setting various global settings.
+     *
+     * Parameters:
+     * type - {String} one of 'stroke', 'fill', or 'reset'
+     * featureId - {String} The feature id.
+     * symbolizer - {<OpenLayers.Symbolizer>} The symbolizer.
+     */
+    setHitContextStyle: function(type, featureId, symbolizer, strokeScaling) {
+        var hex = this.featureIdToHex(featureId);
+        if (type == "fill") {
+            this.hitContext.globalAlpha = 1.0;
+            this.hitContext.fillStyle = hex;
+        } else if (type == "stroke") {  
+            this.hitContext.globalAlpha = 1.0;
+            this.hitContext.strokeStyle = hex;
+            // bump up stroke width to deal with antialiasing. If strokeScaling is defined, we're rendering a symbol 
+            // on a transformed canvas, so the antialias width bump has to scale as well.
+            if (typeof strokeScaling === "undefined") {
+                this.hitContext.lineWidth = symbolizer.strokeWidth + 2;
+            } else {
+                if (!isNaN(strokeScaling)) { this.hitContext.lineWidth = symbolizer.strokeWidth + 2.0 / strokeScaling; }
+            }
+        } else {
+            this.hitContext.globalAlpha = 0;
+            this.hitContext.lineWidth = 1;
+        }
+    },
+
+    /**
+     * Method: drawPoint
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * geometry - {<OpenLayers.Geometry>}
+     * style    - {Object}
+     * featureId - {String}
+     */ 
+    drawPoint: function(geometry, style, featureId) {
+        if(style.graphic !== false) {
+            if(style.externalGraphic) {
+                this.drawExternalGraphic(geometry, style, featureId);
+            } else if (style.graphicName && (style.graphicName != "circle")) {
+                this.drawNamedSymbol(geometry, style, featureId);
+            } else {
+                var pt = this.getLocalXY(geometry);
+                var p0 = pt[0];
+                var p1 = pt[1];
+                if(!isNaN(p0) && !isNaN(p1)) {
+                    var twoPi = Math.PI*2;
+                    var radius = style.pointRadius;
+                    if(style.fill !== false) {
+                        this.setCanvasStyle("fill", style);
+                        this.canvas.beginPath();
+                        this.canvas.arc(p0, p1, radius, 0, twoPi, true);
+                        this.canvas.fill();
+                        if (this.hitDetection) {
+                            this.setHitContextStyle("fill", featureId, style);
+                            this.hitContext.beginPath();
+                            this.hitContext.arc(p0, p1, radius, 0, twoPi, true);
+                            this.hitContext.fill();
+                        }
+                    }
+
+                    if(style.stroke !== false) {
+                        this.setCanvasStyle("stroke", style);
+                        this.canvas.beginPath();
+                        this.canvas.arc(p0, p1, radius, 0, twoPi, true);
+                        this.canvas.stroke();
+                        if (this.hitDetection) {
+                            this.setHitContextStyle("stroke", featureId, style);
+                            this.hitContext.beginPath();
+                            this.hitContext.arc(p0, p1, radius, 0, twoPi, true);
+                            this.hitContext.stroke();
+                        }
+                        this.setCanvasStyle("reset");
+                    }
+                }
+            }
+        }
+    },
+    
+    /**
+     * Method: drawLineString
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * geometry - {<OpenLayers.Geometry>}
+     * style    - {Object}
+     * featureId - {String}
+     */ 
+    drawLineString: function(geometry, style, featureId) {
+        style = OpenLayers.Util.applyDefaults({fill: false}, style);
+        this.drawLinearRing(geometry, style, featureId);
+    },    
+    
+    /**
+     * Method: drawLinearRing
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * geometry - {<OpenLayers.Geometry>}
+     * style    - {Object}
+     * featureId - {String}
+     */ 
+    drawLinearRing: function(geometry, style, featureId) {
+        if (style.fill !== false) {
+            this.setCanvasStyle("fill", style);
+            this.renderPath(this.canvas, geometry, style, featureId, "fill");
+            if (this.hitDetection) {
+                this.setHitContextStyle("fill", featureId, style);
+                this.renderPath(this.hitContext, geometry, style, featureId, "fill");
+            }
+        }
+        if (style.stroke !== false) {
+            this.setCanvasStyle("stroke", style);
+            this.renderPath(this.canvas, geometry, style, featureId, "stroke");
+            if (this.hitDetection) {
+                this.setHitContextStyle("stroke", featureId, style);
+                this.renderPath(this.hitContext, geometry, style, featureId, "stroke");
+            }
+        }
+        this.setCanvasStyle("reset");
+    },
+    
+    /**
+     * Method: renderPath
+     * Render a path with stroke and optional fill.
+     */
+    renderPath: function(context, geometry, style, featureId, type) {
+        var components = geometry.components;
+        var len = components.length;
+        context.beginPath();
+        var start = this.getLocalXY(components[0]);
+        var x = start[0];
+        var y = start[1];
+        if (!isNaN(x) && !isNaN(y)) {
+            context.moveTo(start[0], start[1]);
+            for (var i=1; i<len; ++i) {
+                var pt = this.getLocalXY(components[i]);
+                context.lineTo(pt[0], pt[1]);
+            }
+            if (type === "fill") {
+                context.fill();
+            } else {
+                context.stroke();
+            }
+        }
+    },
+    
+    /**
+     * Method: drawPolygon
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * geometry - {<OpenLayers.Geometry>}
+     * style    - {Object}
+     * featureId - {String}
+     */ 
+    drawPolygon: function(geometry, style, featureId) {
+        var components = geometry.components;
+        var len = components.length;
+        this.drawLinearRing(components[0], style, featureId);
+        // erase inner rings
+        for (var i=1; i<len; ++i) {
+            /** 
+             * Note that this is overly agressive.  Here we punch holes through 
+             * all previously rendered features on the same canvas.  A better 
+             * solution for polygons with interior rings would be to draw the 
+             * polygon on a sketch canvas first.  We could erase all holes 
+             * there and then copy the drawing to the layer canvas. 
+             * TODO: http://trac.osgeo.org/openlayers/ticket/3130 
+             */
+            this.canvas.globalCompositeOperation = "destination-out";
+            if (this.hitDetection) {
+                this.hitContext.globalCompositeOperation = "destination-out";
+            }
+            this.drawLinearRing(
+                components[i], 
+                OpenLayers.Util.applyDefaults({stroke: false, fillOpacity: 1.0}, style),
+                featureId
+            );
+            this.canvas.globalCompositeOperation = "source-over";
+            if (this.hitDetection) {
+                this.hitContext.globalCompositeOperation = "source-over";
+            }
+            this.drawLinearRing(
+                components[i], 
+                OpenLayers.Util.applyDefaults({fill: false}, style),
+                featureId
+            );
+        }
+    },
+    
+    /**
+     * Method: drawText
+     * This method is only called by the renderer itself.
+     *
+     * Parameters:
+     * location - {<OpenLayers.Point>}
+     * style    - {Object}
+     */
+    drawText: function(location, style) {
+        var pt = this.getLocalXY(location);
+
+        this.setCanvasStyle("reset");
+        this.canvas.fillStyle = style.fontColor;
+        this.canvas.globalAlpha = style.fontOpacity || 1.0;
+        var fontStyle = [style.fontStyle ? style.fontStyle : "normal",
+                         "normal", // "font-variant" not supported
+                         style.fontWeight ? style.fontWeight : "normal",
+                         style.fontSize ? style.fontSize : "1em",
+                         style.fontFamily ? style.fontFamily : "sans-serif"].join(" ");
+        var labelRows = style.label.split('\n');
+        var numRows = labelRows.length;
+        if (this.canvas.fillText) {
+            // HTML5
+            this.canvas.font = fontStyle;
+            this.canvas.textAlign =
+                OpenLayers.Renderer.Canvas.LABEL_ALIGN[style.labelAlign[0]] ||
+                "center";
+            this.canvas.textBaseline =
+                OpenLayers.Renderer.Canvas.LABEL_ALIGN[style.labelAlign[1]] ||
+                "middle";
+            var vfactor =
+                OpenLayers.Renderer.Canvas.LABEL_FACTOR[style.labelAlign[1]];
+            if (vfactor == null) {
+                vfactor = -.5;
+            }
+            var lineHeight =
+                this.canvas.measureText('Mg').height ||
+                this.canvas.measureText('xx').width;
+            pt[1] += lineHeight*vfactor*(numRows-1);
+            for (var i = 0; i < numRows; i++) {
+                if (style.labelOutlineWidth) {
+                    this.canvas.save();
+                    this.canvas.globalAlpha = style.labelOutlineOpacity || style.fontOpacity || 1.0;
+                    this.canvas.strokeStyle = style.labelOutlineColor;
+                    this.canvas.lineWidth = style.labelOutlineWidth;
+                    this.canvas.strokeText(labelRows[i], pt[0], pt[1] + (lineHeight*i) + 1);
+                    this.canvas.restore();
+                }
+                this.canvas.fillText(labelRows[i], pt[0], pt[1] + (lineHeight*i));
+            }
+        } else if (this.canvas.mozDrawText) {
+            // Mozilla pre-Gecko1.9.1 (<FF3.1)
+            this.canvas.mozTextStyle = fontStyle;
+            // No built-in text alignment, so we measure and adjust the position
+            var hfactor =
+                OpenLayers.Renderer.Canvas.LABEL_FACTOR[style.labelAlign[0]];
+            if (hfactor == null) {
+                hfactor = -.5;
+            }
+            var vfactor =
+                OpenLayers.Renderer.Canvas.LABEL_FACTOR[style.labelAlign[1]];
+            if (vfactor == null) {
+                vfactor = -.5;
+            }
+            var lineHeight = this.canvas.mozMeasureText('xx');
+            pt[1] += lineHeight*(1 + (vfactor*numRows));
+            for (var i = 0; i < numRows; i++) {
+                var x = pt[0] + (hfactor*this.canvas.mozMeasureText(labelRows[i]));
+                var y = pt[1] + (i*lineHeight);
+                this.canvas.translate(x, y);
+                this.canvas.mozDrawText(labelRows[i]);
+                this.canvas.translate(-x, -y);
+            }
+        }
+        this.setCanvasStyle("reset");
+    },
+    
+    /**
+     * Method: getLocalXY
+     * transform geographic xy into pixel xy
+     *
+     * Parameters: 
+     * point - {<OpenLayers.Geometry.Point>}
+     */
+    getLocalXY: function(point) {
+        var resolution = this.getResolution();
+        var extent = this.extent;
+        var x = ((point.x - this.featureDx) / resolution + (-extent.left / resolution));
+        var y = ((extent.top / resolution) - point.y / resolution);
+        return [x, y];
+    },
+
+    /**
+     * Method: clear
+     * Clear all vectors from the renderer.
+     */    
+    clear: function() {
+        var height = this.root.height;
+        var width = this.root.width;
+        this.canvas.clearRect(0, 0, width, height);
+        this.features = {};
+        if (this.hitDetection) {
+            this.hitContext.clearRect(0, 0, width, height);
+        }
+    },
+
+    /**
+     * Method: getFeatureIdFromEvent
+     * Returns a feature id from an event on the renderer.  
+     * 
+     * Parameters:
+     * evt - {<OpenLayers.Event>} 
+     *
+     * Returns:
+     * {<OpenLayers.Feature.Vector} A feature or undefined.  This method returns a 
+     *     feature instead of a feature id to avoid an unnecessary lookup on the
+     *     layer.
+     */
+    getFeatureIdFromEvent: function(evt) {
+        var featureId, feature;
+        
+        if (this.hitDetection && this.root.style.display !== "none") {
+            // this dragging check should go in the feature handler
+            if (!this.map.dragging) {
+                var xy = evt.xy;
+                var x = xy.x | 0;
+                var y = xy.y | 0;
+                var data = this.hitContext.getImageData(x, y, 1, 1).data;
+                if (data[3] === 255) { // antialiased
+                    var id = data[2] + (256 * (data[1] + (256 * data[0])));
+                    if (id) {
+                        featureId = "OpenLayers_Feature_Vector_" + (id - 1 + this.hitOverflow);
+                        try {
+                            feature = this.features[featureId][0];
+                        } catch(err) {
+                            // Because of antialiasing on the canvas, when the hit location is at a point where the edge of
+                            // one symbol intersects the interior of another symbol, a wrong hit color (and therefore id) results.
+                            // todo: set Antialiasing = 'off' on the hitContext as soon as browsers allow it.
+                        }
+                    }
+                }
+            }
+        }
+        return feature;
+    },
+    
+    /**
+     * Method: eraseFeatures 
+     * This is called by the layer to erase features; removes the feature from
+     *     the list, then redraws the layer.
+     * 
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>)} 
+     */
+    eraseFeatures: function(features) {
+        if(!(OpenLayers.Util.isArray(features))) {
+            features = [features];
+        }
+        for(var i=0; i<features.length; ++i) {
+            delete this.features[features[i].id];
+        }
+        this.redraw();
+    },
+
+    /**
+     * Method: redraw
+     * The real 'meat' of the function: any time things have changed,
+     *     redraw() can be called to loop over all the data and (you guessed
+     *     it) redraw it.  Unlike Elements-based Renderers, we can't interact
+     *     with things once they're drawn, to remove them, for example, so
+     *     instead we have to just clear everything and draw from scratch.
+     */
+    redraw: function() {
+        if (!this.locked) {
+            var height = this.root.height;
+            var width = this.root.width;
+            this.canvas.clearRect(0, 0, width, height);
+            if (this.hitDetection) {
+                this.hitContext.clearRect(0, 0, width, height);
+            }
+            var labelMap = [];
+            var feature, geometry, style;
+            var worldBounds = (this.map.baseLayer && this.map.baseLayer.wrapDateLine) && this.map.getMaxExtent();
+            for (var id in this.features) {
+                if (!this.features.hasOwnProperty(id)) { continue; }
+                feature = this.features[id][0];
+                geometry = feature.geometry;
+                this.calculateFeatureDx(geometry.getBounds(), worldBounds);
+                style = this.features[id][1];
+                this.drawGeometry(geometry, style, feature.id);
+                if(style.label) {
+                    labelMap.push([feature, style]);
+                }
+            }
+            var item;
+            for (var i=0, len=labelMap.length; i<len; ++i) {
+                item = labelMap[i];
+                this.drawText(item[0].geometry.getCentroid(), item[1]);
+            }
+        }    
+    },
+
+    CLASS_NAME: "OpenLayers.Renderer.Canvas"
+});
+
+/**
+ * Constant: OpenLayers.Renderer.Canvas.LABEL_ALIGN
+ * {Object}
+ */
+OpenLayers.Renderer.Canvas.LABEL_ALIGN = {
+    "l": "left",
+    "r": "right",
+    "t": "top",
+    "b": "bottom"
+};
+
+/**
+ * Constant: OpenLayers.Renderer.Canvas.LABEL_FACTOR
+ * {Object}
+ */
+OpenLayers.Renderer.Canvas.LABEL_FACTOR = {
+    "l": 0,
+    "r": -1,
+    "t": 0,
+    "b": -1
+};
+
+/**
+ * Constant: OpenLayers.Renderer.Canvas.drawImageScaleFactor
+ * {Number} Scale factor to apply to the canvas drawImage arguments. This
+ *     is always 1 except for Android 2.1 devices, to work around
+ *     http://code.google.com/p/android/issues/detail?id=5141.
+ */
+OpenLayers.Renderer.Canvas.drawImageScaleFactor = null;
+/* ======================================================================
+    OpenLayers/Handler.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Events.js
+ */
+
+/**
+ * Class: OpenLayers.Handler
+ * Base class to construct a higher-level handler for event sequences.  All
+ *     handlers have activate and deactivate methods.  In addition, they have
+ *     methods named like browser events.  When a handler is activated, any
+ *     additional methods named like a browser event is registered as a
+ *     listener for the corresponding event.  When a handler is deactivated,
+ *     those same methods are unregistered as event listeners.
+ *
+ * Handlers also typically have a callbacks object with keys named like
+ *     the abstracted events or event sequences that they are in charge of
+ *     handling.  The controls that wrap handlers define the methods that
+ *     correspond to these abstract events - so instead of listening for
+ *     individual browser events, they only listen for the abstract events
+ *     defined by the handler.
+ *     
+ * Handlers are created by controls, which ultimately have the responsibility
+ *     of making changes to the the state of the application.  Handlers
+ *     themselves may make temporary changes, but in general are expected to
+ *     return the application in the same state that they found it.
+ */
+OpenLayers.Handler = OpenLayers.Class({
+
+    /**
+     * Property: id
+     * {String}
+     */
+    id: null,
+        
+    /**
+     * APIProperty: control
+     * {<OpenLayers.Control>}. The control that initialized this handler.  The
+     *     control is assumed to have a valid map property - that map is used
+     *     in the handler's own setMap method.
+     */
+    control: null,
+
+    /**
+     * Property: map
+     * {<OpenLayers.Map>}
+     */
+    map: null,
+
+    /**
+     * APIProperty: keyMask
+     * {Integer} Use bitwise operators and one or more of the OpenLayers.Handler
+     *     constants to construct a keyMask.  The keyMask is used by
+     *     <checkModifiers>.  If the keyMask matches the combination of keys
+     *     down on an event, checkModifiers returns true.
+     *
+     * Example:
+     * (code)
+     *     // handler only responds if the Shift key is down
+     *     handler.keyMask = OpenLayers.Handler.MOD_SHIFT;
+     *
+     *     // handler only responds if Ctrl-Shift is down
+     *     handler.keyMask = OpenLayers.Handler.MOD_SHIFT |
+     *                       OpenLayers.Handler.MOD_CTRL;
+     * (end)
+     */
+    keyMask: null,
+
+    /**
+     * Property: active
+     * {Boolean}
+     */
+    active: false,
+    
+    /**
+     * Property: evt
+     * {Event} This property references the last event handled by the handler.
+     *     Note that this property is not part of the stable API.  Use of the
+     *     evt property should be restricted to controls in the library
+     *     or other applications that are willing to update with changes to
+     *     the OpenLayers code.
+     */
+    evt: null,
+    
+    /**
+     * Property: touch
+     * {Boolean} Indicates the support of touch events. When touch events are 
+     *     started touch will be true and all mouse related listeners will do 
+     *     nothing.
+     */
+    touch: false,
+
+    /**
+     * Constructor: OpenLayers.Handler
+     * Construct a handler.
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that initialized this
+     *     handler.  The control is assumed to have a valid map property; that
+     *     map is used in the handler's own setMap method.  If a map property
+     *     is present in the options argument it will be used instead.
+     * callbacks - {Object} An object whose properties correspond to abstracted
+     *     events or sequences of browser events.  The values for these
+     *     properties are functions defined by the control that get called by
+     *     the handler.
+     * options - {Object} An optional object whose properties will be set on
+     *     the handler.
+     */
+    initialize: function(control, callbacks, options) {
+        OpenLayers.Util.extend(this, options);
+        this.control = control;
+        this.callbacks = callbacks;
+
+        var map = this.map || control.map;
+        if (map) {
+            this.setMap(map); 
+        }
+        
+        this.id = OpenLayers.Util.createUniqueID(this.CLASS_NAME + "_");
+    },
+    
+    /**
+     * Method: setMap
+     */
+    setMap: function (map) {
+        this.map = map;
+    },
+
+    /**
+     * Method: checkModifiers
+     * Check the keyMask on the handler.  If no <keyMask> is set, this always
+     *     returns true.  If a <keyMask> is set and it matches the combination
+     *     of keys down on an event, this returns true.
+     *
+     * Returns:
+     * {Boolean} The keyMask matches the keys down on an event.
+     */
+    checkModifiers: function (evt) {
+        if(this.keyMask == null) {
+            return true;
+        }
+        /* calculate the keyboard modifier mask for this event */
+        var keyModifiers =
+            (evt.shiftKey ? OpenLayers.Handler.MOD_SHIFT : 0) |
+            (evt.ctrlKey  ? OpenLayers.Handler.MOD_CTRL  : 0) |
+            (evt.altKey   ? OpenLayers.Handler.MOD_ALT   : 0) |
+            (evt.metaKey  ? OpenLayers.Handler.MOD_META  : 0);
+    
+        /* if it differs from the handler object's key mask,
+           bail out of the event handler */
+        return (keyModifiers == this.keyMask);
+    },
+
+    /**
+     * APIMethod: activate
+     * Turn on the handler.  Returns false if the handler was already active.
+     * 
+     * Returns: 
+     * {Boolean} The handler was activated.
+     */
+    activate: function() {
+        if(this.active) {
+            return false;
+        }
+        // register for event handlers defined on this class.
+        var events = OpenLayers.Events.prototype.BROWSER_EVENTS;
+        for (var i=0, len=events.length; i<len; i++) {
+            if (this[events[i]]) {
+                this.register(events[i], this[events[i]]); 
+            }
+        } 
+        this.active = true;
+        return true;
+    },
+    
+    /**
+     * APIMethod: deactivate
+     * Turn off the handler.  Returns false if the handler was already inactive.
+     * 
+     * Returns:
+     * {Boolean} The handler was deactivated.
+     */
+    deactivate: function() {
+        if(!this.active) {
+            return false;
+        }
+        // unregister event handlers defined on this class.
+        var events = OpenLayers.Events.prototype.BROWSER_EVENTS;
+        for (var i=0, len=events.length; i<len; i++) {
+            if (this[events[i]]) {
+                this.unregister(events[i], this[events[i]]); 
+            }
+        } 
+        this.touch = false;
+        this.active = false;
+        return true;
+    },
+
+    /**
+     * Method: startTouch
+     * Start touch events, this method must be called by subclasses in 
+     *     "touchstart" method. When touch events are started <touch> will be
+     *     true and all mouse related listeners will do nothing.
+     */
+    startTouch: function() {
+        if (!this.touch) {
+            this.touch = true;
+            var events = [
+                "mousedown", "mouseup", "mousemove", "click", "dblclick",
+                "mouseout"
+            ];
+            for (var i=0, len=events.length; i<len; i++) {
+                if (this[events[i]]) {
+                    this.unregister(events[i], this[events[i]]); 
+                }
+            } 
+        }
+    },
+
+    /**
+    * Method: callback
+    * Trigger the control's named callback with the given arguments
+    *
+    * Parameters:
+    * name - {String} The key for the callback that is one of the properties
+    *     of the handler's callbacks object.
+    * args - {Array(*)} An array of arguments (any type) with which to call 
+    *     the callback (defined by the control).
+    */
+    callback: function (name, args) {
+        if (name && this.callbacks[name]) {
+            this.callbacks[name].apply(this.control, args);
+        }
+    },
+
+    /**
+    * Method: register
+    * register an event on the map
+    */
+    register: function (name, method) {
+        // TODO: deal with registerPriority in 3.0
+        this.map.events.registerPriority(name, this, method);
+        this.map.events.registerPriority(name, this, this.setEvent);
+    },
+
+    /**
+    * Method: unregister
+    * unregister an event from the map
+    */
+    unregister: function (name, method) {
+        this.map.events.unregister(name, this, method);   
+        this.map.events.unregister(name, this, this.setEvent);
+    },
+    
+    /**
+     * Method: setEvent
+     * With each registered browser event, the handler sets its own evt
+     *     property.  This property can be accessed by controls if needed
+     *     to get more information about the event that the handler is
+     *     processing.
+     *
+     * This allows modifier keys on the event to be checked (alt, shift, ctrl,
+     *     and meta cannot be checked with the keyboard handler).  For a
+     *     control to determine which modifier keys are associated with the
+     *     event that a handler is currently processing, it should access
+     *     (code)handler.evt.altKey || handler.evt.shiftKey ||
+     *     handler.evt.ctrlKey || handler.evt.metaKey(end).
+     *
+     * Parameters:
+     * evt - {Event} The browser event.
+     */
+    setEvent: function(evt) {
+        this.evt = evt;
+        return true;
+    },
+
+    /**
+     * Method: destroy
+     * Deconstruct the handler.
+     */
+    destroy: function () {
+        // unregister event listeners
+        this.deactivate();
+        // eliminate circular references
+        this.control = this.map = null;        
+    },
+
+    CLASS_NAME: "OpenLayers.Handler"
+});
+
+/**
+ * Constant: OpenLayers.Handler.MOD_NONE
+ * If set as the <keyMask>, <checkModifiers> returns false if any key is down.
+ */
+OpenLayers.Handler.MOD_NONE  = 0;
+
+/**
+ * Constant: OpenLayers.Handler.MOD_SHIFT
+ * If set as the <keyMask>, <checkModifiers> returns false if Shift is down.
+ */
+OpenLayers.Handler.MOD_SHIFT = 1;
+
+/**
+ * Constant: OpenLayers.Handler.MOD_CTRL
+ * If set as the <keyMask>, <checkModifiers> returns false if Ctrl is down.
+ */
+OpenLayers.Handler.MOD_CTRL  = 2;
+
+/**
+ * Constant: OpenLayers.Handler.MOD_ALT
+ * If set as the <keyMask>, <checkModifiers> returns false if Alt is down.
+ */
+OpenLayers.Handler.MOD_ALT   = 4;
+
+/**
+ * Constant: OpenLayers.Handler.MOD_META
+ * If set as the <keyMask>, <checkModifiers> returns false if Cmd is down.
+ */
+OpenLayers.Handler.MOD_META  = 8;
+
+
+/* ======================================================================
+    OpenLayers/Handler/Drag.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Handler.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.Drag
+ * The drag handler is used to deal with sequences of browser events related
+ *     to dragging.  The handler is used by controls that want to know when
+ *     a drag sequence begins, when a drag is happening, and when it has
+ *     finished.
+ *
+ * Controls that use the drag handler typically construct it with callbacks
+ *     for 'down', 'move', and 'done'.  Callbacks for these keys are called
+ *     when the drag begins, with each move, and when the drag is done.  In
+ *     addition, controls can have callbacks keyed to 'up' and 'out' if they
+ *     care to differentiate between the types of events that correspond with
+ *     the end of a drag sequence.  If no drag actually occurs (no mouse move)
+ *     the 'down' and 'up' callbacks will be called, but not the 'done'
+ *     callback.
+ *
+ * Create a new drag handler with the <OpenLayers.Handler.Drag> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Handler>
+ */
+OpenLayers.Handler.Drag = OpenLayers.Class(OpenLayers.Handler, {
+  
+    /** 
+     * Property: started
+     * {Boolean} When a mousedown or touchstart event is received, we want to
+     * record it, but not set 'dragging' until the mouse moves after starting.
+     */
+    started: false,
+
+    /**
+     * Property: stopDown
+     * {Boolean} Stop propagation of mousedown events from getting to listeners
+     *     on the same element.  Default is true.
+     */
+    stopDown: true,
+
+    /** 
+     * Property: dragging 
+     * {Boolean} 
+     */
+    dragging: false,
+
+    /** 
+     * Property: last
+     * {<OpenLayers.Pixel>} The last pixel location of the drag.
+     */
+    last: null,
+
+    /** 
+     * Property: start
+     * {<OpenLayers.Pixel>} The first pixel location of the drag.
+     */
+    start: null,
+
+    /**
+     * Property: lastMoveEvt
+     * {Object} The last mousemove event that occurred. Used to
+     *     position the map correctly when our "delay drag"
+     *     timeout expired.
+     */
+    lastMoveEvt: null,
+
+    /**
+     * Property: oldOnselectstart
+     * {Function}
+     */
+    oldOnselectstart: null,
+    
+    /**
+     * Property: interval
+     * {Integer} In order to increase performance, an interval (in 
+     *     milliseconds) can be set to reduce the number of drag events 
+     *     called. If set, a new drag event will not be set until the 
+     *     interval has passed. 
+     *     Defaults to 0, meaning no interval. 
+     */
+    interval: 0,
+    
+    /**
+     * Property: timeoutId
+     * {String} The id of the timeout used for the mousedown interval.
+     *     This is "private", and should be left alone.
+     */
+    timeoutId: null,
+    
+    /**
+     * APIProperty: documentDrag
+     * {Boolean} If set to true, the handler will also handle mouse moves when
+     *     the cursor has moved out of the map viewport. Default is false.
+     */
+    documentDrag: false,
+    
+    /**
+     * Property: documentEvents
+     * {Boolean} Are we currently observing document events?
+     */
+    documentEvents: null,
+
+    /**
+     * Constructor: OpenLayers.Handler.Drag
+     * Returns OpenLayers.Handler.Drag
+     * 
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that is making use of
+     *     this handler.  If a handler is being used without a control, the
+     *     handlers setMap method must be overridden to deal properly with
+     *     the map.
+     * callbacks - {Object} An object containing a single function to be
+     *     called when the drag operation is finished. The callback should
+     *     expect to recieve a single argument, the pixel location of the event.
+     *     Callbacks for 'move' and 'done' are supported. You can also speficy
+     *     callbacks for 'down', 'up', and 'out' to respond to those events.
+     * options - {Object} 
+     */
+    initialize: function(control, callbacks, options) {
+        OpenLayers.Handler.prototype.initialize.apply(this, arguments);
+        
+        if (this.documentDrag === true) {
+            var me = this;
+            this._docMove = function(evt) {
+                me.mousemove({
+                    xy: {x: evt.clientX, y: evt.clientY},
+                    element: document
+                });
+            };
+            this._docUp = function(evt) {
+                me.mouseup({xy: {x: evt.clientX, y: evt.clientY}});
+            };
+        }
+    },
+
+    
+    /**
+     * Method: dragstart
+     * This private method is factorized from mousedown and touchstart methods
+     *
+     * Parameters:
+     * evt - {Event} The event
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    dragstart: function (evt) {
+        var propagate = true;
+        this.dragging = false;
+        if (this.checkModifiers(evt) &&
+               (OpenLayers.Event.isLeftClick(evt) ||
+                OpenLayers.Event.isSingleTouch(evt))) {
+            this.started = true;
+            this.start = evt.xy;
+            this.last = evt.xy;
+            OpenLayers.Element.addClass(
+                this.map.viewPortDiv, "olDragDown"
+            );
+            this.down(evt);
+            this.callback("down", [evt.xy]);
+
+            // prevent document dragging
+            OpenLayers.Event.preventDefault(evt);
+
+            if(!this.oldOnselectstart) {
+                this.oldOnselectstart = document.onselectstart ?
+                    document.onselectstart : OpenLayers.Function.True;
+            }
+            document.onselectstart = OpenLayers.Function.False;
+
+            propagate = !this.stopDown;
+        } else {
+            this.started = false;
+            this.start = null;
+            this.last = null;
+        }
+        return propagate;
+    },
+
+    /**
+     * Method: dragmove
+     * This private method is factorized from mousemove and touchmove methods
+     *
+     * Parameters:
+     * evt - {Event} The event
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    dragmove: function (evt) {
+        this.lastMoveEvt = evt;
+        if (this.started && !this.timeoutId && (evt.xy.x != this.last.x ||
+                                                evt.xy.y != this.last.y)) {
+            if(this.documentDrag === true && this.documentEvents) {
+                if(evt.element === document) {
+                    this.adjustXY(evt);
+                    // do setEvent manually because the documentEvents are not
+                    // registered with the map
+                    this.setEvent(evt);
+                } else {
+                    this.removeDocumentEvents();
+                }
+            }
+            if (this.interval > 0) {
+                this.timeoutId = setTimeout(
+                    OpenLayers.Function.bind(this.removeTimeout, this),
+                    this.interval);
+            }
+            this.dragging = true;
+
+            this.move(evt);
+            this.callback("move", [evt.xy]);
+            if(!this.oldOnselectstart) {
+                this.oldOnselectstart = document.onselectstart;
+                document.onselectstart = OpenLayers.Function.False;
+            }
+            this.last = evt.xy;
+        }
+        return true;
+    },
+
+    /**
+     * Method: dragend
+     * This private method is factorized from mouseup and touchend methods
+     *
+     * Parameters:
+     * evt - {Event} The event
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    dragend: function (evt) {
+        if (this.started) {
+            if(this.documentDrag === true && this.documentEvents) {
+                this.adjustXY(evt);
+                this.removeDocumentEvents();
+            }
+            var dragged = (this.start != this.last);
+            this.started = false;
+            this.dragging = false;
+            OpenLayers.Element.removeClass(
+                this.map.viewPortDiv, "olDragDown"
+            );
+            this.up(evt);
+            this.callback("up", [evt.xy]);
+            if(dragged) {
+                this.callback("done", [evt.xy]);
+            }
+            document.onselectstart = this.oldOnselectstart;
+        }
+        return true;
+    },
+
+    /**
+     * The four methods below (down, move, up, and out) are used by subclasses
+     *     to do their own processing related to these mouse events.
+     */
+
+    /**
+     * Method: down
+     * This method is called during the handling of the mouse down event.
+     *     Subclasses can do their own processing here.
+     *
+     * Parameters:
+     * evt - {Event} The mouse down event
+     */
+    down: function(evt) {
+    },
+
+    /**
+     * Method: move
+     * This method is called during the handling of the mouse move event.
+     *     Subclasses can do their own processing here.
+     *
+     * Parameters:
+     * evt - {Event} The mouse move event
+     *
+     */
+    move: function(evt) {
+    },
+
+    /**
+     * Method: up
+     * This method is called during the handling of the mouse up event.
+     *     Subclasses can do their own processing here.
+     *
+     * Parameters:
+     * evt - {Event} The mouse up event
+     */
+    up: function(evt) {
+    },
+
+    /**
+     * Method: out
+     * This method is called during the handling of the mouse out event.
+     *     Subclasses can do their own processing here.
+     *
+     * Parameters:
+     * evt - {Event} The mouse out event
+     */
+    out: function(evt) {
+    },
+
+    /**
+     * The methods below are part of the magic of event handling.  Because
+     *     they are named like browser events, they are registered as listeners
+     *     for the events they represent.
+     */
+
+    /**
+     * Method: mousedown
+     * Handle mousedown events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    mousedown: function(evt) {
+        return this.dragstart(evt);
+    },
+
+    /**
+     * Method: touchstart
+     * Handle touchstart events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    touchstart: function(evt) {
+        this.startTouch();
+        return this.dragstart(evt);
+    },
+
+    /**
+     * Method: mousemove
+     * Handle mousemove events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    mousemove: function(evt) {
+        return this.dragmove(evt);
+    },
+
+    /**
+     * Method: touchmove
+     * Handle touchmove events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    touchmove: function(evt) {
+        return this.dragmove(evt);
+    },
+
+    /**
+     * Method: removeTimeout
+     * Private. Called by mousemove() to remove the drag timeout.
+     */
+    removeTimeout: function() {
+        this.timeoutId = null;
+        // if timeout expires while we're still dragging (mouseup
+        // hasn't occurred) then call mousemove to move to the
+        // correct position
+        if(this.dragging) {
+            this.mousemove(this.lastMoveEvt);
+        }
+    },
+
+    /**
+     * Method: mouseup
+     * Handle mouseup events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    mouseup: function(evt) {
+        return this.dragend(evt);
+    },
+
+    /**
+     * Method: touchend
+     * Handle touchend events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    touchend: function(evt) {
+        // override evt.xy with last position since touchend does not have
+        // any touch position
+        evt.xy = this.last;
+        return this.dragend(evt);
+    },
+
+    /**
+     * Method: mouseout
+     * Handle mouseout events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    mouseout: function (evt) {
+        if (this.started && OpenLayers.Util.mouseLeft(evt, this.map.viewPortDiv)) {
+            if(this.documentDrag === true) {
+                this.addDocumentEvents();
+            } else {
+                var dragged = (this.start != this.last);
+                this.started = false; 
+                this.dragging = false;
+                OpenLayers.Element.removeClass(
+                    this.map.viewPortDiv, "olDragDown"
+                );
+                this.out(evt);
+                this.callback("out", []);
+                if(dragged) {
+                    this.callback("done", [evt.xy]);
+                }
+                if(document.onselectstart) {
+                    document.onselectstart = this.oldOnselectstart;
+                }
+            }
+        }
+        return true;
+    },
+
+    /**
+     * Method: click
+     * The drag handler captures the click event.  If something else registers
+     *     for clicks on the same element, its listener will not be called 
+     *     after a drag.
+     * 
+     * Parameters: 
+     * evt - {Event} 
+     * 
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    click: function (evt) {
+        // let the click event propagate only if the mouse moved
+        return (this.start == this.last);
+    },
+
+    /**
+     * Method: activate
+     * Activate the handler.
+     * 
+     * Returns:
+     * {Boolean} The handler was successfully activated.
+     */
+    activate: function() {
+        var activated = false;
+        if(OpenLayers.Handler.prototype.activate.apply(this, arguments)) {
+            this.dragging = false;
+            activated = true;
+        }
+        return activated;
+    },
+
+    /**
+     * Method: deactivate 
+     * Deactivate the handler.
+     * 
+     * Returns:
+     * {Boolean} The handler was successfully deactivated.
+     */
+    deactivate: function() {
+        var deactivated = false;
+        if(OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
+            this.started = false;
+            this.dragging = false;
+            this.start = null;
+            this.last = null;
+            deactivated = true;
+            OpenLayers.Element.removeClass(
+                this.map.viewPortDiv, "olDragDown"
+            );
+        }
+        return deactivated;
+    },
+    
+    /**
+     * Method: adjustXY
+     * Converts event coordinates that are relative to the document body to
+     * ones that are relative to the map viewport. The latter is the default in
+     * OpenLayers.
+     * 
+     * Parameters:
+     * evt - {Object}
+     */
+    adjustXY: function(evt) {
+        var pos = OpenLayers.Util.pagePosition(this.map.viewPortDiv);
+        evt.xy.x -= pos[0];
+        evt.xy.y -= pos[1];
+    },
+    
+    /**
+     * Method: addDocumentEvents
+     * Start observing document events when documentDrag is true and the mouse
+     * cursor leaves the map viewport while dragging.
+     */
+    addDocumentEvents: function() {
+        OpenLayers.Element.addClass(document.body, "olDragDown");
+        this.documentEvents = true;
+        OpenLayers.Event.observe(document, "mousemove", this._docMove);
+        OpenLayers.Event.observe(document, "mouseup", this._docUp);
+    },
+    
+    /**
+     * Method: removeDocumentEvents
+     * Stops observing document events when documentDrag is true and the mouse
+     * cursor re-enters the map viewport while dragging.
+     */
+    removeDocumentEvents: function() {
+        OpenLayers.Element.removeClass(document.body, "olDragDown");
+        this.documentEvents = false;
+        OpenLayers.Event.stopObserving(document, "mousemove", this._docMove);
+        OpenLayers.Event.stopObserving(document, "mouseup", this._docUp);
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.Drag"
+});
+/* ======================================================================
+    OpenLayers/Handler/Keyboard.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Handler.js
+ * @requires OpenLayers/Events.js
+ */
+
+/**
+ * Class: OpenLayers.handler.Keyboard
+ * A handler for keyboard events.  Create a new instance with the
+ *     <OpenLayers.Handler.Keyboard> constructor.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Handler> 
+ */
+OpenLayers.Handler.Keyboard = OpenLayers.Class(OpenLayers.Handler, {
+
+    /* http://www.quirksmode.org/js/keys.html explains key x-browser
+        key handling quirks in pretty nice detail */
+
+    /** 
+     * Constant: KEY_EVENTS
+     * keydown, keypress, keyup
+     */
+    KEY_EVENTS: ["keydown", "keyup"],
+
+    /** 
+    * Property: eventListener
+    * {Function}
+    */
+    eventListener: null,
+
+    /**
+     * Property: observeElement
+     * {DOMElement|String} The DOM element on which we listen for
+     *     key events. Default to the document.
+     */
+    observeElement: null,
+
+    /**
+     * Constructor: OpenLayers.Handler.Keyboard
+     * Returns a new keyboard handler.
+     * 
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that is making use of
+     *     this handler.  If a handler is being used without a control, the
+     *     handlers setMap method must be overridden to deal properly with
+     *     the map.
+     * callbacks - {Object} An object containing a single function to be
+     *     called when the drag operation is finished. The callback should
+     *     expect to recieve a single argument, the pixel location of the event.
+     *     Callbacks for 'keydown', 'keypress', and 'keyup' are supported.
+     * options - {Object} Optional object whose properties will be set on the
+     *     handler.
+     */
+    initialize: function(control, callbacks, options) {
+        OpenLayers.Handler.prototype.initialize.apply(this, arguments);
+        // cache the bound event listener method so it can be unobserved later
+        this.eventListener = OpenLayers.Function.bindAsEventListener(
+            this.handleKeyEvent, this
+        );
+    },
+    
+    /**
+     * Method: destroy
+     */
+    destroy: function() {
+        this.deactivate();
+        this.eventListener = null;
+        OpenLayers.Handler.prototype.destroy.apply(this, arguments);
+    },
+
+    /**
+     * Method: activate
+     */
+    activate: function() {
+        if (OpenLayers.Handler.prototype.activate.apply(this, arguments)) {
+            this.observeElement = this.observeElement || document;
+            for (var i=0, len=this.KEY_EVENTS.length; i<len; i++) {
+                OpenLayers.Event.observe(
+                    this.observeElement, this.KEY_EVENTS[i], this.eventListener);
+            }
+            return true;
+        } else {
+            return false;
+        }
+    },
+
+    /**
+     * Method: deactivate
+     */
+    deactivate: function() {
+        var deactivated = false;
+        if (OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
+            for (var i=0, len=this.KEY_EVENTS.length; i<len; i++) {
+                OpenLayers.Event.stopObserving(
+                    this.observeElement, this.KEY_EVENTS[i], this.eventListener);
+            }
+            deactivated = true;
+        }
+        return deactivated;
+    },
+
+    /**
+     * Method: handleKeyEvent 
+     */
+    handleKeyEvent: function (evt) {
+        if (this.checkModifiers(evt)) {
+            this.callback(evt.type, [evt]);
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.Keyboard"
+});
+/* ======================================================================
+    OpenLayers/Control/ModifyFeature.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Control.js
+ * @requires OpenLayers/Handler/Drag.js
+ * @requires OpenLayers/Handler/Keyboard.js
+ */
+
+/**
+ * Class: OpenLayers.Control.ModifyFeature
+ * Control to modify features.  When activated, a click renders the vertices
+ *     of a feature - these vertices can then be dragged.  By default, the
+ *     delete key will delete the vertex under the mouse.  New features are
+ *     added by dragging "virtual vertices" between vertices.  Create a new
+ *     control with the <OpenLayers.Control.ModifyFeature> constructor.
+ *
+ * Inherits From:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.ModifyFeature = OpenLayers.Class(OpenLayers.Control, {
+
+    /**
+     * APIProperty: documentDrag
+     * {Boolean} If set to true, dragging vertices will continue even if the
+     *     mouse cursor leaves the map viewport. Default is false.
+     */
+    documentDrag: false,
+
+    /**
+     * APIProperty: geometryTypes
+     * {Array(String)} To restrict modification to a limited set of geometry
+     *     types, send a list of strings corresponding to the geometry class
+     *     names.
+     */
+    geometryTypes: null,
+
+    /**
+     * APIProperty: clickout
+     * {Boolean} Unselect features when clicking outside any feature.
+     *     Default is true.
+     */
+    clickout: true,
+
+    /**
+     * APIProperty: toggle
+     * {Boolean} Unselect a selected feature on click.
+     *      Default is true.
+     */
+    toggle: true,
+
+    /**
+     * APIProperty: standalone
+     * {Boolean} Set to true to create a control without SelectFeature
+     *     capabilities. Default is false.  If standalone is true, to modify
+     *     a feature, call the <selectFeature> method with the target feature.
+     *     Note that you must call the <unselectFeature> method to finish
+     *     feature modification in standalone mode (before starting to modify
+     *     another feature).
+     */
+    standalone: false,
+
+    /**
+     * Property: layer
+     * {<OpenLayers.Layer.Vector>}
+     */
+    layer: null,
+
+    /**
+     * Property: feature
+     * {<OpenLayers.Feature.Vector>} Feature currently available for modification.
+     */
+    feature: null,
+
+    /**
+     * Property: vertex
+     * {<OpenLayers.Feature.Vector>} Vertex currently being modified.
+     */
+    vertex: null,
+
+    /**
+     * Property: vertices
+     * {Array(<OpenLayers.Feature.Vector>)} Verticies currently available
+     *     for dragging.
+     */
+    vertices: null,
+
+    /**
+     * Property: virtualVertices
+     * {Array(<OpenLayers.Feature.Vector>)} Virtual vertices in the middle
+     *     of each edge.
+     */
+    virtualVertices: null,
+
+    /**
+     * Property: handlers
+     * {Object}
+     */
+    handlers: null,
+
+    /**
+     * APIProperty: deleteCodes
+     * {Array(Integer)} Keycodes for deleting verticies.  Set to null to disable
+     *     vertex deltion by keypress.  If non-null, keypresses with codes
+     *     in this array will delete vertices under the mouse. Default
+     *     is 46 and 68, the 'delete' and lowercase 'd' keys.
+     */
+    deleteCodes: null,
+
+    /**
+     * APIProperty: virtualStyle
+     * {Object} A symbolizer to be used for virtual vertices.
+     */
+    virtualStyle: null,
+
+    /**
+     * APIProperty: vertexRenderIntent
+     * {String} The renderIntent to use for vertices. If no <virtualStyle> is
+     * provided, this renderIntent will also be used for virtual vertices, with
+     * a fillOpacity and strokeOpacity of 0.3. Default is null, which means
+     * that the layer's default style will be used for vertices.
+     */
+    vertexRenderIntent: null,
+
+    /**
+     * APIProperty: mode
+     * {Integer} Bitfields specifying the modification mode. Defaults to
+     *      OpenLayers.Control.ModifyFeature.RESHAPE. To set the mode to a
+     *      combination of options, use the | operator. For example, to allow
+     *      the control to both resize and rotate features, use the following
+     *      syntax
+     * (code)
+     * control.mode = OpenLayers.Control.ModifyFeature.RESIZE |
+     *                OpenLayers.Control.ModifyFeature.ROTATE;
+     *  (end)
+     */
+    mode: null,
+
+    /**
+     * APIProperty: createVertices
+     * {Boolean} Create new vertices by dragging the virtual vertices
+     *     in the middle of each edge. Default is true.
+     */
+    createVertices: true,
+
+    /**
+     * Property: modified
+     * {Boolean} The currently selected feature has been modified.
+     */
+    modified: false,
+
+    /**
+     * Property: radiusHandle
+     * {<OpenLayers.Feature.Vector>} A handle for rotating/resizing a feature.
+     */
+    radiusHandle: null,
+
+    /**
+     * Property: dragHandle
+     * {<OpenLayers.Feature.Vector>} A handle for dragging a feature.
+     */
+    dragHandle: null,
+
+    /**
+     * APIProperty: onModificationStart 
+     * {Function} *Deprecated*.  Register for "beforefeaturemodified" instead.
+     *     The "beforefeaturemodified" event is triggered on the layer before
+     *     any modification begins.
+     *
+     * Optional function to be called when a feature is selected
+     *     to be modified. The function should expect to be called with a
+     *     feature.  This could be used for example to allow to lock the
+     *     feature on server-side.
+     */
+    onModificationStart: function() {},
+
+    /**
+     * APIProperty: onModification
+     * {Function} *Deprecated*.  Register for "featuremodified" instead.
+     *     The "featuremodified" event is triggered on the layer with each
+     *     feature modification.
+     *
+     * Optional function to be called when a feature has been
+     *     modified.  The function should expect to be called with a feature.
+     */
+    onModification: function() {},
+
+    /**
+     * APIProperty: onModificationEnd
+     * {Function} *Deprecated*.  Register for "afterfeaturemodified" instead.
+     *     The "afterfeaturemodified" event is triggered on the layer after
+     *     a feature has been modified.
+     *
+     * Optional function to be called when a feature is finished 
+     *     being modified.  The function should expect to be called with a
+     *     feature.
+     */
+    onModificationEnd: function() {},
+
+    /**
+     * Constructor: OpenLayers.Control.ModifyFeature
+     * Create a new modify feature control.
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer.Vector>} Layer that contains features that
+     *     will be modified.
+     * options - {Object} Optional object whose properties will be set on the
+     *     control.
+     */
+    initialize: function(layer, options) {
+        options = options || {};
+        this.layer = layer;
+        this.vertices = [];
+        this.virtualVertices = [];
+        this.virtualStyle = OpenLayers.Util.extend({},
+            this.layer.style ||
+            this.layer.styleMap.createSymbolizer(null, options.vertexRenderIntent)
+        );
+        this.virtualStyle.fillOpacity = 0.3;
+        this.virtualStyle.strokeOpacity = 0.3;
+        this.deleteCodes = [46, 68];
+        this.mode = OpenLayers.Control.ModifyFeature.RESHAPE;
+        OpenLayers.Control.prototype.initialize.apply(this, [options]);
+        if(!(OpenLayers.Util.isArray(this.deleteCodes))) {
+            this.deleteCodes = [this.deleteCodes];
+        }
+        
+        // configure the drag handler
+        var dragCallbacks = {
+            down: function(pixel) {
+                this.vertex = null;
+                var feature = this.layer.getFeatureFromEvent(
+                        this.handlers.drag.evt);
+                if (feature) {
+                    this.dragStart(feature);
+                } else if (this.clickout) {
+                    this._unselect = this.feature;
+                }
+            },
+            move: function(pixel) {
+                delete this._unselect;
+                if (this.vertex) {
+                    this.dragVertex(this.vertex, pixel);
+                }
+            },
+            up: function() {
+                this.handlers.drag.stopDown = false;
+                if (this._unselect) {
+                    this.unselectFeature(this._unselect);
+                    delete this._unselect;
+                }
+            },
+            done: function(pixel) {
+                if (this.vertex) {
+                    this.dragComplete(this.vertex);
+                }
+            }
+        };
+        var dragOptions = {
+            documentDrag: this.documentDrag,
+            stopDown: false
+        };
+
+        // configure the keyboard handler
+        var keyboardOptions = {
+            keydown: this.handleKeypress
+        };
+        this.handlers = {
+            keyboard: new OpenLayers.Handler.Keyboard(this, keyboardOptions),
+            drag: new OpenLayers.Handler.Drag(this, dragCallbacks, dragOptions)
+        };
+    },
+
+    /**
+     * APIMethod: destroy
+     * Take care of things that are not handled in superclass.
+     */
+    destroy: function() {
+        if (this.map) {
+            this.map.events.un({
+                "removelayer": this.handleMapEvents,
+                "changelayer": this.handleMapEvents,
+                scope: this
+            });
+        }
+        this.layer = null;
+        OpenLayers.Control.prototype.destroy.apply(this, []);
+    },
+
+    /**
+     * APIMethod: activate
+     * Activate the control.
+     * 
+     * Returns:
+     * {Boolean} Successfully activated the control.
+     */
+    activate: function() {
+        this.moveLayerToTop();
+        this.map.events.on({
+            "removelayer": this.handleMapEvents,
+            "changelayer": this.handleMapEvents,
+            scope: this
+        });
+        return (this.handlers.keyboard.activate() &&
+                this.handlers.drag.activate() &&
+                OpenLayers.Control.prototype.activate.apply(this, arguments));
+    },
+
+    /**
+     * APIMethod: deactivate
+     * Deactivate the control.
+     *
+     * Returns: 
+     * {Boolean} Successfully deactivated the control.
+     */
+    deactivate: function() {
+        var deactivated = false;
+        // the return from the controls is unimportant in this case
+        if(OpenLayers.Control.prototype.deactivate.apply(this, arguments)) {
+            this.moveLayerBack();
+            this.map.events.un({
+                "removelayer": this.handleMapEvents,
+                "changelayer": this.handleMapEvents,
+                scope: this
+            });
+            this.layer.removeFeatures(this.vertices, {silent: true});
+            this.layer.removeFeatures(this.virtualVertices, {silent: true});
+            this.vertices = [];
+            this.handlers.drag.deactivate();
+            this.handlers.keyboard.deactivate();
+            var feature = this.feature;
+            if (feature && feature.geometry && feature.layer) {
+                this.unselectFeature(feature);
+            }
+            deactivated = true;
+        }
+        return deactivated;
+    },
+
+    /**
+     * Method: beforeSelectFeature
+     * Called before a feature is selected.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} The feature about to be selected.
+     */
+    beforeSelectFeature: function(feature) {
+        return this.layer.events.triggerEvent(
+            "beforefeaturemodified", {feature: feature}
+        );
+    },
+
+    /**
+     * APIMethod: selectFeature
+     * Select a feature for modification in standalone mode. In non-standalone
+     * mode, this method is called when a feature is selected by clicking.
+     * Register a listener to the beforefeaturemodified event and return false
+     * to prevent feature modification.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} the selected feature.
+     */
+    selectFeature: function(feature) {
+        if (this.feature === feature ||
+           (this.geometryTypes && OpenLayers.Util.indexOf(this.geometryTypes,
+           feature.geometry.CLASS_NAME) == -1)) {
+            return;
+        }
+        if (this.beforeSelectFeature(feature) !== false) {
+            if (this.feature) {
+                this.unselectFeature(this.feature);
+            }
+            this.feature = feature;
+            this.layer.selectedFeatures.push(feature);
+            this.layer.drawFeature(feature, 'select');
+            this.modified = false;
+            this.resetVertices();
+            this.onModificationStart(this.feature);
+        }
+        // keep track of geometry modifications
+        var modified = feature.modified;
+        if (feature.geometry && !(modified && modified.geometry)) {
+            this._originalGeometry = feature.geometry.clone();
+        }
+    },
+
+    /**
+     * APIMethod: unselectFeature
+     * Called when the select feature control unselects a feature.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} The unselected feature.
+     */
+    unselectFeature: function(feature) {
+        this.layer.removeFeatures(this.vertices, {silent: true});
+        this.vertices = [];
+        this.layer.destroyFeatures(this.virtualVertices, {silent: true});
+        this.virtualVertices = [];
+        if(this.dragHandle) {
+            this.layer.destroyFeatures([this.dragHandle], {silent: true});
+            delete this.dragHandle;
+        }
+        if(this.radiusHandle) {
+            this.layer.destroyFeatures([this.radiusHandle], {silent: true});
+            delete this.radiusHandle;
+        }
+        this.layer.drawFeature(this.feature, 'default');
+        this.feature = null;
+        OpenLayers.Util.removeItem(this.layer.selectedFeatures, feature);
+        this.onModificationEnd(feature);
+        this.layer.events.triggerEvent("afterfeaturemodified", {
+            feature: feature,
+            modified: this.modified
+        });
+        this.modified = false;
+    },
+    
+    
+    /**
+     * Method: dragStart
+     * Called by the drag handler before a feature is dragged.  This method is
+     *     used to differentiate between points and vertices
+     *     of higher order geometries.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} The point or vertex about to be
+     *     dragged.
+     */
+    dragStart: function(feature) {
+        var isPoint = feature.geometry.CLASS_NAME ==
+                'OpenLayers.Geometry.Point';
+        if (!this.standalone &&
+                ((!feature._sketch && isPoint) || !feature._sketch)) {
+            if (this.toggle && this.feature === feature) {
+                // mark feature for unselection
+                this._unselect = feature;
+            }
+            this.selectFeature(feature);
+        }
+        if (feature._sketch || isPoint) {
+            // feature is a drag or virtual handle or point
+            this.vertex = feature;
+            this.handlers.drag.stopDown = true;
+        }
+    },
+
+    /**
+     * Method: dragVertex
+     * Called by the drag handler with each drag move of a vertex.
+     *
+     * Parameters:
+     * vertex - {<OpenLayers.Feature.Vector>} The vertex being dragged.
+     * pixel - {<OpenLayers.Pixel>} Pixel location of the mouse event.
+     */
+    dragVertex: function(vertex, pixel) {
+        var pos = this.map.getLonLatFromViewPortPx(pixel);
+        var geom = vertex.geometry;
+        geom.move(pos.lon - geom.x, pos.lat - geom.y);
+        this.modified = true;
+        /**
+         * Five cases:
+         * 1) dragging a simple point
+         * 2) dragging a virtual vertex
+         * 3) dragging a drag handle
+         * 4) dragging a real vertex
+         * 5) dragging a radius handle
+         */
+        if(this.feature.geometry.CLASS_NAME == "OpenLayers.Geometry.Point") {
+            // dragging a simple point
+            this.layer.events.triggerEvent("vertexmodified", {
+                vertex: vertex.geometry,
+                feature: this.feature,
+                pixel: pixel
+            });
+        } else {
+            if(vertex._index) {
+                // dragging a virtual vertex
+                vertex.geometry.parent.addComponent(vertex.geometry,
+                                                    vertex._index);
+                // move from virtual to real vertex
+                delete vertex._index;
+                OpenLayers.Util.removeItem(this.virtualVertices, vertex);
+                this.vertices.push(vertex);
+            } else if(vertex == this.dragHandle) {
+                // dragging a drag handle
+                this.layer.removeFeatures(this.vertices, {silent: true});
+                this.vertices = [];
+                if(this.radiusHandle) {
+                    this.layer.destroyFeatures([this.radiusHandle], {silent: true});
+                    this.radiusHandle = null;
+                }
+            } else if(vertex !== this.radiusHandle) {
+                // dragging a real vertex
+                this.layer.events.triggerEvent("vertexmodified", {
+                    vertex: vertex.geometry,
+                    feature: this.feature,
+                    pixel: pixel
+                });
+            }
+            // dragging a radius handle - no special treatment
+            if(this.virtualVertices.length > 0) {
+                this.layer.destroyFeatures(this.virtualVertices, {silent: true});
+                this.virtualVertices = [];
+            }
+            this.layer.drawFeature(this.feature, this.standalone ? undefined :
+                                            'select');
+        }
+        // keep the vertex on top so it gets the mouseout after dragging
+        // this should be removed in favor of an option to draw under or
+        // maintain node z-index
+        this.layer.drawFeature(vertex);
+    },
+    
+    /**
+     * Method: dragComplete
+     * Called by the drag handler when the feature dragging is complete.
+     *
+     * Parameters:
+     * vertex - {<OpenLayers.Feature.Vector>} The vertex being dragged.
+     */
+    dragComplete: function(vertex) {
+        this.resetVertices();
+        this.setFeatureState();
+        this.onModification(this.feature);
+        this.layer.events.triggerEvent("featuremodified", 
+                                       {feature: this.feature});
+    },
+    
+    /**
+     * Method: setFeatureState
+     * Called when the feature is modified.  If the current state is not
+     *     INSERT or DELETE, the state is set to UPDATE.
+     */
+    setFeatureState: function() {
+        if(this.feature.state != OpenLayers.State.INSERT &&
+           this.feature.state != OpenLayers.State.DELETE) {
+            this.feature.state = OpenLayers.State.UPDATE;
+            if (this.modified && this._originalGeometry) {
+                var feature = this.feature;
+                feature.modified = OpenLayers.Util.extend(feature.modified, {
+                    geometry: this._originalGeometry
+                });
+                delete this._originalGeometry;
+            }
+        }
+    },
+    
+    /**
+     * Method: resetVertices
+     */
+    resetVertices: function() {
+        if(this.vertices.length > 0) {
+            this.layer.removeFeatures(this.vertices, {silent: true});
+            this.vertices = [];
+        }
+        if(this.virtualVertices.length > 0) {
+            this.layer.removeFeatures(this.virtualVertices, {silent: true});
+            this.virtualVertices = [];
+        }
+        if(this.dragHandle) {
+            this.layer.destroyFeatures([this.dragHandle], {silent: true});
+            this.dragHandle = null;
+        }
+        if(this.radiusHandle) {
+            this.layer.destroyFeatures([this.radiusHandle], {silent: true});
+            this.radiusHandle = null;
+        }
+        if(this.feature &&
+           this.feature.geometry.CLASS_NAME != "OpenLayers.Geometry.Point") {
+            if((this.mode & OpenLayers.Control.ModifyFeature.DRAG)) {
+                this.collectDragHandle();
+            }
+            if((this.mode & (OpenLayers.Control.ModifyFeature.ROTATE |
+                             OpenLayers.Control.ModifyFeature.RESIZE))) {
+                this.collectRadiusHandle();
+            }
+            if(this.mode & OpenLayers.Control.ModifyFeature.RESHAPE){
+                // Don't collect vertices when we're resizing
+                if (!(this.mode & OpenLayers.Control.ModifyFeature.RESIZE)){
+                    this.collectVertices();
+                }
+            }
+        }
+    },
+    
+    /**
+     * Method: handleKeypress
+     * Called by the feature handler on keypress.  This is used to delete
+     *     vertices. If the <deleteCode> property is set, vertices will
+     *     be deleted when a feature is selected for modification and
+     *     the mouse is over a vertex.
+     *
+     * Parameters:
+     * evt - {Event} Keypress event.
+     */
+    handleKeypress: function(evt) {
+        var code = evt.keyCode;
+        
+        // check for delete key
+        if(this.feature &&
+           OpenLayers.Util.indexOf(this.deleteCodes, code) != -1) {
+            var vertex = this.layer.getFeatureFromEvent(this.handlers.drag.evt);
+            if (vertex &&
+                    OpenLayers.Util.indexOf(this.vertices, vertex) != -1 &&
+                    !this.handlers.drag.dragging && vertex.geometry.parent) {
+                // remove the vertex
+                vertex.geometry.parent.removeComponent(vertex.geometry);
+                this.layer.events.triggerEvent("vertexremoved", {
+                    vertex: vertex.geometry,
+                    feature: this.feature,
+                    pixel: evt.xy
+                });
+                this.layer.drawFeature(this.feature, this.standalone ?
+                                       undefined : 'select');
+                this.modified = true;
+                this.resetVertices();
+                this.setFeatureState();
+                this.onModification(this.feature);
+                this.layer.events.triggerEvent("featuremodified", 
+                                               {feature: this.feature});
+            }
+        }
+    },
+
+    /**
+     * Method: collectVertices
+     * Collect the vertices from the modifiable feature's geometry and push
+     *     them on to the control's vertices array.
+     */
+    collectVertices: function() {
+        this.vertices = [];
+        this.virtualVertices = [];        
+        var control = this;
+        function collectComponentVertices(geometry) {
+            var i, vertex, component, len;
+            if(geometry.CLASS_NAME == "OpenLayers.Geometry.Point") {
+                vertex = new OpenLayers.Feature.Vector(geometry);
+                vertex._sketch = true;
+                vertex.renderIntent = control.vertexRenderIntent;
+                control.vertices.push(vertex);
+            } else {
+                var numVert = geometry.components.length;
+                if(geometry.CLASS_NAME == "OpenLayers.Geometry.LinearRing") {
+                    numVert -= 1;
+                }
+                for(i=0; i<numVert; ++i) {
+                    component = geometry.components[i];
+                    if(component.CLASS_NAME == "OpenLayers.Geometry.Point") {
+                        vertex = new OpenLayers.Feature.Vector(component);
+                        vertex._sketch = true;
+                        vertex.renderIntent = control.vertexRenderIntent;
+                        control.vertices.push(vertex);
+                    } else {
+                        collectComponentVertices(component);
+                    }
+                }
+                
+                // add virtual vertices in the middle of each edge
+                if (control.createVertices && geometry.CLASS_NAME != "OpenLayers.Geometry.MultiPoint") {
+                    for(i=0, len=geometry.components.length; i<len-1; ++i) {
+                        var prevVertex = geometry.components[i];
+                        var nextVertex = geometry.components[i + 1];
+                        if(prevVertex.CLASS_NAME == "OpenLayers.Geometry.Point" &&
+                           nextVertex.CLASS_NAME == "OpenLayers.Geometry.Point") {
+                            var x = (prevVertex.x + nextVertex.x) / 2;
+                            var y = (prevVertex.y + nextVertex.y) / 2;
+                            var point = new OpenLayers.Feature.Vector(
+                                new OpenLayers.Geometry.Point(x, y),
+                                null, control.virtualStyle
+                            );
+                            // set the virtual parent and intended index
+                            point.geometry.parent = geometry;
+                            point._index = i + 1;
+                            point._sketch = true;
+                            control.virtualVertices.push(point);
+                        }
+                    }
+                }
+            }
+        }
+        collectComponentVertices.call(this, this.feature.geometry);
+        this.layer.addFeatures(this.virtualVertices, {silent: true});
+        this.layer.addFeatures(this.vertices, {silent: true});
+    },
+
+    /**
+     * Method: collectDragHandle
+     * Collect the drag handle for the selected geometry.
+     */
+    collectDragHandle: function() {
+        var geometry = this.feature.geometry;
+        var center = geometry.getBounds().getCenterLonLat();
+        var originGeometry = new OpenLayers.Geometry.Point(
+            center.lon, center.lat
+        );
+        var origin = new OpenLayers.Feature.Vector(originGeometry);
+        originGeometry.move = function(x, y) {
+            OpenLayers.Geometry.Point.prototype.move.call(this, x, y);
+            geometry.move(x, y);
+        };
+        origin._sketch = true;
+        this.dragHandle = origin;
+        this.dragHandle.renderIntent = this.vertexRenderIntent;
+        this.layer.addFeatures([this.dragHandle], {silent: true});
+    },
+
+    /**
+     * Method: collectRadiusHandle
+     * Collect the radius handle for the selected geometry.
+     */
+    collectRadiusHandle: function() {
+        var geometry = this.feature.geometry;
+        var bounds = geometry.getBounds();
+        var center = bounds.getCenterLonLat();
+        var originGeometry = new OpenLayers.Geometry.Point(
+            center.lon, center.lat
+        );
+        var radiusGeometry = new OpenLayers.Geometry.Point(
+            bounds.right, bounds.bottom
+        );
+        var radius = new OpenLayers.Feature.Vector(radiusGeometry);
+        var resize = (this.mode & OpenLayers.Control.ModifyFeature.RESIZE);
+        var reshape = (this.mode & OpenLayers.Control.ModifyFeature.RESHAPE);
+        var rotate = (this.mode & OpenLayers.Control.ModifyFeature.ROTATE);
+
+        radiusGeometry.move = function(x, y) {
+            OpenLayers.Geometry.Point.prototype.move.call(this, x, y);
+            var dx1 = this.x - originGeometry.x;
+            var dy1 = this.y - originGeometry.y;
+            var dx0 = dx1 - x;
+            var dy0 = dy1 - y;
+            if(rotate) {
+                var a0 = Math.atan2(dy0, dx0);
+                var a1 = Math.atan2(dy1, dx1);
+                var angle = a1 - a0;
+                angle *= 180 / Math.PI;
+                geometry.rotate(angle, originGeometry);
+            }
+            if(resize) {
+                var scale, ratio;
+                // 'resize' together with 'reshape' implies that the aspect 
+                // ratio of the geometry will not be preserved whilst resizing 
+                if (reshape) {
+                    scale = dy1 / dy0;
+                    ratio = (dx1 / dx0) / scale;
+                } else {
+                    var l0 = Math.sqrt((dx0 * dx0) + (dy0 * dy0));
+                    var l1 = Math.sqrt((dx1 * dx1) + (dy1 * dy1));
+                    scale = l1 / l0;
+                }
+                geometry.resize(scale, originGeometry, ratio);
+            }
+        };
+        radius._sketch = true;
+        this.radiusHandle = radius;
+        this.radiusHandle.renderIntent = this.vertexRenderIntent;
+        this.layer.addFeatures([this.radiusHandle], {silent: true});
+    },
+
+    /**
+     * Method: setMap
+     * Set the map property for the control and all handlers.
+     *
+     * Parameters:
+     * map - {<OpenLayers.Map>} The control's map.
+     */
+    setMap: function(map) {
+        this.handlers.drag.setMap(map);
+        OpenLayers.Control.prototype.setMap.apply(this, arguments);
+    },
+
+    /**
+     * Method: handleMapEvents
+     * 
+     * Parameters:
+     * evt - {Object}
+     */
+    handleMapEvents: function(evt) {
+        if (evt.type == "removelayer" || evt.property == "order") {
+            this.moveLayerToTop();
+        }
+    },
+
+    /**
+     * Method: moveLayerToTop
+     * Moves the layer for this handler to the top, so mouse events can reach
+     * it.
+     */
+    moveLayerToTop: function() {
+        var index = Math.max(this.map.Z_INDEX_BASE['Feature'] - 1,
+            this.layer.getZIndex()) + 1;
+        this.layer.setZIndex(index);
+        
+    },
+
+    /**
+     * Method: moveLayerBack
+     * Moves the layer back to the position determined by the map's layers
+     * array.
+     */
+    moveLayerBack: function() {
+        var index = this.layer.getZIndex() - 1;
+        if (index >= this.map.Z_INDEX_BASE['Feature']) {
+            this.layer.setZIndex(index);
+        } else {
+            this.map.setLayerZIndex(this.layer,
+                this.map.getLayerIndex(this.layer));
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Control.ModifyFeature"
+});
+
+/**
+ * Constant: RESHAPE
+ * {Integer} Constant used to make the control work in reshape mode
+ */
+OpenLayers.Control.ModifyFeature.RESHAPE = 1;
+/**
+ * Constant: RESIZE
+ * {Integer} Constant used to make the control work in resize mode
+ */
+OpenLayers.Control.ModifyFeature.RESIZE = 2;
+/**
+ * Constant: ROTATE
+ * {Integer} Constant used to make the control work in rotate mode
+ */
+OpenLayers.Control.ModifyFeature.ROTATE = 4;
+/**
+ * Constant: DRAG
+ * {Integer} Constant used to make the control work in drag mode
+ */
+OpenLayers.Control.ModifyFeature.DRAG = 8;
+/* ======================================================================
+    OpenLayers/Layer/Bing.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Layer/XYZ.js
+ */
+
+/** 
+ * Class: OpenLayers.Layer.Bing
+ * Bing layer using direct tile access as provided by Bing Maps REST Services.
+ * See http://msdn.microsoft.com/en-us/library/ff701713.aspx for more
+ * information. Note: Terms of Service compliant use requires the map to be
+ * configured with an <OpenLayers.Control.Attribution> control and the
+ * attribution placed on or near the map.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Layer.XYZ>
+ */
+OpenLayers.Layer.Bing = OpenLayers.Class(OpenLayers.Layer.XYZ, {
+
+    /**
+     * Property: key
+     * {String} API key for Bing maps, get your own key 
+     *     at http://bingmapsportal.com/ .
+     */
+    key: null,
+
+    /**
+     * Property: serverResolutions
+     * {Array} the resolutions provided by the Bing servers.
+     */
+    serverResolutions: [
+        156543.03390625, 78271.516953125, 39135.7584765625,
+        19567.87923828125, 9783.939619140625, 4891.9698095703125,
+        2445.9849047851562, 1222.9924523925781, 611.4962261962891,
+        305.74811309814453, 152.87405654907226, 76.43702827453613,
+        38.218514137268066, 19.109257068634033, 9.554628534317017,
+        4.777314267158508, 2.388657133579254, 1.194328566789627,
+        0.5971642833948135, 0.29858214169740677, 0.14929107084870338,
+        0.07464553542435169
+    ],
+    
+    /**
+     * Property: attributionTemplate
+     * {String}
+     */
+    attributionTemplate: '<span class="olBingAttribution ${type}">' +
+         '<div><a target="_blank" href="http://www.bing.com/maps/">' +
+         '<img src="${logo}" /></a></div>${copyrights}' +
+         '<a style="white-space: nowrap" target="_blank" '+
+         'href="http://www.microsoft.com/maps/product/terms.html">' +
+         'Terms of Use</a></span>',
+
+    /**
+     * Property: metadata
+     * {Object} Metadata for this layer, as returned by the callback script
+     */
+    metadata: null,
+
+    /**
+     * Property: protocolRegex
+     * {RegExp} Regular expression to match and replace http: in bing urls
+     */
+    protocolRegex: /^http:/i,
+    
+    /**
+     * APIProperty: type
+     * {String} The layer identifier.  Any non-birdseye imageryType
+     *     from http://msdn.microsoft.com/en-us/library/ff701716.aspx can be
+     *     used.  Default is "Road".
+     */
+    type: "Road",
+    
+    /**
+     * APIProperty: culture
+     * {String} The culture identifier.  See http://msdn.microsoft.com/en-us/library/ff701709.aspx
+     * for the definition and the possible values.  Default is "en-US".
+     */
+    culture: "en-US",
+    
+    /**
+     * APIProperty: metadataParams
+     * {Object} Optional url parameters for the Get Imagery Metadata request
+     * as described here: http://msdn.microsoft.com/en-us/library/ff701716.aspx
+     */
+    metadataParams: null,
+
+    /** APIProperty: tileOptions
+     *  {Object} optional configuration options for <OpenLayers.Tile> instances
+     *  created by this Layer. Default is
+     *
+     *  (code)
+     *  {crossOriginKeyword: 'anonymous'}
+     *  (end)
+     */
+    tileOptions: null,
+
+    /** APIProperty: protocol
+     *  {String} Protocol to use to fetch Imagery Metadata, tiles and bing logo
+     *  Can be 'http:' 'https:' or ''
+     *
+     *  Warning: tiles may not be available under both HTTP and HTTPS protocols.
+     *  Microsoft approved use of both HTTP and HTTPS urls for tiles. However
+     *  this is undocumented and the Imagery Metadata API always returns HTTP
+     *  urls.
+     *
+     *  Default is '', unless when executed from a file:/// uri, in which case
+     *  it is 'http:'.
+     */
+    protocol: ~window.location.href.indexOf('http') ? '' : 'http:',
+
+    /**
+     * Constructor: OpenLayers.Layer.Bing
+     * Create a new Bing layer.
+     *
+     * Example:
+     * (code)
+     * var road = new OpenLayers.Layer.Bing({
+     *     name: "My Bing Aerial Layer",
+     *     type: "Aerial",
+     *     key: "my-api-key-here",
+     * });
+     * (end)
+     *
+     * Parameters:
+     * options - {Object} Configuration properties for the layer.
+     *
+     * Required configuration properties:
+     * key - {String} Bing Maps API key for your application. Get one at
+     *     http://bingmapsportal.com/.
+     * type - {String} The layer identifier.  Any non-birdseye imageryType
+     *     from http://msdn.microsoft.com/en-us/library/ff701716.aspx can be
+     *     used.
+     *
+     * Any other documented layer properties can be provided in the config object.
+     */
+    initialize: function(options) {
+        options = OpenLayers.Util.applyDefaults({
+            sphericalMercator: true
+        }, options);
+        var name = options.name || "Bing " + (options.type || this.type);
+        
+        var newArgs = [name, null, options];
+        OpenLayers.Layer.XYZ.prototype.initialize.apply(this, newArgs);
+        this.tileOptions = OpenLayers.Util.extend({
+            crossOriginKeyword: 'anonymous'
+        }, this.options.tileOptions);
+        this.loadMetadata(); 
+    },
+
+    /**
+     * Method: loadMetadata
+     */
+    loadMetadata: function() {
+        this._callbackId = "_callback_" + this.id.replace(/\./g, "_");
+        // link the processMetadata method to the global scope and bind it
+        // to this instance
+        window[this._callbackId] = OpenLayers.Function.bind(
+            OpenLayers.Layer.Bing.processMetadata, this
+        );
+        var params = OpenLayers.Util.applyDefaults({
+            key: this.key,
+            jsonp: this._callbackId,
+            include: "ImageryProviders"
+        }, this.metadataParams);
+        var url = this.protocol + "//dev.virtualearth.net/REST/v1/Imagery/Metadata/" +
+            this.type + "?" + OpenLayers.Util.getParameterString(params);
+        var script = document.createElement("script");
+        script.type = "text/javascript";
+        script.src = url;
+        script.id = this._callbackId;
+        document.getElementsByTagName("head")[0].appendChild(script);
+    },
+    
+    /**
+     * Method: initLayer
+     *
+     * Sets layer properties according to the metadata provided by the API
+     */
+    initLayer: function() {
+        var res = this.metadata.resourceSets[0].resources[0];
+        var url = res.imageUrl.replace("{quadkey}", "${quadkey}");
+        url = url.replace("{culture}", this.culture);
+        url = url.replace(this.protocolRegex, this.protocol);
+        this.url = [];
+        for (var i=0; i<res.imageUrlSubdomains.length; ++i) {
+            this.url.push(url.replace("{subdomain}", res.imageUrlSubdomains[i]));
+        }
+        this.addOptions({
+            maxResolution: Math.min(
+                this.serverResolutions[res.zoomMin],
+                this.maxResolution || Number.POSITIVE_INFINITY
+            ),
+            numZoomLevels: Math.min(
+                res.zoomMax + 1 - res.zoomMin, this.numZoomLevels
+            )
+        }, true);
+        if (!this.isBaseLayer) {
+            this.redraw();
+        }
+        this.updateAttribution();
+    },
+    
+    /**
+     * Method: getURL
+     *
+     * Paramters:
+     * bounds - {<OpenLayers.Bounds>}
+     */
+    getURL: function(bounds) {
+        if (!this.url) {
+            return;
+        }
+        var xyz = this.getXYZ(bounds), x = xyz.x, y = xyz.y, z = xyz.z;
+        var quadDigits = [];
+        for (var i = z; i > 0; --i) {
+            var digit = '0';
+            var mask = 1 << (i - 1);
+            if ((x & mask) != 0) {
+                digit++;
+            }
+            if ((y & mask) != 0) {
+                digit++;
+                digit++;
+            }
+            quadDigits.push(digit);
+        }
+        var quadKey = quadDigits.join("");
+        var url = this.selectUrl('' + x + y + z, this.url);
+
+        return OpenLayers.String.format(url, {'quadkey': quadKey});
+    },
+    
+    /**
+     * Method: updateAttribution
+     * Updates the attribution according to the requirements outlined in
+     * http://gis.638310.n2.nabble.com/Bing-imagery-td5789168.html
+     */
+    updateAttribution: function() {
+        var metadata = this.metadata;
+        if (!metadata.resourceSets || !this.map || !this.map.center) {
+            return;
+        }
+        var res = metadata.resourceSets[0].resources[0];
+        var extent = this.map.getExtent().transform(
+            this.map.getProjectionObject(),
+            new OpenLayers.Projection("EPSG:4326")
+        );
+        var providers = res.imageryProviders || [],
+            zoom = OpenLayers.Util.indexOf(this.serverResolutions,
+                                           this.getServerResolution()),
+            copyrights = "", provider, i, ii, j, jj, bbox, coverage;
+        for (i=0,ii=providers.length; i<ii; ++i) {
+            provider = providers[i];
+            for (j=0,jj=provider.coverageAreas.length; j<jj; ++j) {
+                coverage = provider.coverageAreas[j];
+                // axis order provided is Y,X
+                bbox = OpenLayers.Bounds.fromArray(coverage.bbox, true);
+                if (extent.intersectsBounds(bbox) &&
+                        zoom <= coverage.zoomMax && zoom >= coverage.zoomMin) {
+                    copyrights += provider.attribution + " ";
+                }
+            }
+        }
+        var logo = metadata.brandLogoUri.replace(this.protocolRegex, this.protocol);
+        this.attribution = OpenLayers.String.format(this.attributionTemplate, {
+            type: this.type.toLowerCase(),
+            logo: logo,
+            copyrights: copyrights
+        });
+        this.map && this.map.events.triggerEvent("changelayer", {
+            layer: this,
+            property: "attribution"
+        });
+    },
+    
+    /**
+     * Method: setMap
+     */
+    setMap: function() {
+        OpenLayers.Layer.XYZ.prototype.setMap.apply(this, arguments);
+        this.map.events.register("moveend", this, this.updateAttribution);
+    },
+    
+    /**
+     * APIMethod: clone
+     * 
+     * Parameters:
+     * obj - {Object}
+     * 
+     * Returns:
+     * {<OpenLayers.Layer.Bing>} An exact clone of this <OpenLayers.Layer.Bing>
+     */
+    clone: function(obj) {
+        if (obj == null) {
+            obj = new OpenLayers.Layer.Bing(this.options);
+        }
+        //get all additions from superclasses
+        obj = OpenLayers.Layer.XYZ.prototype.clone.apply(this, [obj]);
+        // copy/set any non-init, non-simple values here
+        return obj;
+    },
+    
+    /**
+     * Method: destroy
+     */
+    destroy: function() {
+        this.map &&
+            this.map.events.unregister("moveend", this, this.updateAttribution);
+        OpenLayers.Layer.XYZ.prototype.destroy.apply(this, arguments);
+    },
+    
+    CLASS_NAME: "OpenLayers.Layer.Bing"
+});
+
+/**
+ * Function: OpenLayers.Layer.Bing.processMetadata
+ * This function will be bound to an instance, linked to the global scope with
+ * an id, and called by the JSONP script returned by the API.
+ *
+ * Parameters:
+ * metadata - {Object} metadata as returned by the API
+ */
+OpenLayers.Layer.Bing.processMetadata = function(metadata) {
+    this.metadata = metadata;
+    this.initLayer();
+    var script = document.getElementById(this._callbackId);
+    script.parentNode.removeChild(script);
+    window[this._callbackId] = undefined; // cannot delete from window in IE
+    delete this._callbackId;
+};
+/* ======================================================================
+    OpenLayers/Geometry/MultiLineString.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Geometry/Collection.js
+ * @requires OpenLayers/Geometry/LineString.js
+ */
+
+/**
+ * Class: OpenLayers.Geometry.MultiLineString
+ * A MultiLineString is a geometry with multiple <OpenLayers.Geometry.LineString>
+ * components.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Geometry.Collection>
+ *  - <OpenLayers.Geometry> 
+ */
+OpenLayers.Geometry.MultiLineString = OpenLayers.Class(
+  OpenLayers.Geometry.Collection, {
+
+    /**
+     * Property: componentTypes
+     * {Array(String)} An array of class names representing the types of
+     * components that the collection can include.  A null value means the
+     * component types are not restricted.
+     */
+    componentTypes: ["OpenLayers.Geometry.LineString"],
+
+    /**
+     * Constructor: OpenLayers.Geometry.MultiLineString
+     * Constructor for a MultiLineString Geometry.
+     *
+     * Parameters: 
+     * components - {Array(<OpenLayers.Geometry.LineString>)} 
+     *
+     */
+    
+    /**
+     * Method: split
+     * Use this geometry (the source) to attempt to split a target geometry.
+     * 
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} The target geometry.
+     * options - {Object} Properties of this object will be used to determine
+     *     how the split is conducted.
+     *
+     * Valid options:
+     * mutual - {Boolean} Split the source geometry in addition to the target
+     *     geometry.  Default is false.
+     * edge - {Boolean} Allow splitting when only edges intersect.  Default is
+     *     true.  If false, a vertex on the source must be within the tolerance
+     *     distance of the intersection to be considered a split.
+     * tolerance - {Number} If a non-null value is provided, intersections
+     *     within the tolerance distance of an existing vertex on the source
+     *     will be assumed to occur at the vertex.
+     * 
+     * Returns:
+     * {Array} A list of geometries (of this same type as the target) that
+     *     result from splitting the target with the source geometry.  The
+     *     source and target geometry will remain unmodified.  If no split
+     *     results, null will be returned.  If mutual is true and a split
+     *     results, return will be an array of two arrays - the first will be
+     *     all geometries that result from splitting the source geometry and
+     *     the second will be all geometries that result from splitting the
+     *     target geometry.
+     */
+    split: function(geometry, options) {
+        var results = null;
+        var mutual = options && options.mutual;
+        var splits, sourceLine, sourceLines, sourceSplit, targetSplit;
+        var sourceParts = [];
+        var targetParts = [geometry];
+        for(var i=0, len=this.components.length; i<len; ++i) {
+            sourceLine = this.components[i];
+            sourceSplit = false;
+            for(var j=0; j < targetParts.length; ++j) { 
+                splits = sourceLine.split(targetParts[j], options);
+                if(splits) {
+                    if(mutual) {
+                        sourceLines = splits[0];
+                        for(var k=0, klen=sourceLines.length; k<klen; ++k) {
+                            if(k===0 && sourceParts.length) {
+                                sourceParts[sourceParts.length-1].addComponent(
+                                    sourceLines[k]
+                                );
+                            } else {
+                                sourceParts.push(
+                                    new OpenLayers.Geometry.MultiLineString([
+                                        sourceLines[k]
+                                    ])
+                                );
+                            }
+                        }
+                        sourceSplit = true;
+                        splits = splits[1];
+                    }
+                    if(splits.length) {
+                        // splice in new target parts
+                        splits.unshift(j, 1);
+                        Array.prototype.splice.apply(targetParts, splits);
+                        break;
+                    }
+                }
+            }
+            if(!sourceSplit) {
+                // source line was not hit
+                if(sourceParts.length) {
+                    // add line to existing multi
+                    sourceParts[sourceParts.length-1].addComponent(
+                        sourceLine.clone()
+                    );
+                } else {
+                    // create a fresh multi
+                    sourceParts = [
+                        new OpenLayers.Geometry.MultiLineString(
+                            sourceLine.clone()
+                        )
+                    ];
+                }
+            }
+        }
+        if(sourceParts && sourceParts.length > 1) {
+            sourceSplit = true;
+        } else {
+            sourceParts = [];
+        }
+        if(targetParts && targetParts.length > 1) {
+            targetSplit = true;
+        } else {
+            targetParts = [];
+        }
+        if(sourceSplit || targetSplit) {
+            if(mutual) {
+                results = [sourceParts, targetParts];
+            } else {
+                results = targetParts;
+            }
+        }
+        return results;
+    },
+    
+    /**
+     * Method: splitWith
+     * Split this geometry (the target) with the given geometry (the source).
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} A geometry used to split this
+     *     geometry (the source).
+     * options - {Object} Properties of this object will be used to determine
+     *     how the split is conducted.
+     *
+     * Valid options:
+     * mutual - {Boolean} Split the source geometry in addition to the target
+     *     geometry.  Default is false.
+     * edge - {Boolean} Allow splitting when only edges intersect.  Default is
+     *     true.  If false, a vertex on the source must be within the tolerance
+     *     distance of the intersection to be considered a split.
+     * tolerance - {Number} If a non-null value is provided, intersections
+     *     within the tolerance distance of an existing vertex on the source
+     *     will be assumed to occur at the vertex.
+     * 
+     * Returns:
+     * {Array} A list of geometries (of this same type as the target) that
+     *     result from splitting the target with the source geometry.  The
+     *     source and target geometry will remain unmodified.  If no split
+     *     results, null will be returned.  If mutual is true and a split
+     *     results, return will be an array of two arrays - the first will be
+     *     all geometries that result from splitting the source geometry and
+     *     the second will be all geometries that result from splitting the
+     *     target geometry.
+     */
+    splitWith: function(geometry, options) {
+        var results = null;
+        var mutual = options && options.mutual;
+        var splits, targetLine, sourceLines, sourceSplit, targetSplit, sourceParts, targetParts;
+        if(geometry instanceof OpenLayers.Geometry.LineString) {
+            targetParts = [];
+            sourceParts = [geometry];
+            for(var i=0, len=this.components.length; i<len; ++i) {
+                targetSplit = false;
+                targetLine = this.components[i];
+                for(var j=0; j<sourceParts.length; ++j) {
+                    splits = sourceParts[j].split(targetLine, options);
+                    if(splits) {
+                        if(mutual) {
+                            sourceLines = splits[0];
+                            if(sourceLines.length) {
+                                // splice in new source parts
+                                sourceLines.unshift(j, 1);
+                                Array.prototype.splice.apply(sourceParts, sourceLines);
+                                j += sourceLines.length - 2;
+                            }
+                            splits = splits[1];
+                            if(splits.length === 0) {
+                                splits = [targetLine.clone()];
+                            }
+                        }
+                        for(var k=0, klen=splits.length; k<klen; ++k) {
+                            if(k===0 && targetParts.length) {
+                                targetParts[targetParts.length-1].addComponent(
+                                    splits[k]
+                                );
+                            } else {
+                                targetParts.push(
+                                    new OpenLayers.Geometry.MultiLineString([
+                                        splits[k]
+                                    ])
+                                );
+                            }
+                        }
+                        targetSplit = true;                    
+                    }
+                }
+                if(!targetSplit) {
+                    // target component was not hit
+                    if(targetParts.length) {
+                        // add it to any existing multi-line
+                        targetParts[targetParts.length-1].addComponent(
+                            targetLine.clone()
+                        );
+                    } else {
+                        // or start with a fresh multi-line
+                        targetParts = [
+                            new OpenLayers.Geometry.MultiLineString([
+                                targetLine.clone()
+                            ])
+                        ];
+                    }
+                    
+                }
+            }
+        } else {
+            results = geometry.split(this);
+        }
+        if(sourceParts && sourceParts.length > 1) {
+            sourceSplit = true;
+        } else {
+            sourceParts = [];
+        }
+        if(targetParts && targetParts.length > 1) {
+            targetSplit = true;
+        } else {
+            targetParts = [];
+        }
+        if(sourceSplit || targetSplit) {
+            if(mutual) {
+                results = [sourceParts, targetParts];
+            } else {
+                results = targetParts;
+            }
+        }
+        return results;
+    },
+
+    CLASS_NAME: "OpenLayers.Geometry.MultiLineString"
+});
+/* ======================================================================
+    OpenLayers/Format.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Util.js
+ */
+
+/**
+ * Class: OpenLayers.Format
+ * Base class for format reading/writing a variety of formats.  Subclasses
+ *     of OpenLayers.Format are expected to have read and write methods.
+ */
+OpenLayers.Format = OpenLayers.Class({
+    
+    /**
+     * Property: options
+     * {Object} A reference to options passed to the constructor.
+     */
+    options: null,
+    
+    /**
+     * APIProperty: externalProjection
+     * {<OpenLayers.Projection>} When passed a externalProjection and
+     *     internalProjection, the format will reproject the geometries it
+     *     reads or writes. The externalProjection is the projection used by
+     *     the content which is passed into read or which comes out of write.
+     *     In order to reproject, a projection transformation function for the
+     *     specified projections must be available. This support may be 
+     *     provided via proj4js or via a custom transformation function. See
+     *     {<OpenLayers.Projection.addTransform>} for more information on
+     *     custom transformations.
+     */
+    externalProjection: null,
+
+    /**
+     * APIProperty: internalProjection
+     * {<OpenLayers.Projection>} When passed a externalProjection and
+     *     internalProjection, the format will reproject the geometries it
+     *     reads or writes. The internalProjection is the projection used by
+     *     the geometries which are returned by read or which are passed into
+     *     write.  In order to reproject, a projection transformation function
+     *     for the specified projections must be available. This support may be
+     *     provided via proj4js or via a custom transformation function. See
+     *     {<OpenLayers.Projection.addTransform>} for more information on
+     *     custom transformations.
+     */
+    internalProjection: null,
+
+    /**
+     * APIProperty: data
+     * {Object} When <keepData> is true, this is the parsed string sent to
+     *     <read>.
+     */
+    data: null,
+
+    /**
+     * APIProperty: keepData
+     * {Object} Maintain a reference (<data>) to the most recently read data.
+     *     Default is false.
+     */
+    keepData: false,
+
+    /**
+     * Constructor: OpenLayers.Format
+     * Instances of this class are not useful.  See one of the subclasses.
+     *
+     * Parameters:
+     * options - {Object} An optional object with properties to set on the
+     *           format
+     *
+     * Valid options:
+     * keepData - {Boolean} If true, upon <read>, the data property will be
+     *     set to the parsed object (e.g. the json or xml object).
+     *
+     * Returns:
+     * An instance of OpenLayers.Format
+     */
+    initialize: function(options) {
+        OpenLayers.Util.extend(this, options);
+        this.options = options;
+    },
+    
+    /**
+     * APIMethod: destroy
+     * Clean up.
+     */
+    destroy: function() {
+    },
+
+    /**
+     * Method: read
+     * Read data from a string, and return an object whose type depends on the
+     * subclass. 
+     * 
+     * Parameters:
+     * data - {string} Data to read/parse.
+     *
+     * Returns:
+     * Depends on the subclass
+     */
+    read: function(data) {
+        throw new Error('Read not implemented.');
+    },
+    
+    /**
+     * Method: write
+     * Accept an object, and return a string. 
+     *
+     * Parameters:
+     * object - {Object} Object to be serialized
+     *
+     * Returns:
+     * {String} A string representation of the object.
+     */
+    write: function(object) {
+        throw new Error('Write not implemented.');
+    },
+
+    CLASS_NAME: "OpenLayers.Format"
+});     
+/* ======================================================================
+    OpenLayers/Format/XML.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format.js
+ */
+
+/**
+ * Class: OpenLayers.Format.XML
+ * Read and write XML.  For cross-browser XML generation, use methods on an
+ *     instance of the XML format class instead of on <code>document<end>.
+ *     The DOM creation and traversing methods exposed here all mimic the
+ *     W3C XML DOM methods.  Create a new parser with the
+ *     <OpenLayers.Format.XML> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Format>
+ */
+OpenLayers.Format.XML = OpenLayers.Class(OpenLayers.Format, {
+    
+    /**
+     * Property: namespaces
+     * {Object} Mapping of namespace aliases to namespace URIs.  Properties
+     *     of this object should not be set individually.  Read-only.  All
+     *     XML subclasses should have their own namespaces object.  Use
+     *     <setNamespace> to add or set a namespace alias after construction.
+     */
+    namespaces: null,
+    
+    /**
+     * Property: namespaceAlias
+     * {Object} Mapping of namespace URI to namespace alias.  This object
+     *     is read-only.  Use <setNamespace> to add or set a namespace alias.
+     */
+    namespaceAlias: null,
+    
+    /**
+     * Property: defaultPrefix
+     * {String} The default namespace alias for creating element nodes.
+     */
+    defaultPrefix: null,
+    
+    /**
+     * Property: readers
+     * Contains public functions, grouped by namespace prefix, that will
+     *     be applied when a namespaced node is found matching the function
+     *     name.  The function will be applied in the scope of this parser
+     *     with two arguments: the node being read and a context object passed
+     *     from the parent.
+     */
+    readers: {},
+    
+    /**
+     * Property: writers
+     * As a compliment to the <readers> property, this structure contains public
+     *     writing functions grouped by namespace alias and named like the
+     *     node names they produce.
+     */
+    writers: {},
+
+    /**
+     * Property: xmldom
+     * {XMLDom} If this browser uses ActiveX, this will be set to a XMLDOM
+     *     object.  It is not intended to be a browser sniffing property.
+     *     Instead, the xmldom property is used instead of <code>document<end>
+     *     where namespaced node creation methods are not supported. In all
+     *     other browsers, this remains null.
+     */
+    xmldom: null,
+
+    /**
+     * Constructor: OpenLayers.Format.XML
+     * Construct an XML parser.  The parser is used to read and write XML.
+     *     Reading XML from a string returns a DOM element.  Writing XML from
+     *     a DOM element returns a string.
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on
+     *     the object.
+     */
+    initialize: function(options) {
+        if(window.ActiveXObject) {
+            this.xmldom = new ActiveXObject("Microsoft.XMLDOM");
+        }
+        OpenLayers.Format.prototype.initialize.apply(this, [options]);
+        // clone the namespace object and set all namespace aliases
+        this.namespaces = OpenLayers.Util.extend({}, this.namespaces);
+        this.namespaceAlias = {};
+        for(var alias in this.namespaces) {
+            this.namespaceAlias[this.namespaces[alias]] = alias;
+        }
+    },
+    
+    /**
+     * APIMethod: destroy
+     * Clean up.
+     */
+    destroy: function() {
+        this.xmldom = null;
+        OpenLayers.Format.prototype.destroy.apply(this, arguments);
+    },
+    
+    /**
+     * Method: setNamespace
+     * Set a namespace alias and URI for the format.
+     *
+     * Parameters:
+     * alias - {String} The namespace alias (prefix).
+     * uri - {String} The namespace URI.
+     */
+    setNamespace: function(alias, uri) {
+        this.namespaces[alias] = uri;
+        this.namespaceAlias[uri] = alias;
+    },
+
+    /**
+     * APIMethod: read
+     * Deserialize a XML string and return a DOM node.
+     *
+     * Parameters:
+     * text - {String} A XML string
+     
+     * Returns:
+     * {DOMElement} A DOM node
+     */
+    read: function(text) {
+        var index = text.indexOf('<');
+        if(index > 0) {
+            text = text.substring(index);
+        }
+        var node = OpenLayers.Util.Try(
+            OpenLayers.Function.bind((
+                function() {
+                    var xmldom;
+                    /**
+                     * Since we want to be able to call this method on the prototype
+                     * itself, this.xmldom may not exist even if in IE.
+                     */
+                    if(window.ActiveXObject && !this.xmldom) {
+                        xmldom = new ActiveXObject("Microsoft.XMLDOM");
+                    } else {
+                        xmldom = this.xmldom;
+                        
+                    }
+                    xmldom.loadXML(text);
+                    return xmldom;
+                }
+            ), this),
+            function() {
+                return new DOMParser().parseFromString(text, 'text/xml');
+            },
+            function() {
+                var req = new XMLHttpRequest();
+                req.open("GET", "data:" + "text/xml" +
+                         ";charset=utf-8," + encodeURIComponent(text), false);
+                if(req.overrideMimeType) {
+                    req.overrideMimeType("text/xml");
+                }
+                req.send(null);
+                return req.responseXML;
+            }
+        );
+
+        if(this.keepData) {
+            this.data = node;
+        }
+
+        return node;
+    },
+
+    /**
+     * APIMethod: write
+     * Serialize a DOM node into a XML string.
+     * 
+     * Parameters:
+     * node - {DOMElement} A DOM node.
+     *
+     * Returns:
+     * {String} The XML string representation of the input node.
+     */
+    write: function(node) {
+        var data;
+        if(this.xmldom) {
+            data = node.xml;
+        } else {
+            var serializer = new XMLSerializer();
+            if (node.nodeType == 1) {
+                // Add nodes to a document before serializing. Everything else
+                // is serialized as is. This may need more work. See #1218 .
+                var doc = document.implementation.createDocument("", "", null);
+                if (doc.importNode) {
+                    node = doc.importNode(node, true);
+                }
+                doc.appendChild(node);
+                data = serializer.serializeToString(doc);
+            } else {
+                data = serializer.serializeToString(node);
+            }
+        }
+        return data;
+    },
+
+    /**
+     * APIMethod: createElementNS
+     * Create a new element with namespace.  This node can be appended to
+     *     another node with the standard node.appendChild method.  For
+     *     cross-browser support, this method must be used instead of
+     *     document.createElementNS.
+     *
+     * Parameters:
+     * uri - {String} Namespace URI for the element.
+     * name - {String} The qualified name of the element (prefix:localname).
+     * 
+     * Returns:
+     * {Element} A DOM element with namespace.
+     */
+    createElementNS: function(uri, name) {
+        var element;
+        if(this.xmldom) {
+            if(typeof uri == "string") {
+                element = this.xmldom.createNode(1, name, uri);
+            } else {
+                element = this.xmldom.createNode(1, name, "");
+            }
+        } else {
+            element = document.createElementNS(uri, name);
+        }
+        return element;
+    },
+
+    /**
+     * APIMethod: createDocumentFragment
+     * Create a document fragment node that can be appended to another node
+     *     created by createElementNS.  This will call 
+     *     document.createDocumentFragment outside of IE.  In IE, the ActiveX
+     *     object's createDocumentFragment method is used.
+     *
+     * Returns:
+     * {Element} A document fragment.
+     */
+    createDocumentFragment: function() {
+        var element;
+        if (this.xmldom) {
+            element = this.xmldom.createDocumentFragment();
+        } else {
+            element = document.createDocumentFragment();
+        }
+        return element;
+    },
+
+    /**
+     * APIMethod: createTextNode
+     * Create a text node.  This node can be appended to another node with
+     *     the standard node.appendChild method.  For cross-browser support,
+     *     this method must be used instead of document.createTextNode.
+     * 
+     * Parameters:
+     * text - {String} The text of the node.
+     * 
+     * Returns: 
+     * {DOMElement} A DOM text node.
+     */
+    createTextNode: function(text) {
+        var node;
+        if (typeof text !== "string") {
+            text = String(text);
+        }
+        if(this.xmldom) {
+            node = this.xmldom.createTextNode(text);
+        } else {
+            node = document.createTextNode(text);
+        }
+        return node;
+    },
+
+    /**
+     * APIMethod: getElementsByTagNameNS
+     * Get a list of elements on a node given the namespace URI and local name.
+     *     To return all nodes in a given namespace, use '*' for the name
+     *     argument.  To return all nodes of a given (local) name, regardless
+     *     of namespace, use '*' for the uri argument.
+     * 
+     * Parameters:
+     * node - {Element} Node on which to search for other nodes.
+     * uri - {String} Namespace URI.
+     * name - {String} Local name of the tag (without the prefix).
+     * 
+     * Returns:
+     * {NodeList} A node list or array of elements.
+     */
+    getElementsByTagNameNS: function(node, uri, name) {
+        var elements = [];
+        if(node.getElementsByTagNameNS) {
+            elements = node.getElementsByTagNameNS(uri, name);
+        } else {
+            // brute force method
+            var allNodes = node.getElementsByTagName("*");
+            var potentialNode, fullName;
+            for(var i=0, len=allNodes.length; i<len; ++i) {
+                potentialNode = allNodes[i];
+                fullName = (potentialNode.prefix) ?
+                           (potentialNode.prefix + ":" + name) : name;
+                if((name == "*") || (fullName == potentialNode.nodeName)) {
+                    if((uri == "*") || (uri == potentialNode.namespaceURI)) {
+                        elements.push(potentialNode);
+                    }
+                }
+            }
+        }
+        return elements;
+    },
+
+    /**
+     * APIMethod: getAttributeNodeNS
+     * Get an attribute node given the namespace URI and local name.
+     * 
+     * Parameters:
+     * node - {Element} Node on which to search for attribute nodes.
+     * uri - {String} Namespace URI.
+     * name - {String} Local name of the attribute (without the prefix).
+     * 
+     * Returns:
+     * {DOMElement} An attribute node or null if none found.
+     */
+    getAttributeNodeNS: function(node, uri, name) {
+        var attributeNode = null;
+        if(node.getAttributeNodeNS) {
+            attributeNode = node.getAttributeNodeNS(uri, name);
+        } else {
+            var attributes = node.attributes;
+            var potentialNode, fullName;
+            for(var i=0, len=attributes.length; i<len; ++i) {
+                potentialNode = attributes[i];
+                if(potentialNode.namespaceURI == uri) {
+                    fullName = (potentialNode.prefix) ?
+                               (potentialNode.prefix + ":" + name) : name;
+                    if(fullName == potentialNode.nodeName) {
+                        attributeNode = potentialNode;
+                        break;
+                    }
+                }
+            }
+        }
+        return attributeNode;
+    },
+
+    /**
+     * APIMethod: getAttributeNS
+     * Get an attribute value given the namespace URI and local name.
+     * 
+     * Parameters:
+     * node - {Element} Node on which to search for an attribute.
+     * uri - {String} Namespace URI.
+     * name - {String} Local name of the attribute (without the prefix).
+     * 
+     * Returns:
+     * {String} An attribute value or and empty string if none found.
+     */
+    getAttributeNS: function(node, uri, name) {
+        var attributeValue = "";
+        if(node.getAttributeNS) {
+            attributeValue = node.getAttributeNS(uri, name) || "";
+        } else {
+            var attributeNode = this.getAttributeNodeNS(node, uri, name);
+            if(attributeNode) {
+                attributeValue = attributeNode.nodeValue;
+            }
+        }
+        return attributeValue;
+    },
+    
+    /**
+     * APIMethod: getChildValue
+     * Get the textual value of the node if it exists, or return an
+     *     optional default string.  Returns an empty string if no first child
+     *     exists and no default value is supplied.
+     *
+     * Parameters:
+     * node - {DOMElement} The element used to look for a first child value.
+     * def - {String} Optional string to return in the event that no
+     *     first child value exists.
+     *
+     * Returns:
+     * {String} The value of the first child of the given node.
+     */
+    getChildValue: function(node, def) {
+        var value = def || "";
+        if(node) {
+            for(var child=node.firstChild; child; child=child.nextSibling) {
+                switch(child.nodeType) {
+                    case 3: // text node
+                    case 4: // cdata section
+                        value += child.nodeValue;
+                }
+            }
+        }
+        return value;
+    },
+
+    /**
+     * APIMethod: isSimpleContent
+     * Test if the given node has only simple content (i.e. no child element
+     *     nodes).
+     *
+     * Parameters:
+     * node - {DOMElement} An element node.
+     *
+     * Returns:
+     * {Boolean} The node has no child element nodes (nodes of type 1). 
+     */
+    isSimpleContent: function(node) {
+        var simple = true;
+        for(var child=node.firstChild; child; child=child.nextSibling) {
+            if(child.nodeType === 1) {
+                simple = false;
+                break;
+            }
+        }
+        return simple;
+    },
+    
+    /**
+     * APIMethod: contentType
+     * Determine the content type for a given node.
+     *
+     * Parameters:
+     * node - {DOMElement}
+     *
+     * Returns:
+     * {Integer} One of OpenLayers.Format.XML.CONTENT_TYPE.{EMPTY,SIMPLE,COMPLEX,MIXED}
+     *     if the node has no, simple, complex, or mixed content.
+     */
+    contentType: function(node) {
+        var simple = false,
+            complex = false;
+            
+        var type = OpenLayers.Format.XML.CONTENT_TYPE.EMPTY;
+
+        for(var child=node.firstChild; child; child=child.nextSibling) {
+            switch(child.nodeType) {
+                case 1: // element
+                    complex = true;
+                    break;
+                case 8: // comment
+                    break;
+                default:
+                    simple = true;
+            }
+            if(complex && simple) {
+                break;
+            }
+        }
+        
+        if(complex && simple) {
+            type = OpenLayers.Format.XML.CONTENT_TYPE.MIXED;
+        } else if(complex) {
+            return OpenLayers.Format.XML.CONTENT_TYPE.COMPLEX;
+        } else if(simple) {
+            return OpenLayers.Format.XML.CONTENT_TYPE.SIMPLE;
+        }
+        return type;
+    },
+
+    /**
+     * APIMethod: hasAttributeNS
+     * Determine whether a node has a particular attribute matching the given
+     *     name and namespace.
+     * 
+     * Parameters:
+     * node - {Element} Node on which to search for an attribute.
+     * uri - {String} Namespace URI.
+     * name - {String} Local name of the attribute (without the prefix).
+     * 
+     * Returns:
+     * {Boolean} The node has an attribute matching the name and namespace.
+     */
+    hasAttributeNS: function(node, uri, name) {
+        var found = false;
+        if(node.hasAttributeNS) {
+            found = node.hasAttributeNS(uri, name);
+        } else {
+            found = !!this.getAttributeNodeNS(node, uri, name);
+        }
+        return found;
+    },
+    
+    /**
+     * APIMethod: setAttributeNS
+     * Adds a new attribute or changes the value of an attribute with the given
+     *     namespace and name.
+     *
+     * Parameters:
+     * node - {Element} Element node on which to set the attribute.
+     * uri - {String} Namespace URI for the attribute.
+     * name - {String} Qualified name (prefix:localname) for the attribute.
+     * value - {String} Attribute value.
+     */
+    setAttributeNS: function(node, uri, name, value) {
+        if(node.setAttributeNS) {
+            node.setAttributeNS(uri, name, value);
+        } else {
+            if(this.xmldom) {
+                if(uri) {
+                    var attribute = node.ownerDocument.createNode(
+                        2, name, uri
+                    );
+                    attribute.nodeValue = value;
+                    node.setAttributeNode(attribute);
+                } else {
+                    node.setAttribute(name, value);
+                }
+            } else {
+                throw "setAttributeNS not implemented";
+            }
+        }
+    },
+
+    /**
+     * Method: createElementNSPlus
+     * Shorthand for creating namespaced elements with optional attributes and
+     *     child text nodes.
+     *
+     * Parameters:
+     * name - {String} The qualified node name.
+     * options - {Object} Optional object for node configuration.
+     *
+     * Valid options:
+     * uri - {String} Optional namespace uri for the element - supply a prefix
+     *     instead if the namespace uri is a property of the format's namespace
+     *     object.
+     * attributes - {Object} Optional attributes to be set using the
+     *     <setAttributes> method.
+     * value - {String} Optional text to be appended as a text node.
+     *
+     * Returns:
+     * {Element} An element node.
+     */
+    createElementNSPlus: function(name, options) {
+        options = options || {};
+        // order of prefix preference
+        // 1. in the uri option
+        // 2. in the prefix option
+        // 3. in the qualified name
+        // 4. from the defaultPrefix
+        var uri = options.uri || this.namespaces[options.prefix];
+        if(!uri) {
+            var loc = name.indexOf(":");
+            uri = this.namespaces[name.substring(0, loc)];
+        }
+        if(!uri) {
+            uri = this.namespaces[this.defaultPrefix];
+        }
+        var node = this.createElementNS(uri, name);
+        if(options.attributes) {
+            this.setAttributes(node, options.attributes);
+        }
+        var value = options.value;
+        if(value != null) {
+            node.appendChild(this.createTextNode(value));
+        }
+        return node;
+    },
+    
+    /**
+     * Method: setAttributes
+     * Set multiple attributes given key value pairs from an object.
+     *
+     * Parameters:
+     * node - {Element} An element node.
+     * obj - {Object || Array} An object whose properties represent attribute
+     *     names and values represent attribute values.  If an attribute name
+     *     is a qualified name ("prefix:local"), the prefix will be looked up
+     *     in the parsers {namespaces} object.  If the prefix is found,
+     *     setAttributeNS will be used instead of setAttribute.
+     */
+    setAttributes: function(node, obj) {
+        var value, uri;
+        for(var name in obj) {
+            if(obj[name] != null && obj[name].toString) {
+                value = obj[name].toString();
+                // check for qualified attribute name ("prefix:local")
+                uri = this.namespaces[name.substring(0, name.indexOf(":"))] || null;
+                this.setAttributeNS(node, uri, name, value);
+            }
+        }
+    },
+
+    /**
+     * Method: readNode
+     * Shorthand for applying one of the named readers given the node
+     *     namespace and local name.  Readers take two args (node, obj) and
+     *     generally extend or modify the second.
+     *
+     * Parameters:
+     * node - {DOMElement} The node to be read (required).
+     * obj - {Object} The object to be modified (optional).
+     *
+     * Returns:
+     * {Object} The input object, modified (or a new one if none was provided).
+     */
+    readNode: function(node, obj) {
+        if(!obj) {
+            obj = {};
+        }
+        var group = this.readers[node.namespaceURI ? this.namespaceAlias[node.namespaceURI]: this.defaultPrefix];
+        if(group) {
+            var local = node.localName || node.nodeName.split(":").pop();
+            var reader = group[local] || group["*"];
+            if(reader) {
+                reader.apply(this, [node, obj]);
+            }
+        }
+        return obj;
+    },
+
+    /**
+     * Method: readChildNodes
+     * Shorthand for applying the named readers to all children of a node.
+     *     For each child of type 1 (element), <readSelf> is called.
+     *
+     * Parameters:
+     * node - {DOMElement} The node to be read (required).
+     * obj - {Object} The object to be modified (optional).
+     *
+     * Returns:
+     * {Object} The input object, modified.
+     */
+    readChildNodes: function(node, obj) {
+        if(!obj) {
+            obj = {};
+        }
+        var children = node.childNodes;
+        var child;
+        for(var i=0, len=children.length; i<len; ++i) {
+            child = children[i];
+            if(child.nodeType == 1) {
+                this.readNode(child, obj);
+            }
+        }
+        return obj;
+    },
+
+    /**
+     * Method: writeNode
+     * Shorthand for applying one of the named writers and appending the
+     *     results to a node.  If a qualified name is not provided for the
+     *     second argument (and a local name is used instead), the namespace
+     *     of the parent node will be assumed.
+     *
+     * Parameters:
+     * name - {String} The name of a node to generate.  If a qualified name
+     *     (e.g. "pre:Name") is used, the namespace prefix is assumed to be
+     *     in the <writers> group.  If a local name is used (e.g. "Name") then
+     *     the namespace of the parent is assumed.  If a local name is used
+     *     and no parent is supplied, then the default namespace is assumed.
+     * obj - {Object} Structure containing data for the writer.
+     * parent - {DOMElement} Result will be appended to this node.  If no parent
+     *     is supplied, the node will not be appended to anything.
+     *
+     * Returns:
+     * {DOMElement} The child node.
+     */
+    writeNode: function(name, obj, parent) {
+        var prefix, local;
+        var split = name.indexOf(":");
+        if(split > 0) {
+            prefix = name.substring(0, split);
+            local = name.substring(split + 1);
+        } else {
+            if(parent) {
+                prefix = this.namespaceAlias[parent.namespaceURI];
+            } else {
+                prefix = this.defaultPrefix;
+            }
+            local = name;
+        }
+        var child = this.writers[prefix][local].apply(this, [obj]);
+        if(parent) {
+            parent.appendChild(child);
+        }
+        return child;
+    },
+
+    /**
+     * APIMethod: getChildEl
+     * Get the first child element.  Optionally only return the first child
+     *     if it matches the given name and namespace URI.
+     *
+     * Parameters:
+     * node - {DOMElement} The parent node.
+     * name - {String} Optional node name (local) to search for.
+     * uri - {String} Optional namespace URI to search for.
+     *
+     * Returns:
+     * {DOMElement} The first child.  Returns null if no element is found, if
+     *     something significant besides an element is found, or if the element
+     *     found does not match the optional name and uri.
+     */
+    getChildEl: function(node, name, uri) {
+        return node && this.getThisOrNextEl(node.firstChild, name, uri);
+    },
+    
+    /**
+     * APIMethod: getNextEl
+     * Get the next sibling element.  Optionally get the first sibling only
+     *     if it matches the given local name and namespace URI.
+     *
+     * Parameters:
+     * node - {DOMElement} The node.
+     * name - {String} Optional local name of the sibling to search for.
+     * uri - {String} Optional namespace URI of the sibling to search for.
+     *
+     * Returns:
+     * {DOMElement} The next sibling element.  Returns null if no element is
+     *     found, something significant besides an element is found, or the
+     *     found element does not match the optional name and uri.
+     */
+    getNextEl: function(node, name, uri) {
+        return node && this.getThisOrNextEl(node.nextSibling, name, uri);
+    },
+    
+    /**
+     * Method: getThisOrNextEl
+     * Return this node or the next element node.  Optionally get the first
+     *     sibling with the given local name or namespace URI.
+     *
+     * Parameters:
+     * node - {DOMElement} The node.
+     * name - {String} Optional local name of the sibling to search for.
+     * uri - {String} Optional namespace URI of the sibling to search for.
+     *
+     * Returns:
+     * {DOMElement} The next sibling element.  Returns null if no element is
+     *     found, something significant besides an element is found, or the
+     *     found element does not match the query.
+     */
+    getThisOrNextEl: function(node, name, uri) {
+        outer: for(var sibling=node; sibling; sibling=sibling.nextSibling) {
+            switch(sibling.nodeType) {
+                case 1: // Element
+                    if((!name || name === (sibling.localName || sibling.nodeName.split(":").pop())) &&
+                       (!uri || uri === sibling.namespaceURI)) {
+                        // matches
+                        break outer;
+                    }
+                    sibling = null;
+                    break outer;
+                case 3: // Text
+                    if(/^\s*$/.test(sibling.nodeValue)) {
+                        break;
+                    }
+                case 4: // CDATA
+                case 6: // ENTITY_NODE
+                case 12: // NOTATION_NODE
+                case 10: // DOCUMENT_TYPE_NODE
+                case 11: // DOCUMENT_FRAGMENT_NODE
+                    sibling = null;
+                    break outer;
+            } // ignore comments and processing instructions
+        }
+        return sibling || null;
+    },
+    
+    /**
+     * APIMethod: lookupNamespaceURI
+     * Takes a prefix and returns the namespace URI associated with it on the given
+     *     node if found (and null if not). Supplying null for the prefix will
+     *     return the default namespace.
+     *
+     * For browsers that support it, this calls the native lookupNamesapceURI
+     *     function.  In other browsers, this is an implementation of
+     *     http://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespaceURI.
+     *
+     * For browsers that don't support the attribute.ownerElement property, this
+     *     method cannot be called on attribute nodes.
+     *     
+     * Parameters:
+     * node - {DOMElement} The node from which to start looking.
+     * prefix - {String} The prefix to lookup or null to lookup the default namespace.
+     * 
+     * Returns:
+     * {String} The namespace URI for the given prefix.  Returns null if the prefix
+     *     cannot be found or the node is the wrong type.
+     */
+    lookupNamespaceURI: function(node, prefix) {
+        var uri = null;
+        if(node) {
+            if(node.lookupNamespaceURI) {
+                uri = node.lookupNamespaceURI(prefix);
+            } else {
+                outer: switch(node.nodeType) {
+                    case 1: // ELEMENT_NODE
+                        if(node.namespaceURI !== null && node.prefix === prefix) {
+                            uri = node.namespaceURI;
+                            break outer;
+                        }
+                        var len = node.attributes.length;
+                        if(len) {
+                            var attr;
+                            for(var i=0; i<len; ++i) {
+                                attr = node.attributes[i];
+                                if(attr.prefix === "xmlns" && attr.name === "xmlns:" + prefix) {
+                                    uri = attr.value || null;
+                                    break outer;
+                                } else if(attr.name === "xmlns" && prefix === null) {
+                                    uri = attr.value || null;
+                                    break outer;
+                                }
+                            }
+                        }
+                        uri = this.lookupNamespaceURI(node.parentNode, prefix);
+                        break outer;
+                    case 2: // ATTRIBUTE_NODE
+                        uri = this.lookupNamespaceURI(node.ownerElement, prefix);
+                        break outer;
+                    case 9: // DOCUMENT_NODE
+                        uri = this.lookupNamespaceURI(node.documentElement, prefix);
+                        break outer;
+                    case 6: // ENTITY_NODE
+                    case 12: // NOTATION_NODE
+                    case 10: // DOCUMENT_TYPE_NODE
+                    case 11: // DOCUMENT_FRAGMENT_NODE
+                        break outer;
+                    default: 
+                        // TEXT_NODE (3), CDATA_SECTION_NODE (4), ENTITY_REFERENCE_NODE (5),
+                        // PROCESSING_INSTRUCTION_NODE (7), COMMENT_NODE (8)
+                        uri =  this.lookupNamespaceURI(node.parentNode, prefix);
+                        break outer;
+                }
+            }
+        }
+        return uri;
+    },
+    
+    /**
+     * Method: getXMLDoc
+     * Get an XML document for nodes that are not supported in HTML (e.g.
+     * createCDATASection). On IE, this will either return an existing or
+     * create a new <xmldom> on the instance. On other browsers, this will
+     * either return an existing or create a new shared document (see
+     * <OpenLayers.Format.XML.document>).
+     *
+     * Returns:
+     * {XMLDocument}
+     */
+    getXMLDoc: function() {
+        if (!OpenLayers.Format.XML.document && !this.xmldom) {
+            if (document.implementation && document.implementation.createDocument) {
+                OpenLayers.Format.XML.document =
+                    document.implementation.createDocument("", "", null);
+            } else if (!this.xmldom && window.ActiveXObject) {
+                this.xmldom = new ActiveXObject("Microsoft.XMLDOM");
+            }
+        }
+        return OpenLayers.Format.XML.document || this.xmldom;
+    },
+
+    CLASS_NAME: "OpenLayers.Format.XML" 
+
+});     
+
+OpenLayers.Format.XML.CONTENT_TYPE = {EMPTY: 0, SIMPLE: 1, COMPLEX: 2, MIXED: 3};
+
+/**
+ * APIFunction: OpenLayers.Format.XML.lookupNamespaceURI
+ * Takes a prefix and returns the namespace URI associated with it on the given
+ *     node if found (and null if not). Supplying null for the prefix will
+ *     return the default namespace.
+ *
+ * For browsers that support it, this calls the native lookupNamesapceURI
+ *     function.  In other browsers, this is an implementation of
+ *     http://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespaceURI.
+ *
+ * For browsers that don't support the attribute.ownerElement property, this
+ *     method cannot be called on attribute nodes.
+ *     
+ * Parameters:
+ * node - {DOMElement} The node from which to start looking.
+ * prefix - {String} The prefix to lookup or null to lookup the default namespace.
+ * 
+ * Returns:
+ * {String} The namespace URI for the given prefix.  Returns null if the prefix
+ *     cannot be found or the node is the wrong type.
+ */
+OpenLayers.Format.XML.lookupNamespaceURI = OpenLayers.Function.bind(
+    OpenLayers.Format.XML.prototype.lookupNamespaceURI,
+    OpenLayers.Format.XML.prototype
+);
+
+/**
+ * Property: OpenLayers.Format.XML.document
+ * {XMLDocument} XML document to reuse for creating non-HTML compliant nodes,
+ * like document.createCDATASection.
+ */
+OpenLayers.Format.XML.document = null;
+/* ======================================================================
+    OpenLayers/Format/OGCExceptionReport.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format/XML.js
+ */
+
+/**
+ * Class: OpenLayers.Format.OGCExceptionReport
+ * Class to read exception reports for various OGC services and versions.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Format.XML>
+ */
+OpenLayers.Format.OGCExceptionReport = OpenLayers.Class(OpenLayers.Format.XML, {
+
+    /**
+     * Property: namespaces
+     * {Object} Mapping of namespace aliases to namespace URIs.
+     */
+    namespaces: {
+        ogc: "http://www.opengis.net/ogc"
+    },
+
+    /**
+     * Property: regExes
+     * Compiled regular expressions for manipulating strings.
+     */
+    regExes: {
+        trimSpace: (/^\s*|\s*$/g),
+        removeSpace: (/\s*/g),
+        splitSpace: (/\s+/),
+        trimComma: (/\s*,\s*/g)
+    },
+
+    /**
+     * Property: defaultPrefix
+     */
+    defaultPrefix: "ogc",
+
+    /**
+     * Constructor: OpenLayers.Format.OGCExceptionReport
+     * Create a new parser for OGC exception reports.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *     this instance.
+     */
+
+    /**
+     * APIMethod: read
+     * Read OGC exception report data from a string, and return an object with
+     * information about the exceptions.
+     *
+     * Parameters:
+     * data - {String} or {DOMElement} data to read/parse.
+     *
+     * Returns:
+     * {Object} Information about the exceptions that occurred.
+     */
+    read: function(data) {
+        var result;
+        if(typeof data == "string") {
+            data = OpenLayers.Format.XML.prototype.read.apply(this, [data]);
+        }
+        var root = data.documentElement;
+        var exceptionInfo = {exceptionReport: null}; 
+        if (root) {
+            this.readChildNodes(data, exceptionInfo);
+            if (exceptionInfo.exceptionReport === null) {
+                // fall-back to OWSCommon since this is a common output format for exceptions
+                // we cannot easily use the ows readers directly since they differ for 1.0 and 1.1
+                exceptionInfo = new OpenLayers.Format.OWSCommon().read(data);
+            }
+        }
+        return exceptionInfo;
+    },
+
+    /**
+     * Property: readers
+     * Contains public functions, grouped by namespace prefix, that will
+     *     be applied when a namespaced node is found matching the function
+     *     name.  The function will be applied in the scope of this parser
+     *     with two arguments: the node being read and a context object passed
+     *     from the parent.
+     */
+    readers: {
+        "ogc": {
+            "ServiceExceptionReport": function(node, obj) {
+                obj.exceptionReport = {exceptions: []};
+                this.readChildNodes(node, obj.exceptionReport);
+            },
+            "ServiceException": function(node, exceptionReport) {
+                var exception = {
+                    code: node.getAttribute("code"),
+                    locator: node.getAttribute("locator"),
+                    text: this.getChildValue(node)
+                };
+                exceptionReport.exceptions.push(exception);
+            }
+        }
+    },
+    
+    CLASS_NAME: "OpenLayers.Format.OGCExceptionReport"
+    
+});
+/* ======================================================================
+    OpenLayers/Format/XML/VersionedOGC.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format/XML.js
+ * @requires OpenLayers/Format/OGCExceptionReport.js
+ */
+
+/**
+ * Class: OpenLayers.Format.XML.VersionedOGC
+ * Base class for versioned formats, i.e. a format which supports multiple
+ * versions.
+ *
+ * To enable checking if parsing succeeded, you will need to define a property
+ * called errorProperty on the parser you want to check. The parser will then
+ * check the returned object to see if that property is present. If it is, it
+ * assumes the parsing was successful. If it is not present (or is null), it will
+ * pass the document through an OGCExceptionReport parser.
+ * 
+ * If errorProperty is undefined for the parser, this error checking mechanism
+ * will be disabled.
+ *
+ *
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Format.XML>
+ */
+OpenLayers.Format.XML.VersionedOGC = OpenLayers.Class(OpenLayers.Format.XML, {
+    
+    /**
+     * APIProperty: defaultVersion
+     * {String} Version number to assume if none found.
+     */
+    defaultVersion: null,
+    
+    /**
+     * APIProperty: version
+     * {String} Specify a version string if one is known.
+     */
+    version: null,
+
+    /**
+     * APIProperty: profile
+     * {String} If provided, use a custom profile.
+     */
+    profile: null,
+
+    /**
+     * APIProperty: allowFallback
+     * {Boolean} If a profiled parser cannot be found for the returned version,
+     * use a non-profiled parser as the fallback. Application code using this
+     * should take into account that the return object structure might be
+     * missing the specifics of the profile. Defaults to false.
+     */
+    allowFallback: false,
+
+    /**
+     * Property: name
+     * {String} The name of this parser, this is the part of the CLASS_NAME
+     * except for "OpenLayers.Format."
+     */
+    name: null,
+
+    /**
+     * APIProperty: stringifyOutput
+     * {Boolean} If true, write will return a string otherwise a DOMElement.
+     * Default is false.
+     */
+    stringifyOutput: false,
+
+    /**
+     * Property: parser
+     * {Object} Instance of the versioned parser.  Cached for multiple read and
+     *     write calls of the same version.
+     */
+    parser: null,
+
+    /**
+     * Constructor: OpenLayers.Format.XML.VersionedOGC.
+     * Constructor.
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on
+     *     the object.
+     */
+    initialize: function(options) {
+        OpenLayers.Format.XML.prototype.initialize.apply(this, [options]);
+        var className = this.CLASS_NAME;
+        this.name = className.substring(className.lastIndexOf(".")+1);
+    },
+
+    /**
+     * Method: getVersion
+     * Returns the version to use. Subclasses can override this function
+     * if a different version detection is needed.
+     *
+     * Parameters:
+     * root - {DOMElement}
+     * options - {Object} Optional configuration object.
+     *
+     * Returns:
+     * {String} The version to use.
+     */
+    getVersion: function(root, options) {
+        var version;
+        // read
+        if (root) {
+            version = this.version;
+            if(!version) {
+                version = root.getAttribute("version");
+                if(!version) {
+                    version = this.defaultVersion;
+                }
+            }
+        } else { // write
+            version = (options && options.version) || 
+                this.version || this.defaultVersion;
+        }
+        return version;
+    },
+
+    /**
+     * Method: getParser
+     * Get an instance of the cached parser if available, otherwise create one.
+     *
+     * Parameters:
+     * version - {String}
+     *
+     * Returns:
+     * {<OpenLayers.Format>}
+     */
+    getParser: function(version) {
+        version = version || this.defaultVersion;
+        var profile = this.profile ? "_" + this.profile : "";
+        if(!this.parser || this.parser.VERSION != version) {
+            var format = OpenLayers.Format[this.name][
+                "v" + version.replace(/\./g, "_") + profile
+            ];
+            if(!format) {
+                if (profile !== "" && this.allowFallback) {
+                    // fallback to the non-profiled version of the parser
+                    profile = "";
+                    format = OpenLayers.Format[this.name][
+                        "v" + version.replace(/\./g, "_")
+                    ];
+                }
+                if (!format) {
+                    throw "Can't find a " + this.name + " parser for version " +
+                          version + profile;
+                }
+            }
+            this.parser = new format(this.options);
+        }
+        return this.parser;
+    },
+
+    /**
+     * APIMethod: write
+     * Write a document.
+     *
+     * Parameters:
+     * obj - {Object} An object representing the document.
+     * options - {Object} Optional configuration object.
+     *
+     * Returns:
+     * {String} The document as a string
+     */
+    write: function(obj, options) {
+        var version = this.getVersion(null, options);
+        this.parser = this.getParser(version);
+        var root = this.parser.write(obj, options);
+        if (this.stringifyOutput === false) {
+            return root;
+        } else {
+            return OpenLayers.Format.XML.prototype.write.apply(this, [root]);
+        }
+    },
+
+    /**
+     * APIMethod: read
+     * Read a doc and return an object representing the document.
+     *
+     * Parameters:
+     * data - {String | DOMElement} Data to read.
+     * options - {Object} Options for the reader.
+     *
+     * Returns:
+     * {Object} An object representing the document.
+     */
+    read: function(data, options) {
+        if(typeof data == "string") {
+            data = OpenLayers.Format.XML.prototype.read.apply(this, [data]);
+        }
+        var root = data.documentElement;
+        var version = this.getVersion(root);
+        this.parser = this.getParser(version);          // Select the parser
+        var obj = this.parser.read(data, options);      // Parse the data
+
+        var errorProperty = this.parser.errorProperty || null;
+        if (errorProperty !== null && obj[errorProperty] === undefined) {
+            // an error must have happened, so parse it and report back
+            var format = new OpenLayers.Format.OGCExceptionReport();
+            obj.error = format.read(data);
+        }
+        obj.version = version;
+        return obj;
+    },
+
+    CLASS_NAME: "OpenLayers.Format.XML.VersionedOGC"
+});
+/* ======================================================================
+    OpenLayers/Feature.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Util.js
+ */
+
+/**
+ * Class: OpenLayers.Feature
+ * Features are combinations of geography and attributes. The OpenLayers.Feature
+ *     class specifically combines a marker and a lonlat.
+ */
+OpenLayers.Feature = OpenLayers.Class({
+
+    /** 
+     * Property: layer 
+     * {<OpenLayers.Layer>} 
+     */
+    layer: null,
+
+    /** 
+     * Property: id 
+     * {String} 
+     */
+    id: null,
+    
+    /** 
+     * Property: lonlat 
+     * {<OpenLayers.LonLat>} 
+     */
+    lonlat: null,
+
+    /** 
+     * Property: data 
+     * {Object} 
+     */
+    data: null,
+
+    /** 
+     * Property: marker 
+     * {<OpenLayers.Marker>} 
+     */
+    marker: null,
+
+    /**
+     * APIProperty: popupClass
+     * {<OpenLayers.Class>} The class which will be used to instantiate
+     *     a new Popup. Default is <OpenLayers.Popup.Anchored>.
+     */
+    popupClass: null,
+
+    /** 
+     * Property: popup 
+     * {<OpenLayers.Popup>} 
+     */
+    popup: null,
+
+    /** 
+     * Constructor: OpenLayers.Feature
+     * Constructor for features.
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer>} 
+     * lonlat - {<OpenLayers.LonLat>} 
+     * data - {Object} 
+     * 
+     * Returns:
+     * {<OpenLayers.Feature>}
+     */
+    initialize: function(layer, lonlat, data) {
+        this.layer = layer;
+        this.lonlat = lonlat;
+        this.data = (data != null) ? data : {};
+        this.id = OpenLayers.Util.createUniqueID(this.CLASS_NAME + "_"); 
+    },
+
+    /** 
+     * Method: destroy
+     * nullify references to prevent circular references and memory leaks
+     */
+    destroy: function() {
+
+        //remove the popup from the map
+        if ((this.layer != null) && (this.layer.map != null)) {
+            if (this.popup != null) {
+                this.layer.map.removePopup(this.popup);
+            }
+        }
+        // remove the marker from the layer
+        if (this.layer != null && this.marker != null) {
+            this.layer.removeMarker(this.marker);
+        }
+
+        this.layer = null;
+        this.id = null;
+        this.lonlat = null;
+        this.data = null;
+        if (this.marker != null) {
+            this.destroyMarker(this.marker);
+            this.marker = null;
+        }
+        if (this.popup != null) {
+            this.destroyPopup(this.popup);
+            this.popup = null;
+        }
+    },
+    
+    /**
+     * Method: onScreen
+     * 
+     * Returns:
+     * {Boolean} Whether or not the feature is currently visible on screen
+     *           (based on its 'lonlat' property)
+     */
+    onScreen:function() {
+        
+        var onScreen = false;
+        if ((this.layer != null) && (this.layer.map != null)) {
+            var screenBounds = this.layer.map.getExtent();
+            onScreen = screenBounds.containsLonLat(this.lonlat);
+        }    
+        return onScreen;
+    },
+    
+
+    /**
+     * Method: createMarker
+     * Based on the data associated with the Feature, create and return a marker object.
+     *
+     * Returns: 
+     * {<OpenLayers.Marker>} A Marker Object created from the 'lonlat' and 'icon' properties
+     *          set in this.data. If no 'lonlat' is set, returns null. If no
+     *          'icon' is set, OpenLayers.Marker() will load the default image.
+     *          
+     *          Note - this.marker is set to return value
+     * 
+     */
+    createMarker: function() {
+
+        if (this.lonlat != null) {
+            this.marker = new OpenLayers.Marker(this.lonlat, this.data.icon);
+        }
+        return this.marker;
+    },
+
+    /**
+     * Method: destroyMarker
+     * Destroys marker.
+     * If user overrides the createMarker() function, s/he should be able
+     *   to also specify an alternative function for destroying it
+     */
+    destroyMarker: function() {
+        this.marker.destroy();  
+    },
+
+    /**
+     * Method: createPopup
+     * Creates a popup object created from the 'lonlat', 'popupSize',
+     *     and 'popupContentHTML' properties set in this.data. It uses
+     *     this.marker.icon as default anchor. 
+     *  
+     *  If no 'lonlat' is set, returns null. 
+     *  If no this.marker has been created, no anchor is sent.
+     *
+     *  Note - the returned popup object is 'owned' by the feature, so you
+     *      cannot use the popup's destroy method to discard the popup.
+     *      Instead, you must use the feature's destroyPopup
+     * 
+     *  Note - this.popup is set to return value
+     * 
+     * Parameters: 
+     * closeBox - {Boolean} create popup with closebox or not
+     * 
+     * Returns:
+     * {<OpenLayers.Popup>} Returns the created popup, which is also set
+     *     as 'popup' property of this feature. Will be of whatever type
+     *     specified by this feature's 'popupClass' property, but must be
+     *     of type <OpenLayers.Popup>.
+     * 
+     */
+    createPopup: function(closeBox) {
+
+        if (this.lonlat != null) {
+            if (!this.popup) {
+                var anchor = (this.marker) ? this.marker.icon : null;
+                var popupClass = this.popupClass ? 
+                    this.popupClass : OpenLayers.Popup.Anchored;
+                this.popup = new popupClass(this.id + "_popup", 
+                                            this.lonlat,
+                                            this.data.popupSize,
+                                            this.data.popupContentHTML,
+                                            anchor, 
+                                            closeBox); 
+            }    
+            if (this.data.overflow != null) {
+                this.popup.contentDiv.style.overflow = this.data.overflow;
+            }    
+            
+            this.popup.feature = this;
+        }        
+        return this.popup;
+    },
+
+    
+    /**
+     * Method: destroyPopup
+     * Destroys the popup created via createPopup.
+     *
+     * As with the marker, if user overrides the createPopup() function, s/he 
+     *   should also be able to override the destruction
+     */
+    destroyPopup: function() {
+        if (this.popup) {
+            this.popup.feature = null;
+            this.popup.destroy();
+            this.popup = null;
+        }    
+    },
+
+    CLASS_NAME: "OpenLayers.Feature"
+});
+/* ======================================================================
+    OpenLayers/Feature/Vector.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+// TRASH THIS
+OpenLayers.State = {
+    /** states */
+    UNKNOWN: 'Unknown',
+    INSERT: 'Insert',
+    UPDATE: 'Update',
+    DELETE: 'Delete'
+};
+
+/**
+ * @requires OpenLayers/Feature.js
+ * @requires OpenLayers/Util.js
+ */
+
+/**
+ * Class: OpenLayers.Feature.Vector
+ * Vector features use the OpenLayers.Geometry classes as geometry description.
+ * They have an 'attributes' property, which is the data object, and a 'style'
+ * property, the default values of which are defined in the 
+ * <OpenLayers.Feature.Vector.style> objects.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Feature>
+ */
+OpenLayers.Feature.Vector = OpenLayers.Class(OpenLayers.Feature, {
+
+    /** 
+     * Property: fid 
+     * {String} 
+     */
+    fid: null,
+    
+    /** 
+     * APIProperty: geometry 
+     * {<OpenLayers.Geometry>} 
+     */
+    geometry: null,
+
+    /** 
+     * APIProperty: attributes 
+     * {Object} This object holds arbitrary, serializable properties that
+     *     describe the feature.
+     */
+    attributes: null,
+
+    /**
+     * Property: bounds
+     * {<OpenLayers.Bounds>} The box bounding that feature's geometry, that
+     *     property can be set by an <OpenLayers.Format> object when
+     *     deserializing the feature, so in most cases it represents an
+     *     information set by the server. 
+     */
+    bounds: null,
+
+    /** 
+     * Property: state 
+     * {String} 
+     */
+    state: null,
+    
+    /** 
+     * APIProperty: style 
+     * {Object} 
+     */
+    style: null,
+
+    /**
+     * APIProperty: url
+     * {String} If this property is set it will be taken into account by
+     *     {<OpenLayers.HTTP>} when upadting or deleting the feature.
+     */
+    url: null,
+    
+    /**
+     * Property: renderIntent
+     * {String} rendering intent currently being used
+     */
+    renderIntent: "default",
+    
+    /**
+     * APIProperty: modified
+     * {Object} An object with the originals of the geometry and attributes of
+     * the feature, if they were changed. Currently this property is only read
+     * by <OpenLayers.Format.WFST.v1>, and written by
+     * <OpenLayers.Control.ModifyFeature>, which sets the geometry property.
+     * Applications can set the originals of modified attributes in the
+     * attributes property. Note that applications have to check if this
+     * object and the attributes property is already created before using it.
+     * After a change made with ModifyFeature, this object could look like
+     *
+     * (code)
+     * {
+     *     geometry: >Object
+     * }
+     * (end)
+     *
+     * When an application has made changes to feature attributes, it could
+     * have set the attributes to something like this:
+     *
+     * (code)
+     * {
+     *     attributes: {
+     *         myAttribute: "original"
+     *     }
+     * }
+     * (end)
+     *
+     * Note that <OpenLayers.Format.WFST.v1> only checks for truthy values in
+     * *modified.geometry* and the attribute names in *modified.attributes*,
+     * but it is recommended to set the original values (and not just true) as
+     * attribute value, so applications could use this information to undo
+     * changes.
+     */
+    modified: null,
+
+    /** 
+     * Constructor: OpenLayers.Feature.Vector
+     * Create a vector feature. 
+     * 
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} The geometry that this feature
+     *     represents.
+     * attributes - {Object} An optional object that will be mapped to the
+     *     <attributes> property. 
+     * style - {Object} An optional style object.
+     */
+    initialize: function(geometry, attributes, style) {
+        OpenLayers.Feature.prototype.initialize.apply(this,
+                                                      [null, null, attributes]);
+        this.lonlat = null;
+        this.geometry = geometry ? geometry : null;
+        this.state = null;
+        this.attributes = {};
+        if (attributes) {
+            this.attributes = OpenLayers.Util.extend(this.attributes,
+                                                     attributes);
+        }
+        this.style = style ? style : null; 
+    },
+    
+    /** 
+     * Method: destroy
+     * nullify references to prevent circular references and memory leaks
+     */
+    destroy: function() {
+        if (this.layer) {
+            this.layer.removeFeatures(this);
+            this.layer = null;
+        }
+            
+        this.geometry = null;
+        this.modified = null;
+        OpenLayers.Feature.prototype.destroy.apply(this, arguments);
+    },
+    
+    /**
+     * Method: clone
+     * Create a clone of this vector feature.  Does not set any non-standard
+     *     properties.
+     *
+     * Returns:
+     * {<OpenLayers.Feature.Vector>} An exact clone of this vector feature.
+     */
+    clone: function () {
+        return new OpenLayers.Feature.Vector(
+            this.geometry ? this.geometry.clone() : null,
+            this.attributes,
+            this.style);
+    },
+
+    /**
+     * Method: onScreen
+     * Determine whether the feature is within the map viewport.  This method
+     *     tests for an intersection between the geometry and the viewport
+     *     bounds.  If a more effecient but less precise geometry bounds
+     *     intersection is desired, call the method with the boundsOnly
+     *     parameter true.
+     *
+     * Parameters:
+     * boundsOnly - {Boolean} Only test whether a feature's bounds intersects
+     *     the viewport bounds.  Default is false.  If false, the feature's
+     *     geometry must intersect the viewport for onScreen to return true.
+     * 
+     * Returns:
+     * {Boolean} The feature is currently visible on screen (optionally
+     *     based on its bounds if boundsOnly is true).
+     */
+    onScreen:function(boundsOnly) {
+        var onScreen = false;
+        if(this.layer && this.layer.map) {
+            var screenBounds = this.layer.map.getExtent();
+            if(boundsOnly) {
+                var featureBounds = this.geometry.getBounds();
+                onScreen = screenBounds.intersectsBounds(featureBounds);
+            } else {
+                var screenPoly = screenBounds.toGeometry();
+                onScreen = screenPoly.intersects(this.geometry);
+            }
+        }    
+        return onScreen;
+    },
+
+    /**
+     * Method: getVisibility
+     * Determine whether the feature is displayed or not. It may not displayed
+     *     because:
+     *     - its style display property is set to 'none',
+     *     - it doesn't belong to any layer,
+     *     - the styleMap creates a symbolizer with display property set to 'none'
+     *          for it,
+     *     - the layer which it belongs to is not visible.
+     * 
+     * Returns:
+     * {Boolean} The feature is currently displayed.
+     */
+    getVisibility: function() {
+        return !(this.style && this.style.display == 'none' ||
+                 !this.layer ||
+                 this.layer && this.layer.styleMap &&
+                 this.layer.styleMap.createSymbolizer(this, this.renderIntent).display == 'none' ||
+                 this.layer && !this.layer.getVisibility());
+    },
+    
+    /**
+     * Method: createMarker
+     * HACK - we need to decide if all vector features should be able to
+     *     create markers
+     * 
+     * Returns:
+     * {<OpenLayers.Marker>} For now just returns null
+     */
+    createMarker: function() {
+        return null;
+    },
+
+    /**
+     * Method: destroyMarker
+     * HACK - we need to decide if all vector features should be able to
+     *     delete markers
+     * 
+     * If user overrides the createMarker() function, s/he should be able
+     *   to also specify an alternative function for destroying it
+     */
+    destroyMarker: function() {
+        // pass
+    },
+
+    /**
+     * Method: createPopup
+     * HACK - we need to decide if all vector features should be able to
+     *     create popups
+     * 
+     * Returns:
+     * {<OpenLayers.Popup>} For now just returns null
+     */
+    createPopup: function() {
+        return null;
+    },
+
+    /**
+     * Method: atPoint
+     * Determins whether the feature intersects with the specified location.
+     * 
+     * Parameters: 
+     * lonlat - {<OpenLayers.LonLat>|Object} OpenLayers.LonLat or an
+     *     object with a 'lon' and 'lat' properties.
+     * toleranceLon - {float} Optional tolerance in Geometric Coords
+     * toleranceLat - {float} Optional tolerance in Geographic Coords
+     * 
+     * Returns:
+     * {Boolean} Whether or not the feature is at the specified location
+     */
+    atPoint: function(lonlat, toleranceLon, toleranceLat) {
+        var atPoint = false;
+        if(this.geometry) {
+            atPoint = this.geometry.atPoint(lonlat, toleranceLon, 
+                                                    toleranceLat);
+        }
+        return atPoint;
+    },
+
+    /**
+     * Method: destroyPopup
+     * HACK - we need to decide if all vector features should be able to
+     * delete popups
+     */
+    destroyPopup: function() {
+        // pass
+    },
+
+    /**
+     * Method: move
+     * Moves the feature and redraws it at its new location
+     *
+     * Parameters:
+     * location - {<OpenLayers.LonLat> or <OpenLayers.Pixel>} the
+     *         location to which to move the feature.
+     */
+    move: function(location) {
+
+        if(!this.layer || !this.geometry.move){
+            //do nothing if no layer or immoveable geometry
+            return undefined;
+        }
+
+        var pixel;
+        if (location.CLASS_NAME == "OpenLayers.LonLat") {
+            pixel = this.layer.getViewPortPxFromLonLat(location);
+        } else {
+            pixel = location;
+        }
+        
+        var lastPixel = this.layer.getViewPortPxFromLonLat(this.geometry.getBounds().getCenterLonLat());
+        var res = this.layer.map.getResolution();
+        this.geometry.move(res * (pixel.x - lastPixel.x),
+                           res * (lastPixel.y - pixel.y));
+        this.layer.drawFeature(this);
+        return lastPixel;
+    },
+    
+    /**
+     * Method: toState
+     * Sets the new state
+     *
+     * Parameters:
+     * state - {String} 
+     */
+    toState: function(state) {
+        if (state == OpenLayers.State.UPDATE) {
+            switch (this.state) {
+                case OpenLayers.State.UNKNOWN:
+                case OpenLayers.State.DELETE:
+                    this.state = state;
+                    break;
+                case OpenLayers.State.UPDATE:
+                case OpenLayers.State.INSERT:
+                    break;
+            }
+        } else if (state == OpenLayers.State.INSERT) {
+            switch (this.state) {
+                case OpenLayers.State.UNKNOWN:
+                    break;
+                default:
+                    this.state = state;
+                    break;
+            }
+        } else if (state == OpenLayers.State.DELETE) {
+            switch (this.state) {
+                case OpenLayers.State.INSERT:
+                    // the feature should be destroyed
+                    break;
+                case OpenLayers.State.DELETE:
+                    break;
+                case OpenLayers.State.UNKNOWN:
+                case OpenLayers.State.UPDATE:
+                    this.state = state;
+                    break;
+            }
+        } else if (state == OpenLayers.State.UNKNOWN) {
+            this.state = state;
+        }
+    },
+    
+    CLASS_NAME: "OpenLayers.Feature.Vector"
+});
+
+
+/**
+ * Constant: OpenLayers.Feature.Vector.style
+ * OpenLayers features can have a number of style attributes. The 'default' 
+ *     style will typically be used if no other style is specified. These
+ *     styles correspond for the most part, to the styling properties defined
+ *     by the SVG standard. 
+ *     Information on fill properties: http://www.w3.org/TR/SVG/painting.html#FillProperties
+ *     Information on stroke properties: http://www.w3.org/TR/SVG/painting.html#StrokeProperties
+ *
+ * Symbolizer properties:
+ * fill - {Boolean} Set to false if no fill is desired.
+ * fillColor - {String} Hex fill color.  Default is "#ee9900".
+ * fillOpacity - {Number} Fill opacity (0-1).  Default is 0.4 
+ * stroke - {Boolean} Set to false if no stroke is desired.
+ * strokeColor - {String} Hex stroke color.  Default is "#ee9900".
+ * strokeOpacity - {Number} Stroke opacity (0-1).  Default is 1.
+ * strokeWidth - {Number} Pixel stroke width.  Default is 1.
+ * strokeLinecap - {String} Stroke cap type.  Default is "round".  [butt | round | square]
+ * strokeDashstyle - {String} Stroke dash style.  Default is "solid". [dot | dash | dashdot | longdash | longdashdot | solid]
+ * graphic - {Boolean} Set to false if no graphic is desired.
+ * pointRadius - {Number} Pixel point radius.  Default is 6.
+ * pointerEvents - {String}  Default is "visiblePainted".
+ * cursor - {String} Default is "".
+ * externalGraphic - {String} Url to an external graphic that will be used for rendering points.
+ * graphicWidth - {Number} Pixel width for sizing an external graphic.
+ * graphicHeight - {Number} Pixel height for sizing an external graphic.
+ * graphicOpacity - {Number} Opacity (0-1) for an external graphic.
+ * graphicXOffset - {Number} Pixel offset along the positive x axis for displacing an external graphic.
+ * graphicYOffset - {Number} Pixel offset along the positive y axis for displacing an external graphic.
+ * rotation - {Number} For point symbolizers, this is the rotation of a graphic in the clockwise direction about its center point (or any point off center as specified by graphicXOffset and graphicYOffset).
+ * graphicZIndex - {Number} The integer z-index value to use in rendering.
+ * graphicName - {String} Named graphic to use when rendering points.  Supported values include "circle" (default),
+ *     "square", "star", "x", "cross", "triangle".
+ * graphicTitle - {String} Tooltip when hovering over a feature. *deprecated*, use title instead
+ * title - {String} Tooltip when hovering over a feature. Not supported by the canvas renderer.
+ * backgroundGraphic - {String} Url to a graphic to be used as the background under an externalGraphic.
+ * backgroundGraphicZIndex - {Number} The integer z-index value to use in rendering the background graphic.
+ * backgroundXOffset - {Number} The x offset (in pixels) for the background graphic.
+ * backgroundYOffset - {Number} The y offset (in pixels) for the background graphic.
+ * backgroundHeight - {Number} The height of the background graphic.  If not provided, the graphicHeight will be used.
+ * backgroundWidth - {Number} The width of the background width.  If not provided, the graphicWidth will be used.
+ * label - {String} The text for an optional label. For browsers that use the canvas renderer, this requires either
+ *     fillText or mozDrawText to be available.
+ * labelAlign - {String} Label alignment. This specifies the insertion point relative to the text. It is a string
+ *     composed of two characters. The first character is for the horizontal alignment, the second for the vertical
+ *     alignment. Valid values for horizontal alignment: "l"=left, "c"=center, "r"=right. Valid values for vertical
+ *     alignment: "t"=top, "m"=middle, "b"=bottom. Example values: "lt", "cm", "rb". Default is "cm".
+ * labelXOffset - {Number} Pixel offset along the positive x axis for displacing the label. Not supported by the canvas renderer.
+ * labelYOffset - {Number} Pixel offset along the positive y axis for displacing the label. Not supported by the canvas renderer.
+ * labelSelect - {Boolean} If set to true, labels will be selectable using SelectFeature or similar controls.
+ *     Default is false.
+ * labelOutlineColor - {String} The color of the label outline. Default is 'white'. Only supported by the canvas & SVG renderers.
+ * labelOutlineWidth - {Number} The width of the label outline. Default is 3, set to 0 or null to disable. Only supported by the  SVG renderers.
+ * labelOutlineOpacity - {Number} The opacity (0-1) of the label outline. Default is fontOpacity. Only supported by the canvas & SVG renderers.
+ * fontColor - {String} The font color for the label, to be provided like CSS.
+ * fontOpacity - {Number} Opacity (0-1) for the label
+ * fontFamily - {String} The font family for the label, to be provided like in CSS.
+ * fontSize - {String} The font size for the label, to be provided like in CSS.
+ * fontStyle - {String} The font style for the label, to be provided like in CSS.
+ * fontWeight - {String} The font weight for the label, to be provided like in CSS.
+ * display - {String} Symbolizers will have no effect if display is set to "none".  All other values have no effect.
+ */ 
+OpenLayers.Feature.Vector.style = {
+    'default': {
+        fillColor: "#ee9900",
+        fillOpacity: 0.4, 
+        hoverFillColor: "white",
+        hoverFillOpacity: 0.8,
+        strokeColor: "#ee9900",
+        strokeOpacity: 1,
+        strokeWidth: 1,
+        strokeLinecap: "round",
+        strokeDashstyle: "solid",
+        hoverStrokeColor: "red",
+        hoverStrokeOpacity: 1,
+        hoverStrokeWidth: 0.2,
+        pointRadius: 6,
+        hoverPointRadius: 1,
+        hoverPointUnit: "%",
+        pointerEvents: "visiblePainted",
+        cursor: "inherit",
+        fontColor: "#000000",
+        labelAlign: "cm",
+        labelOutlineColor: "white",
+        labelOutlineWidth: 3
+    },
+    'select': {
+        fillColor: "blue",
+        fillOpacity: 0.4, 
+        hoverFillColor: "white",
+        hoverFillOpacity: 0.8,
+        strokeColor: "blue",
+        strokeOpacity: 1,
+        strokeWidth: 2,
+        strokeLinecap: "round",
+        strokeDashstyle: "solid",
+        hoverStrokeColor: "red",
+        hoverStrokeOpacity: 1,
+        hoverStrokeWidth: 0.2,
+        pointRadius: 6,
+        hoverPointRadius: 1,
+        hoverPointUnit: "%",
+        pointerEvents: "visiblePainted",
+        cursor: "pointer",
+        fontColor: "#000000",
+        labelAlign: "cm",
+        labelOutlineColor: "white",
+        labelOutlineWidth: 3
+
+    },
+    'temporary': {
+        fillColor: "#66cccc",
+        fillOpacity: 0.2, 
+        hoverFillColor: "white",
+        hoverFillOpacity: 0.8,
+        strokeColor: "#66cccc",
+        strokeOpacity: 1,
+        strokeLinecap: "round",
+        strokeWidth: 2,
+        strokeDashstyle: "solid",
+        hoverStrokeColor: "red",
+        hoverStrokeOpacity: 1,
+        hoverStrokeWidth: 0.2,
+        pointRadius: 6,
+        hoverPointRadius: 1,
+        hoverPointUnit: "%",
+        pointerEvents: "visiblePainted",
+        cursor: "inherit",
+        fontColor: "#000000",
+        labelAlign: "cm",
+        labelOutlineColor: "white",
+        labelOutlineWidth: 3
+
+    },
+    'delete': {
+        display: "none"
+    }
+};    
+/* ======================================================================
+    OpenLayers/Style.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Util.js
+ * @requires OpenLayers/Feature/Vector.js
+ */
+
+/**
+ * Class: OpenLayers.Style
+ * This class represents a UserStyle obtained
+ *     from a SLD, containing styling rules.
+ */
+OpenLayers.Style = OpenLayers.Class({
+
+    /**
+     * Property: id
+     * {String} A unique id for this session.
+     */
+    id: null,
+    
+    /**
+     * APIProperty: name
+     * {String}
+     */
+    name: null,
+    
+    /**
+     * Property: title
+     * {String} Title of this style (set if included in SLD)
+     */
+    title: null,
+    
+    /**
+     * Property: description
+     * {String} Description of this style (set if abstract is included in SLD)
+     */
+    description: null,
+
+    /**
+     * APIProperty: layerName
+     * {<String>} name of the layer that this style belongs to, usually
+     * according to the NamedLayer attribute of an SLD document.
+     */
+    layerName: null,
+    
+    /**
+     * APIProperty: isDefault
+     * {Boolean}
+     */
+    isDefault: false,
+     
+    /** 
+     * Property: rules 
+     * {Array(<OpenLayers.Rule>)}
+     */
+    rules: null,
+    
+    /**
+     * APIProperty: context
+     * {Object} An optional object with properties that symbolizers' property
+     * values should be evaluated against. If no context is specified,
+     * feature.attributes will be used
+     */
+    context: null,
+
+    /**
+     * Property: defaultStyle
+     * {Object} hash of style properties to use as default for merging
+     * rule-based style symbolizers onto. If no rules are defined,
+     * createSymbolizer will return this style. If <defaultsPerSymbolizer> is set to
+     * true, the defaultStyle will only be taken into account if there are
+     * rules defined.
+     */
+    defaultStyle: null,
+    
+    /**
+     * Property: defaultsPerSymbolizer
+     * {Boolean} If set to true, the <defaultStyle> will extend the symbolizer
+     * of every rule. Properties of the <defaultStyle> will also be used to set
+     * missing symbolizer properties if the symbolizer has stroke, fill or
+     * graphic set to true. Default is false.
+     */
+    defaultsPerSymbolizer: false,
+    
+    /**
+     * Property: propertyStyles
+     * {Hash of Boolean} cache of style properties that need to be parsed for
+     * propertyNames. Property names are keys, values won't be used.
+     */
+    propertyStyles: null,
+    
+
+    /** 
+     * Constructor: OpenLayers.Style
+     * Creates a UserStyle.
+     *
+     * Parameters:
+     * style        - {Object} Optional hash of style properties that will be
+     *                used as default style for this style object. This style
+     *                applies if no rules are specified. Symbolizers defined in
+     *                rules will extend this default style.
+     * options - {Object} An optional object with properties to set on the
+     *     style.
+     *
+     * Valid options:
+     * rules - {Array(<OpenLayers.Rule>)} List of rules to be added to the
+     *     style.
+     * 
+     * Returns:
+     * {<OpenLayers.Style>}
+     */
+    initialize: function(style, options) {
+
+        OpenLayers.Util.extend(this, options);
+        this.rules = [];
+        if(options && options.rules) {
+            this.addRules(options.rules);
+        }
+
+        // use the default style from OpenLayers.Feature.Vector if no style
+        // was given in the constructor
+        this.setDefaultStyle(style ||
+                             OpenLayers.Feature.Vector.style["default"]);
+
+        this.id = OpenLayers.Util.createUniqueID(this.CLASS_NAME + "_");
+    },
+
+    /** 
+     * APIMethod: destroy
+     * nullify references to prevent circular references and memory leaks
+     */
+    destroy: function() {
+        for (var i=0, len=this.rules.length; i<len; i++) {
+            this.rules[i].destroy();
+            this.rules[i] = null;
+        }
+        this.rules = null;
+        this.defaultStyle = null;
+    },
+    
+    /**
+     * Method: createSymbolizer
+     * creates a style by applying all feature-dependent rules to the base
+     * style.
+     * 
+     * Parameters:
+     * feature - {<OpenLayers.Feature>} feature to evaluate rules for
+     * 
+     * Returns:
+     * {Object} symbolizer hash
+     */
+    createSymbolizer: function(feature) {
+        var style = this.defaultsPerSymbolizer ? {} : this.createLiterals(
+            OpenLayers.Util.extend({}, this.defaultStyle), feature);
+        
+        var rules = this.rules;
+
+        var rule, context;
+        var elseRules = [];
+        var appliedRules = false;
+        for(var i=0, len=rules.length; i<len; i++) {
+            rule = rules[i];
+            // does the rule apply?
+            var applies = rule.evaluate(feature);
+            
+            if(applies) {
+                if(rule instanceof OpenLayers.Rule && rule.elseFilter) {
+                    elseRules.push(rule);
+                } else {
+                    appliedRules = true;
+                    this.applySymbolizer(rule, style, feature);
+                }
+            }
+        }
+        
+        // if no other rules apply, apply the rules with else filters
+        if(appliedRules == false && elseRules.length > 0) {
+            appliedRules = true;
+            for(var i=0, len=elseRules.length; i<len; i++) {
+                this.applySymbolizer(elseRules[i], style, feature);
+            }
+        }
+
+        // don't display if there were rules but none applied
+        if(rules.length > 0 && appliedRules == false) {
+            style.display = "none";
+        }
+        
+        if (style.label != null && typeof style.label !== "string") {
+            style.label = String(style.label);
+        }
+        
+        return style;
+    },
+    
+    /**
+     * Method: applySymbolizer
+     *
+     * Parameters:
+     * rule - {<OpenLayers.Rule>}
+     * style - {Object}
+     * feature - {<OpenLayer.Feature.Vector>}
+     *
+     * Returns:
+     * {Object} A style with new symbolizer applied.
+     */
+    applySymbolizer: function(rule, style, feature) {
+        var symbolizerPrefix = feature.geometry ?
+                this.getSymbolizerPrefix(feature.geometry) :
+                OpenLayers.Style.SYMBOLIZER_PREFIXES[0];
+
+        var symbolizer = rule.symbolizer[symbolizerPrefix] || rule.symbolizer;
+        
+        if(this.defaultsPerSymbolizer === true) {
+            var defaults = this.defaultStyle;
+            OpenLayers.Util.applyDefaults(symbolizer, {
+                pointRadius: defaults.pointRadius
+            });
+            if(symbolizer.stroke === true || symbolizer.graphic === true) {
+                OpenLayers.Util.applyDefaults(symbolizer, {
+                    strokeWidth: defaults.strokeWidth,
+                    strokeColor: defaults.strokeColor,
+                    strokeOpacity: defaults.strokeOpacity,
+                    strokeDashstyle: defaults.strokeDashstyle,
+                    strokeLinecap: defaults.strokeLinecap
+                });
+            }
+            if(symbolizer.fill === true || symbolizer.graphic === true) {
+                OpenLayers.Util.applyDefaults(symbolizer, {
+                    fillColor: defaults.fillColor,
+                    fillOpacity: defaults.fillOpacity
+                });
+            }
+            if(symbolizer.graphic === true) {
+                OpenLayers.Util.applyDefaults(symbolizer, {
+                    pointRadius: this.defaultStyle.pointRadius,
+                    externalGraphic: this.defaultStyle.externalGraphic,
+                    graphicName: this.defaultStyle.graphicName,
+                    graphicOpacity: this.defaultStyle.graphicOpacity,
+                    graphicWidth: this.defaultStyle.graphicWidth,
+                    graphicHeight: this.defaultStyle.graphicHeight,
+                    graphicXOffset: this.defaultStyle.graphicXOffset,
+                    graphicYOffset: this.defaultStyle.graphicYOffset
+                });
+            }
+        }
+
+        // merge the style with the current style
+        return this.createLiterals(
+                OpenLayers.Util.extend(style, symbolizer), feature);
+    },
+    
+    /**
+     * Method: createLiterals
+     * creates literals for all style properties that have an entry in
+     * <this.propertyStyles>.
+     * 
+     * Parameters:
+     * style   - {Object} style to create literals for. Will be modified
+     *           inline.
+     * feature - {Object}
+     * 
+     * Returns:
+     * {Object} the modified style
+     */
+    createLiterals: function(style, feature) {
+        var context = OpenLayers.Util.extend({}, feature.attributes || feature.data);
+        OpenLayers.Util.extend(context, this.context);
+        
+        for (var i in this.propertyStyles) {
+            style[i] = OpenLayers.Style.createLiteral(style[i], context, feature, i);
+        }
+        return style;
+    },
+    
+    /**
+     * Method: findPropertyStyles
+     * Looks into all rules for this style and the defaultStyle to collect
+     * all the style hash property names containing ${...} strings that have
+     * to be replaced using the createLiteral method before returning them.
+     * 
+     * Returns:
+     * {Object} hash of property names that need createLiteral parsing. The
+     * name of the property is the key, and the value is true;
+     */
+    findPropertyStyles: function() {
+        var propertyStyles = {};
+
+        // check the default style
+        var style = this.defaultStyle;
+        this.addPropertyStyles(propertyStyles, style);
+
+        // walk through all rules to check for properties in their symbolizer
+        var rules = this.rules;
+        var symbolizer, value;
+        for (var i=0, len=rules.length; i<len; i++) {
+            symbolizer = rules[i].symbolizer;
+            for (var key in symbolizer) {
+                value = symbolizer[key];
+                if (typeof value == "object") {
+                    // symbolizer key is "Point", "Line" or "Polygon"
+                    this.addPropertyStyles(propertyStyles, value);
+                } else {
+                    // symbolizer is a hash of style properties
+                    this.addPropertyStyles(propertyStyles, symbolizer);
+                    break;
+                }
+            }
+        }
+        return propertyStyles;
+    },
+    
+    /**
+     * Method: addPropertyStyles
+     * 
+     * Parameters:
+     * propertyStyles - {Object} hash to add new property styles to. Will be
+     *                  modified inline
+     * symbolizer     - {Object} search this symbolizer for property styles
+     * 
+     * Returns:
+     * {Object} propertyStyles hash
+     */
+    addPropertyStyles: function(propertyStyles, symbolizer) {
+        var property;
+        for (var key in symbolizer) {
+            property = symbolizer[key];
+            if (typeof property == "string" &&
+                    property.match(/\$\{\w+\}/)) {
+                propertyStyles[key] = true;
+            }
+        }
+        return propertyStyles;
+    },
+    
+    /**
+     * APIMethod: addRules
+     * Adds rules to this style.
+     * 
+     * Parameters:
+     * rules - {Array(<OpenLayers.Rule>)}
+     */
+    addRules: function(rules) {
+        Array.prototype.push.apply(this.rules, rules);
+        this.propertyStyles = this.findPropertyStyles();
+    },
+    
+    /**
+     * APIMethod: setDefaultStyle
+     * Sets the default style for this style object.
+     * 
+     * Parameters:
+     * style - {Object} Hash of style properties
+     */
+    setDefaultStyle: function(style) {
+        this.defaultStyle = style; 
+        this.propertyStyles = this.findPropertyStyles();
+    },
+        
+    /**
+     * Method: getSymbolizerPrefix
+     * Returns the correct symbolizer prefix according to the
+     * geometry type of the passed geometry
+     * 
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {String} key of the according symbolizer
+     */
+    getSymbolizerPrefix: function(geometry) {
+        var prefixes = OpenLayers.Style.SYMBOLIZER_PREFIXES;
+        for (var i=0, len=prefixes.length; i<len; i++) {
+            if (geometry.CLASS_NAME.indexOf(prefixes[i]) != -1) {
+                return prefixes[i];
+            }
+        }
+    },
+    
+    /**
+     * APIMethod: clone
+     * Clones this style.
+     * 
+     * Returns:
+     * {<OpenLayers.Style>} Clone of this style.
+     */
+    clone: function() {
+        var options = OpenLayers.Util.extend({}, this);
+        // clone rules
+        if(this.rules) {
+            options.rules = [];
+            for(var i=0, len=this.rules.length; i<len; ++i) {
+                options.rules.push(this.rules[i].clone());
+            }
+        }
+        // clone context
+        options.context = this.context && OpenLayers.Util.extend({}, this.context);
+        //clone default style
+        var defaultStyle = OpenLayers.Util.extend({}, this.defaultStyle);
+        return new OpenLayers.Style(defaultStyle, options);
+    },
+    
+    CLASS_NAME: "OpenLayers.Style"
+});
+
+
+/**
+ * Function: createLiteral
+ * converts a style value holding a combination of PropertyName and Literal
+ * into a Literal, taking the property values from the passed features.
+ * 
+ * Parameters:
+ * value - {String} value to parse. If this string contains a construct like
+ *         "foo ${bar}", then "foo " will be taken as literal, and "${bar}"
+ *         will be replaced by the value of the "bar" attribute of the passed
+ *         feature.
+ * context - {Object} context to take attribute values from
+ * feature - {<OpenLayers.Feature.Vector>} optional feature to pass to
+ *           <OpenLayers.String.format> for evaluating functions in the
+ *           context.
+ * property - {String} optional, name of the property for which the literal is
+ *            being created for evaluating functions in the context.
+ * 
+ * Returns:
+ * {String} the parsed value. In the example of the value parameter above, the
+ * result would be "foo valueOfBar", assuming that the passed feature has an
+ * attribute named "bar" with the value "valueOfBar".
+ */
+OpenLayers.Style.createLiteral = function(value, context, feature, property) {
+    if (typeof value == "string" && value.indexOf("${") != -1) {
+        value = OpenLayers.String.format(value, context, [feature, property]);
+        value = (isNaN(value) || !value) ? value : parseFloat(value);
+    }
+    return value;
+};
+    
+/**
+ * Constant: OpenLayers.Style.SYMBOLIZER_PREFIXES
+ * {Array} prefixes of the sld symbolizers. These are the
+ * same as the main geometry types
+ */
+OpenLayers.Style.SYMBOLIZER_PREFIXES = ['Point', 'Line', 'Polygon', 'Text',
+    'Raster'];
+/* ======================================================================
+    OpenLayers/Filter.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Util.js
+ * @requires OpenLayers/Style.js
+ */
+
+/**
+ * Class: OpenLayers.Filter
+ * This class represents an OGC Filter.
+ */
+OpenLayers.Filter = OpenLayers.Class({
+    
+    /** 
+     * Constructor: OpenLayers.Filter
+     * This class represents a generic filter.
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on the
+     *     instance.
+     * 
+     * Returns:
+     * {<OpenLayers.Filter>}
+     */
+    initialize: function(options) {
+        OpenLayers.Util.extend(this, options);
+    },
+
+    /** 
+     * APIMethod: destroy
+     * Remove reference to anything added.
+     */
+    destroy: function() {
+    },
+
+    /**
+     * APIMethod: evaluate
+     * Evaluates this filter in a specific context.  Instances or subclasses
+     * are supposed to override this method.
+     * 
+     * Parameters:
+     * context - {Object} Context to use in evaluating the filter.  If a vector
+     *     feature is provided, the feature.attributes will be used as context.
+     * 
+     * Returns:
+     * {Boolean} The filter applies.
+     */
+    evaluate: function(context) {
+        return true;
+    },
+    
+    /**
+     * APIMethod: clone
+     * Clones this filter. Should be implemented by subclasses.
+     * 
+     * Returns:
+     * {<OpenLayers.Filter>} Clone of this filter.
+     */
+    clone: function() {
+        return null;
+    },
+    
+    /**
+     * APIMethod: toString
+     *
+     * Returns:
+     * {String} Include <OpenLayers.Format.CQL> in your build to get a CQL
+     *     representation of the filter returned. Otherwise "[Object object]"
+     *     will be returned.
+     */
+    toString: function() {
+        var string;
+        if (OpenLayers.Format && OpenLayers.Format.CQL) {
+            string = OpenLayers.Format.CQL.prototype.write(this);
+        } else {
+            string = Object.prototype.toString.call(this);
+        }
+        return string;
+    },
+    
+    CLASS_NAME: "OpenLayers.Filter"
+});
+/* ======================================================================
+    OpenLayers/Filter/FeatureId.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Filter.js
+ */
+
+/**
+ * Class: OpenLayers.Filter.FeatureId
+ * This class represents a ogc:FeatureId Filter, as being used for rule-based SLD
+ * styling
+ * 
+ * Inherits from:
+ * - <OpenLayers.Filter>
+ */
+OpenLayers.Filter.FeatureId = OpenLayers.Class(OpenLayers.Filter, {
+
+    /** 
+     * APIProperty: fids
+     * {Array(String)} Feature Ids to evaluate this rule against. 
+     *     To be passed inside the params object.
+     */
+    fids: null,
+    
+    /** 
+     * Property: type
+     * {String} Type to identify this filter.
+     */
+    type: "FID",
+    
+    /** 
+     * Constructor: OpenLayers.Filter.FeatureId
+     * Creates an ogc:FeatureId rule.
+     *
+     * Parameters:
+     * options - {Object} An optional object with properties to set on the
+     *           rule
+     * 
+     * Returns:
+     * {<OpenLayers.Filter.FeatureId>}
+     */
+    initialize: function(options) {
+        this.fids = [];
+        OpenLayers.Filter.prototype.initialize.apply(this, [options]);
+    },
+
+    /**
+     * APIMethod: evaluate
+     * evaluates this rule for a specific feature
+     * 
+     * Parameters:
+     * feature - {<OpenLayers.Feature>} feature to apply the rule to.
+     *           For vector features, the check is run against the fid,
+     *           for plain features against the id.
+     * 
+     * Returns:
+     * {Boolean} true if the rule applies, false if it does not
+     */
+    evaluate: function(feature) {
+        for (var i=0, len=this.fids.length; i<len; i++) {
+            var fid = feature.fid || feature.id;
+            if (fid == this.fids[i]) {
+                return true;
+            }
+        }
+        return false;
+    },
+    
+    /**
+     * APIMethod: clone
+     * Clones this filter.
+     * 
+     * Returns:
+     * {<OpenLayers.Filter.FeatureId>} Clone of this filter.
+     */
+    clone: function() {
+        var filter = new OpenLayers.Filter.FeatureId();
+        OpenLayers.Util.extend(filter, this);
+        filter.fids = this.fids.slice();
+        return filter;
+    },
+    
+    CLASS_NAME: "OpenLayers.Filter.FeatureId"
+});
+/* ======================================================================
+    OpenLayers/Filter/Logical.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Filter.js
+ */
+
+/**
+ * Class: OpenLayers.Filter.Logical
+ * This class represents ogc:And, ogc:Or and ogc:Not rules.
+ * 
+ * Inherits from:
+ * - <OpenLayers.Filter>
+ */
+OpenLayers.Filter.Logical = OpenLayers.Class(OpenLayers.Filter, {
+
+    /**
+     * APIProperty: filters
+     * {Array(<OpenLayers.Filter>)} Child filters for this filter.
+     */
+    filters: null, 
+     
+    /**
+     * APIProperty: type
+     * {String} type of logical operator. Available types are:
+     * - OpenLayers.Filter.Logical.AND = "&&";
+     * - OpenLayers.Filter.Logical.OR  = "||";
+     * - OpenLayers.Filter.Logical.NOT = "!";
+     */
+    type: null,
+
+    /** 
+     * Constructor: OpenLayers.Filter.Logical
+     * Creates a logical filter (And, Or, Not).
+     *
+     * Parameters:
+     * options - {Object} An optional object with properties to set on the
+     *     filter.
+     * 
+     * Returns:
+     * {<OpenLayers.Filter.Logical>}
+     */
+    initialize: function(options) {
+        this.filters = [];
+        OpenLayers.Filter.prototype.initialize.apply(this, [options]);
+    },
+    
+    /** 
+     * APIMethod: destroy
+     * Remove reference to child filters.
+     */
+    destroy: function() {
+        this.filters = null;
+        OpenLayers.Filter.prototype.destroy.apply(this);
+    },
+
+    /**
+     * APIMethod: evaluate
+     * Evaluates this filter in a specific context.
+     * 
+     * Parameters:
+     * context - {Object} Context to use in evaluating the filter.  A vector
+     *     feature may also be provided to evaluate feature attributes in 
+     *     comparison filters or geometries in spatial filters.
+     * 
+     * Returns:
+     * {Boolean} The filter applies.
+     */
+    evaluate: function(context) {
+        var i, len;
+        switch(this.type) {
+            case OpenLayers.Filter.Logical.AND:
+                for (i=0, len=this.filters.length; i<len; i++) {
+                    if (this.filters[i].evaluate(context) == false) {
+                        return false;
+                    }
+                }
+                return true;
+                
+            case OpenLayers.Filter.Logical.OR:
+                for (i=0, len=this.filters.length; i<len; i++) {
+                    if (this.filters[i].evaluate(context) == true) {
+                        return true;
+                    }
+                }
+                return false;
+            
+            case OpenLayers.Filter.Logical.NOT:
+                return (!this.filters[0].evaluate(context));
+        }
+        return undefined;
+    },
+    
+    /**
+     * APIMethod: clone
+     * Clones this filter.
+     * 
+     * Returns:
+     * {<OpenLayers.Filter.Logical>} Clone of this filter.
+     */
+    clone: function() {
+        var filters = [];        
+        for(var i=0, len=this.filters.length; i<len; ++i) {
+            filters.push(this.filters[i].clone());
+        }
+        return new OpenLayers.Filter.Logical({
+            type: this.type,
+            filters: filters
+        });
+    },
+    
+    CLASS_NAME: "OpenLayers.Filter.Logical"
+});
+
+
+OpenLayers.Filter.Logical.AND = "&&";
+OpenLayers.Filter.Logical.OR  = "||";
+OpenLayers.Filter.Logical.NOT = "!";
+/* ======================================================================
+    OpenLayers/Filter/Comparison.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Filter.js
+ */
+
+/**
+ * Class: OpenLayers.Filter.Comparison
+ * This class represents a comparison filter.
+ * 
+ * Inherits from:
+ * - <OpenLayers.Filter>
+ */
+OpenLayers.Filter.Comparison = OpenLayers.Class(OpenLayers.Filter, {
+
+    /**
+     * APIProperty: type
+     * {String} type: type of the comparison. This is one of
+     * - OpenLayers.Filter.Comparison.EQUAL_TO                 = "==";
+     * - OpenLayers.Filter.Comparison.NOT_EQUAL_TO             = "!=";
+     * - OpenLayers.Filter.Comparison.LESS_THAN                = "<";
+     * - OpenLayers.Filter.Comparison.GREATER_THAN             = ">";
+     * - OpenLayers.Filter.Comparison.LESS_THAN_OR_EQUAL_TO    = "<=";
+     * - OpenLayers.Filter.Comparison.GREATER_THAN_OR_EQUAL_TO = ">=";
+     * - OpenLayers.Filter.Comparison.BETWEEN                  = "..";
+     * - OpenLayers.Filter.Comparison.LIKE                     = "~";
+     * - OpenLayers.Filter.Comparison.IS_NULL                  = "NULL";
+     */
+    type: null,
+    
+    /**
+     * APIProperty: property
+     * {String}
+     * name of the context property to compare
+     */
+    property: null,
+    
+    /**
+     * APIProperty: value
+     * {Number} or {String}
+     * comparison value for binary comparisons. In the case of a String, this
+     * can be a combination of text and propertyNames in the form
+     * "literal ${propertyName}"
+     */
+    value: null,
+    
+    /**
+     * Property: matchCase
+     * {Boolean} Force case sensitive searches for EQUAL_TO and NOT_EQUAL_TO
+     *     comparisons.  The Filter Encoding 1.1 specification added a matchCase
+     *     attribute to ogc:PropertyIsEqualTo and ogc:PropertyIsNotEqualTo
+     *     elements.  This property will be serialized with those elements only
+     *     if using the v1.1.0 filter format. However, when evaluating filters
+     *     here, the matchCase property will always be respected (for EQUAL_TO
+     *     and NOT_EQUAL_TO).  Default is true. 
+     */
+    matchCase: true,
+    
+    /**
+     * APIProperty: lowerBoundary
+     * {Number} or {String}
+     * lower boundary for between comparisons. In the case of a String, this
+     * can be a combination of text and propertyNames in the form
+     * "literal ${propertyName}"
+     */
+    lowerBoundary: null,
+    
+    /**
+     * APIProperty: upperBoundary
+     * {Number} or {String}
+     * upper boundary for between comparisons. In the case of a String, this
+     * can be a combination of text and propertyNames in the form
+     * "literal ${propertyName}"
+     */
+    upperBoundary: null,
+
+    /** 
+     * Constructor: OpenLayers.Filter.Comparison
+     * Creates a comparison rule.
+     *
+     * Parameters:
+     * options - {Object} An optional object with properties to set on the
+     *           rule
+     * 
+     * Returns:
+     * {<OpenLayers.Filter.Comparison>}
+     */
+    initialize: function(options) {
+        OpenLayers.Filter.prototype.initialize.apply(this, [options]);
+        // since matchCase on PropertyIsLike is not schema compliant, we only
+        // want to use this if explicitly asked for
+        if (this.type === OpenLayers.Filter.Comparison.LIKE 
+            && options.matchCase === undefined) {
+                this.matchCase = null;
+        }
+    },
+
+    /**
+     * APIMethod: evaluate
+     * Evaluates this filter in a specific context.
+     * 
+     * Parameters:
+     * context - {Object} Context to use in evaluating the filter.  If a vector
+     *     feature is provided, the feature.attributes will be used as context.
+     * 
+     * Returns:
+     * {Boolean} The filter applies.
+     */
+    evaluate: function(context) {
+        if (context instanceof OpenLayers.Feature.Vector) {
+            context = context.attributes;
+        }
+        var result = false;
+        var got = context[this.property];
+        var exp;
+        switch(this.type) {
+            case OpenLayers.Filter.Comparison.EQUAL_TO:
+                exp = this.value;
+                if(!this.matchCase &&
+                   typeof got == "string" && typeof exp == "string") {
+                    result = (got.toUpperCase() == exp.toUpperCase());
+                } else {
+                    result = (got == exp);
+                }
+                break;
+            case OpenLayers.Filter.Comparison.NOT_EQUAL_TO:
+                exp = this.value;
+                if(!this.matchCase &&
+                   typeof got == "string" && typeof exp == "string") {
+                    result = (got.toUpperCase() != exp.toUpperCase());
+                } else {
+                    result = (got != exp);
+                }
+                break;
+            case OpenLayers.Filter.Comparison.LESS_THAN:
+                result = got < this.value;
+                break;
+            case OpenLayers.Filter.Comparison.GREATER_THAN:
+                result = got > this.value;
+                break;
+            case OpenLayers.Filter.Comparison.LESS_THAN_OR_EQUAL_TO:
+                result = got <= this.value;
+                break;
+            case OpenLayers.Filter.Comparison.GREATER_THAN_OR_EQUAL_TO:
+                result = got >= this.value;
+                break;
+            case OpenLayers.Filter.Comparison.BETWEEN:
+                result = (got >= this.lowerBoundary) &&
+                    (got <= this.upperBoundary);
+                break;
+            case OpenLayers.Filter.Comparison.LIKE:
+                var regexp = new RegExp(this.value, "gi");
+                result = regexp.test(got);
+                break;
+            case OpenLayers.Filter.Comparison.IS_NULL:
+                result = (got === null);
+                break;
+        }
+        return result;
+    },
+    
+    /**
+     * APIMethod: value2regex
+     * Converts the value of this rule into a regular expression string,
+     * according to the wildcard characters specified. This method has to
+     * be called after instantiation of this class, if the value is not a
+     * regular expression already.
+     * 
+     * Parameters:
+     * wildCard   - {Char} wildcard character in the above value, default
+     *              is "*"
+     * singleChar - {Char} single-character wildcard in the above value
+     *              default is "."
+     * escapeChar - {Char} escape character in the above value, default is
+     *              "!"
+     * 
+     * Returns:
+     * {String} regular expression string
+     */
+    value2regex: function(wildCard, singleChar, escapeChar) {
+        if (wildCard == ".") {
+            throw new Error("'.' is an unsupported wildCard character for " +
+                            "OpenLayers.Filter.Comparison");
+        }
+        
+
+        // set UMN MapServer defaults for unspecified parameters
+        wildCard = wildCard ? wildCard : "*";
+        singleChar = singleChar ? singleChar : ".";
+        escapeChar = escapeChar ? escapeChar : "!";
+        
+        this.value = this.value.replace(
+                new RegExp("\\"+escapeChar+"(.|$)", "g"), "\\$1");
+        this.value = this.value.replace(
+                new RegExp("\\"+singleChar, "g"), ".");
+        this.value = this.value.replace(
+                new RegExp("\\"+wildCard, "g"), ".*");
+        this.value = this.value.replace(
+                new RegExp("\\\\.\\*", "g"), "\\"+wildCard);
+        this.value = this.value.replace(
+                new RegExp("\\\\\\.", "g"), "\\"+singleChar);
+        
+        return this.value;
+    },
+    
+    /**
+     * Method: regex2value
+     * Convert the value of this rule from a regular expression string into an
+     *     ogc literal string using a wildCard of *, a singleChar of ., and an
+     *     escape of !.  Leaves the <value> property unmodified.
+     * 
+     * Returns:
+     * {String} A string value.
+     */
+    regex2value: function() {
+        
+        var value = this.value;
+        
+        // replace ! with !!
+        value = value.replace(/!/g, "!!");
+
+        // replace \. with !. (watching out for \\.)
+        value = value.replace(/(\\)?\\\./g, function($0, $1) {
+            return $1 ? $0 : "!.";
+        });
+        
+        // replace \* with #* (watching out for \\*)
+        value = value.replace(/(\\)?\\\*/g, function($0, $1) {
+            return $1 ? $0 : "!*";
+        });
+        
+        // replace \\ with \
+        value = value.replace(/\\\\/g, "\\");
+
+        // convert .* to * (the sequence #.* is not allowed)
+        value = value.replace(/\.\*/g, "*");
+        
+        return value;
+    },
+    
+    /**
+     * APIMethod: clone
+     * Clones this filter.
+     * 
+     * Returns:
+     * {<OpenLayers.Filter.Comparison>} Clone of this filter.
+     */
+    clone: function() {
+        return OpenLayers.Util.extend(new OpenLayers.Filter.Comparison(), this);
+    },
+    
+    CLASS_NAME: "OpenLayers.Filter.Comparison"
+});
+
+
+OpenLayers.Filter.Comparison.EQUAL_TO                 = "==";
+OpenLayers.Filter.Comparison.NOT_EQUAL_TO             = "!=";
+OpenLayers.Filter.Comparison.LESS_THAN                = "<";
+OpenLayers.Filter.Comparison.GREATER_THAN             = ">";
+OpenLayers.Filter.Comparison.LESS_THAN_OR_EQUAL_TO    = "<=";
+OpenLayers.Filter.Comparison.GREATER_THAN_OR_EQUAL_TO = ">=";
+OpenLayers.Filter.Comparison.BETWEEN                  = "..";
+OpenLayers.Filter.Comparison.LIKE                     = "~";
+OpenLayers.Filter.Comparison.IS_NULL                  = "NULL";
+/* ======================================================================
+    OpenLayers/Format/Filter.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format/XML/VersionedOGC.js
+ * @requires OpenLayers/Filter/FeatureId.js
+ * @requires OpenLayers/Filter/Logical.js
+ * @requires OpenLayers/Filter/Comparison.js
+ */
+
+/**
+ * Class: OpenLayers.Format.Filter
+ * Read/Write ogc:Filter. Create a new instance with the <OpenLayers.Format.Filter>
+ *     constructor.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Format.XML.VersionedOGC>
+ */
+OpenLayers.Format.Filter = OpenLayers.Class(OpenLayers.Format.XML.VersionedOGC, {
+    
+    /**
+     * APIProperty: defaultVersion
+     * {String} Version number to assume if none found.  Default is "1.0.0".
+     */
+    defaultVersion: "1.0.0",
+    
+    /**
+     * APIMethod: write
+     * Write an ogc:Filter given a filter object.
+     *
+     * Parameters:
+     * filter - {<OpenLayers.Filter>} An filter.
+     * options - {Object} Optional configuration object.
+     *
+     * Returns:
+     * {Elment} An ogc:Filter element node.
+     */
+    
+    /**
+     * APIMethod: read
+     * Read and Filter doc and return an object representing the Filter.
+     *
+     * Parameters:
+     * data - {String | DOMElement} Data to read.
+     *
+     * Returns:
+     * {<OpenLayers.Filter>} A filter object.
+     */
+
+    CLASS_NAME: "OpenLayers.Format.Filter" 
+});
+/* ======================================================================
+    OpenLayers/Format/WFST.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format.js
+ */
+
+/**
+ * Function: OpenLayers.Format.WFST
+ * Used to create a versioned WFS protocol.  Default version is 1.0.0.
+ *
+ * Returns:
+ * {<OpenLayers.Format>} A WFST format of the given version.
+ */
+OpenLayers.Format.WFST = function(options) {
+    options = OpenLayers.Util.applyDefaults(
+        options, OpenLayers.Format.WFST.DEFAULTS
+    );
+    var cls = OpenLayers.Format.WFST["v"+options.version.replace(/\./g, "_")];
+    if(!cls) {
+        throw "Unsupported WFST version: " + options.version;
+    }
+    return new cls(options);
+};
+
+/**
+ * Constant: OpenLayers.Format.WFST.DEFAULTS
+ * {Object} Default properties for the WFST format.
+ */
+OpenLayers.Format.WFST.DEFAULTS = {
+    "version": "1.0.0"
+};
+/* ======================================================================
+    OpenLayers/Filter/Spatial.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Filter.js
+ */
+
+/**
+ * Class: OpenLayers.Filter.Spatial
+ * This class represents a spatial filter.
+ * Currently implemented: BBOX, DWithin and Intersects
+ * 
+ * Inherits from:
+ * - <OpenLayers.Filter>
+ */
+OpenLayers.Filter.Spatial = OpenLayers.Class(OpenLayers.Filter, {
+
+    /**
+     * APIProperty: type
+     * {String} Type of spatial filter.
+     *
+     * The type should be one of:
+     * - OpenLayers.Filter.Spatial.BBOX
+     * - OpenLayers.Filter.Spatial.INTERSECTS
+     * - OpenLayers.Filter.Spatial.DWITHIN
+     * - OpenLayers.Filter.Spatial.WITHIN
+     * - OpenLayers.Filter.Spatial.CONTAINS
+     */
+    type: null,
+    
+    /**
+     * APIProperty: property
+     * {String} Name of the context property to compare.
+     */
+    property: null,
+    
+    /**
+     * APIProperty: value
+     * {<OpenLayers.Bounds> || <OpenLayers.Geometry>} The bounds or geometry
+     *     to be used by the filter.  Use bounds for BBOX filters and geometry
+     *     for INTERSECTS or DWITHIN filters.
+     */
+    value: null,
+
+    /**
+     * APIProperty: distance
+     * {Number} The distance to use in a DWithin spatial filter.
+     */
+    distance: null,
+
+    /**
+     * APIProperty: distanceUnits
+     * {String} The units to use for the distance, e.g. 'm'.
+     */
+    distanceUnits: null,
+    
+    /** 
+     * Constructor: OpenLayers.Filter.Spatial
+     * Creates a spatial filter.
+     *
+     * Parameters:
+     * options - {Object} An optional object with properties to set on the
+     *     filter.
+     * 
+     * Returns:
+     * {<OpenLayers.Filter.Spatial>}
+     */
+
+   /**
+    * Method: evaluate
+    * Evaluates this filter for a specific feature.
+    * 
+    * Parameters:
+    * feature - {<OpenLayers.Feature.Vector>} feature to apply the filter to.
+    * 
+    * Returns:
+    * {Boolean} The feature meets filter criteria.
+    */
+    evaluate: function(feature) {
+        var intersect = false;
+        switch(this.type) {
+            case OpenLayers.Filter.Spatial.BBOX:
+            case OpenLayers.Filter.Spatial.INTERSECTS:
+                if(feature.geometry) {
+                    var geom = this.value;
+                    if(this.value.CLASS_NAME == "OpenLayers.Bounds") {
+                        geom = this.value.toGeometry();
+                    }
+                    if(feature.geometry.intersects(geom)) {
+                        intersect = true;
+                    }
+                }
+                break;
+            default:
+                throw new Error('evaluate is not implemented for this filter type.');
+        }
+        return intersect;
+    },
+
+    /**
+     * APIMethod: clone
+     * Clones this filter.
+     * 
+     * Returns:
+     * {<OpenLayers.Filter.Spatial>} Clone of this filter.
+     */
+    clone: function() {
+        var options = OpenLayers.Util.applyDefaults({
+            value: this.value && this.value.clone && this.value.clone()
+        }, this);
+        return new OpenLayers.Filter.Spatial(options);
+    },
+    CLASS_NAME: "OpenLayers.Filter.Spatial"
+});
+
+OpenLayers.Filter.Spatial.BBOX = "BBOX";
+OpenLayers.Filter.Spatial.INTERSECTS = "INTERSECTS";
+OpenLayers.Filter.Spatial.DWITHIN = "DWITHIN";
+OpenLayers.Filter.Spatial.WITHIN = "WITHIN";
+OpenLayers.Filter.Spatial.CONTAINS = "CONTAINS";
+/* ======================================================================
+    OpenLayers/Format/WFST/v1.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format/XML.js
+ * @requires OpenLayers/Format/WFST.js
+ * @requires OpenLayers/Filter/Spatial.js
+ * @requires OpenLayers/Filter/FeatureId.js
+ */
+
+/**
+ * Class: OpenLayers.Format.WFST.v1
+ * Superclass for WFST parsers.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Format.XML>
+ */
+OpenLayers.Format.WFST.v1 = OpenLayers.Class(OpenLayers.Format.XML, {
+    
+    /**
+     * Property: namespaces
+     * {Object} Mapping of namespace aliases to namespace URIs.
+     */
+    namespaces: {
+        xlink: "http://www.w3.org/1999/xlink",
+        xsi: "http://www.w3.org/2001/XMLSchema-instance",
+        wfs: "http://www.opengis.net/wfs",
+        gml: "http://www.opengis.net/gml",
+        ogc: "http://www.opengis.net/ogc",
+        ows: "http://www.opengis.net/ows"
+    },
+    
+    /**
+     * Property: defaultPrefix
+     */
+    defaultPrefix: "wfs",
+
+    /**
+     * Property: version
+     * {String} WFS version number.
+     */
+    version: null,
+
+    /**
+     * Property: schemaLocation
+     * {String} Schema location for a particular minor version.
+     */
+    schemaLocations: null,
+    
+    /**
+     * APIProperty: srsName
+     * {String} URI for spatial reference system.
+     */
+    srsName: null,
+
+    /**
+     * APIProperty: extractAttributes
+     * {Boolean} Extract attributes from GML.  Default is true.
+     */
+    extractAttributes: true,
+    
+    /**
+     * APIProperty: xy
+     * {Boolean} Order of the GML coordinate true:(x,y) or false:(y,x)
+     * Changing is not recommended, a new Format should be instantiated.
+     */ 
+    xy: true,
+
+    /**
+     * Property: stateName
+     * {Object} Maps feature states to node names.
+     */
+    stateName: null,
+    
+    /**
+     * Constructor: OpenLayers.Format.WFST.v1
+     * Instances of this class are not created directly.  Use the
+     *     <OpenLayers.Format.WFST.v1_0_0> or <OpenLayers.Format.WFST.v1_1_0>
+     *     constructor instead.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *     this instance.
+     */
+    initialize: function(options) {
+        // set state name mapping
+        this.stateName = {};
+        this.stateName[OpenLayers.State.INSERT] = "wfs:Insert";
+        this.stateName[OpenLayers.State.UPDATE] = "wfs:Update";
+        this.stateName[OpenLayers.State.DELETE] = "wfs:Delete";
+        OpenLayers.Format.XML.prototype.initialize.apply(this, [options]);
+    },
+    
+    /**
+     * Method: getSrsName
+     */
+    getSrsName: function(feature, options) {
+        var srsName = options && options.srsName;
+        if(!srsName) {
+            if(feature && feature.layer) {
+                srsName = feature.layer.projection.getCode();
+            } else {
+                srsName = this.srsName;
+            }
+        }
+        return srsName;
+    },
+
+    /**
+     * APIMethod: read
+     * Parse the response from a transaction.  Because WFS is split into
+     *     Transaction requests (create, update, and delete) and GetFeature
+     *     requests (read), this method handles parsing of both types of
+     *     responses.
+     *
+     * Parameters:
+     * data - {String | Document} The WFST document to read
+     * options - {Object} Options for the reader
+     *
+     * Valid options properties:
+     * output - {String} either "features" or "object". The default is
+     *     "features", which means that the method will return an array of
+     *     features. If set to "object", an object with a "features" property
+     *     and other properties read by the parser will be returned.
+     *
+     * Returns:
+     * {Array | Object} Output depending on the output option.
+     */
+    read: function(data, options) {
+        options = options || {};
+        OpenLayers.Util.applyDefaults(options, {
+            output: "features"
+        });
+        
+        if(typeof data == "string") { 
+            data = OpenLayers.Format.XML.prototype.read.apply(this, [data]);
+        }
+        if(data && data.nodeType == 9) {
+            data = data.documentElement;
+        }
+        var obj = {};
+        if(data) {
+            this.readNode(data, obj, true);
+        }
+        if(obj.features && options.output === "features") {
+            obj = obj.features;
+        }
+        return obj;
+    },
+    
+    /**
+     * Property: readers
+     * Contains public functions, grouped by namespace prefix, that will
+     *     be applied when a namespaced node is found matching the function
+     *     name.  The function will be applied in the scope of this parser
+     *     with two arguments: the node being read and a context object passed
+     *     from the parent.
+     */
+    readers: {
+        "wfs": {
+            "FeatureCollection": function(node, obj) {
+                obj.features = [];
+                this.readChildNodes(node, obj);
+            }
+        }
+    },
+    
+    /**
+     * Method: write
+     * Given an array of features, write a WFS transaction.  This assumes
+     *     the features have a state property that determines the operation
+     *     type - insert, update, or delete.
+     *
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>)} A list of features. See
+     *     below for a more detailed description of the influence of the
+     *     feature's *modified* property.
+     * options - {Object}
+     *
+     * feature.modified rules:
+     * If a feature has a modified property set, the following checks will be
+     * made before a feature's geometry or attribute is included in an Update
+     * transaction:
+     * - *modified* is not set at all: The geometry and all attributes will be
+     *     included.
+     * - *modified.geometry* is set (null or a geometry): The geometry will be
+     *     included. If *modified.attributes* is not set, all attributes will
+     *     be included.
+     * - *modified.attributes* is set: Only the attributes set (i.e. to null or
+     *     a value) in *modified.attributes* will be included. 
+     *     If *modified.geometry* is not set, the geometry will not be included.
+     *
+     * Valid options include:
+     * - *multi* {Boolean} If set to true, geometries will be casted to
+     *   Multi geometries before writing.
+     *
+     * Returns:
+     * {String} A serialized WFS transaction.
+     */
+    write: function(features, options) {
+        var node = this.writeNode("wfs:Transaction", {
+            features:features,
+            options: options
+        });
+        var value = this.schemaLocationAttr();
+        if(value) {
+            this.setAttributeNS(
+                node, this.namespaces["xsi"], "xsi:schemaLocation",  value
+            );
+        }
+        return OpenLayers.Format.XML.prototype.write.apply(this, [node]);
+    },
+    
+    /**
+     * Property: writers
+     * As a compliment to the readers property, this structure contains public
+     *     writing functions grouped by namespace alias and named like the
+     *     node names they produce.
+     */
+    writers: {
+        "wfs": {
+            "GetFeature": function(options) {
+                var node = this.createElementNSPlus("wfs:GetFeature", {
+                    attributes: {
+                        service: "WFS",
+                        version: this.version,
+                        handle: options && options.handle,
+                        outputFormat: options && options.outputFormat,
+                        maxFeatures: options && options.maxFeatures,
+                        "xsi:schemaLocation": this.schemaLocationAttr(options)
+                    }
+                });
+                if (typeof this.featureType == "string") {
+                    this.writeNode("Query", options, node);
+                } else {
+                    for (var i=0,len = this.featureType.length; i<len; i++) { 
+                        options.featureType = this.featureType[i]; 
+                        this.writeNode("Query", options, node); 
+                    } 
+                }
+                return node;
+            },
+            "Transaction": function(obj) {
+                obj = obj || {};
+                var options = obj.options || {};
+                var node = this.createElementNSPlus("wfs:Transaction", {
+                    attributes: {
+                        service: "WFS",
+                        version: this.version,
+                        handle: options.handle
+                    }
+                });
+                var i, len;
+                var features = obj.features;
+                if(features) {
+                    // temporarily re-assigning geometry types
+                    if (options.multi === true) {
+                        OpenLayers.Util.extend(this.geometryTypes, {
+                            "OpenLayers.Geometry.Point": "MultiPoint",
+                            "OpenLayers.Geometry.LineString": (this.multiCurve === true) ? "MultiCurve": "MultiLineString",
+                            "OpenLayers.Geometry.Polygon": (this.multiSurface === true) ? "MultiSurface" : "MultiPolygon"
+                        });
+                    }
+                    var name, feature;
+                    for(i=0, len=features.length; i<len; ++i) {
+                        feature = features[i];
+                        name = this.stateName[feature.state];
+                        if(name) {
+                            this.writeNode(name, {
+                                feature: feature, 
+                                options: options
+                            }, node);
+                        }
+                    }
+                    // switch back to original geometry types assignment
+                    if (options.multi === true) {
+                        this.setGeometryTypes();
+                    }
+                }
+                if (options.nativeElements) {
+                    for (i=0, len=options.nativeElements.length; i<len; ++i) {
+                        this.writeNode("wfs:Native", 
+                            options.nativeElements[i], node);
+                    }
+                }
+                return node;
+            },
+            "Native": function(nativeElement) {
+                var node = this.createElementNSPlus("wfs:Native", {
+                    attributes: {
+                        vendorId: nativeElement.vendorId,
+                        safeToIgnore: nativeElement.safeToIgnore
+                    },
+                    value: nativeElement.value
+                });
+                return node;
+            },
+            "Insert": function(obj) {
+                var feature = obj.feature;
+                var options = obj.options;
+                var node = this.createElementNSPlus("wfs:Insert", {
+                    attributes: {
+                        handle: options && options.handle
+                    }
+                });
+                this.srsName = this.getSrsName(feature);
+                this.writeNode("feature:_typeName", feature, node);
+                return node;
+            },
+            "Update": function(obj) {
+                var feature = obj.feature;
+                var options = obj.options;
+                var node = this.createElementNSPlus("wfs:Update", {
+                    attributes: {
+                        handle: options && options.handle,
+                        typeName: (this.featureNS ? this.featurePrefix + ":" : "") +
+                            this.featureType
+                    }
+                });
+                if(this.featureNS) {
+                    node.setAttribute("xmlns:" + this.featurePrefix, this.featureNS);
+                }
+                
+                // add in geometry
+                var modified = feature.modified;
+                if (this.geometryName !== null && (!modified || modified.geometry !== undefined)) {
+                    this.srsName = this.getSrsName(feature);
+                    this.writeNode(
+                        "Property", {name: this.geometryName, value: feature.geometry}, node
+                    );
+                }
+        
+                // add in attributes
+                for(var key in feature.attributes) {
+                    if(feature.attributes[key] !== undefined &&
+                                (!modified || !modified.attributes ||
+                                (modified.attributes && modified.attributes[key] !== undefined))) {
+                        this.writeNode(
+                            "Property", {name: key, value: feature.attributes[key]}, node
+                        );
+                    }
+                }
+                
+                // add feature id filter
+                this.writeNode("ogc:Filter", new OpenLayers.Filter.FeatureId({
+                    fids: [feature.fid]
+                }), node);
+        
+                return node;
+            },
+            "Property": function(obj) {
+                var node = this.createElementNSPlus("wfs:Property");
+                this.writeNode("Name", obj.name, node);
+                if(obj.value !== null) {
+                    this.writeNode("Value", obj.value, node);
+                }
+                return node;
+            },
+            "Name": function(name) {
+                return this.createElementNSPlus("wfs:Name", {value: name});
+            },
+            "Value": function(obj) {
+                var node;
+                if(obj instanceof OpenLayers.Geometry) {
+                    node = this.createElementNSPlus("wfs:Value");
+                    var geom = this.writeNode("feature:_geometry", obj).firstChild;
+                    node.appendChild(geom);
+                } else {
+                    node = this.createElementNSPlus("wfs:Value", {value: obj});                
+                }
+                return node;
+            },
+            "Delete": function(obj) {
+                var feature = obj.feature;
+                var options = obj.options;
+                var node = this.createElementNSPlus("wfs:Delete", {
+                    attributes: {
+                        handle: options && options.handle,
+                        typeName: (this.featureNS ? this.featurePrefix + ":" : "") +
+                            this.featureType
+                    }
+                });
+                if(this.featureNS) {
+                    node.setAttribute("xmlns:" + this.featurePrefix, this.featureNS);
+                }
+                this.writeNode("ogc:Filter", new OpenLayers.Filter.FeatureId({
+                    fids: [feature.fid]
+                }), node);
+                return node;
+            }
+        }
+    },
+
+    /**
+     * Method: schemaLocationAttr
+     * Generate the xsi:schemaLocation attribute value.
+     *
+     * Returns:
+     * {String} The xsi:schemaLocation attribute or undefined if none.
+     */
+    schemaLocationAttr: function(options) {
+        options = OpenLayers.Util.extend({
+            featurePrefix: this.featurePrefix,
+            schema: this.schema
+        }, options);
+        var schemaLocations = OpenLayers.Util.extend({}, this.schemaLocations);
+        if(options.schema) {
+            schemaLocations[options.featurePrefix] = options.schema;
+        }
+        var parts = [];
+        var uri;
+        for(var key in schemaLocations) {
+            uri = this.namespaces[key];
+            if(uri) {
+                parts.push(uri + " " + schemaLocations[key]);
+            }
+        }
+        var value = parts.join(" ") || undefined;
+        return value;
+    },
+    
+    /**
+     * Method: setFilterProperty
+     * Set the property of each spatial filter.
+     *
+     * Parameters:
+     * filter - {<OpenLayers.Filter>}
+     */
+    setFilterProperty: function(filter) {
+        if(filter.filters) {
+            for(var i=0, len=filter.filters.length; i<len; ++i) {
+                OpenLayers.Format.WFST.v1.prototype.setFilterProperty.call(this, filter.filters[i]);
+            }
+        } else {
+            if(filter instanceof OpenLayers.Filter.Spatial && !filter.property) {
+                // got a spatial filter without property, so set it
+                filter.property = this.geometryName;
+            }
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Format.WFST.v1" 
+
+});
+/* ======================================================================
+    OpenLayers/Geometry/Polygon.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Geometry/Collection.js
+ * @requires OpenLayers/Geometry/LinearRing.js
+ */
+
+/**
+ * Class: OpenLayers.Geometry.Polygon 
+ * Polygon is a collection of Geometry.LinearRings. 
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Geometry.Collection> 
+ *  - <OpenLayers.Geometry> 
+ */
+OpenLayers.Geometry.Polygon = OpenLayers.Class(
+  OpenLayers.Geometry.Collection, {
+
+    /**
+     * Property: componentTypes
+     * {Array(String)} An array of class names representing the types of
+     * components that the collection can include.  A null value means the
+     * component types are not restricted.
+     */
+    componentTypes: ["OpenLayers.Geometry.LinearRing"],
+
+    /**
+     * Constructor: OpenLayers.Geometry.Polygon
+     * Constructor for a Polygon geometry. 
+     * The first ring (this.component[0])is the outer bounds of the polygon and 
+     * all subsequent rings (this.component[1-n]) are internal holes.
+     *
+     *
+     * Parameters:
+     * components - {Array(<OpenLayers.Geometry.LinearRing>)} 
+     */
+
+    /** 
+     * APIMethod: getArea
+     * Calculated by subtracting the areas of the internal holes from the 
+     *   area of the outer hole.
+     * 
+     * Returns:
+     * {float} The area of the geometry
+     */
+    getArea: function() {
+        var area = 0.0;
+        if ( this.components && (this.components.length > 0)) {
+            area += Math.abs(this.components[0].getArea());
+            for (var i=1, len=this.components.length; i<len; i++) {
+                area -= Math.abs(this.components[i].getArea());
+            }
+        }
+        return area;
+    },
+
+    /** 
+     * APIMethod: getGeodesicArea
+     * Calculate the approximate area of the polygon were it projected onto
+     *     the earth.
+     *
+     * Parameters:
+     * projection - {<OpenLayers.Projection>} The spatial reference system
+     *     for the geometry coordinates.  If not provided, Geographic/WGS84 is
+     *     assumed.
+     * 
+     * Reference:
+     * Robert. G. Chamberlain and William H. Duquette, "Some Algorithms for
+     *     Polygons on a Sphere", JPL Publication 07-03, Jet Propulsion
+     *     Laboratory, Pasadena, CA, June 2007 http://trs-new.jpl.nasa.gov/dspace/handle/2014/40409
+     *
+     * Returns:
+     * {float} The approximate geodesic area of the polygon in square meters.
+     */
+    getGeodesicArea: function(projection) {
+        var area = 0.0;
+        if(this.components && (this.components.length > 0)) {
+            area += Math.abs(this.components[0].getGeodesicArea(projection));
+            for(var i=1, len=this.components.length; i<len; i++) {
+                area -= Math.abs(this.components[i].getGeodesicArea(projection));
+            }
+        }
+        return area;
+    },
+
+    /**
+     * Method: containsPoint
+     * Test if a point is inside a polygon.  Points on a polygon edge are
+     *     considered inside.
+     *
+     * Parameters:
+     * point - {<OpenLayers.Geometry.Point>}
+     *
+     * Returns:
+     * {Boolean | Number} The point is inside the polygon.  Returns 1 if the
+     *     point is on an edge.  Returns boolean otherwise.
+     */
+    containsPoint: function(point) {
+        var numRings = this.components.length;
+        var contained = false;
+        if(numRings > 0) {
+            // check exterior ring - 1 means on edge, boolean otherwise
+            contained = this.components[0].containsPoint(point);
+            if(contained !== 1) {
+                if(contained && numRings > 1) {
+                    // check interior rings
+                    var hole;
+                    for(var i=1; i<numRings; ++i) {
+                        hole = this.components[i].containsPoint(point);
+                        if(hole) {
+                            if(hole === 1) {
+                                // on edge
+                                contained = 1;
+                            } else {
+                                // in hole
+                                contained = false;
+                            }                            
+                            break;
+                        }
+                    }
+                }
+            }
+        }
+        return contained;
+    },
+
+    /**
+     * APIMethod: intersects
+     * Determine if the input geometry intersects this one.
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} Any type of geometry.
+     *
+     * Returns:
+     * {Boolean} The input geometry intersects this one.
+     */
+    intersects: function(geometry) {
+        var intersect = false;
+        var i, len;
+        if(geometry.CLASS_NAME == "OpenLayers.Geometry.Point") {
+            intersect = this.containsPoint(geometry);
+        } else if(geometry.CLASS_NAME == "OpenLayers.Geometry.LineString" ||
+                  geometry.CLASS_NAME == "OpenLayers.Geometry.LinearRing") {
+            // check if rings/linestrings intersect
+            for(i=0, len=this.components.length; i<len; ++i) {
+                intersect = geometry.intersects(this.components[i]);
+                if(intersect) {
+                    break;
+                }
+            }
+            if(!intersect) {
+                // check if this poly contains points of the ring/linestring
+                for(i=0, len=geometry.components.length; i<len; ++i) {
+                    intersect = this.containsPoint(geometry.components[i]);
+                    if(intersect) {
+                        break;
+                    }
+                }
+            }
+        } else {
+            for(i=0, len=geometry.components.length; i<len; ++ i) {
+                intersect = this.intersects(geometry.components[i]);
+                if(intersect) {
+                    break;
+                }
+            }
+        }
+        // check case where this poly is wholly contained by another
+        if(!intersect && geometry.CLASS_NAME == "OpenLayers.Geometry.Polygon") {
+            // exterior ring points will be contained in the other geometry
+            var ring = this.components[0];
+            for(i=0, len=ring.components.length; i<len; ++i) {
+                intersect = geometry.containsPoint(ring.components[i]);
+                if(intersect) {
+                    break;
+                }
+            }
+        }
+        return intersect;
+    },
+
+    /**
+     * APIMethod: distanceTo
+     * Calculate the closest distance between two geometries (on the x-y plane).
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>} The target geometry.
+     * options - {Object} Optional properties for configuring the distance
+     *     calculation.
+     *
+     * Valid options:
+     * details - {Boolean} Return details from the distance calculation.
+     *     Default is false.
+     * edge - {Boolean} Calculate the distance from this geometry to the
+     *     nearest edge of the target geometry.  Default is true.  If true,
+     *     calling distanceTo from a geometry that is wholly contained within
+     *     the target will result in a non-zero distance.  If false, whenever
+     *     geometries intersect, calling distanceTo will return 0.  If false,
+     *     details cannot be returned.
+     *
+     * Returns:
+     * {Number | Object} The distance between this geometry and the target.
+     *     If details is true, the return will be an object with distance,
+     *     x0, y0, x1, and y1 properties.  The x0 and y0 properties represent
+     *     the coordinates of the closest point on this geometry. The x1 and y1
+     *     properties represent the coordinates of the closest point on the
+     *     target geometry.
+     */
+    distanceTo: function(geometry, options) {
+        var edge = !(options && options.edge === false);
+        var result;
+        // this is the case where we might not be looking for distance to edge
+        if(!edge && this.intersects(geometry)) {
+            result = 0;
+        } else {
+            result = OpenLayers.Geometry.Collection.prototype.distanceTo.apply(
+                this, [geometry, options]
+            );
+        }
+        return result;
+    },
+
+    CLASS_NAME: "OpenLayers.Geometry.Polygon"
+});
+
+/**
+ * APIMethod: createRegularPolygon
+ * Create a regular polygon around a radius. Useful for creating circles 
+ * and the like.
+ *
+ * Parameters:
+ * origin - {<OpenLayers.Geometry.Point>} center of polygon.
+ * radius - {Float} distance to vertex, in map units.
+ * sides - {Integer} Number of sides. 20 approximates a circle.
+ * rotation - {Float} original angle of rotation, in degrees.
+ */
+OpenLayers.Geometry.Polygon.createRegularPolygon = function(origin, radius, sides, rotation) {  
+    var angle = Math.PI * ((1/sides) - (1/2));
+    if(rotation) {
+        angle += (rotation / 180) * Math.PI;
+    }
+    var rotatedAngle, x, y;
+    var points = [];
+    for(var i=0; i<sides; ++i) {
+        rotatedAngle = angle + (i * 2 * Math.PI / sides);
+        x = origin.x + (radius * Math.cos(rotatedAngle));
+        y = origin.y + (radius * Math.sin(rotatedAngle));
+        points.push(new OpenLayers.Geometry.Point(x, y));
+    }
+    var ring = new OpenLayers.Geometry.LinearRing(points);
+    return new OpenLayers.Geometry.Polygon([ring]);
+};
+/* ======================================================================
+    OpenLayers/Geometry/MultiPolygon.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Geometry/Collection.js
+ * @requires OpenLayers/Geometry/Polygon.js
+ */
+
+/**
+ * Class: OpenLayers.Geometry.MultiPolygon
+ * MultiPolygon is a geometry with multiple <OpenLayers.Geometry.Polygon>
+ * components.  Create a new instance with the <OpenLayers.Geometry.MultiPolygon>
+ * constructor.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Geometry.Collection>
+ */
+OpenLayers.Geometry.MultiPolygon = OpenLayers.Class(
+  OpenLayers.Geometry.Collection, {
+
+    /**
+     * Property: componentTypes
+     * {Array(String)} An array of class names representing the types of
+     * components that the collection can include.  A null value means the
+     * component types are not restricted.
+     */
+    componentTypes: ["OpenLayers.Geometry.Polygon"],
+
+    /**
+     * Constructor: OpenLayers.Geometry.MultiPolygon
+     * Create a new MultiPolygon geometry
+     *
+     * Parameters:
+     * components - {Array(<OpenLayers.Geometry.Polygon>)} An array of polygons
+     *              used to generate the MultiPolygon
+     *
+     */
+
+    CLASS_NAME: "OpenLayers.Geometry.MultiPolygon"
+});
+/* ======================================================================
+    OpenLayers/Format/GML.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format/XML.js
+ * @requires OpenLayers/Feature/Vector.js
+ * @requires OpenLayers/Geometry/Point.js
+ * @requires OpenLayers/Geometry/MultiPoint.js
+ * @requires OpenLayers/Geometry/LineString.js
+ * @requires OpenLayers/Geometry/MultiLineString.js
+ * @requires OpenLayers/Geometry/Polygon.js
+ * @requires OpenLayers/Geometry/MultiPolygon.js
+ */
+
+/**
+ * Class: OpenLayers.Format.GML
+ * Read/Write GML. Create a new instance with the <OpenLayers.Format.GML>
+ *     constructor.  Supports the GML simple features profile.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Format.XML>
+ */
+OpenLayers.Format.GML = OpenLayers.Class(OpenLayers.Format.XML, {
+    
+    /**
+     * APIProperty: featureNS
+     * {String} Namespace used for feature attributes.  Default is
+     *     "http://mapserver.gis.umn.edu/mapserver".
+     */
+    featureNS: "http://mapserver.gis.umn.edu/mapserver",
+    
+    /**
+     * APIProperty: featurePrefix
+     * {String} Namespace alias (or prefix) for feature nodes.  Default is
+     *     "feature".
+     */
+    featurePrefix: "feature",
+    
+    /**
+     * APIProperty: featureName
+     * {String} Element name for features. Default is "featureMember".
+     */
+    featureName: "featureMember", 
+    
+    /**
+     * APIProperty: layerName
+     * {String} Name of data layer. Default is "features".
+     */
+    layerName: "features",
+    
+    /**
+     * APIProperty: geometryName
+     * {String} Name of geometry element.  Defaults to "geometry".
+     */
+    geometryName: "geometry",
+    
+    /** 
+     * APIProperty: collectionName
+     * {String} Name of featureCollection element.
+     */
+    collectionName: "FeatureCollection",
+    
+    /**
+     * APIProperty: gmlns
+     * {String} GML Namespace.
+     */
+    gmlns: "http://www.opengis.net/gml",
+
+    /**
+     * APIProperty: extractAttributes
+     * {Boolean} Extract attributes from GML.
+     */
+    extractAttributes: true,
+    
+    /**
+     * APIProperty: xy
+     * {Boolean} Order of the GML coordinate true:(x,y) or false:(y,x)
+     * Changing is not recommended, a new Format should be instantiated.
+     */ 
+    xy: true,
+    
+    /**
+     * Constructor: OpenLayers.Format.GML
+     * Create a new parser for GML.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *     this instance.
+     */
+    initialize: function(options) {
+        // compile regular expressions once instead of every time they are used
+        this.regExes = {
+            trimSpace: (/^\s*|\s*$/g),
+            removeSpace: (/\s*/g),
+            splitSpace: (/\s+/),
+            trimComma: (/\s*,\s*/g)
+        };
+        OpenLayers.Format.XML.prototype.initialize.apply(this, [options]);
+    },
+
+    /**
+     * APIMethod: read
+     * Read data from a string, and return a list of features. 
+     * 
+     * Parameters:
+     * data - {String} or {DOMElement} data to read/parse.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Feature.Vector>)} An array of features.
+     */
+    read: function(data) {
+        if(typeof data == "string") { 
+            data = OpenLayers.Format.XML.prototype.read.apply(this, [data]);
+        }
+        var featureNodes = this.getElementsByTagNameNS(data.documentElement,
+                                                       this.gmlns,
+                                                       this.featureName);
+        var features = [];
+        for(var i=0; i<featureNodes.length; i++) {
+            var feature = this.parseFeature(featureNodes[i]);
+            if(feature) {
+                features.push(feature);
+            }
+        }
+        return features;
+    },
+    
+    /**
+     * Method: parseFeature
+     * This function is the core of the GML parsing code in OpenLayers.
+     *    It creates the geometries that are then attached to the returned
+     *    feature, and calls parseAttributes() to get attribute data out.
+     *    
+     * Parameters:
+     * node - {DOMElement} A GML feature node. 
+     */
+    parseFeature: function(node) {
+        // only accept one geometry per feature - look for highest "order"
+        var order = ["MultiPolygon", "Polygon",
+                     "MultiLineString", "LineString",
+                     "MultiPoint", "Point", "Envelope"];
+        // FIXME: In case we parse a feature with no geometry, but boundedBy an Envelope,
+        // this code creates a geometry derived from the Envelope. This is not correct.
+        var type, nodeList, geometry, parser;
+        for(var i=0; i<order.length; ++i) {
+            type = order[i];
+            nodeList = this.getElementsByTagNameNS(node, this.gmlns, type);
+            if(nodeList.length > 0) {
+                // only deal with first geometry of this type
+                parser = this.parseGeometry[type.toLowerCase()];
+                if(parser) {
+                    geometry = parser.apply(this, [nodeList[0]]);
+                    if (this.internalProjection && this.externalProjection) {
+                        geometry.transform(this.externalProjection, 
+                                           this.internalProjection); 
+                    }                       
+                } else {
+                    throw new TypeError("Unsupported geometry type: " + type);
+                }
+                // stop looking for different geometry types
+                break;
+            }
+        }
+
+        var bounds;
+        var boxNodes = this.getElementsByTagNameNS(node, this.gmlns, "Box");
+        for(i=0; i<boxNodes.length; ++i) {
+            var boxNode = boxNodes[i];
+            var box = this.parseGeometry["box"].apply(this, [boxNode]);
+            var parentNode = boxNode.parentNode;
+            var parentName = parentNode.localName ||
+                             parentNode.nodeName.split(":").pop();
+            if(parentName === "boundedBy") {
+                bounds = box;
+            } else {
+                geometry = box.toGeometry();
+            }
+        }
+        
+        // construct feature (optionally with attributes)
+        var attributes;
+        if(this.extractAttributes) {
+            attributes = this.parseAttributes(node);
+        }
+        var feature = new OpenLayers.Feature.Vector(geometry, attributes);
+        feature.bounds = bounds;
+        
+        feature.gml = {
+            featureType: node.firstChild.nodeName.split(":")[1],
+            featureNS: node.firstChild.namespaceURI,
+            featureNSPrefix: node.firstChild.prefix
+        };
+                
+        // assign fid - this can come from a "fid" or "id" attribute
+        var childNode = node.firstChild;
+        var fid;
+        while(childNode) {
+            if(childNode.nodeType == 1) {
+                fid = childNode.getAttribute("fid") ||
+                      childNode.getAttribute("id");
+                if(fid) {
+                    break;
+                }
+            }
+            childNode = childNode.nextSibling;
+        }
+        feature.fid = fid;
+        return feature;
+    },
+    
+    /**
+     * Property: parseGeometry
+     * Properties of this object are the functions that parse geometries based
+     *     on their type.
+     */
+    parseGeometry: {
+        
+        /**
+         * Method: parseGeometry.point
+         * Given a GML node representing a point geometry, create an OpenLayers
+         *     point geometry.
+         *
+         * Parameters:
+         * node - {DOMElement} A GML node.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry.Point>} A point geometry.
+         */
+        point: function(node) {
+            /**
+             * Three coordinate variations to consider:
+             * 1) <gml:pos>x y z</gml:pos>
+             * 2) <gml:coordinates>x, y, z</gml:coordinates>
+             * 3) <gml:coord><gml:X>x</gml:X><gml:Y>y</gml:Y></gml:coord>
+             */
+            var nodeList, coordString;
+            var coords = [];
+
+            // look for <gml:pos>
+            var nodeList = this.getElementsByTagNameNS(node, this.gmlns, "pos");
+            if(nodeList.length > 0) {
+                coordString = nodeList[0].firstChild.nodeValue;
+                coordString = coordString.replace(this.regExes.trimSpace, "");
+                coords = coordString.split(this.regExes.splitSpace);
+            }
+
+            // look for <gml:coordinates>
+            if(coords.length == 0) {
+                nodeList = this.getElementsByTagNameNS(node, this.gmlns,
+                                                       "coordinates");
+                if(nodeList.length > 0) {
+                    coordString = nodeList[0].firstChild.nodeValue;
+                    coordString = coordString.replace(this.regExes.removeSpace,
+                                                      "");
+                    coords = coordString.split(",");
+                }
+            }
+
+            // look for <gml:coord>
+            if(coords.length == 0) {
+                nodeList = this.getElementsByTagNameNS(node, this.gmlns,
+                                                       "coord");
+                if(nodeList.length > 0) {
+                    var xList = this.getElementsByTagNameNS(nodeList[0],
+                                                            this.gmlns, "X");
+                    var yList = this.getElementsByTagNameNS(nodeList[0],
+                                                            this.gmlns, "Y");
+                    if(xList.length > 0 && yList.length > 0) {
+                        coords = [xList[0].firstChild.nodeValue,
+                                  yList[0].firstChild.nodeValue];
+                    }
+                }
+            }
+                
+            // preserve third dimension
+            if(coords.length == 2) {
+                coords[2] = null;
+            }
+            
+            if (this.xy) {
+                return new OpenLayers.Geometry.Point(coords[0], coords[1],
+                                                 coords[2]);
+            }
+            else{
+                return new OpenLayers.Geometry.Point(coords[1], coords[0],
+                                                 coords[2]);
+            }
+        },
+        
+        /**
+         * Method: parseGeometry.multipoint
+         * Given a GML node representing a multipoint geometry, create an
+         *     OpenLayers multipoint geometry.
+         *
+         * Parameters:
+         * node - {DOMElement} A GML node.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry.MultiPoint>} A multipoint geometry.
+         */
+        multipoint: function(node) {
+            var nodeList = this.getElementsByTagNameNS(node, this.gmlns,
+                                                       "Point");
+            var components = [];
+            if(nodeList.length > 0) {
+                var point;
+                for(var i=0; i<nodeList.length; ++i) {
+                    point = this.parseGeometry.point.apply(this, [nodeList[i]]);
+                    if(point) {
+                        components.push(point);
+                    }
+                }
+            }
+            return new OpenLayers.Geometry.MultiPoint(components);
+        },
+        
+        /**
+         * Method: parseGeometry.linestring
+         * Given a GML node representing a linestring geometry, create an
+         *     OpenLayers linestring geometry.
+         *
+         * Parameters:
+         * node - {DOMElement} A GML node.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry.LineString>} A linestring geometry.
+         */
+        linestring: function(node, ring) {
+            /**
+             * Two coordinate variations to consider:
+             * 1) <gml:posList dimension="d">x0 y0 z0 x1 y1 z1</gml:posList>
+             * 2) <gml:coordinates>x0, y0, z0 x1, y1, z1</gml:coordinates>
+             */
+            var nodeList, coordString;
+            var coords = [];
+            var points = [];
+
+            // look for <gml:posList>
+            nodeList = this.getElementsByTagNameNS(node, this.gmlns, "posList");
+            if(nodeList.length > 0) {
+                coordString = this.getChildValue(nodeList[0]);
+                coordString = coordString.replace(this.regExes.trimSpace, "");
+                coords = coordString.split(this.regExes.splitSpace);
+                var dim = parseInt(nodeList[0].getAttribute("dimension"));
+                var j, x, y, z;
+                for(var i=0; i<coords.length/dim; ++i) {
+                    j = i * dim;
+                    x = coords[j];
+                    y = coords[j+1];
+                    z = (dim == 2) ? null : coords[j+2];
+                    if (this.xy) {
+                        points.push(new OpenLayers.Geometry.Point(x, y, z));
+                    } else {
+                        points.push(new OpenLayers.Geometry.Point(y, x, z));
+                    }
+                }
+            }
+
+            // look for <gml:coordinates>
+            if(coords.length == 0) {
+                nodeList = this.getElementsByTagNameNS(node, this.gmlns,
+                                                       "coordinates");
+                if(nodeList.length > 0) {
+                    coordString = this.getChildValue(nodeList[0]);
+                    coordString = coordString.replace(this.regExes.trimSpace,
+                                                      "");
+                    coordString = coordString.replace(this.regExes.trimComma,
+                                                      ",");
+                    var pointList = coordString.split(this.regExes.splitSpace);
+                    for(var i=0; i<pointList.length; ++i) {
+                        coords = pointList[i].split(",");
+                        if(coords.length == 2) {
+                            coords[2] = null;
+                        }
+                        if (this.xy) {
+                            points.push(new OpenLayers.Geometry.Point(coords[0],
+                                                                  coords[1],
+                                                                  coords[2]));
+                        } else {
+                            points.push(new OpenLayers.Geometry.Point(coords[1],
+                                                                  coords[0],
+                                                                  coords[2]));
+                        }
+                    }
+                }
+            }
+
+            var line = null;
+            if(points.length != 0) {
+                if(ring) {
+                    line = new OpenLayers.Geometry.LinearRing(points);
+                } else {
+                    line = new OpenLayers.Geometry.LineString(points);
+                }
+            }
+            return line;
+        },
+        
+        /**
+         * Method: parseGeometry.multilinestring
+         * Given a GML node representing a multilinestring geometry, create an
+         *     OpenLayers multilinestring geometry.
+         *
+         * Parameters:
+         * node - {DOMElement} A GML node.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry.MultiLineString>} A multilinestring geometry.
+         */
+        multilinestring: function(node) {
+            var nodeList = this.getElementsByTagNameNS(node, this.gmlns,
+                                                       "LineString");
+            var components = [];
+            if(nodeList.length > 0) {
+                var line;
+                for(var i=0; i<nodeList.length; ++i) {
+                    line = this.parseGeometry.linestring.apply(this,
+                                                               [nodeList[i]]);
+                    if(line) {
+                        components.push(line);
+                    }
+                }
+            }
+            return new OpenLayers.Geometry.MultiLineString(components);
+        },
+        
+        /**
+         * Method: parseGeometry.polygon
+         * Given a GML node representing a polygon geometry, create an
+         *     OpenLayers polygon geometry.
+         *
+         * Parameters:
+         * node - {DOMElement} A GML node.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry.Polygon>} A polygon geometry.
+         */
+        polygon: function(node) {
+            var nodeList = this.getElementsByTagNameNS(node, this.gmlns,
+                                                       "LinearRing");
+            var components = [];
+            if(nodeList.length > 0) {
+                // this assumes exterior ring first, inner rings after
+                var ring;
+                for(var i=0; i<nodeList.length; ++i) {
+                    ring = this.parseGeometry.linestring.apply(this,
+                                                        [nodeList[i], true]);
+                    if(ring) {
+                        components.push(ring);
+                    }
+                }
+            }
+            return new OpenLayers.Geometry.Polygon(components);
+        },
+        
+        /**
+         * Method: parseGeometry.multipolygon
+         * Given a GML node representing a multipolygon geometry, create an
+         *     OpenLayers multipolygon geometry.
+         *
+         * Parameters:
+         * node - {DOMElement} A GML node.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry.MultiPolygon>} A multipolygon geometry.
+         */
+        multipolygon: function(node) {
+            var nodeList = this.getElementsByTagNameNS(node, this.gmlns,
+                                                       "Polygon");
+            var components = [];
+            if(nodeList.length > 0) {
+                var polygon;
+                for(var i=0; i<nodeList.length; ++i) {
+                    polygon = this.parseGeometry.polygon.apply(this,
+                                                               [nodeList[i]]);
+                    if(polygon) {
+                        components.push(polygon);
+                    }
+                }
+            }
+            return new OpenLayers.Geometry.MultiPolygon(components);
+        },
+        
+        envelope: function(node) {
+            var components = [];
+            var coordString;
+            var envelope;
+            
+            var lpoint = this.getElementsByTagNameNS(node, this.gmlns, "lowerCorner");
+            if (lpoint.length > 0) {
+                var coords = [];
+                
+                if(lpoint.length > 0) {
+                    coordString = lpoint[0].firstChild.nodeValue;
+                    coordString = coordString.replace(this.regExes.trimSpace, "");
+                    coords = coordString.split(this.regExes.splitSpace);
+                }
+                
+                if(coords.length == 2) {
+                    coords[2] = null;
+                }
+                if (this.xy) {
+                    var lowerPoint = new OpenLayers.Geometry.Point(coords[0], coords[1],coords[2]);
+                } else {
+                    var lowerPoint = new OpenLayers.Geometry.Point(coords[1], coords[0],coords[2]);
+                }
+            }
+            
+            var upoint = this.getElementsByTagNameNS(node, this.gmlns, "upperCorner");
+            if (upoint.length > 0) {
+                var coords = [];
+                
+                if(upoint.length > 0) {
+                    coordString = upoint[0].firstChild.nodeValue;
+                    coordString = coordString.replace(this.regExes.trimSpace, "");
+                    coords = coordString.split(this.regExes.splitSpace);
+                }
+                
+                if(coords.length == 2) {
+                    coords[2] = null;
+                }
+                if (this.xy) {
+                    var upperPoint = new OpenLayers.Geometry.Point(coords[0], coords[1],coords[2]);
+                } else {
+                    var upperPoint = new OpenLayers.Geometry.Point(coords[1], coords[0],coords[2]);
+                }
+            }
+            
+            if (lowerPoint && upperPoint) {
+                components.push(new OpenLayers.Geometry.Point(lowerPoint.x, lowerPoint.y));
+                components.push(new OpenLayers.Geometry.Point(upperPoint.x, lowerPoint.y));
+                components.push(new OpenLayers.Geometry.Point(upperPoint.x, upperPoint.y));
+                components.push(new OpenLayers.Geometry.Point(lowerPoint.x, upperPoint.y));
+                components.push(new OpenLayers.Geometry.Point(lowerPoint.x, lowerPoint.y));
+                
+                var ring = new OpenLayers.Geometry.LinearRing(components);
+                envelope = new OpenLayers.Geometry.Polygon([ring]);
+            }
+            return envelope; 
+        },
+
+        /**
+         * Method: parseGeometry.box
+         * Given a GML node representing a box geometry, create an
+         *     OpenLayers.Bounds.
+         *
+         * Parameters:
+         * node - {DOMElement} A GML node.
+         *
+         * Returns:
+         * {<OpenLayers.Bounds>} A bounds representing the box.
+         */
+        box: function(node) {
+            var nodeList = this.getElementsByTagNameNS(node, this.gmlns,
+                                                   "coordinates");
+            var coordString;
+            var coords, beginPoint = null, endPoint = null;
+            if (nodeList.length > 0) {
+                coordString = nodeList[0].firstChild.nodeValue;
+                coords = coordString.split(" ");
+                if (coords.length == 2) {
+                    beginPoint = coords[0].split(",");
+                    endPoint = coords[1].split(",");
+                }
+            }
+            if (beginPoint !== null && endPoint !== null) {
+                return new OpenLayers.Bounds(parseFloat(beginPoint[0]),
+                    parseFloat(beginPoint[1]),
+                    parseFloat(endPoint[0]),
+                    parseFloat(endPoint[1]) );
+            }
+        }
+        
+    },
+    
+    /**
+     * Method: parseAttributes
+     *
+     * Parameters:
+     * node - {DOMElement}
+     *
+     * Returns:
+     * {Object} An attributes object.
+     */
+    parseAttributes: function(node) {
+        var attributes = {};
+        // assume attributes are children of the first type 1 child
+        var childNode = node.firstChild;
+        var children, i, child, grandchildren, grandchild, name, value;
+        while(childNode) {
+            if(childNode.nodeType == 1) {
+                // attributes are type 1 children with one type 3 child
+                children = childNode.childNodes;
+                for(i=0; i<children.length; ++i) {
+                    child = children[i];
+                    if(child.nodeType == 1) {
+                        grandchildren = child.childNodes;
+                        if(grandchildren.length == 1) {
+                            grandchild = grandchildren[0];
+                            if(grandchild.nodeType == 3 ||
+                               grandchild.nodeType == 4) {
+                                name = (child.prefix) ?
+                                        child.nodeName.split(":")[1] :
+                                        child.nodeName;
+                                value = grandchild.nodeValue.replace(
+                                                this.regExes.trimSpace, "");
+                                attributes[name] = value;
+                            }
+                        } else {
+                            // If child has no childNodes (grandchildren),
+                            // set an attribute with null value.
+                            // e.g. <prefix:fieldname/> becomes
+                            // {fieldname: null}
+                            attributes[child.nodeName.split(":").pop()] = null;
+                        }
+                    }
+                }
+                break;
+            }
+            childNode = childNode.nextSibling;
+        }
+        return attributes;
+    },
+    
+    /**
+     * APIMethod: write
+     * Generate a GML document string given a list of features. 
+     * 
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>)} List of features to
+     *     serialize into a string.
+     *
+     * Returns:
+     * {String} A string representing the GML document.
+     */
+    write: function(features) {
+        if(!(OpenLayers.Util.isArray(features))) {
+            features = [features];
+        }
+        var gml = this.createElementNS("http://www.opengis.net/wfs",
+                                       "wfs:" + this.collectionName);
+        for(var i=0; i<features.length; i++) {
+            gml.appendChild(this.createFeatureXML(features[i]));
+        }
+        return OpenLayers.Format.XML.prototype.write.apply(this, [gml]);
+    },
+
+    /** 
+     * Method: createFeatureXML
+     * Accept an OpenLayers.Feature.Vector, and build a GML node for it.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} The feature to be built as GML.
+     *
+     * Returns:
+     * {DOMElement} A node reprensting the feature in GML.
+     */
+    createFeatureXML: function(feature) {
+        var geometry = feature.geometry;
+        var geometryNode = this.buildGeometryNode(geometry);
+        var geomContainer = this.createElementNS(this.featureNS,
+                                                 this.featurePrefix + ":" +
+                                                 this.geometryName);
+        geomContainer.appendChild(geometryNode);
+        var featureNode = this.createElementNS(this.gmlns,
+                                               "gml:" + this.featureName);
+        var featureContainer = this.createElementNS(this.featureNS,
+                                                    this.featurePrefix + ":" +
+                                                    this.layerName);
+        var fid = feature.fid || feature.id;
+        featureContainer.setAttribute("fid", fid);
+        featureContainer.appendChild(geomContainer);
+        for(var attr in feature.attributes) {
+            var attrText = this.createTextNode(feature.attributes[attr]); 
+            var nodename = attr.substring(attr.lastIndexOf(":") + 1);
+            var attrContainer = this.createElementNS(this.featureNS,
+                                                     this.featurePrefix + ":" +
+                                                     nodename);
+            attrContainer.appendChild(attrText);
+            featureContainer.appendChild(attrContainer);
+        }    
+        featureNode.appendChild(featureContainer);
+        return featureNode;
+    },
+    
+    /**
+     * APIMethod: buildGeometryNode
+     */
+    buildGeometryNode: function(geometry) {
+        if (this.externalProjection && this.internalProjection) {
+            geometry = geometry.clone();
+            geometry.transform(this.internalProjection, 
+                               this.externalProjection);
+        }    
+        var className = geometry.CLASS_NAME;
+        var type = className.substring(className.lastIndexOf(".") + 1);
+        var builder = this.buildGeometry[type.toLowerCase()];
+        return builder.apply(this, [geometry]);
+    },
+
+    /**
+     * Property: buildGeometry
+     * Object containing methods to do the actual geometry node building
+     *     based on geometry type.
+     */
+    buildGeometry: {
+        // TBD retrieve the srs from layer
+        // srsName is non-standard, so not including it until it's right.
+        // gml.setAttribute("srsName",
+        //                  "http://www.opengis.net/gml/srs/epsg.xml#4326");
+
+        /**
+         * Method: buildGeometry.point
+         * Given an OpenLayers point geometry, create a GML point.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.Point>} A point geometry.
+         *
+         * Returns:
+         * {DOMElement} A GML point node.
+         */
+        point: function(geometry) {
+            var gml = this.createElementNS(this.gmlns, "gml:Point");
+            gml.appendChild(this.buildCoordinatesNode(geometry));
+            return gml;
+        },
+        
+        /**
+         * Method: buildGeometry.multipoint
+         * Given an OpenLayers multipoint geometry, create a GML multipoint.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.MultiPoint>} A multipoint geometry.
+         *
+         * Returns:
+         * {DOMElement} A GML multipoint node.
+         */
+        multipoint: function(geometry) {
+            var gml = this.createElementNS(this.gmlns, "gml:MultiPoint");
+            var points = geometry.components;
+            var pointMember, pointGeom;
+            for(var i=0; i<points.length; i++) { 
+                pointMember = this.createElementNS(this.gmlns,
+                                                   "gml:pointMember");
+                pointGeom = this.buildGeometry.point.apply(this,
+                                                               [points[i]]);
+                pointMember.appendChild(pointGeom);
+                gml.appendChild(pointMember);
+            }
+            return gml;            
+        },
+        
+        /**
+         * Method: buildGeometry.linestring
+         * Given an OpenLayers linestring geometry, create a GML linestring.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.LineString>} A linestring geometry.
+         *
+         * Returns:
+         * {DOMElement} A GML linestring node.
+         */
+        linestring: function(geometry) {
+            var gml = this.createElementNS(this.gmlns, "gml:LineString");
+            gml.appendChild(this.buildCoordinatesNode(geometry));
+            return gml;
+        },
+        
+        /**
+         * Method: buildGeometry.multilinestring
+         * Given an OpenLayers multilinestring geometry, create a GML
+         *     multilinestring.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.MultiLineString>} A multilinestring
+         *     geometry.
+         *
+         * Returns:
+         * {DOMElement} A GML multilinestring node.
+         */
+        multilinestring: function(geometry) {
+            var gml = this.createElementNS(this.gmlns, "gml:MultiLineString");
+            var lines = geometry.components;
+            var lineMember, lineGeom;
+            for(var i=0; i<lines.length; ++i) {
+                lineMember = this.createElementNS(this.gmlns,
+                                                  "gml:lineStringMember");
+                lineGeom = this.buildGeometry.linestring.apply(this,
+                                                                   [lines[i]]);
+                lineMember.appendChild(lineGeom);
+                gml.appendChild(lineMember);
+            }
+            return gml;
+        },
+        
+        /**
+         * Method: buildGeometry.linearring
+         * Given an OpenLayers linearring geometry, create a GML linearring.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.LinearRing>} A linearring geometry.
+         *
+         * Returns:
+         * {DOMElement} A GML linearring node.
+         */
+        linearring: function(geometry) {
+            var gml = this.createElementNS(this.gmlns, "gml:LinearRing");
+            gml.appendChild(this.buildCoordinatesNode(geometry));
+            return gml;
+        },
+        
+        /**
+         * Method: buildGeometry.polygon
+         * Given an OpenLayers polygon geometry, create a GML polygon.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.Polygon>} A polygon geometry.
+         *
+         * Returns:
+         * {DOMElement} A GML polygon node.
+         */
+        polygon: function(geometry) {
+            var gml = this.createElementNS(this.gmlns, "gml:Polygon");
+            var rings = geometry.components;
+            var ringMember, ringGeom, type;
+            for(var i=0; i<rings.length; ++i) {
+                type = (i==0) ? "outerBoundaryIs" : "innerBoundaryIs";
+                ringMember = this.createElementNS(this.gmlns,
+                                                  "gml:" + type);
+                ringGeom = this.buildGeometry.linearring.apply(this,
+                                                                   [rings[i]]);
+                ringMember.appendChild(ringGeom);
+                gml.appendChild(ringMember);
+            }
+            return gml;
+        },
+        
+        /**
+         * Method: buildGeometry.multipolygon
+         * Given an OpenLayers multipolygon geometry, create a GML multipolygon.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.MultiPolygon>} A multipolygon
+         *     geometry.
+         *
+         * Returns:
+         * {DOMElement} A GML multipolygon node.
+         */
+        multipolygon: function(geometry) {
+            var gml = this.createElementNS(this.gmlns, "gml:MultiPolygon");
+            var polys = geometry.components;
+            var polyMember, polyGeom;
+            for(var i=0; i<polys.length; ++i) {
+                polyMember = this.createElementNS(this.gmlns,
+                                                  "gml:polygonMember");
+                polyGeom = this.buildGeometry.polygon.apply(this,
+                                                                [polys[i]]);
+                polyMember.appendChild(polyGeom);
+                gml.appendChild(polyMember);
+            }
+            return gml;
+
+        },
+ 
+        /**
+         * Method: buildGeometry.bounds
+         * Given an OpenLayers bounds, create a GML box.
+         *
+         * Parameters:
+         * bounds - {<OpenLayers.Geometry.Bounds>} A bounds object.
+         *
+         * Returns:
+         * {DOMElement} A GML box node.
+         */
+        bounds: function(bounds) {
+            var gml = this.createElementNS(this.gmlns, "gml:Box");
+            gml.appendChild(this.buildCoordinatesNode(bounds));
+            return gml;
+        }
+    },
+
+    /**
+     * Method: buildCoordinates
+     * builds the coordinates XmlNode
+     * (code)
+     * <gml:coordinates decimal="." cs="," ts=" ">...</gml:coordinates>
+     * (end)
+     *
+     * Parameters: 
+     * geometry - {<OpenLayers.Geometry>} 
+     *
+     * Returns:
+     * {XmlNode} created xmlNode
+     */
+    buildCoordinatesNode: function(geometry) {
+        var coordinatesNode = this.createElementNS(this.gmlns,
+                                                   "gml:coordinates");
+        coordinatesNode.setAttribute("decimal", ".");
+        coordinatesNode.setAttribute("cs", ",");
+        coordinatesNode.setAttribute("ts", " ");
+
+        var parts = [];
+
+        if(geometry instanceof OpenLayers.Bounds){
+            parts.push(geometry.left + "," + geometry.bottom);
+            parts.push(geometry.right + "," + geometry.top);
+        } else {
+            var points = (geometry.components) ? geometry.components : [geometry];
+            for(var i=0; i<points.length; i++) {
+                parts.push(points[i].x + "," + points[i].y);                
+            }            
+        }
+
+        var txtNode = this.createTextNode(parts.join(" "));
+        coordinatesNode.appendChild(txtNode);
+        
+        return coordinatesNode;
+    },
+
+    CLASS_NAME: "OpenLayers.Format.GML" 
+});
+/* ======================================================================
+    OpenLayers/Format/GML/Base.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format/XML.js
+ * @requires OpenLayers/Format/GML.js
+ */
+
+/**
+ * Though required in the full build, if the GML format is excluded, we set
+ * the namespace here.
+ */
+if(!OpenLayers.Format.GML) {
+    OpenLayers.Format.GML = {};
+}
+
+/**
+ * Class: OpenLayers.Format.GML.Base
+ * Superclass for GML parsers.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Format.XML>
+ */
+OpenLayers.Format.GML.Base = OpenLayers.Class(OpenLayers.Format.XML, {
+    
+    /**
+     * Property: namespaces
+     * {Object} Mapping of namespace aliases to namespace URIs.
+     */
+    namespaces: {
+        gml: "http://www.opengis.net/gml",
+        xlink: "http://www.w3.org/1999/xlink",
+        xsi: "http://www.w3.org/2001/XMLSchema-instance",
+        wfs: "http://www.opengis.net/wfs" // this is a convenience for reading wfs:FeatureCollection
+    },
+    
+    /**
+     * Property: defaultPrefix
+     */
+    defaultPrefix: "gml",
+
+    /**
+     * Property: schemaLocation
+     * {String} Schema location for a particular minor version.
+     */
+    schemaLocation: null,
+    
+    /**
+     * APIProperty: featureType
+     * {Array(String) or String} The local (without prefix) feature typeName(s).
+     */
+    featureType: null,
+    
+    /**
+     * APIProperty: featureNS
+     * {String} The feature namespace.  Must be set in the options at
+     *     construction.
+     */
+    featureNS: null,
+
+    /**
+     * APIProperty: geometry
+     * {String} Name of geometry element.  Defaults to "geometry". If null, it
+     * will be set on <read> when the first geometry is parsed.
+     */
+    geometryName: "geometry",
+
+    /**
+     * APIProperty: extractAttributes
+     * {Boolean} Extract attributes from GML.  Default is true.
+     */
+    extractAttributes: true,
+    
+    /**
+     * APIProperty: srsName
+     * {String} URI for spatial reference system.  This is optional for
+     *     single part geometries and mandatory for collections and multis.
+     *     If set, the srsName attribute will be written for all geometries.
+     *     Default is null.
+     */
+    srsName: null,
+
+    /**
+     * APIProperty: xy
+     * {Boolean} Order of the GML coordinate true:(x,y) or false:(y,x)
+     * Changing is not recommended, a new Format should be instantiated.
+     */ 
+    xy: true,
+
+    /**
+     * Property: geometryTypes
+     * {Object} Maps OpenLayers geometry class names to GML element names.
+     *     Use <setGeometryTypes> before accessing this property.
+     */
+    geometryTypes: null,
+
+    /**
+     * Property: singleFeatureType
+     * {Boolean} True if there is only 1 featureType, and not an array
+     *     of featuretypes.
+     */
+    singleFeatureType: null,
+    
+    /**
+     * Property: autoConfig
+     * {Boolean} Indicates if the format was configured without a <featureNS>,
+     * but auto-configured <featureNS> and <featureType> during read.
+     * Subclasses making use of <featureType> auto-configuration should make
+     * the first call to the <readNode> method (usually in the read method)
+     * with true as 3rd argument, so the auto-configured featureType can be
+     * reset and the format can be reused for subsequent reads with data from
+     * different featureTypes. Set to false after read if you want to keep the
+     * auto-configured values.
+     */
+
+    /**
+     * Property: regExes
+     * Compiled regular expressions for manipulating strings.
+     */
+    regExes: {
+        trimSpace: (/^\s*|\s*$/g),
+        removeSpace: (/\s*/g),
+        splitSpace: (/\s+/),
+        trimComma: (/\s*,\s*/g),
+        featureMember: (/^(.*:)?featureMembers?$/)
+    },
+
+    /**
+     * Constructor: OpenLayers.Format.GML.Base
+     * Instances of this class are not created directly.  Use the
+     *     <OpenLayers.Format.GML.v2> or <OpenLayers.Format.GML.v3> constructor
+     *     instead.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *     this instance.
+     *
+     * Valid options properties:
+     * featureType - {Array(String) or String} Local (without prefix) feature 
+     *     typeName(s) (required for write).
+     * featureNS - {String} Feature namespace (required for write).
+     * geometryName - {String} Geometry element name (required for write).
+     */
+    initialize: function(options) {
+        OpenLayers.Format.XML.prototype.initialize.apply(this, [options]);
+        this.setGeometryTypes();
+        if(options && options.featureNS) {
+            this.setNamespace("feature", options.featureNS);
+        }
+        this.singleFeatureType = !options || (typeof options.featureType === "string");
+    },
+    
+    /**
+     * Method: read
+     *
+     * Parameters:
+     * data - {DOMElement} A gml:featureMember element, a gml:featureMembers
+     *     element, or an element containing either of the above at any level.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Feature.Vector>)} An array of features.
+     */
+    read: function(data) {
+        if(typeof data == "string") { 
+            data = OpenLayers.Format.XML.prototype.read.apply(this, [data]);
+        }
+        if(data && data.nodeType == 9) {
+            data = data.documentElement;
+        }
+        var features = [];
+        this.readNode(data, {features: features}, true);
+        if(features.length == 0) {
+            // look for gml:featureMember elements
+            var elements = this.getElementsByTagNameNS(
+                data, this.namespaces.gml, "featureMember"
+            );
+            if(elements.length) {
+                for(var i=0, len=elements.length; i<len; ++i) {
+                    this.readNode(elements[i], {features: features}, true);
+                }
+            } else {
+                // look for gml:featureMembers elements (this is v3, but does no harm here)
+                var elements = this.getElementsByTagNameNS(
+                    data, this.namespaces.gml, "featureMembers"
+                );
+                if(elements.length) {
+                    // there can be only one
+                    this.readNode(elements[0], {features: features}, true);
+                }
+            }
+        }
+        return features;
+    },
+    
+    /**
+     * Method: readNode
+     * Shorthand for applying one of the named readers given the node
+     *     namespace and local name.  Readers take two args (node, obj) and
+     *     generally extend or modify the second.
+     *
+     * Parameters:
+     * node - {DOMElement} The node to be read (required).
+     * obj - {Object} The object to be modified (optional).
+     * first - {Boolean} Should be set to true for the first node read. This
+     *     is usually the readNode call in the read method. Without this being
+     *     set, auto-configured properties will stick on subsequent reads.
+     *
+     * Returns:
+     * {Object} The input object, modified (or a new one if none was provided).
+     */
+    readNode: function(node, obj, first) {
+        // on subsequent calls of format.read(), we want to reset auto-
+        // configured properties and auto-configure again.
+        if (first === true && this.autoConfig === true) {
+            this.featureType = null;
+            delete this.namespaceAlias[this.featureNS];
+            delete this.namespaces["feature"];
+            this.featureNS = null;
+        }
+        // featureType auto-configuration
+        if (!this.featureNS && (!(node.prefix in this.namespaces) &&
+                node.parentNode.namespaceURI == this.namespaces["gml"] &&
+                this.regExes.featureMember.test(node.parentNode.nodeName))) {
+            this.featureType = node.nodeName.split(":").pop();
+            this.setNamespace("feature", node.namespaceURI);
+            this.featureNS = node.namespaceURI;
+            this.autoConfig = true;
+        }
+        return OpenLayers.Format.XML.prototype.readNode.apply(this, [node, obj]);
+    },
+    
+    /**
+     * Property: readers
+     * Contains public functions, grouped by namespace prefix, that will
+     *     be applied when a namespaced node is found matching the function
+     *     name.  The function will be applied in the scope of this parser
+     *     with two arguments: the node being read and a context object passed
+     *     from the parent.
+     */
+    readers: {
+        "gml": {
+            "_inherit": function(node, obj, container) {
+                // To be implemented by version specific parsers
+            },
+            "featureMember": function(node, obj) {
+                this.readChildNodes(node, obj);
+            },
+            "featureMembers": function(node, obj) {
+                this.readChildNodes(node, obj);                
+            },
+            "name": function(node, obj) {
+                obj.name = this.getChildValue(node);
+            },
+            "boundedBy": function(node, obj) {
+                var container = {};
+                this.readChildNodes(node, container);
+                if(container.components && container.components.length > 0) {
+                    obj.bounds = container.components[0];
+                }
+            },
+            "Point": function(node, container) {
+                var obj = {points: []};
+                this.readChildNodes(node, obj);
+                if(!container.components) {
+                    container.components = [];
+                }
+                container.components.push(obj.points[0]);
+            },
+            "coordinates": function(node, obj) {
+                var str = this.getChildValue(node).replace(
+                    this.regExes.trimSpace, ""
+                );
+                str = str.replace(this.regExes.trimComma, ",");
+                var pointList = str.split(this.regExes.splitSpace);
+                var coords;
+                var numPoints = pointList.length;
+                var points = new Array(numPoints);
+                for(var i=0; i<numPoints; ++i) {
+                    coords = pointList[i].split(",");
+                    if (this.xy) {
+                        points[i] = new OpenLayers.Geometry.Point(
+                            coords[0], coords[1], coords[2]
+                        );
+                    } else {
+                        points[i] = new OpenLayers.Geometry.Point(
+                            coords[1], coords[0], coords[2]
+                        );
+                    }
+                }
+                obj.points = points;
+            },
+            "coord": function(node, obj) {
+                var coord = {};
+                this.readChildNodes(node, coord);
+                if(!obj.points) {
+                    obj.points = [];
+                }
+                obj.points.push(new OpenLayers.Geometry.Point(
+                    coord.x, coord.y, coord.z
+                ));
+            },
+            "X": function(node, coord) {
+                coord.x = this.getChildValue(node);
+            },
+            "Y": function(node, coord) {
+                coord.y = this.getChildValue(node);
+            },
+            "Z": function(node, coord) {
+                coord.z = this.getChildValue(node);
+            },
+            "MultiPoint": function(node, container) {
+                var obj = {components: []};
+                this.readers.gml._inherit.apply(this, [node, obj, container]);
+                this.readChildNodes(node, obj);
+                container.components = [
+                    new OpenLayers.Geometry.MultiPoint(obj.components)
+                ];
+            },
+            "pointMember": function(node, obj) {
+                this.readChildNodes(node, obj);
+            },
+            "LineString": function(node, container) {
+                var obj = {};
+                this.readers.gml._inherit.apply(this, [node, obj, container]);
+                this.readChildNodes(node, obj);
+                if(!container.components) {
+                    container.components = [];
+                }
+                container.components.push(
+                    new OpenLayers.Geometry.LineString(obj.points)
+                );
+            },
+            "MultiLineString": function(node, container) {
+                var obj = {components: []};
+                this.readers.gml._inherit.apply(this, [node, obj, container]);
+                this.readChildNodes(node, obj);
+                container.components = [
+                    new OpenLayers.Geometry.MultiLineString(obj.components)
+                ];
+            },
+            "lineStringMember": function(node, obj) {
+                this.readChildNodes(node, obj);
+            },
+            "Polygon": function(node, container) {
+                var obj = {outer: null, inner: []};
+                this.readers.gml._inherit.apply(this, [node, obj, container]);
+                this.readChildNodes(node, obj);
+                obj.inner.unshift(obj.outer);
+                if(!container.components) {
+                    container.components = [];
+                }
+                container.components.push(
+                    new OpenLayers.Geometry.Polygon(obj.inner)
+                );
+            },
+            "LinearRing": function(node, obj) {
+                var container = {};
+                this.readers.gml._inherit.apply(this, [node, container]);
+                this.readChildNodes(node, container);
+                obj.components = [new OpenLayers.Geometry.LinearRing(
+                    container.points
+                )];
+            },
+            "MultiPolygon": function(node, container) {
+                var obj = {components: []};
+                this.readers.gml._inherit.apply(this, [node, obj, container]);
+                this.readChildNodes(node, obj);
+                container.components = [
+                    new OpenLayers.Geometry.MultiPolygon(obj.components)
+                ];
+            },
+            "polygonMember": function(node, obj) {
+                this.readChildNodes(node, obj);
+            },
+            "GeometryCollection": function(node, container) {
+                var obj = {components: []};
+                this.readers.gml._inherit.apply(this, [node, obj, container]);
+                this.readChildNodes(node, obj);
+                container.components = [
+                    new OpenLayers.Geometry.Collection(obj.components)
+                ];
+            },
+            "geometryMember": function(node, obj) {
+                this.readChildNodes(node, obj);
+            }
+        },
+        "feature": {
+            "*": function(node, obj) {
+                // The node can either be named like the featureType, or it
+                // can be a child of the feature:featureType.  Children can be
+                // geometry or attributes.
+                var name;
+                var local = node.localName || node.nodeName.split(":").pop();
+                // Since an attribute can have the same name as the feature type
+                // we only want to read the node as a feature if the parent
+                // node can have feature nodes as children.  In this case, the
+                // obj.features property is set.
+                if (obj.features) {
+                    if (!this.singleFeatureType &&
+                        (OpenLayers.Util.indexOf(this.featureType, local) !== -1)) {
+                        name = "_typeName";
+                    } else if(local === this.featureType) {
+                        name = "_typeName";
+                    }
+                } else {
+                    // Assume attribute elements have one child node and that the child
+                    // is a text node.  Otherwise assume it is a geometry node.
+                    if(node.childNodes.length == 0 ||
+                       (node.childNodes.length == 1 && node.firstChild.nodeType == 3)) {
+                        if(this.extractAttributes) {
+                            name = "_attribute";
+                        }
+                    } else {
+                        name = "_geometry";
+                    }
+                }
+                if(name) {
+                    this.readers.feature[name].apply(this, [node, obj]);
+                }
+            },
+            "_typeName": function(node, obj) {
+                var container = {components: [], attributes: {}};
+                this.readChildNodes(node, container);
+                // look for common gml namespaced elements
+                if(container.name) {
+                    container.attributes.name = container.name;
+                }
+                var feature = new OpenLayers.Feature.Vector(
+                    container.components[0], container.attributes
+                );
+                if (!this.singleFeatureType) {
+                    feature.type = node.nodeName.split(":").pop();
+                    feature.namespace = node.namespaceURI;
+                }
+                var fid = node.getAttribute("fid") ||
+                    this.getAttributeNS(node, this.namespaces["gml"], "id");
+                if(fid) {
+                    feature.fid = fid;
+                }
+                if(this.internalProjection && this.externalProjection &&
+                   feature.geometry) {
+                    feature.geometry.transform(
+                        this.externalProjection, this.internalProjection
+                    );
+                }
+                if(container.bounds) {
+                    feature.bounds = container.bounds;
+                }
+                obj.features.push(feature);
+            },
+            "_geometry": function(node, obj) {
+                if (!this.geometryName) {
+                    this.geometryName = node.nodeName.split(":").pop();
+                }
+                this.readChildNodes(node, obj);
+            },
+            "_attribute": function(node, obj) {
+                var local = node.localName || node.nodeName.split(":").pop();
+                var value = this.getChildValue(node);
+                obj.attributes[local] = value;
+            }
+        },
+        "wfs": {
+            "FeatureCollection": function(node, obj) {
+                this.readChildNodes(node, obj);
+            }
+        }
+    },
+    
+    /**
+     * Method: write
+     *
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>) | OpenLayers.Feature.Vector}
+     *     An array of features or a single feature.
+     *
+     * Returns:
+     * {String} Given an array of features, a doc with a gml:featureMembers
+     *     element will be returned.  Given a single feature, a doc with a
+     *     gml:featureMember element will be returned.
+     */
+    write: function(features) {
+        var name;
+        if(OpenLayers.Util.isArray(features)) {
+            name = "featureMembers";
+        } else {
+            name = "featureMember";
+        }
+        var root = this.writeNode("gml:" + name, features);
+        this.setAttributeNS(
+            root, this.namespaces["xsi"],
+            "xsi:schemaLocation", this.schemaLocation
+        );
+
+        return OpenLayers.Format.XML.prototype.write.apply(this, [root]);
+    },
+    
+    /**
+     * Property: writers
+     * As a compliment to the readers property, this structure contains public
+     *     writing functions grouped by namespace alias and named like the
+     *     node names they produce.
+     */
+    writers: {
+        "gml": {
+            "featureMember": function(feature) {
+                var node = this.createElementNSPlus("gml:featureMember");
+                this.writeNode("feature:_typeName", feature, node);
+                return node;
+            },
+            "MultiPoint": function(geometry) {
+                var node = this.createElementNSPlus("gml:MultiPoint");
+                var components = geometry.components || [geometry];
+                for(var i=0, ii=components.length; i<ii; ++i) {
+                    this.writeNode("pointMember", components[i], node);
+                }
+                return node;
+            },
+            "pointMember": function(geometry) {
+                var node = this.createElementNSPlus("gml:pointMember");
+                this.writeNode("Point", geometry, node);
+                return node;
+            },
+            "MultiLineString": function(geometry) {
+                var node = this.createElementNSPlus("gml:MultiLineString");
+                var components = geometry.components || [geometry];
+                for(var i=0, ii=components.length; i<ii; ++i) {
+                    this.writeNode("lineStringMember", components[i], node);
+                }
+                return node;
+            },
+            "lineStringMember": function(geometry) {
+                var node = this.createElementNSPlus("gml:lineStringMember");
+                this.writeNode("LineString", geometry, node);
+                return node;
+            },
+            "MultiPolygon": function(geometry) {
+                var node = this.createElementNSPlus("gml:MultiPolygon");
+                var components = geometry.components || [geometry];
+                for(var i=0, ii=components.length; i<ii; ++i) {
+                    this.writeNode(
+                        "polygonMember", components[i], node
+                    );
+                }
+                return node;
+            },
+            "polygonMember": function(geometry) {
+                var node = this.createElementNSPlus("gml:polygonMember");
+                this.writeNode("Polygon", geometry, node);
+                return node;
+            },
+            "GeometryCollection": function(geometry) {
+                var node = this.createElementNSPlus("gml:GeometryCollection");
+                for(var i=0, len=geometry.components.length; i<len; ++i) {
+                    this.writeNode("geometryMember", geometry.components[i], node);
+                }
+                return node;
+            },
+            "geometryMember": function(geometry) {
+                var node = this.createElementNSPlus("gml:geometryMember");
+                var child = this.writeNode("feature:_geometry", geometry);
+                node.appendChild(child.firstChild);
+                return node;
+            }
+        },
+        "feature": {
+            "_typeName": function(feature) {
+                var node = this.createElementNSPlus("feature:" + this.featureType, {
+                    attributes: {fid: feature.fid}
+                });
+                if(feature.geometry) {
+                    this.writeNode("feature:_geometry", feature.geometry, node);
+                }
+                for(var name in feature.attributes) {
+                    var value = feature.attributes[name];
+                    if(value != null) {
+                        this.writeNode(
+                            "feature:_attribute",
+                            {name: name, value: value}, node
+                        );
+                    }
+                }
+                return node;
+            },
+            "_geometry": function(geometry) {
+                if(this.externalProjection && this.internalProjection) {
+                    geometry = geometry.clone().transform(
+                        this.internalProjection, this.externalProjection
+                    );
+                }    
+                var node = this.createElementNSPlus(
+                    "feature:" + this.geometryName
+                );
+                var type = this.geometryTypes[geometry.CLASS_NAME];
+                var child = this.writeNode("gml:" + type, geometry, node);
+                if(this.srsName) {
+                    child.setAttribute("srsName", this.srsName);
+                }
+                return node;
+            },
+            "_attribute": function(obj) {
+                return this.createElementNSPlus("feature:" + obj.name, {
+                    value: obj.value
+                });
+            }
+        },
+        "wfs": {
+            "FeatureCollection": function(features) {
+                /**
+                 * This is only here because GML2 only describes abstract
+                 * feature collections.  Typically, you would not be using
+                 * the GML format to write wfs elements.  This just provides
+                 * some way to write out lists of features.  GML3 defines the
+                 * featureMembers element, so that is used by default instead.
+                 */
+                var node = this.createElementNSPlus("wfs:FeatureCollection");
+                for(var i=0, len=features.length; i<len; ++i) {
+                    this.writeNode("gml:featureMember", features[i], node);
+                }
+                return node;
+            }
+        }
+    },
+    
+    /**
+     * Method: setGeometryTypes
+     * Sets the <geometryTypes> mapping.
+     */
+    setGeometryTypes: function() {
+        this.geometryTypes = {
+            "OpenLayers.Geometry.Point": "Point",
+            "OpenLayers.Geometry.MultiPoint": "MultiPoint",
+            "OpenLayers.Geometry.LineString": "LineString",
+            "OpenLayers.Geometry.MultiLineString": "MultiLineString",
+            "OpenLayers.Geometry.Polygon": "Polygon",
+            "OpenLayers.Geometry.MultiPolygon": "MultiPolygon",
+            "OpenLayers.Geometry.Collection": "GeometryCollection"
+        };
+    },
+
+    CLASS_NAME: "OpenLayers.Format.GML.Base" 
+
+});
+/* ======================================================================
+    OpenLayers/Format/GML/v2.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format/GML/Base.js
+ */
+
+/**
+ * Class: OpenLayers.Format.GML.v2
+ * Parses GML version 2.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Format.GML.Base>
+ */
+OpenLayers.Format.GML.v2 = OpenLayers.Class(OpenLayers.Format.GML.Base, {
+    
+    /**
+     * Property: schemaLocation
+     * {String} Schema location for a particular minor version.
+     */
+    schemaLocation: "http://www.opengis.net/gml http://schemas.opengis.net/gml/2.1.2/feature.xsd",
+
+    /**
+     * Constructor: OpenLayers.Format.GML.v2
+     * Create a parser for GML v2.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *     this instance.
+     *
+     * Valid options properties:
+     * featureType - {String} Local (without prefix) feature typeName (required).
+     * featureNS - {String} Feature namespace (required).
+     * geometryName - {String} Geometry element name.
+     */
+    initialize: function(options) {
+        OpenLayers.Format.GML.Base.prototype.initialize.apply(this, [options]);
+    },
+
+    /**
+     * Property: readers
+     * Contains public functions, grouped by namespace prefix, that will
+     *     be applied when a namespaced node is found matching the function
+     *     name.  The function will be applied in the scope of this parser
+     *     with two arguments: the node being read and a context object passed
+     *     from the parent.
+     */
+    readers: {
+        "gml": OpenLayers.Util.applyDefaults({
+            "outerBoundaryIs": function(node, container) {
+                var obj = {};
+                this.readChildNodes(node, obj);
+                container.outer = obj.components[0];
+            },
+            "innerBoundaryIs": function(node, container) {
+                var obj = {};
+                this.readChildNodes(node, obj);
+                container.inner.push(obj.components[0]);
+            },
+            "Box": function(node, container) {
+                var obj = {};
+                this.readChildNodes(node, obj);
+                if(!container.components) {
+                    container.components = [];
+                }
+                var min = obj.points[0];
+                var max = obj.points[1];
+                container.components.push(
+                    new OpenLayers.Bounds(min.x, min.y, max.x, max.y)
+                );
+            }
+        }, OpenLayers.Format.GML.Base.prototype.readers["gml"]),
+        "feature": OpenLayers.Format.GML.Base.prototype.readers["feature"],
+        "wfs": OpenLayers.Format.GML.Base.prototype.readers["wfs"]
+    },
+
+    /**
+     * Method: write
+     *
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>) | OpenLayers.Feature.Vector}
+     *     An array of features or a single feature.
+     *
+     * Returns:
+     * {String} Given an array of features, a doc with a gml:featureMembers
+     *     element will be returned.  Given a single feature, a doc with a
+     *     gml:featureMember element will be returned.
+     */
+    write: function(features) {
+        var name;
+        if(OpenLayers.Util.isArray(features)) {
+            // GML2 only has abstract feature collections
+            // wfs provides a feature collection from a well-known schema
+            name = "wfs:FeatureCollection";
+        } else {
+            name = "gml:featureMember";
+        }
+        var root = this.writeNode(name, features);
+        this.setAttributeNS(
+            root, this.namespaces["xsi"],
+            "xsi:schemaLocation", this.schemaLocation
+        );
+
+        return OpenLayers.Format.XML.prototype.write.apply(this, [root]);
+    },
+
+    /**
+     * Property: writers
+     * As a compliment to the readers property, this structure contains public
+     *     writing functions grouped by namespace alias and named like the
+     *     node names they produce.
+     */
+    writers: {
+        "gml": OpenLayers.Util.applyDefaults({
+            "Point": function(geometry) {
+                var node = this.createElementNSPlus("gml:Point");
+                this.writeNode("coordinates", [geometry], node);
+                return node;
+            },
+            "coordinates": function(points) {
+                var numPoints = points.length;
+                var parts = new Array(numPoints);
+                var point;
+                for(var i=0; i<numPoints; ++i) {
+                    point = points[i];
+                    if(this.xy) {
+                        parts[i] = point.x + "," + point.y;
+                    } else {
+                        parts[i] = point.y + "," + point.x;
+                    }
+                    if(point.z != undefined) { // allow null or undefined
+                        parts[i] += "," + point.z;
+                    }
+                }
+                return this.createElementNSPlus("gml:coordinates", {
+                    attributes: {
+                        decimal: ".", cs: ",", ts: " "
+                    },
+                    value: (numPoints == 1) ? parts[0] : parts.join(" ")
+                });
+            },
+            "LineString": function(geometry) {
+                var node = this.createElementNSPlus("gml:LineString");
+                this.writeNode("coordinates", geometry.components, node);
+                return node;
+            },
+            "Polygon": function(geometry) {
+                var node = this.createElementNSPlus("gml:Polygon");
+                this.writeNode("outerBoundaryIs", geometry.components[0], node);
+                for(var i=1; i<geometry.components.length; ++i) {
+                    this.writeNode(
+                        "innerBoundaryIs", geometry.components[i], node
+                    );
+                }
+                return node;
+            },
+            "outerBoundaryIs": function(ring) {
+                var node = this.createElementNSPlus("gml:outerBoundaryIs");
+                this.writeNode("LinearRing", ring, node);
+                return node;
+            },
+            "innerBoundaryIs": function(ring) {
+                var node = this.createElementNSPlus("gml:innerBoundaryIs");
+                this.writeNode("LinearRing", ring, node);
+                return node;
+            },
+            "LinearRing": function(ring) {
+                var node = this.createElementNSPlus("gml:LinearRing");
+                this.writeNode("coordinates", ring.components, node);
+                return node;
+            },
+            "Box": function(bounds) {
+                var node = this.createElementNSPlus("gml:Box");
+                this.writeNode("coordinates", [
+                    {x: bounds.left, y: bounds.bottom},
+                    {x: bounds.right, y: bounds.top}
+                ], node);
+                // srsName attribute is optional for gml:Box
+                if(this.srsName) {
+                    node.setAttribute("srsName", this.srsName);
+                }
+                return node;
+            }
+        }, OpenLayers.Format.GML.Base.prototype.writers["gml"]),
+        "feature": OpenLayers.Format.GML.Base.prototype.writers["feature"],
+        "wfs": OpenLayers.Format.GML.Base.prototype.writers["wfs"]
+    },
+    
+    CLASS_NAME: "OpenLayers.Format.GML.v2" 
+
+});
+/* ======================================================================
+    OpenLayers/Filter/Function.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Filter.js
+ */
+
+/**
+ * Class: OpenLayers.Filter.Function
+ * This class represents a filter function.
+ * We are using this class for creation of complex 
+ * filters that can contain filter functions as values.
+ * Nesting function as other functions parameter is supported.
+ * 
+ * Inherits from:
+ * - <OpenLayers.Filter>
+ */
+OpenLayers.Filter.Function = OpenLayers.Class(OpenLayers.Filter, {
+
+    /**
+     * APIProperty: name
+     * {String} Name of the function.
+     */
+    name: null,
+    
+    /**
+     * APIProperty: params
+     * {Array(<OpenLayers.Filter.Function> || String || Number)} Function parameters
+     * For now support only other Functions, String or Number
+     */
+    params: null,  
+    
+    /** 
+     * Constructor: OpenLayers.Filter.Function
+     * Creates a filter function.
+     *
+     * Parameters:
+     * options - {Object} An optional object with properties to set on the
+     *     function.
+     * 
+     * Returns:
+     * {<OpenLayers.Filter.Function>}
+     */
+
+    CLASS_NAME: "OpenLayers.Filter.Function"
+});
+
+/* ======================================================================
+    OpenLayers/BaseTypes/Date.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/SingleFile.js
+ */
+
+/**
+ * Namespace: OpenLayers.Date
+ * Contains implementations of Date.parse and date.toISOString that match the
+ *     ECMAScript 5 specification for parsing RFC 3339 dates.
+ *     http://tools.ietf.org/html/rfc3339
+ */
+OpenLayers.Date = {
+
+    /** 
+     * APIProperty: dateRegEx
+     * The regex to be used for validating dates. You can provide your own
+     * regex for instance for adding support for years before BC. Default
+     * value is: /^(?:(\d{4})(?:-(\d{2})(?:-(\d{2}))?)?)?(?:(?:T(\d{1,2}):(\d{2}):(\d{2}(?:\.\d+)?)(Z|(?:[+-]\d{1,2}(?::(\d{2}))?)))|Z)?$/
+     */
+    dateRegEx: /^(?:(\d{4})(?:-(\d{2})(?:-(\d{2}))?)?)?(?:(?:T(\d{1,2}):(\d{2}):(\d{2}(?:\.\d+)?)(Z|(?:[+-]\d{1,2}(?::(\d{2}))?)))|Z)?$/,
+
+    /**
+     * APIMethod: toISOString
+     * Generates a string representing a date.  The format of the string follows
+     *     the profile of ISO 8601 for date and time on the Internet (see
+     *     http://tools.ietf.org/html/rfc3339).  If the toISOString method is
+     *     available on the Date prototype, that is used.  The toISOString
+     *     method for Date instances is defined in ECMA-262.
+     *
+     * Parameters:
+     * date - {Date} A date object.
+     *
+     * Returns:
+     * {String} A string representing the date (e.g.
+     *     "2010-08-07T16:58:23.123Z").  If the date does not have a valid time
+     *     (i.e. isNaN(date.getTime())) this method returns the string "Invalid
+     *     Date".  The ECMA standard says the toISOString method should throw
+     *     RangeError in this case, but Firefox returns a string instead.  For
+     *     best results, use isNaN(date.getTime()) to determine date validity
+     *     before generating date strings.
+     */
+    toISOString: (function() {
+        if ("toISOString" in Date.prototype) {
+            return function(date) {
+                return date.toISOString();
+            };
+        } else {
+            return function(date) {
+                var str;
+                if (isNaN(date.getTime())) {
+                    // ECMA-262 says throw RangeError, Firefox returns
+                    // "Invalid Date"
+                    str = "Invalid Date";
+                } else {
+                    str =
+                        date.getUTCFullYear() + "-" +
+                        OpenLayers.Number.zeroPad(date.getUTCMonth() + 1, 2) + "-" +
+                        OpenLayers.Number.zeroPad(date.getUTCDate(), 2) + "T" +
+                        OpenLayers.Number.zeroPad(date.getUTCHours(), 2) + ":" +
+                        OpenLayers.Number.zeroPad(date.getUTCMinutes(), 2) + ":" +
+                        OpenLayers.Number.zeroPad(date.getUTCSeconds(), 2) + "." +
+                        OpenLayers.Number.zeroPad(date.getUTCMilliseconds(), 3) + "Z";
+                }
+                return str;
+            };
+        }
+
+    })(),
+
+    /**
+     * APIMethod: parse
+     * Generate a date object from a string.  The format for the string follows
+     *     the profile of ISO 8601 for date and time on the Internet (see
+     *     http://tools.ietf.org/html/rfc3339).  We don't call the native
+     *     Date.parse because of inconsistency between implmentations.  In
+     *     Chrome, calling Date.parse with a string that doesn't contain any
+     *     indication of the timezone (e.g. "2011"), the date is interpreted
+     *     in local time.  On Firefox, the assumption is UTC.
+     *
+     * Parameters:
+     * str - {String} A string representing the date (e.g.
+     *     "2010", "2010-08", "2010-08-07", "2010-08-07T16:58:23.123Z",
+     *     "2010-08-07T11:58:23.123-06").
+     *
+     * Returns:
+     * {Date} A date object.  If the string could not be parsed, an invalid
+     *     date is returned (i.e. isNaN(date.getTime())).
+     */
+    parse: function(str) {
+        var date;
+        var match = str.match(this.dateRegEx);
+        if (match && (match[1] || match[7])) { // must have at least year or time
+            var year = parseInt(match[1], 10) || 0;
+            var month = (parseInt(match[2], 10) - 1) || 0;
+            var day = parseInt(match[3], 10) || 1;
+            date = new Date(Date.UTC(year, month, day));
+            // optional time
+            var type = match[7];
+            if (type) {
+                var hours = parseInt(match[4], 10);
+                var minutes = parseInt(match[5], 10);
+                var secFrac = parseFloat(match[6]);
+                var seconds = secFrac | 0;
+                var milliseconds = Math.round(1000 * (secFrac - seconds));
+                date.setUTCHours(hours, minutes, seconds, milliseconds);
+                // check offset
+                if (type !== "Z") {
+                    var hoursOffset = parseInt(type, 10);
+                    var minutesOffset = parseInt(match[8], 10) || 0;
+                    var offset = -1000 * (60 * (hoursOffset * 60) + minutesOffset * 60);
+                    date = new Date(date.getTime() + offset);
+                }
+            }
+        } else {
+            date = new Date("invalid");
+        }
+        return date;
+    }
+};
+/* ======================================================================
+    OpenLayers/Format/Filter/v1.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+/**
+ * @requires OpenLayers/Format/Filter.js
+ * @requires OpenLayers/Format/XML.js
+ * @requires OpenLayers/Filter/Function.js
+ * @requires OpenLayers/BaseTypes/Date.js
+ */
+
+/**
+ * Class: OpenLayers.Format.Filter.v1
+ * Superclass for Filter version 1 parsers.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Format.XML>
+ */
+OpenLayers.Format.Filter.v1 = OpenLayers.Class(OpenLayers.Format.XML, {
+    
+    /**
+     * Property: namespaces
+     * {Object} Mapping of namespace aliases to namespace URIs.
+     */
+    namespaces: {
+        ogc: "http://www.opengis.net/ogc",
+        gml: "http://www.opengis.net/gml",
+        xlink: "http://www.w3.org/1999/xlink",
+        xsi: "http://www.w3.org/2001/XMLSchema-instance"
+    },
+
+    /**
+     * Property: defaultPrefix
+     */
+    defaultPrefix: "ogc",
+
+    /**
+     * Property: schemaLocation
+     * {String} Schema location for a particular minor version.
+     */
+    schemaLocation: null,
+    
+    /**
+     * Constructor: OpenLayers.Format.Filter.v1
+     * Instances of this class are not created directly.  Use the
+     *     <OpenLayers.Format.Filter> constructor instead.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *     this instance.
+     */
+    initialize: function(options) {
+        OpenLayers.Format.XML.prototype.initialize.apply(this, [options]);
+    },
+    
+    /**
+     * Method: read
+     *
+     * Parameters:
+     * data - {DOMElement} A Filter document element.
+     *
+     * Returns:
+     * {<OpenLayers.Filter>} A filter object.
+     */
+    read: function(data) {
+        var obj = {};
+        this.readers.ogc["Filter"].apply(this, [data, obj]);
+        return obj.filter;
+    },
+    
+    /**
+     * Property: readers
+     * Contains public functions, grouped by namespace prefix, that will
+     *     be applied when a namespaced node is found matching the function
+     *     name.  The function will be applied in the scope of this parser
+     *     with two arguments: the node being read and a context object passed
+     *     from the parent.
+     */
+    readers: {
+        "ogc": {
+            "_expression": function(node) {
+                // only the simplest of ogc:expression handled
+                // "some text and an <PropertyName>attribute</PropertyName>"}
+                var obj, value = "";
+                for(var child=node.firstChild; child; child=child.nextSibling) {
+                    switch(child.nodeType) {
+                        case 1:
+                            obj = this.readNode(child);
+                            if (obj.property) {
+                                value += "${" + obj.property + "}";
+                            } else if (obj.value !== undefined) {
+                                value += obj.value;
+                            }
+                            break;
+                        case 3: // text node
+                        case 4: // cdata section
+                            value += child.nodeValue;
+                    }
+                }
+                return value;
+            },
+            "Filter": function(node, parent) {
+                // Filters correspond to subclasses of OpenLayers.Filter.
+                // Since they contain information we don't persist, we
+                // create a temporary object and then pass on the filter
+                // (ogc:Filter) to the parent obj.
+                var obj = {
+                    fids: [],
+                    filters: []
+                };
+                this.readChildNodes(node, obj);
+                if(obj.fids.length > 0) {
+                    parent.filter = new OpenLayers.Filter.FeatureId({
+                        fids: obj.fids
+                    });
+                } else if(obj.filters.length > 0) {
+                    parent.filter = obj.filters[0];
+                }
+            },
+            "FeatureId": function(node, obj) {
+                var fid = node.getAttribute("fid");
+                if(fid) {
+                    obj.fids.push(fid);
+                }
+            },
+            "And": function(node, obj) {
+                var filter = new OpenLayers.Filter.Logical({
+                    type: OpenLayers.Filter.Logical.AND
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            },
+            "Or": function(node, obj) {
+                var filter = new OpenLayers.Filter.Logical({
+                    type: OpenLayers.Filter.Logical.OR
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            },
+            "Not": function(node, obj) {
+                var filter = new OpenLayers.Filter.Logical({
+                    type: OpenLayers.Filter.Logical.NOT
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            },
+            "PropertyIsLessThan": function(node, obj) {
+                var filter = new OpenLayers.Filter.Comparison({
+                    type: OpenLayers.Filter.Comparison.LESS_THAN
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            },
+            "PropertyIsGreaterThan": function(node, obj) {
+                var filter = new OpenLayers.Filter.Comparison({
+                    type: OpenLayers.Filter.Comparison.GREATER_THAN
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            },
+            "PropertyIsLessThanOrEqualTo": function(node, obj) {
+                var filter = new OpenLayers.Filter.Comparison({
+                    type: OpenLayers.Filter.Comparison.LESS_THAN_OR_EQUAL_TO
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            },
+            "PropertyIsGreaterThanOrEqualTo": function(node, obj) {
+                var filter = new OpenLayers.Filter.Comparison({
+                    type: OpenLayers.Filter.Comparison.GREATER_THAN_OR_EQUAL_TO
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            },
+            "PropertyIsBetween": function(node, obj) {
+                var filter = new OpenLayers.Filter.Comparison({
+                    type: OpenLayers.Filter.Comparison.BETWEEN
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            },
+            "Literal": function(node, obj) {
+                obj.value = OpenLayers.String.numericIf(
+                    this.getChildValue(node), true);
+            },
+            "PropertyName": function(node, filter) {
+                filter.property = this.getChildValue(node);
+            },
+            "LowerBoundary": function(node, filter) {
+                filter.lowerBoundary = OpenLayers.String.numericIf(
+                    this.readers.ogc._expression.call(this, node), true);
+            },
+            "UpperBoundary": function(node, filter) {
+                filter.upperBoundary = OpenLayers.String.numericIf(
+                    this.readers.ogc._expression.call(this, node), true);
+            },
+            "Intersects": function(node, obj) {
+                this.readSpatial(node, obj, OpenLayers.Filter.Spatial.INTERSECTS);
+            },
+            "Within": function(node, obj) {
+                this.readSpatial(node, obj, OpenLayers.Filter.Spatial.WITHIN);
+            },
+            "Contains": function(node, obj) {
+                this.readSpatial(node, obj, OpenLayers.Filter.Spatial.CONTAINS);
+            },
+            "DWithin": function(node, obj) {
+                this.readSpatial(node, obj, OpenLayers.Filter.Spatial.DWITHIN);
+            },
+            "Distance": function(node, obj) {
+                obj.distance = parseInt(this.getChildValue(node));
+                obj.distanceUnits = node.getAttribute("units");
+            },
+            "Function": function(node, obj) {
+                //TODO write decoder for it
+                return;
+            },
+            "PropertyIsNull": function(node, obj) {
+                var filter = new OpenLayers.Filter.Comparison({
+                    type: OpenLayers.Filter.Comparison.IS_NULL
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            }
+        }
+    },
+    
+    /**
+     * Method: readSpatial
+     *
+     * Read a {<OpenLayers.Filter.Spatial>} filter.
+     * 
+     * Parameters:
+     * node - {DOMElement} A DOM element that contains an ogc:expression.
+     * obj - {Object} The target object.
+     * type - {String} One of the OpenLayers.Filter.Spatial.* constants.
+     *
+     * Returns:
+     * {<OpenLayers.Filter.Spatial>} The created filter.
+     */
+    readSpatial: function(node, obj, type) {
+        var filter = new OpenLayers.Filter.Spatial({
+            type: type
+        });
+        this.readChildNodes(node, filter);
+        filter.value = filter.components[0];
+        delete filter.components;
+        obj.filters.push(filter);
+    },
+
+    /**
+     * APIMethod: encodeLiteral
+     * Generates the string representation of a value for use in <Literal> 
+     *     elements.  The default encoder writes Date values as ISO 8601 
+     *     strings.
+     *
+     * Parameters:
+     * value - {Object} Literal value to encode
+     *
+     * Returns:
+     * {String} String representation of the provided value.
+     */
+    encodeLiteral: function(value) {
+        if (value instanceof Date) {
+            value = OpenLayers.Date.toISOString(value);
+        }
+        return value;
+    },
+
+    /**
+     * Method: writeOgcExpression
+     * Limited support for writing OGC expressions. Currently it supports
+     * (<OpenLayers.Filter.Function> || String || Number)
+     *
+     * Parameters:
+     * value - (<OpenLayers.Filter.Function> || String || Number)
+     * node - {DOMElement} A parent DOM element 
+     *
+     * Returns:
+     * {DOMElement} Updated node element.
+     */
+    writeOgcExpression: function(value, node) {
+        if (value instanceof OpenLayers.Filter.Function){
+            this.writeNode("Function", value, node);
+        } else {
+            this.writeNode("Literal", value, node);
+        }
+        return node;
+    },    
+    
+    /**
+     * Method: write
+     *
+     * Parameters:
+     * filter - {<OpenLayers.Filter>} A filter object.
+     *
+     * Returns:
+     * {DOMElement} An ogc:Filter element.
+     */
+    write: function(filter) {
+        return this.writers.ogc["Filter"].apply(this, [filter]);
+    },
+    
+    /**
+     * Property: writers
+     * As a compliment to the readers property, this structure contains public
+     *     writing functions grouped by namespace alias and named like the
+     *     node names they produce.
+     */
+    writers: {
+        "ogc": {
+            "Filter": function(filter) {
+                var node = this.createElementNSPlus("ogc:Filter");
+                this.writeNode(this.getFilterType(filter), filter, node);
+                return node;
+            },
+            "_featureIds": function(filter) {
+                var node = this.createDocumentFragment();
+                for (var i=0, ii=filter.fids.length; i<ii; ++i) {
+                    this.writeNode("ogc:FeatureId", filter.fids[i], node);
+                }
+                return node;
+            },
+            "FeatureId": function(fid) {
+                return this.createElementNSPlus("ogc:FeatureId", {
+                    attributes: {fid: fid}
+                });
+            },
+            "And": function(filter) {
+                var node = this.createElementNSPlus("ogc:And");
+                var childFilter;
+                for (var i=0, ii=filter.filters.length; i<ii; ++i) {
+                    childFilter = filter.filters[i];
+                    this.writeNode(
+                        this.getFilterType(childFilter), childFilter, node
+                    );
+                }
+                return node;
+            },
+            "Or": function(filter) {
+                var node = this.createElementNSPlus("ogc:Or");
+                var childFilter;
+                for (var i=0, ii=filter.filters.length; i<ii; ++i) {
+                    childFilter = filter.filters[i];
+                    this.writeNode(
+                        this.getFilterType(childFilter), childFilter, node
+                    );
+                }
+                return node;
+            },
+            "Not": function(filter) {
+                var node = this.createElementNSPlus("ogc:Not");
+                var childFilter = filter.filters[0];
+                this.writeNode(
+                    this.getFilterType(childFilter), childFilter, node
+                );
+                return node;
+            },
+            "PropertyIsLessThan": function(filter) {
+                var node = this.createElementNSPlus("ogc:PropertyIsLessThan");
+                // no ogc:expression handling for PropertyName for now
+                this.writeNode("PropertyName", filter, node);
+                // handle Literals or Functions for now
+                this.writeOgcExpression(filter.value, node);
+                return node;
+            },
+            "PropertyIsGreaterThan": function(filter) {
+                var node = this.createElementNSPlus("ogc:PropertyIsGreaterThan");
+                // no ogc:expression handling for PropertyName for now
+                this.writeNode("PropertyName", filter, node);
+                // handle Literals or Functions for now
+                this.writeOgcExpression(filter.value, node);
+                return node;
+            },
+            "PropertyIsLessThanOrEqualTo": function(filter) {
+                var node = this.createElementNSPlus("ogc:PropertyIsLessThanOrEqualTo");
+                // no ogc:expression handling for PropertyName for now
+                this.writeNode("PropertyName", filter, node);
+                // handle Literals or Functions for now
+                this.writeOgcExpression(filter.value, node);
+                return node;
+            },
+            "PropertyIsGreaterThanOrEqualTo": function(filter) {
+                var node = this.createElementNSPlus("ogc:PropertyIsGreaterThanOrEqualTo");
+                // no ogc:expression handling for PropertyName for now
+                this.writeNode("PropertyName", filter, node);
+                // handle Literals or Functions for now
+                this.writeOgcExpression(filter.value, node);
+                return node;
+            },
+            "PropertyIsBetween": function(filter) {
+                var node = this.createElementNSPlus("ogc:PropertyIsBetween");
+                // no ogc:expression handling for PropertyName for now
+                this.writeNode("PropertyName", filter, node);
+                this.writeNode("LowerBoundary", filter, node);
+                this.writeNode("UpperBoundary", filter, node);
+                return node;
+            },
+            "PropertyName": function(filter) {
+                // no ogc:expression handling for now
+                return this.createElementNSPlus("ogc:PropertyName", {
+                    value: filter.property
+                });
+            },
+            "Literal": function(value) {
+                var encode = this.encodeLiteral ||
+                    OpenLayers.Format.Filter.v1.prototype.encodeLiteral;
+                return this.createElementNSPlus("ogc:Literal", {
+                    value: encode(value)
+                });
+            },
+            "LowerBoundary": function(filter) {
+                // handle Literals or Functions for now
+                var node = this.createElementNSPlus("ogc:LowerBoundary");
+                this.writeOgcExpression(filter.lowerBoundary, node);
+                return node;
+            },
+            "UpperBoundary": function(filter) {
+                // handle Literals or Functions for now
+                var node = this.createElementNSPlus("ogc:UpperBoundary");
+                this.writeNode("Literal", filter.upperBoundary, node);
+                return node;
+            },
+            "INTERSECTS": function(filter) {
+                return this.writeSpatial(filter, "Intersects");
+            },
+            "WITHIN": function(filter) {
+                return this.writeSpatial(filter, "Within");
+            },
+            "CONTAINS": function(filter) {
+                return this.writeSpatial(filter, "Contains");
+            },
+            "DWITHIN": function(filter) {
+                var node = this.writeSpatial(filter, "DWithin");
+                this.writeNode("Distance", filter, node);
+                return node;
+            },
+            "Distance": function(filter) {
+                return this.createElementNSPlus("ogc:Distance", {
+                    attributes: {
+                        units: filter.distanceUnits
+                    },
+                    value: filter.distance
+                });
+            },
+            "Function": function(filter) {
+                var node = this.createElementNSPlus("ogc:Function", {
+                    attributes: {
+                        name: filter.name
+                    }
+                });
+                var params = filter.params;
+                for(var i=0, len=params.length; i<len; i++){
+                    this.writeOgcExpression(params[i], node);
+                }
+                return node;
+            },
+            "PropertyIsNull": function(filter) {
+                var node = this.createElementNSPlus("ogc:PropertyIsNull");
+                this.writeNode("PropertyName", filter, node);
+                return node;
+            }
+        }
+    },
+
+    /**
+     * Method: getFilterType
+     */
+    getFilterType: function(filter) {
+        var filterType = this.filterMap[filter.type];
+        if(!filterType) {
+            throw "Filter writing not supported for rule type: " + filter.type;
+        }
+        return filterType;
+    },
+    
+    /**
+     * Property: filterMap
+     * {Object} Contains a member for each filter type.  Values are node names
+     *     for corresponding OGC Filter child elements.
+     */
+    filterMap: {
+        "&&": "And",
+        "||": "Or",
+        "!": "Not",
+        "==": "PropertyIsEqualTo",
+        "!=": "PropertyIsNotEqualTo",
+        "<": "PropertyIsLessThan",
+        ">": "PropertyIsGreaterThan",
+        "<=": "PropertyIsLessThanOrEqualTo",
+        ">=": "PropertyIsGreaterThanOrEqualTo",
+        "..": "PropertyIsBetween",
+        "~": "PropertyIsLike",
+        "NULL": "PropertyIsNull",
+        "BBOX": "BBOX",
+        "DWITHIN": "DWITHIN",
+        "WITHIN": "WITHIN",
+        "CONTAINS": "CONTAINS",
+        "INTERSECTS": "INTERSECTS",
+        "FID": "_featureIds"
+    },
+
+    CLASS_NAME: "OpenLayers.Format.Filter.v1" 
+
+});
+/* ======================================================================
+    OpenLayers/Format/Filter/v1_0_0.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format/GML/v2.js
+ * @requires OpenLayers/Format/Filter/v1.js
+ */
+
+/**
+ * Class: OpenLayers.Format.Filter.v1_0_0
+ * Write ogc:Filter version 1.0.0.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Format.GML.v2>
+ *  - <OpenLayers.Format.Filter.v1>
+ */
+OpenLayers.Format.Filter.v1_0_0 = OpenLayers.Class(
+    OpenLayers.Format.GML.v2, OpenLayers.Format.Filter.v1, {
+    
+    /**
+     * Constant: VERSION
+     * {String} 1.0.0
+     */
+    VERSION: "1.0.0",
+    
+    /**
+     * Property: schemaLocation
+     * {String} http://www.opengis.net/ogc/filter/1.0.0/filter.xsd
+     */
+    schemaLocation: "http://www.opengis.net/ogc/filter/1.0.0/filter.xsd",
+
+    /**
+     * Constructor: OpenLayers.Format.Filter.v1_0_0
+     * Instances of this class are not created directly.  Use the
+     *     <OpenLayers.Format.Filter> constructor instead.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *     this instance.
+     */
+    initialize: function(options) {
+        OpenLayers.Format.GML.v2.prototype.initialize.apply(
+            this, [options]
+        );
+    },
+
+    /**
+     * Property: readers
+     * Contains public functions, grouped by namespace prefix, that will
+     *     be applied when a namespaced node is found matching the function
+     *     name.  The function will be applied in the scope of this parser
+     *     with two arguments: the node being read and a context object passed
+     *     from the parent.
+     */
+    readers: {
+        "ogc": OpenLayers.Util.applyDefaults({
+            "PropertyIsEqualTo": function(node, obj) {
+                var filter = new OpenLayers.Filter.Comparison({
+                    type: OpenLayers.Filter.Comparison.EQUAL_TO
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            },
+            "PropertyIsNotEqualTo": function(node, obj) {
+                var filter = new OpenLayers.Filter.Comparison({
+                    type: OpenLayers.Filter.Comparison.NOT_EQUAL_TO
+                });
+                this.readChildNodes(node, filter);
+                obj.filters.push(filter);
+            },
+            "PropertyIsLike": function(node, obj) {
+                var filter = new OpenLayers.Filter.Comparison({
+                    type: OpenLayers.Filter.Comparison.LIKE
+                });
+                this.readChildNodes(node, filter);
+                var wildCard = node.getAttribute("wildCard");
+                var singleChar = node.getAttribute("singleChar");
+                var esc = node.getAttribute("escape");
+                filter.value2regex(wildCard, singleChar, esc);
+                obj.filters.push(filter);
+            }
+        }, OpenLayers.Format.Filter.v1.prototype.readers["ogc"]),
+        "gml": OpenLayers.Format.GML.v2.prototype.readers["gml"],
+        "feature": OpenLayers.Format.GML.v2.prototype.readers["feature"]        
+    },
+
+    /**
+     * Property: writers
+     * As a compliment to the readers property, this structure contains public
+     *     writing functions grouped by namespace alias and named like the
+     *     node names they produce.
+     */
+    writers: {
+        "ogc": OpenLayers.Util.applyDefaults({
+            "PropertyIsEqualTo": function(filter) {
+                var node = this.createElementNSPlus("ogc:PropertyIsEqualTo");
+                // no ogc:expression handling for PropertyName for now
+                this.writeNode("PropertyName", filter, node);
+                // handle Literals or Functions for now
+                this.writeOgcExpression(filter.value, node);
+                return node;
+            },
+            "PropertyIsNotEqualTo": function(filter) {
+                var node = this.createElementNSPlus("ogc:PropertyIsNotEqualTo");
+                // no ogc:expression handling for PropertyName for now
+                this.writeNode("PropertyName", filter, node);
+                // handle Literals or Functions for now
+                this.writeOgcExpression(filter.value, node);
+                return node;
+            },
+            "PropertyIsLike": function(filter) {
+                var node = this.createElementNSPlus("ogc:PropertyIsLike", {
+                    attributes: {
+                        wildCard: "*", singleChar: ".", escape: "!"
+                    }
+                });
+                // no ogc:expression handling for now
+                this.writeNode("PropertyName", filter, node);
+                // convert regex string to ogc string
+                this.writeNode("Literal", filter.regex2value(), node);
+                return node;
+            },
+            "BBOX": function(filter) {
+                var node = this.createElementNSPlus("ogc:BBOX");
+                // PropertyName is mandatory in 1.0.0, but e.g. GeoServer also
+                // accepts filters without it. When this is used with
+                // OpenLayers.Protocol.WFS, OpenLayers.Format.WFST will set a
+                // missing filter.property to the geometryName that is
+                // configured with the protocol, which defaults to "the_geom".
+                // So the only way to omit this mandatory property is to not
+                // set the property on the filter and to set the geometryName
+                // on the WFS protocol to null. The latter also happens when
+                // the protocol is configured without a geometryName and a
+                // featureNS.
+                filter.property && this.writeNode("PropertyName", filter, node);
+                var box = this.writeNode("gml:Box", filter.value, node);
+                if(filter.projection) {
+                    box.setAttribute("srsName", filter.projection);
+                }
+                return node;
+            }
+        }, OpenLayers.Format.Filter.v1.prototype.writers["ogc"]),
+        "gml": OpenLayers.Format.GML.v2.prototype.writers["gml"],
+        "feature": OpenLayers.Format.GML.v2.prototype.writers["feature"]
+    },
+
+    /**
+     * Method: writeSpatial
+     *
+     * Read a {<OpenLayers.Filter.Spatial>} filter and converts it into XML.
+     *
+     * Parameters:
+     * filter - {<OpenLayers.Filter.Spatial>} The filter.
+     * name - {String} Name of the generated XML element.
+     *
+     * Returns:
+     * {DOMElement} The created XML element.
+     */
+    writeSpatial: function(filter, name) {
+        var node = this.createElementNSPlus("ogc:"+name);
+        this.writeNode("PropertyName", filter, node);
+        if(filter.value instanceof OpenLayers.Filter.Function) {
+            this.writeNode("Function", filter.value, node);
+        } else {
+        var child;
+        if(filter.value instanceof OpenLayers.Geometry) {
+            child = this.writeNode("feature:_geometry", filter.value).firstChild;
+        } else {
+            child = this.writeNode("gml:Box", filter.value);
+        }
+        if(filter.projection) {
+            child.setAttribute("srsName", filter.projection);
+        }
+        node.appendChild(child);
+        }
+        return node;
+    },
+
+
+    CLASS_NAME: "OpenLayers.Format.Filter.v1_0_0" 
+
+});
+/* ======================================================================
+    OpenLayers/Format/WFST/v1_0_0.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format/WFST/v1.js
+ * @requires OpenLayers/Format/Filter/v1_0_0.js
+ */
+
+/**
+ * Class: OpenLayers.Format.WFST.v1_0_0
+ * A format for creating WFS v1.0.0 transactions.  Create a new instance with the
+ *     <OpenLayers.Format.WFST.v1_0_0> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Format.Filter.v1_0_0>
+ *  - <OpenLayers.Format.WFST.v1>
+ */
+OpenLayers.Format.WFST.v1_0_0 = OpenLayers.Class(
+    OpenLayers.Format.Filter.v1_0_0, OpenLayers.Format.WFST.v1, {
+    
+    /**
+     * Property: version
+     * {String} WFS version number.
+     */
+    version: "1.0.0",
+
+    /**
+     * APIProperty: srsNameInQuery
+     * {Boolean} If true the reference system is passed in Query requests
+     *     via the "srsName" attribute to the "wfs:Query" element, this
+     *     property defaults to false as it isn't WFS 1.0.0 compliant.
+     */
+    srsNameInQuery: false,
+    
+    /**
+     * Property: schemaLocations
+     * {Object} Properties are namespace aliases, values are schema locations.
+     */
+    schemaLocations: {
+        "wfs": "http://schemas.opengis.net/wfs/1.0.0/WFS-transaction.xsd"
+    },
+
+    /**
+     * Constructor: OpenLayers.Format.WFST.v1_0_0
+     * A class for parsing and generating WFS v1.0.0 transactions.
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on the
+     *     instance.
+     *
+     * Valid options properties:
+     * featureType - {String} Local (without prefix) feature typeName (required).
+     * featureNS - {String} Feature namespace (optional).
+     * featurePrefix - {String} Feature namespace alias (optional - only used
+     *     if featureNS is provided).  Default is 'feature'.
+     * geometryName - {String} Name of geometry attribute.  Default is 'the_geom'.
+     */
+    initialize: function(options) {
+        OpenLayers.Format.Filter.v1_0_0.prototype.initialize.apply(this, [options]);
+        OpenLayers.Format.WFST.v1.prototype.initialize.apply(this, [options]);
+    },
+    
+    /**
+     * Method: readNode
+     * Shorthand for applying one of the named readers given the node
+     *     namespace and local name.  Readers take two args (node, obj) and
+     *     generally extend or modify the second.
+     *
+     * Parameters:
+     * node - {DOMElement} The node to be read (required).
+     * obj - {Object} The object to be modified (optional).
+     * first - {Boolean} Should be set to true for the first node read. This
+     *     is usually the readNode call in the read method. Without this being
+     *     set, auto-configured properties will stick on subsequent reads.
+     *
+     * Returns:
+     * {Object} The input object, modified (or a new one if none was provided).
+     */
+    readNode: function(node, obj, first) {
+        // Not the superclass, only the mixin classes inherit from
+        // Format.GML.v2. We need this because we don't want to get readNode
+        // from the superclass's superclass, which is OpenLayers.Format.XML.
+        return OpenLayers.Format.GML.v2.prototype.readNode.apply(this, arguments);
+    },
+    
+    /**
+     * Property: readers
+     * Contains public functions, grouped by namespace prefix, that will
+     *     be applied when a namespaced node is found matching the function
+     *     name.  The function will be applied in the scope of this parser
+     *     with two arguments: the node being read and a context object passed
+     *     from the parent.
+     */
+    readers: {
+        "wfs": OpenLayers.Util.applyDefaults({
+            "WFS_TransactionResponse": function(node, obj) {
+                obj.insertIds = [];
+                obj.success = false;
+                this.readChildNodes(node, obj);
+            },
+            "InsertResult": function(node, container) {
+                var obj = {fids: []};
+                this.readChildNodes(node, obj);
+                container.insertIds = container.insertIds.concat(obj.fids);
+            },
+            "TransactionResult": function(node, obj) {
+                this.readChildNodes(node, obj);
+            },
+            "Status": function(node, obj) {
+                this.readChildNodes(node, obj);
+            },
+            "SUCCESS": function(node, obj) {
+                obj.success = true;
+            }
+        }, OpenLayers.Format.WFST.v1.prototype.readers["wfs"]),
+        "gml": OpenLayers.Format.GML.v2.prototype.readers["gml"],
+        "feature": OpenLayers.Format.GML.v2.prototype.readers["feature"],
+        "ogc": OpenLayers.Format.Filter.v1_0_0.prototype.readers["ogc"]
+    },
+
+    /**
+     * Property: writers
+     * As a compliment to the readers property, this structure contains public
+     *     writing functions grouped by namespace alias and named like the
+     *     node names they produce.
+     */
+    writers: {
+        "wfs": OpenLayers.Util.applyDefaults({
+            "Query": function(options) {
+                options = OpenLayers.Util.extend({
+                    featureNS: this.featureNS,
+                    featurePrefix: this.featurePrefix,
+                    featureType: this.featureType,
+                    srsName: this.srsName,
+                    srsNameInQuery: this.srsNameInQuery
+                }, options);
+                var prefix = options.featurePrefix;
+                var node = this.createElementNSPlus("wfs:Query", {
+                    attributes: {
+                        typeName: (prefix ? prefix + ":" : "") +
+                            options.featureType
+                    }
+                });
+                if(options.srsNameInQuery && options.srsName) {
+                    node.setAttribute("srsName", options.srsName);
+                }
+                if(options.featureNS) {
+                    node.setAttribute("xmlns:" + prefix, options.featureNS);
+                }
+                if(options.propertyNames) {
+                    for(var i=0,len = options.propertyNames.length; i<len; i++) {
+                        this.writeNode(
+                            "ogc:PropertyName", 
+                            {property: options.propertyNames[i]},
+                            node
+                        );
+                    }
+                }
+                if(options.filter) {
+                    this.setFilterProperty(options.filter);
+                    this.writeNode("ogc:Filter", options.filter, node);
+                }
+                return node;
+            }
+        }, OpenLayers.Format.WFST.v1.prototype.writers["wfs"]),
+        "gml": OpenLayers.Format.GML.v2.prototype.writers["gml"],
+        "feature": OpenLayers.Format.GML.v2.prototype.writers["feature"],
+        "ogc": OpenLayers.Format.Filter.v1_0_0.prototype.writers["ogc"]
+    },
+   
+    CLASS_NAME: "OpenLayers.Format.WFST.v1_0_0" 
+});
+/* ======================================================================
+    OpenLayers/Renderer/Elements.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Renderer.js
+ */
+
+/**
+ * Class: OpenLayers.ElementsIndexer
+ * This class takes care of figuring out which order elements should be
+ *     placed in the DOM based on given indexing methods. 
+ */
+OpenLayers.ElementsIndexer = OpenLayers.Class({
+   
+    /**
+     * Property: maxZIndex
+     * {Integer} This is the largest-most z-index value for a node
+     *     contained within the indexer.
+     */
+    maxZIndex: null,
+    
+    /**
+     * Property: order
+     * {Array<String>} This is an array of node id's stored in the
+     *     order that they should show up on screen. Id's higher up in the
+     *     array (higher array index) represent nodes with higher z-indeces.
+     */
+    order: null, 
+    
+    /**
+     * Property: indices
+     * {Object} This is a hash that maps node ids to their z-index value
+     *     stored in the indexer. This is done to make finding a nodes z-index 
+     *     value O(1).
+     */
+    indices: null,
+    
+    /**
+     * Property: compare
+     * {Function} This is the function used to determine placement of
+     *     of a new node within the indexer. If null, this defaults to to
+     *     the Z_ORDER_DRAWING_ORDER comparison method.
+     */
+    compare: null,
+    
+    /**
+     * APIMethod: initialize
+     * Create a new indexer with 
+     * 
+     * Parameters:
+     * yOrdering - {Boolean} Whether to use y-ordering.
+     */
+    initialize: function(yOrdering) {
+
+        this.compare = yOrdering ? 
+            OpenLayers.ElementsIndexer.IndexingMethods.Z_ORDER_Y_ORDER :
+            OpenLayers.ElementsIndexer.IndexingMethods.Z_ORDER_DRAWING_ORDER;
+
+        this.clear();
+    },
+    
+    /**
+     * APIMethod: insert
+     * Insert a new node into the indexer. In order to find the correct 
+     *     positioning for the node to be inserted, this method uses a binary 
+     *     search. This makes inserting O(log(n)). 
+     * 
+     * Parameters:
+     * newNode - {DOMElement} The new node to be inserted.
+     * 
+     * Returns
+     * {DOMElement} the node before which we should insert our newNode, or
+     *     null if newNode can just be appended.
+     */
+    insert: function(newNode) {
+        // If the node is known to the indexer, remove it so we can
+        // recalculate where it should go.
+        if (this.exists(newNode)) {
+            this.remove(newNode);
+        }
+        
+        var nodeId = newNode.id;
+        
+        this.determineZIndex(newNode);       
+
+        var leftIndex = -1;
+        var rightIndex = this.order.length;
+        var middle;
+
+        while (rightIndex - leftIndex > 1) {
+            middle = parseInt((leftIndex + rightIndex) / 2);
+            
+            var placement = this.compare(this, newNode,
+                OpenLayers.Util.getElement(this.order[middle]));
+            
+            if (placement > 0) {
+                leftIndex = middle;
+            } else {
+                rightIndex = middle;
+            } 
+        }
+        
+        this.order.splice(rightIndex, 0, nodeId);
+        this.indices[nodeId] = this.getZIndex(newNode);
+        
+        // If the new node should be before another in the index
+        // order, return the node before which we have to insert the new one;
+        // else, return null to indicate that the new node can be appended.
+        return this.getNextElement(rightIndex);
+    },
+    
+    /**
+     * APIMethod: remove
+     * 
+     * Parameters:
+     * node - {DOMElement} The node to be removed.
+     */
+    remove: function(node) {
+        var nodeId = node.id;
+        var arrayIndex = OpenLayers.Util.indexOf(this.order, nodeId);
+        if (arrayIndex >= 0) {
+            // Remove it from the order array, as well as deleting the node
+            // from the indeces hash.
+            this.order.splice(arrayIndex, 1);
+            delete this.indices[nodeId];
+            
+            // Reset the maxium z-index based on the last item in the 
+            // order array.
+            if (this.order.length > 0) {
+                var lastId = this.order[this.order.length - 1];
+                this.maxZIndex = this.indices[lastId];
+            } else {
+                this.maxZIndex = 0;
+            }
+        }
+    },
+    
+    /**
+     * APIMethod: clear
+     */
+    clear: function() {
+        this.order = [];
+        this.indices = {};
+        this.maxZIndex = 0;
+    },
+    
+    /**
+     * APIMethod: exists
+     *
+     * Parameters:
+     * node - {DOMElement} The node to test for existence.
+     *
+     * Returns:
+     * {Boolean} Whether or not the node exists in the indexer?
+     */
+    exists: function(node) {
+        return (this.indices[node.id] != null);
+    },
+
+    /**
+     * APIMethod: getZIndex
+     * Get the z-index value for the current node from the node data itself.
+     * 
+     * Parameters:
+     * node - {DOMElement} The node whose z-index to get.
+     * 
+     * Returns:
+     * {Integer} The z-index value for the specified node (from the node 
+     *     data itself).
+     */
+    getZIndex: function(node) {
+        return node._style.graphicZIndex;  
+    },
+    
+    /**
+     * Method: determineZIndex
+     * Determine the z-index for the current node if there isn't one, 
+     *     and set the maximum value if we've found a new maximum.
+     * 
+     * Parameters:
+     * node - {DOMElement} 
+     */
+    determineZIndex: function(node) {
+        var zIndex = node._style.graphicZIndex;
+        
+        // Everything must have a zIndex. If none is specified,
+        // this means the user *must* (hint: assumption) want this
+        // node to succomb to drawing order. To enforce drawing order
+        // over all indexing methods, we'll create a new z-index that's
+        // greater than any currently in the indexer.
+        if (zIndex == null) {
+            zIndex = this.maxZIndex;
+            node._style.graphicZIndex = zIndex; 
+        } else if (zIndex > this.maxZIndex) {
+            this.maxZIndex = zIndex;
+        }
+    },
+
+    /**
+     * APIMethod: getNextElement
+     * Get the next element in the order stack.
+     * 
+     * Parameters:
+     * index - {Integer} The index of the current node in this.order.
+     * 
+     * Returns:
+     * {DOMElement} the node following the index passed in, or
+     *     null.
+     */
+    getNextElement: function(index) {
+        var nextIndex = index + 1;
+        if (nextIndex < this.order.length) {
+            var nextElement = OpenLayers.Util.getElement(this.order[nextIndex]);
+            if (nextElement == undefined) {
+                nextElement = this.getNextElement(nextIndex);
+            }
+            return nextElement;
+        } else {
+            return null;
+        } 
+    },
+    
+    CLASS_NAME: "OpenLayers.ElementsIndexer"
+});
+
+/**
+ * Namespace: OpenLayers.ElementsIndexer.IndexingMethods
+ * These are the compare methods for figuring out where a new node should be 
+ *     placed within the indexer. These methods are very similar to general 
+ *     sorting methods in that they return -1, 0, and 1 to specify the 
+ *     direction in which new nodes fall in the ordering.
+ */
+OpenLayers.ElementsIndexer.IndexingMethods = {
+    
+    /**
+     * Method: Z_ORDER
+     * This compare method is used by other comparison methods.
+     *     It can be used individually for ordering, but is not recommended,
+     *     because it doesn't subscribe to drawing order.
+     * 
+     * Parameters:
+     * indexer - {<OpenLayers.ElementsIndexer>}
+     * newNode - {DOMElement}
+     * nextNode - {DOMElement}
+     * 
+     * Returns:
+     * {Integer}
+     */
+    Z_ORDER: function(indexer, newNode, nextNode) {
+        var newZIndex = indexer.getZIndex(newNode);
+
+        var returnVal = 0;
+        if (nextNode) {
+            var nextZIndex = indexer.getZIndex(nextNode);
+            returnVal = newZIndex - nextZIndex; 
+        }
+        
+        return returnVal;
+    },
+
+    /**
+     * APIMethod: Z_ORDER_DRAWING_ORDER
+     * This method orders nodes by their z-index, but does so in a way
+     *     that, if there are other nodes with the same z-index, the newest 
+     *     drawn will be the front most within that z-index. This is the 
+     *     default indexing method.
+     * 
+     * Parameters:
+     * indexer - {<OpenLayers.ElementsIndexer>}
+     * newNode - {DOMElement}
+     * nextNode - {DOMElement}
+     * 
+     * Returns:
+     * {Integer}
+     */
+    Z_ORDER_DRAWING_ORDER: function(indexer, newNode, nextNode) {
+        var returnVal = OpenLayers.ElementsIndexer.IndexingMethods.Z_ORDER(
+            indexer, 
+            newNode, 
+            nextNode
+        );
+        
+        // Make Z_ORDER subscribe to drawing order by pushing it above
+        // all of the other nodes with the same z-index.
+        if (nextNode && returnVal == 0) {
+            returnVal = 1;
+        }
+        
+        return returnVal;
+    },
+
+    /**
+     * APIMethod: Z_ORDER_Y_ORDER
+     * This one should really be called Z_ORDER_Y_ORDER_DRAWING_ORDER, as it
+     *     best describes which ordering methods have precedence (though, the 
+     *     name would be too long). This method orders nodes by their z-index, 
+     *     but does so in a way that, if there are other nodes with the same 
+     *     z-index, the nodes with the lower y position will be "closer" than 
+     *     those with a higher y position. If two nodes have the exact same y 
+     *     position, however, then this method will revert to using drawing  
+     *     order to decide placement.
+     * 
+     * Parameters:
+     * indexer - {<OpenLayers.ElementsIndexer>}
+     * newNode - {DOMElement}
+     * nextNode - {DOMElement}
+     * 
+     * Returns:
+     * {Integer}
+     */
+    Z_ORDER_Y_ORDER: function(indexer, newNode, nextNode) {
+        var returnVal = OpenLayers.ElementsIndexer.IndexingMethods.Z_ORDER(
+            indexer, 
+            newNode, 
+            nextNode
+        );
+        
+        if (nextNode && returnVal === 0) {            
+            var result = nextNode._boundsBottom - newNode._boundsBottom;
+            returnVal = (result === 0) ? 1 : result;
+        }
+        
+        return returnVal;       
+    }
+};
+
+/**
+ * Class: OpenLayers.Renderer.Elements
+ * This is another virtual class in that it should never be instantiated by 
+ *  itself as a Renderer. It exists because there is *tons* of shared 
+ *  functionality between different vector libraries which use nodes/elements
+ *  as a base for rendering vectors. 
+ * 
+ * The highlevel bits of code that are implemented here are the adding and 
+ *  removing of geometries, which is essentially the same for any 
+ *  element-based renderer. The details of creating each node and drawing the
+ *  paths are of course different, but the machinery is the same. 
+ * 
+ * Inherits:
+ *  - <OpenLayers.Renderer>
+ */
+OpenLayers.Renderer.Elements = OpenLayers.Class(OpenLayers.Renderer, {
+
+    /**
+     * Property: rendererRoot
+     * {DOMElement}
+     */
+    rendererRoot: null,
+    
+    /**
+     * Property: root
+     * {DOMElement}
+     */
+    root: null,
+    
+    /**
+     * Property: vectorRoot
+     * {DOMElement}
+     */
+    vectorRoot: null,
+
+    /**
+     * Property: textRoot
+     * {DOMElement}
+     */
+    textRoot: null,
+
+    /**
+     * Property: xmlns
+     * {String}
+     */    
+    xmlns: null,
+    
+    /**
+     * Property: xOffset
+     * {Number} Offset to apply to the renderer viewport translation in x
+     * direction. If the renderer extent's center is on the right of the
+     * dateline (i.e. exceeds the world bounds), we shift the viewport to the
+     * left by one world width. This avoids that features disappear from the
+     * map viewport. Because our dateline handling logic in other places
+     * ensures that extents crossing the dateline always have a center
+     * exceeding the world bounds on the left, we need this offset to make sure
+     * that the same is true for the renderer extent in pixel space as well.
+     */
+    xOffset: 0,
+    
+    /**
+     * Property: rightOfDateLine
+     * {Boolean} Keeps track of the location of the map extent relative to the
+     * date line. The <setExtent> method compares this value (which is the one
+     * from the previous <setExtent> call) with the current position of the map
+     * extent relative to the date line and updates the xOffset when the extent
+     * has moved from one side of the date line to the other.
+     */
+    
+    /**
+     * Property: Indexer
+     * {<OpenLayers.ElementIndexer>} An instance of OpenLayers.ElementsIndexer 
+     *     created upon initialization if the zIndexing or yOrdering options
+     *     passed to this renderer's constructor are set to true.
+     */
+    indexer: null, 
+    
+    /**
+     * Constant: BACKGROUND_ID_SUFFIX
+     * {String}
+     */
+    BACKGROUND_ID_SUFFIX: "_background",
+    
+    /**
+     * Constant: LABEL_ID_SUFFIX
+     * {String}
+     */
+    LABEL_ID_SUFFIX: "_label",
+    
+    /**
+     * Constant: LABEL_OUTLINE_SUFFIX
+     * {String}
+     */
+    LABEL_OUTLINE_SUFFIX: "_outline",
+
+    /**
+     * Constructor: OpenLayers.Renderer.Elements
+     * 
+     * Parameters:
+     * containerID - {String}
+     * options - {Object} options for this renderer. 
+     *
+     * Supported options are:
+     *     yOrdering - {Boolean} Whether to use y-ordering
+     *     zIndexing - {Boolean} Whether to use z-indexing. Will be ignored
+     *         if yOrdering is set to true.
+     */
+    initialize: function(containerID, options) {
+        OpenLayers.Renderer.prototype.initialize.apply(this, arguments);
+
+        this.rendererRoot = this.createRenderRoot();
+        this.root = this.createRoot("_root");
+        this.vectorRoot = this.createRoot("_vroot");
+        this.textRoot = this.createRoot("_troot");
+        
+        this.root.appendChild(this.vectorRoot);
+        this.root.appendChild(this.textRoot);
+        
+        this.rendererRoot.appendChild(this.root);
+        this.container.appendChild(this.rendererRoot);
+        
+        if(options && (options.zIndexing || options.yOrdering)) {
+            this.indexer = new OpenLayers.ElementsIndexer(options.yOrdering);
+        }
+    },
+    
+    /**
+     * Method: destroy
+     */
+    destroy: function() {
+
+        this.clear(); 
+
+        this.rendererRoot = null;
+        this.root = null;
+        this.xmlns = null;
+
+        OpenLayers.Renderer.prototype.destroy.apply(this, arguments);
+    },
+    
+    /**
+     * Method: clear
+     * Remove all the elements from the root
+     */    
+    clear: function() {
+        var child;
+        var root = this.vectorRoot;
+        if (root) {
+            while (child = root.firstChild) {
+                root.removeChild(child);
+            }
+        }
+        root = this.textRoot;
+        if (root) {
+            while (child = root.firstChild) {
+                root.removeChild(child);
+            }
+        }
+        if (this.indexer) {
+            this.indexer.clear();
+        }
+    },
+    
+    /**
+     * Method: setExtent
+     * Set the visible part of the layer.
+     *
+     * Parameters:
+     * extent - {<OpenLayers.Bounds>}
+     * resolutionChanged - {Boolean}
+     *
+     * Returns:
+     * {Boolean} true to notify the layer that the new extent does not exceed
+     *     the coordinate range, and the features will not need to be redrawn.
+     *     False otherwise.
+     */
+    setExtent: function(extent, resolutionChanged) {
+        var coordSysUnchanged = OpenLayers.Renderer.prototype.setExtent.apply(this, arguments);
+        var resolution = this.getResolution();
+        if (this.map.baseLayer && this.map.baseLayer.wrapDateLine) {
+            var rightOfDateLine,
+                ratio = extent.getWidth() / this.map.getExtent().getWidth(),
+                extent = extent.scale(1 / ratio),
+                world = this.map.getMaxExtent();
+            if (world.right > extent.left && world.right < extent.right) {
+                rightOfDateLine = true;
+            } else if (world.left > extent.left && world.left < extent.right) {
+                rightOfDateLine = false;
+            }
+            if (rightOfDateLine !== this.rightOfDateLine || resolutionChanged) {
+                coordSysUnchanged = false;
+                this.xOffset = rightOfDateLine === true ?
+                    world.getWidth() / resolution : 0;
+            }
+            this.rightOfDateLine = rightOfDateLine;
+        }
+        return coordSysUnchanged;
+    },
+
+    /** 
+     * Method: getNodeType
+     * This function is in charge of asking the specific renderer which type
+     *     of node to create for the given geometry and style. All geometries
+     *     in an Elements-based renderer consist of one node and some
+     *     attributes. We have the nodeFactory() function which creates a node
+     *     for us, but it takes a 'type' as input, and that is precisely what
+     *     this function tells us.  
+     *  
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>}
+     * style - {Object}
+     * 
+     * Returns:
+     * {String} The corresponding node type for the specified geometry
+     */
+    getNodeType: function(geometry, style) { },
+
+    /** 
+     * Method: drawGeometry 
+     * Draw the geometry, creating new nodes, setting paths, setting style,
+     *     setting featureId on the node.  This method should only be called
+     *     by the renderer itself.
+     *
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>}
+     * style - {Object}
+     * featureId - {String}
+     * 
+     * Returns:
+     * {Boolean} true if the geometry has been drawn completely; null if
+     *     incomplete; false otherwise
+     */
+    drawGeometry: function(geometry, style, featureId) {
+        var className = geometry.CLASS_NAME;
+        var rendered = true;
+        if ((className == "OpenLayers.Geometry.Collection") ||
+            (className == "OpenLayers.Geometry.MultiPoint") ||
+            (className == "OpenLayers.Geometry.MultiLineString") ||
+            (className == "OpenLayers.Geometry.MultiPolygon")) {
+            for (var i = 0, len=geometry.components.length; i<len; i++) {
+                rendered = this.drawGeometry(
+                    geometry.components[i], style, featureId) && rendered;
+            }
+            return rendered;
+        }
+
+        rendered = false;
+        var removeBackground = false;
+        if (style.display != "none") {
+            if (style.backgroundGraphic) {
+                this.redrawBackgroundNode(geometry.id, geometry, style,
+                    featureId);
+            } else {
+                removeBackground = true;
+            }
+            rendered = this.redrawNode(geometry.id, geometry, style,
+                featureId);
+        }
+        if (rendered == false) {
+            var node = document.getElementById(geometry.id);
+            if (node) {
+                if (node._style.backgroundGraphic) {
+                    removeBackground = true;
+                }
+                node.parentNode.removeChild(node);
+            }
+        }
+        if (removeBackground) {
+            var node = document.getElementById(
+                geometry.id + this.BACKGROUND_ID_SUFFIX);
+            if (node) {
+                node.parentNode.removeChild(node);
+            }
+        }
+        return rendered;
+    },
+    
+    /**
+     * Method: redrawNode
+     * 
+     * Parameters:
+     * id - {String}
+     * geometry - {<OpenLayers.Geometry>}
+     * style - {Object}
+     * featureId - {String}
+     * 
+     * Returns:
+     * {Boolean} true if the complete geometry could be drawn, null if parts of
+     *     the geometry could not be drawn, false otherwise
+     */
+    redrawNode: function(id, geometry, style, featureId) {
+        style = this.applyDefaultSymbolizer(style);
+        // Get the node if it's already on the map.
+        var node = this.nodeFactory(id, this.getNodeType(geometry, style));
+        
+        // Set the data for the node, then draw it.
+        node._featureId = featureId;
+        node._boundsBottom = geometry.getBounds().bottom;
+        node._geometryClass = geometry.CLASS_NAME;
+        node._style = style;
+
+        var drawResult = this.drawGeometryNode(node, geometry, style);
+        if(drawResult === false) {
+            return false;
+        }
+         
+        node = drawResult.node;
+        
+        // Insert the node into the indexer so it can show us where to
+        // place it. Note that this operation is O(log(n)). If there's a
+        // performance problem (when dragging, for instance) this is
+        // likely where it would be.
+        if (this.indexer) {
+            var insert = this.indexer.insert(node);
+            if (insert) {
+                this.vectorRoot.insertBefore(node, insert);
+            } else {
+                this.vectorRoot.appendChild(node);
+            }
+        } else {
+            // if there's no indexer, simply append the node to root,
+            // but only if the node is a new one
+            if (node.parentNode !== this.vectorRoot){ 
+                this.vectorRoot.appendChild(node);
+            }
+        }
+        
+        this.postDraw(node);
+        
+        return drawResult.complete;
+    },
+    
+    /**
+     * Method: redrawBackgroundNode
+     * Redraws the node using special 'background' style properties. Basically
+     *     just calls redrawNode(), but instead of directly using the 
+     *     'externalGraphic', 'graphicXOffset', 'graphicYOffset', and 
+     *     'graphicZIndex' properties directly from the specified 'style' 
+     *     parameter, we create a new style object and set those properties 
+     *     from the corresponding 'background'-prefixed properties from 
+     *     specified 'style' parameter.
+     * 
+     * Parameters:
+     * id - {String}
+     * geometry - {<OpenLayers.Geometry>}
+     * style - {Object}
+     * featureId - {String}
+     * 
+     * Returns:
+     * {Boolean} true if the complete geometry could be drawn, null if parts of
+     *     the geometry could not be drawn, false otherwise
+     */
+    redrawBackgroundNode: function(id, geometry, style, featureId) {
+        var backgroundStyle = OpenLayers.Util.extend({}, style);
+        
+        // Set regular style attributes to apply to the background styles.
+        backgroundStyle.externalGraphic = backgroundStyle.backgroundGraphic;
+        backgroundStyle.graphicXOffset = backgroundStyle.backgroundXOffset;
+        backgroundStyle.graphicYOffset = backgroundStyle.backgroundYOffset;
+        backgroundStyle.graphicZIndex = backgroundStyle.backgroundGraphicZIndex;
+        backgroundStyle.graphicWidth = backgroundStyle.backgroundWidth || backgroundStyle.graphicWidth;
+        backgroundStyle.graphicHeight = backgroundStyle.backgroundHeight || backgroundStyle.graphicHeight;
+        
+        // Erase background styles.
+        backgroundStyle.backgroundGraphic = null;
+        backgroundStyle.backgroundXOffset = null;
+        backgroundStyle.backgroundYOffset = null;
+        backgroundStyle.backgroundGraphicZIndex = null;
+        
+        return this.redrawNode(
+            id + this.BACKGROUND_ID_SUFFIX, 
+            geometry, 
+            backgroundStyle, 
+            null
+        );
+    },
+
+    /**
+     * Method: drawGeometryNode
+     * Given a node, draw a geometry on the specified layer.
+     *     node and geometry are required arguments, style is optional.
+     *     This method is only called by the render itself.
+     *
+     * Parameters:
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * style - {Object}
+     * 
+     * Returns:
+     * {Object} a hash with properties "node" (the drawn node) and "complete"
+     *     (null if parts of the geometry could not be drawn, false if nothing
+     *     could be drawn)
+     */
+    drawGeometryNode: function(node, geometry, style) {
+        style = style || node._style;
+
+        var options = {
+            'isFilled': style.fill === undefined ?
+                true :
+                style.fill,
+            'isStroked': style.stroke === undefined ?
+                !!style.strokeWidth :
+                style.stroke
+        };
+        var drawn;
+        switch (geometry.CLASS_NAME) {
+            case "OpenLayers.Geometry.Point":
+                if(style.graphic === false) {
+                    options.isFilled = false;
+                    options.isStroked = false;
+                }
+                drawn = this.drawPoint(node, geometry);
+                break;
+            case "OpenLayers.Geometry.LineString":
+                options.isFilled = false;
+                drawn = this.drawLineString(node, geometry);
+                break;
+            case "OpenLayers.Geometry.LinearRing":
+                drawn = this.drawLinearRing(node, geometry);
+                break;
+            case "OpenLayers.Geometry.Polygon":
+                drawn = this.drawPolygon(node, geometry);
+                break;
+            case "OpenLayers.Geometry.Rectangle":
+                drawn = this.drawRectangle(node, geometry);
+                break;
+            default:
+                break;
+        }
+
+        node._options = options; 
+
+        //set style
+        //TBD simplify this
+        if (drawn != false) {
+            return {
+                node: this.setStyle(node, style, options, geometry),
+                complete: drawn
+            };
+        } else {
+            return false;
+        }
+    },
+    
+    /**
+     * Method: postDraw
+     * Things that have do be done after the geometry node is appended
+     *     to its parent node. To be overridden by subclasses.
+     * 
+     * Parameters:
+     * node - {DOMElement}
+     */
+    postDraw: function(node) {},
+    
+    /**
+     * Method: drawPoint
+     * Virtual function for drawing Point Geometry. 
+     *     Should be implemented by subclasses.
+     *     This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or false if the renderer could not draw the point
+     */ 
+    drawPoint: function(node, geometry) {},
+
+    /**
+     * Method: drawLineString
+     * Virtual function for drawing LineString Geometry. 
+     *     Should be implemented by subclasses.
+     *     This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or null if the renderer could not draw all components of
+     *     the linestring, or false if nothing could be drawn
+     */ 
+    drawLineString: function(node, geometry) {},
+
+    /**
+     * Method: drawLinearRing
+     * Virtual function for drawing LinearRing Geometry. 
+     *     Should be implemented by subclasses.
+     *     This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or null if the renderer could not draw all components
+     *     of the linear ring, or false if nothing could be drawn
+     */ 
+    drawLinearRing: function(node, geometry) {},
+
+    /**
+     * Method: drawPolygon
+     * Virtual function for drawing Polygon Geometry. 
+     *    Should be implemented by subclasses.
+     *    This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or null if the renderer could not draw all components
+     *     of the polygon, or false if nothing could be drawn
+     */ 
+    drawPolygon: function(node, geometry) {},
+
+    /**
+     * Method: drawRectangle
+     * Virtual function for drawing Rectangle Geometry. 
+     *     Should be implemented by subclasses.
+     *     This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or false if the renderer could not draw the rectangle
+     */ 
+    drawRectangle: function(node, geometry) {},
+
+    /**
+     * Method: drawCircle
+     * Virtual function for drawing Circle Geometry. 
+     *     Should be implemented by subclasses.
+     *     This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or false if the renderer could not draw the circle
+     */ 
+    drawCircle: function(node, geometry) {},
+
+    /**
+     * Method: removeText
+     * Removes a label
+     * 
+     * Parameters:
+     * featureId - {String}
+     */
+    removeText: function(featureId) {
+        var label = document.getElementById(featureId + this.LABEL_ID_SUFFIX);
+        if (label) {
+            this.textRoot.removeChild(label);
+        }
+        var outline = document.getElementById(featureId + this.LABEL_OUTLINE_SUFFIX);
+        if (outline) {
+            this.textRoot.removeChild(outline);
+        }
+    },
+
+    /**
+     * Method: getFeatureIdFromEvent
+     * 
+     * Parameters:
+     * evt - {Object} An <OpenLayers.Event> object
+     *
+     * Returns:
+     * {String} A feature id or undefined.
+     */
+    getFeatureIdFromEvent: function(evt) {
+        var target = evt.target;
+        var useElement = target && target.correspondingUseElement;
+        var node = useElement ? useElement : (target || evt.srcElement);
+        return node._featureId;
+    },
+
+    /** 
+     * Method: eraseGeometry
+     * Erase a geometry from the renderer. In the case of a multi-geometry, 
+     *     we cycle through and recurse on ourselves. Otherwise, we look for a 
+     *     node with the geometry.id, destroy its geometry, and remove it from
+     *     the DOM.
+     * 
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>}
+     * featureId - {String}
+     */
+    eraseGeometry: function(geometry, featureId) {
+        if ((geometry.CLASS_NAME == "OpenLayers.Geometry.MultiPoint") ||
+            (geometry.CLASS_NAME == "OpenLayers.Geometry.MultiLineString") ||
+            (geometry.CLASS_NAME == "OpenLayers.Geometry.MultiPolygon") ||
+            (geometry.CLASS_NAME == "OpenLayers.Geometry.Collection")) {
+            for (var i=0, len=geometry.components.length; i<len; i++) {
+                this.eraseGeometry(geometry.components[i], featureId);
+            }
+        } else {    
+            var element = OpenLayers.Util.getElement(geometry.id);
+            if (element && element.parentNode) {
+                if (element.geometry) {
+                    element.geometry.destroy();
+                    element.geometry = null;
+                }
+                element.parentNode.removeChild(element);
+
+                if (this.indexer) {
+                    this.indexer.remove(element);
+                }
+                
+                if (element._style.backgroundGraphic) {
+                    var backgroundId = geometry.id + this.BACKGROUND_ID_SUFFIX;
+                    var bElem = OpenLayers.Util.getElement(backgroundId);
+                    if (bElem && bElem.parentNode) {
+                        // No need to destroy the geometry since the element and the background
+                        // node share the same geometry.
+                        bElem.parentNode.removeChild(bElem);
+                    }
+                }
+            }
+        }
+    },
+
+    /** 
+     * Method: nodeFactory
+     * Create new node of the specified type, with the (optional) specified id.
+     * 
+     * If node already exists with same ID and a different type, we remove it
+     *     and then call ourselves again to recreate it.
+     * 
+     * Parameters:
+     * id - {String}
+     * type - {String} type Kind of node to draw.
+     * 
+     * Returns:
+     * {DOMElement} A new node of the given type and id.
+     */
+    nodeFactory: function(id, type) {
+        var node = OpenLayers.Util.getElement(id);
+        if (node) {
+            if (!this.nodeTypeCompare(node, type)) {
+                node.parentNode.removeChild(node);
+                node = this.nodeFactory(id, type);
+            }
+        } else {
+            node = this.createNode(type, id);
+        }
+        return node;
+    },
+    
+    /** 
+     * Method: nodeTypeCompare
+     * 
+     * Parameters:
+     * node - {DOMElement}
+     * type - {String} Kind of node
+     * 
+     * Returns:
+     * {Boolean} Whether or not the specified node is of the specified type
+     *     This function must be overridden by subclasses.
+     */
+    nodeTypeCompare: function(node, type) {},
+    
+    /** 
+     * Method: createNode
+     * 
+     * Parameters:
+     * type - {String} Kind of node to draw.
+     * id - {String} Id for node.
+     * 
+     * Returns:
+     * {DOMElement} A new node of the given type and id.
+     *     This function must be overridden by subclasses.
+     */
+    createNode: function(type, id) {},
+
+    /**
+     * Method: moveRoot
+     * moves this renderer's root to a different renderer.
+     * 
+     * Parameters:
+     * renderer - {<OpenLayers.Renderer>} target renderer for the moved root
+     */
+    moveRoot: function(renderer) {
+        var root = this.root;
+        if(renderer.root.parentNode == this.rendererRoot) {
+            root = renderer.root;
+        }
+        root.parentNode.removeChild(root);
+        renderer.rendererRoot.appendChild(root);
+    },
+    
+    /**
+     * Method: getRenderLayerId
+     * Gets the layer that this renderer's output appears on. If moveRoot was
+     * used, this will be different from the id of the layer containing the
+     * features rendered by this renderer.
+     * 
+     * Returns:
+     * {String} the id of the output layer.
+     */
+    getRenderLayerId: function() {
+        return this.root.parentNode.parentNode.id;
+    },
+    
+    /**
+     * Method: isComplexSymbol
+     * Determines if a symbol cannot be rendered using drawCircle
+     * 
+     * Parameters:
+     * graphicName - {String}
+     * 
+     * Returns
+     * {Boolean} true if the symbol is complex, false if not
+     */
+    isComplexSymbol: function(graphicName) {
+        return (graphicName != "circle") && !!graphicName;
+    },
+
+    CLASS_NAME: "OpenLayers.Renderer.Elements"
+});
+
+/* ======================================================================
+    OpenLayers/Control/Panel.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Control.js
+ * @requires OpenLayers/Events/buttonclick.js
+ */
+
+/**
+ * Class: OpenLayers.Control.Panel
+ * The Panel control is a container for other controls. With it toolbars
+ * may be composed.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.Panel = OpenLayers.Class(OpenLayers.Control, {
+    /**
+     * Property: controls
+     * {Array(<OpenLayers.Control>)}
+     */
+    controls: null,    
+    
+    /**
+     * APIProperty: autoActivate
+     * {Boolean} Activate the control when it is added to a map.  Default is
+     *     true.
+     */
+    autoActivate: true,
+
+    /** 
+     * APIProperty: defaultControl
+     * {<OpenLayers.Control>} The control which is activated when the control is
+     * activated (turned on), which also happens at instantiation.
+     * If <saveState> is true, <defaultControl> will be nullified after the
+     * first activation of the panel.
+     */
+    defaultControl: null,
+    
+    /**
+     * APIProperty: saveState
+     * {Boolean} If set to true, the active state of this panel's controls will
+     * be stored on panel deactivation, and restored on reactivation. Default
+     * is false.
+     */
+    saveState: false,
+      
+    /**
+     * APIProperty: allowDepress
+     * {Boolean} If is true the <OpenLayers.Control.TYPE_TOOL> controls can 
+     *     be deactivated by clicking the icon that represents them.  Default 
+     *     is false.
+     */
+    allowDepress: false,
+    
+    /**
+     * Property: activeState
+     * {Object} stores the active state of this panel's controls.
+     */
+    activeState: null,
+
+    /**
+     * Constructor: OpenLayers.Control.Panel
+     * Create a new control panel.
+     *
+     * Each control in the panel is represented by an icon. When clicking 
+     *     on an icon, the <activateControl> method is called.
+     *
+     * Specific properties for controls on a panel:
+     * type - {Number} One of <OpenLayers.Control.TYPE_TOOL>,
+     *     <OpenLayers.Control.TYPE_TOGGLE>, <OpenLayers.Control.TYPE_BUTTON>.
+     *     If not provided, <OpenLayers.Control.TYPE_TOOL> is assumed.
+     * title - {string} Text displayed when mouse is over the icon that 
+     *     represents the control.     
+     *
+     * The <OpenLayers.Control.type> of a control determines the behavior when
+     * clicking its icon:
+     * <OpenLayers.Control.TYPE_TOOL> - The control is activated and other
+     *     controls of this type in the same panel are deactivated. This is
+     *     the default type.
+     * <OpenLayers.Control.TYPE_TOGGLE> - The active state of the control is
+     *     toggled.
+     * <OpenLayers.Control.TYPE_BUTTON> - The
+     *     <OpenLayers.Control.Button.trigger> method of the control is called,
+     *     but its active state is not changed.
+     *
+     * If a control is <OpenLayers.Control.active>, it will be drawn with the
+     * olControl[Name]ItemActive class, otherwise with the
+     * olControl[Name]ItemInactive class.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be used
+     *     to extend the control.
+     */
+    initialize: function(options) {
+        OpenLayers.Control.prototype.initialize.apply(this, [options]);
+        this.controls = [];
+        this.activeState = {};
+    },
+
+    /**
+     * APIMethod: destroy
+     */
+    destroy: function() {
+        if (this.map) {
+            this.map.events.unregister("buttonclick", this, this.onButtonClick);
+        }
+        OpenLayers.Control.prototype.destroy.apply(this, arguments);
+        for (var ctl, i = this.controls.length - 1; i >= 0; i--) {
+            ctl = this.controls[i];
+            if (ctl.events) {
+                ctl.events.un({
+                    activate: this.iconOn,
+                    deactivate: this.iconOff
+                });
+            }
+            ctl.panel_div = null;
+        }
+        this.activeState = null;
+    },
+
+    /**
+     * APIMethod: activate
+     */
+    activate: function() {
+        if (OpenLayers.Control.prototype.activate.apply(this, arguments)) {
+            var control;
+            for (var i=0, len=this.controls.length; i<len; i++) {
+                control = this.controls[i];
+                if (control === this.defaultControl ||
+                            (this.saveState && this.activeState[control.id])) {
+                    control.activate();
+                }
+            }    
+            if (this.saveState === true) {
+                this.defaultControl = null;
+            }
+            this.redraw();
+            return true;
+        } else {
+            return false;
+        }
+    },
+    
+    /**
+     * APIMethod: deactivate
+     */
+    deactivate: function() {
+        if (OpenLayers.Control.prototype.deactivate.apply(this, arguments)) {
+            var control;
+            for (var i=0, len=this.controls.length; i<len; i++) {
+                control = this.controls[i];
+                this.activeState[control.id] = control.deactivate();
+            }    
+            this.redraw();
+            return true;
+        } else {
+            return false;
+        }
+    },
+    
+    /**
+     * Method: draw
+     *
+     * Returns:
+     * {DOMElement}
+     */    
+    draw: function() {
+        OpenLayers.Control.prototype.draw.apply(this, arguments);
+        if (this.outsideViewport) {
+            this.events.attachToElement(this.div);
+            this.events.register("buttonclick", this, this.onButtonClick);
+        } else {
+            this.map.events.register("buttonclick", this, this.onButtonClick);
+        }
+        this.addControlsToMap(this.controls);
+        return this.div;
+    },
+
+    /**
+     * Method: redraw
+     */
+    redraw: function() {
+        for (var l=this.div.childNodes.length, i=l-1; i>=0; i--) {
+            this.div.removeChild(this.div.childNodes[i]);
+        }
+        this.div.innerHTML = "";
+        if (this.active) {
+            for (var i=0, len=this.controls.length; i<len; i++) {
+                this.div.appendChild(this.controls[i].panel_div);
+            }
+        }
+    },
+    
+    /**
+     * APIMethod: activateControl
+     * This method is called when the user click on the icon representing a 
+     *     control in the panel.
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>}
+     */
+    activateControl: function (control) {
+        if (!this.active) { return false; }
+        if (control.type == OpenLayers.Control.TYPE_BUTTON) {
+            control.trigger();
+            return;
+        }
+        if (control.type == OpenLayers.Control.TYPE_TOGGLE) {
+            if (control.active) {
+                control.deactivate();
+            } else {
+                control.activate();
+            }
+            return;
+        }
+        if (this.allowDepress && control.active) {
+            control.deactivate();
+        } else {
+            var c;
+            for (var i=0, len=this.controls.length; i<len; i++) {
+                c = this.controls[i];
+                if (c != control &&
+                   (c.type === OpenLayers.Control.TYPE_TOOL || c.type == null)) {
+                    c.deactivate();
+                }
+            }
+            control.activate();
+        }
+    },
+
+    /**
+     * APIMethod: addControls
+     * To build a toolbar, you add a set of controls to it. addControls
+     * lets you add a single control or a list of controls to the 
+     * Control Panel.
+     *
+     * Parameters:
+     * controls - {<OpenLayers.Control>} Controls to add in the panel.
+     */    
+    addControls: function(controls) {
+        if (!(OpenLayers.Util.isArray(controls))) {
+            controls = [controls];
+        }
+        this.controls = this.controls.concat(controls);
+
+        for (var i=0, len=controls.length; i<len; i++) {
+            var control = controls[i],
+                element = this.createControlMarkup(control);
+            OpenLayers.Element.addClass(element, 
+                                        control.displayClass + "ItemInactive");
+            OpenLayers.Element.addClass(element, "olButton");
+            if (control.title != ""  && !element.title) {
+                element.title = control.title;
+            }
+            control.panel_div = element;
+        }
+
+        if (this.map) { // map.addControl() has already been called on the panel
+            this.addControlsToMap(controls);
+            this.redraw();
+        }
+    },
+
+    /**
+     * APIMethod: createControlMarkup
+     * This function just creates a div for the control. If specific HTML
+     * markup is needed this function can be overridden in specific classes,
+     * or at panel instantiation time:
+     *
+     * Example:
+     * (code)
+     * var panel = new OpenLayers.Control.Panel({
+     *     defaultControl: control,
+     *     // ovverride createControlMarkup to create actual buttons
+     *     // including texts wrapped into span elements.
+     *     createControlMarkup: function(control) {
+     *         var button = document.createElement('button'),
+     *             span = document.createElement('span');
+     *         if (control.text) {
+     *             span.innerHTML = control.text;
+     *         }
+     *         return button;
+     *     }
+     *  });
+     * (end)
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control to create the HTML
+     *     markup for.
+     *
+     * Returns:
+     * {DOMElement} The markup.
+     */
+    createControlMarkup: function(control) {
+        return document.createElement("div");
+    },
+   
+    /**
+     * Method: addControlsToMap
+     * Only for internal use in draw() and addControls() methods.
+     *
+     * Parameters:
+     * controls - {Array(<OpenLayers.Control>)} Controls to add into map.
+     */         
+    addControlsToMap: function (controls) {
+        var control;
+        for (var i=0, len=controls.length; i<len; i++) {
+            control = controls[i];
+            if (control.autoActivate === true) {
+                control.autoActivate = false;
+                this.map.addControl(control);
+                control.autoActivate = true;
+            } else {
+                this.map.addControl(control);
+                control.deactivate();
+            }
+            control.events.on({
+                activate: this.iconOn,
+                deactivate: this.iconOff
+            });
+        }  
+    },
+
+    /**
+     * Method: iconOn
+     * Internal use, for use only with "controls[i].events.on/un".
+     */
+     iconOn: function() {
+        var d = this.panel_div; // "this" refers to a control on panel!
+        var re = new RegExp("\\b(" + this.displayClass + "Item)Inactive\\b");
+        d.className = d.className.replace(re, "$1Active");
+    },
+
+    /**
+     * Method: iconOff
+     * Internal use, for use only with "controls[i].events.on/un".
+     */
+     iconOff: function() {
+        var d = this.panel_div; // "this" refers to a control on panel!
+        var re = new RegExp("\\b(" + this.displayClass + "Item)Active\\b");
+        d.className = d.className.replace(re, "$1Inactive");
+    },
+    
+    /**
+     * Method: onButtonClick
+     *
+     * Parameters:
+     * evt - {Event}
+     */
+    onButtonClick: function (evt) {
+        var controls = this.controls,
+            button = evt.buttonElement;
+        for (var i=controls.length-1; i>=0; --i) {
+            if (controls[i].panel_div === button) {
+                this.activateControl(controls[i]);
+                break;
+            }
+        }
+    },
+
+    /**
+     * APIMethod: getControlsBy
+     * Get a list of controls with properties matching the given criteria.
+     *
+     * Parameters:
+     * property - {String} A control property to be matched.
+     * match - {String | Object} A string to match.  Can also be a regular
+     *     expression literal or object.  In addition, it can be any object
+     *     with a method named test.  For reqular expressions or other, if
+     *     match.test(control[property]) evaluates to true, the control will be
+     *     included in the array returned.  If no controls are found, an empty
+     *     array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Control>)} A list of controls matching the given criteria.
+     *     An empty array is returned if no matches are found.
+     */
+    getControlsBy: function(property, match) {
+        var test = (typeof match.test == "function");
+        var found = OpenLayers.Array.filter(this.controls, function(item) {
+            return item[property] == match || (test && match.test(item[property]));
+        });
+        return found;
+    },
+
+    /**
+     * APIMethod: getControlsByName
+     * Get a list of contorls with names matching the given name.
+     *
+     * Parameters:
+     * match - {String | Object} A control name.  The name can also be a regular
+     *     expression literal or object.  In addition, it can be any object
+     *     with a method named test.  For reqular expressions or other, if
+     *     name.test(control.name) evaluates to true, the control will be included
+     *     in the list of controls returned.  If no controls are found, an empty
+     *     array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Control>)} A list of controls matching the given name.
+     *     An empty array is returned if no matches are found.
+     */
+    getControlsByName: function(match) {
+        return this.getControlsBy("name", match);
+    },
+
+    /**
+     * APIMethod: getControlsByClass
+     * Get a list of controls of a given type (CLASS_NAME).
+     *
+     * Parameters:
+     * match - {String | Object} A control class name.  The type can also be a
+     *     regular expression literal or object.  In addition, it can be any
+     *     object with a method named test.  For reqular expressions or other,
+     *     if type.test(control.CLASS_NAME) evaluates to true, the control will
+     *     be included in the list of controls returned.  If no controls are
+     *     found, an empty array is returned.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Control>)} A list of controls matching the given type.
+     *     An empty array is returned if no matches are found.
+     */
+    getControlsByClass: function(match) {
+        return this.getControlsBy("CLASS_NAME", match);
+    },
+
+    CLASS_NAME: "OpenLayers.Control.Panel"
+});
+
+/* ======================================================================
+    OpenLayers/Strategy.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ */
+
+/**
+ * Class: OpenLayers.Strategy
+ * Abstract vector layer strategy class.  Not to be instantiated directly.  Use
+ *     one of the strategy subclasses instead.
+ */
+OpenLayers.Strategy = OpenLayers.Class({
+    
+    /**
+     * Property: layer
+     * {<OpenLayers.Layer.Vector>} The layer this strategy belongs to.
+     */
+    layer: null,
+    
+    /**
+     * Property: options
+     * {Object} Any options sent to the constructor.
+     */
+    options: null,
+
+    /** 
+     * Property: active 
+     * {Boolean} The control is active.
+     */
+    active: null,
+
+    /**
+     * Property: autoActivate
+     * {Boolean} The creator of the strategy can set autoActivate to false
+     *      to fully control when the protocol is activated and deactivated.
+     *      Defaults to true.
+     */
+    autoActivate: true,
+
+    /**
+     * Property: autoDestroy
+     * {Boolean} The creator of the strategy can set autoDestroy to false
+     *      to fully control when the strategy is destroyed. Defaults to
+     *      true.
+     */
+    autoDestroy: true,
+
+    /**
+     * Constructor: OpenLayers.Strategy
+     * Abstract class for vector strategies.  Create instances of a subclass.
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on the
+     *     instance.
+     */
+    initialize: function(options) {
+        OpenLayers.Util.extend(this, options);
+        this.options = options;
+        // set the active property here, so that user cannot override it
+        this.active = false;
+    },
+    
+    /**
+     * APIMethod: destroy
+     * Clean up the strategy.
+     */
+    destroy: function() {
+        this.deactivate();
+        this.layer = null;
+        this.options = null;
+    },
+
+    /**
+     * Method: setLayer
+     * Called to set the <layer> property.
+     *
+     * Parameters:
+     * layer - {<OpenLayers.Layer.Vector>}
+     */
+    setLayer: function(layer) {
+        this.layer = layer;
+    },
+    
+    /**
+     * Method: activate
+     * Activate the strategy.  Register any listeners, do appropriate setup.
+     *
+     * Returns:
+     * {Boolean} True if the strategy was successfully activated or false if
+     *      the strategy was already active.
+     */
+    activate: function() {
+        if (!this.active) {
+            this.active = true;
+            return true;
+        }
+        return false;
+    },
+    
+    /**
+     * Method: deactivate
+     * Deactivate the strategy.  Unregister any listeners, do appropriate
+     *     tear-down.
+     *
+     * Returns:
+     * {Boolean} True if the strategy was successfully deactivated or false if
+     *      the strategy was already inactive.
+     */
+    deactivate: function() {
+        if (this.active) {
+            this.active = false;
+            return true;
+        }
+        return false;
+    },
+   
+    CLASS_NAME: "OpenLayers.Strategy" 
+});
+/* ======================================================================
+    OpenLayers/Strategy/Fixed.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Strategy.js
+ */
+
+/**
+ * Class: OpenLayers.Strategy.Fixed
+ * A simple strategy that requests features once and never requests new data.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Strategy>
+ */
+OpenLayers.Strategy.Fixed = OpenLayers.Class(OpenLayers.Strategy, {
+    
+    /**
+     * APIProperty: preload
+     * {Boolean} Load data before layer made visible. Enabling this may result
+     *   in considerable overhead if your application loads many data layers
+     *   that are not visible by default. Default is false.
+     */
+    preload: false,
+
+    /**
+     * Constructor: OpenLayers.Strategy.Fixed
+     * Create a new Fixed strategy.
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on the
+     *     instance.
+     */
+
+    /**
+     * Method: activate
+     * Activate the strategy: load data or add listener to load when visible
+     *
+     * Returns:
+     * {Boolean} True if the strategy was successfully activated or false if
+     *      the strategy was already active.
+     */
+    activate: function() {
+        var activated = OpenLayers.Strategy.prototype.activate.apply(this, arguments);
+        if(activated) {
+            this.layer.events.on({
+                "refresh": this.load,
+                scope: this
+            });
+            if(this.layer.visibility == true || this.preload) {
+                this.load();
+            } else {
+                this.layer.events.on({
+                    "visibilitychanged": this.load,
+                    scope: this
+                });
+            }
+        }
+        return activated;
+    },
+    
+    /**
+     * Method: deactivate
+     * Deactivate the strategy.  Undo what is done in <activate>.
+     * 
+     * Returns:
+     * {Boolean} The strategy was successfully deactivated.
+     */
+    deactivate: function() {
+        var deactivated = OpenLayers.Strategy.prototype.deactivate.call(this);
+        if(deactivated) {
+            this.layer.events.un({
+                "refresh": this.load,
+                "visibilitychanged": this.load,
+                scope: this
+            });
+        }
+        return deactivated;
+    },
+
+    /**
+     * Method: load
+     * Tells protocol to load data and unhooks the visibilitychanged event
+     *
+     * Parameters:
+     * options - {Object} options to pass to protocol read.
+     */
+    load: function(options) {
+        var layer = this.layer;
+        layer.events.triggerEvent("loadstart", {filter: layer.filter});
+        layer.protocol.read(OpenLayers.Util.applyDefaults({
+            callback: this.merge,
+            filter: layer.filter,
+            scope: this
+        }, options));
+        layer.events.un({
+            "visibilitychanged": this.load,
+            scope: this
+        });
+    },
+
+    /**
+     * Method: merge
+     * Add all features to the layer.
+     *     If the layer projection differs from the map projection, features
+     *     will be transformed from the layer projection to the map projection.
+     *
+     * Parameters:
+     * resp - {<OpenLayers.Protocol.Response>} The response object passed
+     *      by the protocol.
+     */
+    merge: function(resp) {
+        var layer = this.layer;
+        layer.destroyFeatures();
+        var features = resp.features;
+        if (features && features.length > 0) {
+            var remote = layer.projection;
+            var local = layer.map.getProjectionObject();
+            if(!local.equals(remote)) {
+                var geom;
+                for(var i=0, len=features.length; i<len; ++i) {
+                    geom = features[i].geometry;
+                    if(geom) {
+                        geom.transform(remote, local);
+                    }
+                }
+            }
+            layer.addFeatures(features);
+        }
+        layer.events.triggerEvent("loadend", {response: resp});
+    },
+
+    CLASS_NAME: "OpenLayers.Strategy.Fixed"
+});
+/* ======================================================================
+    OpenLayers/Control/Zoom.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Control.js
+ * @requires OpenLayers/Events/buttonclick.js
+ */
+
+/**
+ * Class: OpenLayers.Control.Zoom
+ * The Zoom control is a pair of +/- links for zooming in and out.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.Zoom = OpenLayers.Class(OpenLayers.Control, {
+    
+    /**
+     * APIProperty: zoomInText
+     * {String}
+     * Text for zoom-in link.  Default is "+".
+     */
+    zoomInText: "+",
+
+    /**
+     * APIProperty: zoomInId
+     * {String}
+     * Instead of having the control create a zoom in link, you can provide 
+     *     the identifier for an anchor element already added to the document.
+     *     By default, an element with id "olZoomInLink" will be searched for
+     *     and used if it exists.
+     */
+    zoomInId: "olZoomInLink",
+
+    /**
+     * APIProperty: zoomOutText
+     * {String}
+     * Text for zoom-out link.  Default is "\u2212".
+     */
+    zoomOutText: "\u2212",
+
+    /**
+     * APIProperty: zoomOutId
+     * {String}
+     * Instead of having the control create a zoom out link, you can provide 
+     *     the identifier for an anchor element already added to the document.
+     *     By default, an element with id "olZoomOutLink" will be searched for
+     *     and used if it exists.
+     */
+    zoomOutId: "olZoomOutLink",
+
+    /**
+     * Method: draw
+     *
+     * Returns:
+     * {DOMElement} A reference to the DOMElement containing the zoom links.
+     */
+    draw: function() {
+        var div = OpenLayers.Control.prototype.draw.apply(this),
+            links = this.getOrCreateLinks(div),
+            zoomIn = links.zoomIn,
+            zoomOut = links.zoomOut,
+            eventsInstance = this.map.events;
+        
+        if (zoomOut.parentNode !== div) {
+            eventsInstance = this.events;
+            eventsInstance.attachToElement(zoomOut.parentNode);
+        }
+        eventsInstance.register("buttonclick", this, this.onZoomClick);
+        
+        this.zoomInLink = zoomIn;
+        this.zoomOutLink = zoomOut;
+        return div;
+    },
+    
+    /**
+     * Method: getOrCreateLinks
+     * 
+     * Parameters:
+     * el - {DOMElement}
+     *
+     * Return: 
+     * {Object} Object with zoomIn and zoomOut properties referencing links.
+     */
+    getOrCreateLinks: function(el) {
+        var zoomIn = document.getElementById(this.zoomInId),
+            zoomOut = document.getElementById(this.zoomOutId);
+        if (!zoomIn) {
+            zoomIn = document.createElement("a");
+            zoomIn.href = "#zoomIn";
+            zoomIn.appendChild(document.createTextNode(this.zoomInText));
+            zoomIn.className = "olControlZoomIn";
+            el.appendChild(zoomIn);
+        }
+        OpenLayers.Element.addClass(zoomIn, "olButton");
+        if (!zoomOut) {
+            zoomOut = document.createElement("a");
+            zoomOut.href = "#zoomOut";
+            zoomOut.appendChild(document.createTextNode(this.zoomOutText));
+            zoomOut.className = "olControlZoomOut";
+            el.appendChild(zoomOut);
+        }
+        OpenLayers.Element.addClass(zoomOut, "olButton");
+        return {
+            zoomIn: zoomIn, zoomOut: zoomOut
+        };
+    },
+    
+    /**
+     * Method: onZoomClick
+     * Called when zoomin/out link is clicked.
+     */
+    onZoomClick: function(evt) {
+        var button = evt.buttonElement;
+        if (button === this.zoomInLink) {
+            this.map.zoomIn();
+        } else if (button === this.zoomOutLink) {
+            this.map.zoomOut();
+        }
+    },
+
+    /** 
+     * Method: destroy
+     * Clean up.
+     */
+    destroy: function() {
+        if (this.map) {
+            this.map.events.unregister("buttonclick", this, this.onZoomClick);
+        }
+        delete this.zoomInLink;
+        delete this.zoomOutLink;
+        OpenLayers.Control.prototype.destroy.apply(this);
+    },
+
+    CLASS_NAME: "OpenLayers.Control.Zoom"
+});
+/* ======================================================================
+    OpenLayers/Protocol.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ */
+
+/**
+ * Class: OpenLayers.Protocol
+ * Abstract vector layer protocol class.  Not to be instantiated directly.  Use
+ *     one of the protocol subclasses instead.
+ */
+OpenLayers.Protocol = OpenLayers.Class({
+    
+    /**
+     * Property: format
+     * {<OpenLayers.Format>} The format used by this protocol.
+     */
+    format: null,
+    
+    /**
+     * Property: options
+     * {Object} Any options sent to the constructor.
+     */
+    options: null,
+
+    /**
+     * Property: autoDestroy
+     * {Boolean} The creator of the protocol can set autoDestroy to false
+     *      to fully control when the protocol is destroyed. Defaults to
+     *      true.
+     */
+    autoDestroy: true,
+   
+    /**
+     * Property: defaultFilter
+     * {<OpenLayers.Filter>} Optional default filter to read requests
+     */
+    defaultFilter: null,
+    
+    /**
+     * Constructor: OpenLayers.Protocol
+     * Abstract class for vector protocols.  Create instances of a subclass.
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on the
+     *     instance.
+     */
+    initialize: function(options) {
+        options = options || {};
+        OpenLayers.Util.extend(this, options);
+        this.options = options;
+    },
+
+    /**
+     * Method: mergeWithDefaultFilter
+     * Merge filter passed to the read method with the default one
+     *
+     * Parameters:
+     * filter - {<OpenLayers.Filter>}
+     */
+    mergeWithDefaultFilter: function(filter) {
+        var merged;
+        if (filter && this.defaultFilter) {
+            merged = new OpenLayers.Filter.Logical({
+                type: OpenLayers.Filter.Logical.AND,
+                filters: [this.defaultFilter, filter]
+            });
+        } else {
+            merged = filter || this.defaultFilter || undefined;
+        }
+        return merged;
+    },
+
+    /**
+     * APIMethod: destroy
+     * Clean up the protocol.
+     */
+    destroy: function() {
+        this.options = null;
+        this.format = null;
+    },
+    
+    /**
+     * APIMethod: read
+     * Construct a request for reading new features.
+     *
+     * Parameters:
+     * options - {Object} Optional object for configuring the request.
+     *
+     * Returns:
+     * {<OpenLayers.Protocol.Response>} An <OpenLayers.Protocol.Response>
+     * object, the same object will be passed to the callback function passed
+     * if one exists in the options object.
+     */
+    read: function(options) {
+        options = options || {};
+        options.filter = this.mergeWithDefaultFilter(options.filter);
+    },
+    
+    
+    /**
+     * APIMethod: create
+     * Construct a request for writing newly created features.
+     *
+     * Parameters:
+     * features - {Array({<OpenLayers.Feature.Vector>})} or
+     *            {<OpenLayers.Feature.Vector>}
+     * options - {Object} Optional object for configuring the request.
+     *
+     * Returns:
+     * {<OpenLayers.Protocol.Response>} An <OpenLayers.Protocol.Response>
+     * object, the same object will be passed to the callback function passed
+     * if one exists in the options object.
+     */
+    create: function() {
+    },
+    
+    /**
+     * APIMethod: update
+     * Construct a request updating modified features.
+     *
+     * Parameters:
+     * features - {Array({<OpenLayers.Feature.Vector>})} or
+     *            {<OpenLayers.Feature.Vector>}
+     * options - {Object} Optional object for configuring the request.
+     *
+     * Returns:
+     * {<OpenLayers.Protocol.Response>} An <OpenLayers.Protocol.Response>
+     * object, the same object will be passed to the callback function passed
+     * if one exists in the options object.
+     */
+    update: function() {
+    },
+    
+    /**
+     * APIMethod: delete
+     * Construct a request deleting a removed feature.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>}
+     * options - {Object} Optional object for configuring the request.
+     *
+     * Returns:
+     * {<OpenLayers.Protocol.Response>} An <OpenLayers.Protocol.Response>
+     * object, the same object will be passed to the callback function passed
+     * if one exists in the options object.
+     */
+    "delete": function() {
+    },
+
+    /**
+     * APIMethod: commit
+     * Go over the features and for each take action
+     * based on the feature state. Possible actions are create,
+     * update and delete.
+     *
+     * Parameters:
+     * features - {Array({<OpenLayers.Feature.Vector>})}
+     * options - {Object} Object whose possible keys are "create", "update",
+     *      "delete", "callback" and "scope", the values referenced by the
+     *      first three are objects as passed to the "create", "update", and
+     *      "delete" methods, the value referenced by the "callback" key is
+     *      a function which is called when the commit operation is complete
+     *      using the scope referenced by the "scope" key.
+     *
+     * Returns:
+     * {Array({<OpenLayers.Protocol.Response>})} An array of
+     * <OpenLayers.Protocol.Response> objects.
+     */
+    commit: function() {
+    },
+
+    /**
+     * Method: abort
+     * Abort an ongoing request.
+     *
+     * Parameters:
+     * response - {<OpenLayers.Protocol.Response>}
+     */
+    abort: function(response) {
+    },
+   
+    /**
+     * Method: createCallback
+     * Returns a function that applies the given public method with resp and
+     *     options arguments.
+     *
+     * Parameters:
+     * method - {Function} The method to be applied by the callback.
+     * response - {<OpenLayers.Protocol.Response>} The protocol response object.
+     * options - {Object} Options sent to the protocol method
+     */
+    createCallback: function(method, response, options) {
+        return OpenLayers.Function.bind(function() {
+            method.apply(this, [response, options]);
+        }, this);
+    },
+   
+    CLASS_NAME: "OpenLayers.Protocol" 
+});
+
+/**
+ * Class: OpenLayers.Protocol.Response
+ * Protocols return Response objects to their users.
+ */
+OpenLayers.Protocol.Response = OpenLayers.Class({
+    /**
+     * Property: code
+     * {Number} - OpenLayers.Protocol.Response.SUCCESS or
+     *            OpenLayers.Protocol.Response.FAILURE
+     */
+    code: null,
+
+    /**
+     * Property: requestType
+     * {String} The type of request this response corresponds to. Either
+     *      "create", "read", "update" or "delete".
+     */
+    requestType: null,
+
+    /**
+     * Property: last
+     * {Boolean} - true if this is the last response expected in a commit,
+     * false otherwise, defaults to true.
+     */
+    last: true,
+
+    /**
+     * Property: features
+     * {Array({<OpenLayers.Feature.Vector>})} or {<OpenLayers.Feature.Vector>}
+     * The features returned in the response by the server. Depending on the 
+     * protocol's read payload, either features or data will be populated.
+     */
+    features: null,
+
+    /**
+     * Property: data
+     * {Object}
+     * The data returned in the response by the server. Depending on the 
+     * protocol's read payload, either features or data will be populated.
+     */
+    data: null,
+
+    /**
+     * Property: reqFeatures
+     * {Array({<OpenLayers.Feature.Vector>})} or {<OpenLayers.Feature.Vector>}
+     * The features provided by the user and placed in the request by the
+     *      protocol.
+     */
+    reqFeatures: null,
+
+    /**
+     * Property: priv
+     */
+    priv: null,
+
+    /**
+     * Property: error
+     * {Object} The error object in case a service exception was encountered.
+     */
+    error: null,
+
+    /**
+     * Constructor: OpenLayers.Protocol.Response
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on the
+     *     instance.
+     */
+    initialize: function(options) {
+        OpenLayers.Util.extend(this, options);
+    },
+
+    /**
+     * Method: success
+     *
+     * Returns:
+     * {Boolean} - true on success, false otherwise
+     */
+    success: function() {
+        return this.code > 0;
+    },
+
+    CLASS_NAME: "OpenLayers.Protocol.Response"
+});
+
+OpenLayers.Protocol.Response.SUCCESS = 1;
+OpenLayers.Protocol.Response.FAILURE = 0;
+/* ======================================================================
+    OpenLayers/Protocol/WFS.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Protocol.js
+ */
+
+/**
+ * Class: OpenLayers.Protocol.WFS
+ * Used to create a versioned WFS protocol.  Default version is 1.0.0.
+ *
+ * Returns:
+ * {<OpenLayers.Protocol>} A WFS protocol of the given version.
+ *
+ * Example:
+ * (code)
+ *     var protocol = new OpenLayers.Protocol.WFS({
+ *         version: "1.1.0",
+ *         url:  "http://demo.opengeo.org/geoserver/wfs",
+ *         featureType: "tasmania_roads",
+ *         featureNS: "http://www.openplans.org/topp",
+ *         geometryName: "the_geom"
+ *     });
+ * (end)
+ *
+ * See the protocols for specific WFS versions for more detail.
+ */
+OpenLayers.Protocol.WFS = function(options) {
+    options = OpenLayers.Util.applyDefaults(
+        options, OpenLayers.Protocol.WFS.DEFAULTS
+    );
+    var cls = OpenLayers.Protocol.WFS["v"+options.version.replace(/\./g, "_")];
+    if(!cls) {
+        throw "Unsupported WFS version: " + options.version;
+    }
+    return new cls(options);
+};
+
+/**
+ * Function: fromWMSLayer
+ * Convenience function to create a WFS protocol from a WMS layer.  This makes
+ *     the assumption that a WFS requests can be issued at the same URL as
+ *     WMS requests and that a WFS featureType exists with the same name as the
+ *     WMS layer.
+ *     
+ * This function is designed to auto-configure <url>, <featureType>,
+ *     <featurePrefix> and <srsName> for WFS <version> 1.1.0. Note that
+ *     srsName matching with the WMS layer will not work with WFS 1.0.0.
+ * 
+ * Parameters:
+ * layer - {<OpenLayers.Layer.WMS>} WMS layer that has a matching WFS
+ *     FeatureType at the same server url with the same typename.
+ * options - {Object} Default properties to be set on the protocol.
+ *
+ * Returns:
+ * {<OpenLayers.Protocol.WFS>}
+ */
+OpenLayers.Protocol.WFS.fromWMSLayer = function(layer, options) {
+    var typeName, featurePrefix;
+    var param = layer.params["LAYERS"];
+    var parts = (OpenLayers.Util.isArray(param) ? param[0] : param).split(":");
+    if(parts.length > 1) {
+        featurePrefix = parts[0];
+    }
+    typeName = parts.pop();
+    var protocolOptions = {
+        url: layer.url,
+        featureType: typeName,
+        featurePrefix: featurePrefix,
+        srsName: layer.projection && layer.projection.getCode() ||
+                 layer.map && layer.map.getProjectionObject().getCode(),
+        version: "1.1.0"
+    };
+    return new OpenLayers.Protocol.WFS(OpenLayers.Util.applyDefaults(
+        options, protocolOptions
+    ));
+};
+
+/**
+ * Constant: OpenLayers.Protocol.WFS.DEFAULTS
+ */
+OpenLayers.Protocol.WFS.DEFAULTS = {
+    "version": "1.0.0"
+};
+/* ======================================================================
+    OpenLayers/Request.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Events.js
+ * @requires OpenLayers/Request/XMLHttpRequest.js
+ */
+
+/**
+ * TODO: deprecate me
+ * Use OpenLayers.Request.proxy instead.
+ */
+OpenLayers.ProxyHost = "";
+
+/**
+ * Namespace: OpenLayers.Request
+ * The OpenLayers.Request namespace contains convenience methods for working
+ *     with XMLHttpRequests.  These methods work with a cross-browser
+ *     W3C compliant <OpenLayers.Request.XMLHttpRequest> class.
+ */
+if (!OpenLayers.Request) {
+    /**
+     * This allows for OpenLayers/Request/XMLHttpRequest.js to be included
+     * before or after this script.
+     */
+    OpenLayers.Request = {};
+}
+OpenLayers.Util.extend(OpenLayers.Request, {
+    
+    /**
+     * Constant: DEFAULT_CONFIG
+     * {Object} Default configuration for all requests.
+     */
+    DEFAULT_CONFIG: {
+        method: "GET",
+        url: window.location.href,
+        async: true,
+        user: undefined,
+        password: undefined,
+        params: null,
+        proxy: OpenLayers.ProxyHost,
+        headers: {},
+        data: null,
+        callback: function() {},
+        success: null,
+        failure: null,
+        scope: null
+    },
+    
+    /**
+     * Constant: URL_SPLIT_REGEX
+     */
+    URL_SPLIT_REGEX: /([^:]*:)\/\/([^:]*:?[^@]*@)?([^:\/\?]*):?([^\/\?]*)/,
+    
+    /**
+     * APIProperty: events
+     * {<OpenLayers.Events>} An events object that handles all 
+     *     events on the {<OpenLayers.Request>} object.
+     *
+     * All event listeners will receive an event object with three properties:
+     * request - {<OpenLayers.Request.XMLHttpRequest>} The request object.
+     * config - {Object} The config object sent to the specific request method.
+     * requestUrl - {String} The request url.
+     * 
+     * Supported event types:
+     * complete - Triggered when we have a response from the request, if a
+     *     listener returns false, no further response processing will take
+     *     place.
+     * success - Triggered when the HTTP response has a success code (200-299).
+     * failure - Triggered when the HTTP response does not have a success code.
+     */
+    events: new OpenLayers.Events(this),
+    
+    /**
+     * Method: makeSameOrigin
+     * Using the specified proxy, returns a same origin url of the provided url.
+     *
+     * Parameters:
+     * url - {String} An arbitrary url
+     * proxy {String|Function} The proxy to use to make the provided url a
+     *     same origin url.
+     *
+     * Returns
+     * {String} the same origin url. If no proxy is provided, the returned url
+     *     will be the same as the provided url.
+     */
+    makeSameOrigin: function(url, proxy) {
+        var sameOrigin = url.indexOf("http") !== 0;
+        var urlParts = !sameOrigin && url.match(this.URL_SPLIT_REGEX);
+        if (urlParts) {
+            var location = window.location;
+            sameOrigin =
+                urlParts[1] == location.protocol &&
+                urlParts[3] == location.hostname;
+            var uPort = urlParts[4], lPort = location.port;
+            if (uPort != 80 && uPort != "" || lPort != "80" && lPort != "") {
+                sameOrigin = sameOrigin && uPort == lPort;
+            }
+        }
+        if (!sameOrigin) {
+            if (proxy) {
+                if (typeof proxy == "function") {
+                    url = proxy(url);
+                } else {
+                    url = proxy + encodeURIComponent(url);
+                }
+            }
+        }
+        return url;
+    },
+
+    /**
+     * APIMethod: issue
+     * Create a new XMLHttpRequest object, open it, set any headers, bind
+     *     a callback to done state, and send any data.  It is recommended that
+     *     you use one <GET>, <POST>, <PUT>, <DELETE>, <OPTIONS>, or <HEAD>.
+     *     This method is only documented to provide detail on the configuration
+     *     options available to all request methods.
+     *
+     * Parameters:
+     * config - {Object} Object containing properties for configuring the
+     *     request.  Allowed configuration properties are described below.
+     *     This object is modified and should not be reused.
+     *
+     * Allowed config properties:
+     * method - {String} One of GET, POST, PUT, DELETE, HEAD, or
+     *     OPTIONS.  Default is GET.
+     * url - {String} URL for the request.
+     * async - {Boolean} Open an asynchronous request.  Default is true.
+     * user - {String} User for relevant authentication scheme.  Set
+     *     to null to clear current user.
+     * password - {String} Password for relevant authentication scheme.
+     *     Set to null to clear current password.
+     * proxy - {String} Optional proxy.  Defaults to
+     *     <OpenLayers.ProxyHost>.
+     * params - {Object} Any key:value pairs to be appended to the
+     *     url as a query string.  Assumes url doesn't already include a query
+     *     string or hash.  Typically, this is only appropriate for <GET>
+     *     requests where the query string will be appended to the url.
+     *     Parameter values that are arrays will be
+     *     concatenated with a comma (note that this goes against form-encoding)
+     *     as is done with <OpenLayers.Util.getParameterString>.
+     * headers - {Object} Object with header:value pairs to be set on
+     *     the request.
+     * data - {String | Document} Optional data to send with the request.
+     *     Typically, this is only used with <POST> and <PUT> requests.
+     *     Make sure to provide the appropriate "Content-Type" header for your
+     *     data.  For <POST> and <PUT> requests, the content type defaults to
+     *     "application-xml".  If your data is a different content type, or
+     *     if you are using a different HTTP method, set the "Content-Type"
+     *     header to match your data type.
+     * callback - {Function} Function to call when request is done.
+     *     To determine if the request failed, check request.status (200
+     *     indicates success).
+     * success - {Function} Optional function to call if request status is in
+     *     the 200s.  This will be called in addition to callback above and
+     *     would typically only be used as an alternative.
+     * failure - {Function} Optional function to call if request status is not
+     *     in the 200s.  This will be called in addition to callback above and
+     *     would typically only be used as an alternative.
+     * scope - {Object} If callback is a public method on some object,
+     *     set the scope to that object.
+     *
+     * Returns:
+     * {XMLHttpRequest} Request object.  To abort the request before a response
+     *     is received, call abort() on the request object.
+     */
+    issue: function(config) {        
+        // apply default config - proxy host may have changed
+        var defaultConfig = OpenLayers.Util.extend(
+            this.DEFAULT_CONFIG,
+            {proxy: OpenLayers.ProxyHost}
+        );
+        config = config || {};
+        config.headers = config.headers || {};
+        config = OpenLayers.Util.applyDefaults(config, defaultConfig);
+        config.headers = OpenLayers.Util.applyDefaults(config.headers, defaultConfig.headers);
+        // Always set the "X-Requested-With" header to signal that this request
+        // was issued through the XHR-object. Since header keys are case 
+        // insensitive and we want to allow overriding of the "X-Requested-With"
+        // header through the user we cannot use applyDefaults, but have to 
+        // check manually whether we were called with a "X-Requested-With"
+        // header.
+        var customRequestedWithHeader = false,
+            headerKey;
+        for(headerKey in config.headers) {
+            if (config.headers.hasOwnProperty( headerKey )) {
+                if (headerKey.toLowerCase() === 'x-requested-with') {
+                    customRequestedWithHeader = true;
+                }
+            }
+        }
+        if (customRequestedWithHeader === false) {
+            // we did not have a custom "X-Requested-With" header
+            config.headers['X-Requested-With'] = 'XMLHttpRequest';
+        }
+
+        // create request, open, and set headers
+        var request = new OpenLayers.Request.XMLHttpRequest();
+        var url = OpenLayers.Util.urlAppend(config.url, 
+            OpenLayers.Util.getParameterString(config.params || {}));
+        url = OpenLayers.Request.makeSameOrigin(url, config.proxy);
+        request.open(
+            config.method, url, config.async, config.user, config.password
+        );
+        for(var header in config.headers) {
+            request.setRequestHeader(header, config.headers[header]);
+        }
+
+        var events = this.events;
+
+        // we want to execute runCallbacks with "this" as the
+        // execution scope
+        var self = this;
+        
+        request.onreadystatechange = function() {
+            if(request.readyState == OpenLayers.Request.XMLHttpRequest.DONE) {
+                var proceed = events.triggerEvent(
+                    "complete",
+                    {request: request, config: config, requestUrl: url}
+                );
+                if(proceed !== false) {
+                    self.runCallbacks(
+                        {request: request, config: config, requestUrl: url}
+                    );
+                }
+            }
+        };
+        
+        // send request (optionally with data) and return
+        // call in a timeout for asynchronous requests so the return is
+        // available before readyState == 4 for cached docs
+        if(config.async === false) {
+            request.send(config.data);
+        } else {
+            window.setTimeout(function(){
+                if (request.readyState !== 0) { // W3C: 0-UNSENT
+                    request.send(config.data);
+                }
+            }, 0);
+        }
+        return request;
+    },
+    
+    /**
+     * Method: runCallbacks
+     * Calls the complete, success and failure callbacks. Application
+     *    can listen to the "complete" event, have the listener 
+     *    display a confirm window and always return false, and
+     *    execute OpenLayers.Request.runCallbacks if the user
+     *    hits "yes" in the confirm window.
+     *
+     * Parameters:
+     * options - {Object} Hash containing request, config and requestUrl keys
+     */
+    runCallbacks: function(options) {
+        var request = options.request;
+        var config = options.config;
+        
+        // bind callbacks to readyState 4 (done)
+        var complete = (config.scope) ?
+            OpenLayers.Function.bind(config.callback, config.scope) :
+            config.callback;
+        
+        // optional success callback
+        var success;
+        if(config.success) {
+            success = (config.scope) ?
+                OpenLayers.Function.bind(config.success, config.scope) :
+                config.success;
+        }
+
+        // optional failure callback
+        var failure;
+        if(config.failure) {
+            failure = (config.scope) ?
+                OpenLayers.Function.bind(config.failure, config.scope) :
+                config.failure;
+        }
+
+        if (OpenLayers.Util.createUrlObject(config.url).protocol == "file:" &&
+                                                        request.responseText) {
+            request.status = 200;
+        }
+        complete(request);
+
+        if (!request.status || (request.status >= 200 && request.status < 300)) {
+            this.events.triggerEvent("success", options);
+            if(success) {
+                success(request);
+            }
+        }
+        if(request.status && (request.status < 200 || request.status >= 300)) {                    
+            this.events.triggerEvent("failure", options);
+            if(failure) {
+                failure(request);
+            }
+        }
+    },
+    
+    /**
+     * APIMethod: GET
+     * Send an HTTP GET request.  Additional configuration properties are
+     *     documented in the <issue> method, with the method property set
+     *     to GET.
+     *
+     * Parameters:
+     * config - {Object} Object with properties for configuring the request.
+     *     See the <issue> method for documentation of allowed properties.
+     *     This object is modified and should not be reused.
+     * 
+     * Returns:
+     * {XMLHttpRequest} Request object.
+     */
+    GET: function(config) {
+        config = OpenLayers.Util.extend(config, {method: "GET"});
+        return OpenLayers.Request.issue(config);
+    },
+    
+    /**
+     * APIMethod: POST
+     * Send a POST request.  Additional configuration properties are
+     *     documented in the <issue> method, with the method property set
+     *     to POST and "Content-Type" header set to "application/xml".
+     *
+     * Parameters:
+     * config - {Object} Object with properties for configuring the request.
+     *     See the <issue> method for documentation of allowed properties.  The
+     *     default "Content-Type" header will be set to "application-xml" if
+     *     none is provided.  This object is modified and should not be reused.
+     * 
+     * Returns:
+     * {XMLHttpRequest} Request object.
+     */
+    POST: function(config) {
+        config = OpenLayers.Util.extend(config, {method: "POST"});
+        // set content type to application/xml if it isn't already set
+        config.headers = config.headers ? config.headers : {};
+        if(!("CONTENT-TYPE" in OpenLayers.Util.upperCaseObject(config.headers))) {
+            config.headers["Content-Type"] = "application/xml";
+        }
+        return OpenLayers.Request.issue(config);
+    },
+    
+    /**
+     * APIMethod: PUT
+     * Send an HTTP PUT request.  Additional configuration properties are
+     *     documented in the <issue> method, with the method property set
+     *     to PUT and "Content-Type" header set to "application/xml".
+     *
+     * Parameters:
+     * config - {Object} Object with properties for configuring the request.
+     *     See the <issue> method for documentation of allowed properties.  The
+     *     default "Content-Type" header will be set to "application-xml" if
+     *     none is provided.  This object is modified and should not be reused.
+     * 
+     * Returns:
+     * {XMLHttpRequest} Request object.
+     */
+    PUT: function(config) {
+        config = OpenLayers.Util.extend(config, {method: "PUT"});
+        // set content type to application/xml if it isn't already set
+        config.headers = config.headers ? config.headers : {};
+        if(!("CONTENT-TYPE" in OpenLayers.Util.upperCaseObject(config.headers))) {
+            config.headers["Content-Type"] = "application/xml";
+        }
+        return OpenLayers.Request.issue(config);
+    },
+    
+    /**
+     * APIMethod: DELETE
+     * Send an HTTP DELETE request.  Additional configuration properties are
+     *     documented in the <issue> method, with the method property set
+     *     to DELETE.
+     *
+     * Parameters:
+     * config - {Object} Object with properties for configuring the request.
+     *     See the <issue> method for documentation of allowed properties.
+     *     This object is modified and should not be reused.
+     * 
+     * Returns:
+     * {XMLHttpRequest} Request object.
+     */
+    DELETE: function(config) {
+        config = OpenLayers.Util.extend(config, {method: "DELETE"});
+        return OpenLayers.Request.issue(config);
+    },
+  
+    /**
+     * APIMethod: HEAD
+     * Send an HTTP HEAD request.  Additional configuration properties are
+     *     documented in the <issue> method, with the method property set
+     *     to HEAD.
+     *
+     * Parameters:
+     * config - {Object} Object with properties for configuring the request.
+     *     See the <issue> method for documentation of allowed properties.
+     *     This object is modified and should not be reused.
+     * 
+     * Returns:
+     * {XMLHttpRequest} Request object.
+     */
+    HEAD: function(config) {
+        config = OpenLayers.Util.extend(config, {method: "HEAD"});
+        return OpenLayers.Request.issue(config);
+    },
+    
+    /**
+     * APIMethod: OPTIONS
+     * Send an HTTP OPTIONS request.  Additional configuration properties are
+     *     documented in the <issue> method, with the method property set
+     *     to OPTIONS.
+     *
+     * Parameters:
+     * config - {Object} Object with properties for configuring the request.
+     *     See the <issue> method for documentation of allowed properties.
+     *     This object is modified and should not be reused.
+     * 
+     * Returns:
+     * {XMLHttpRequest} Request object.
+     */
+    OPTIONS: function(config) {
+        config = OpenLayers.Util.extend(config, {method: "OPTIONS"});
+        return OpenLayers.Request.issue(config);
+    }
+
+});
+/* ======================================================================
+    OpenLayers/Request/XMLHttpRequest.js
+   ====================================================================== */
+
+// XMLHttpRequest.js Copyright (C) 2010 Sergey Ilinsky (http://www.ilinsky.com)
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @requires OpenLayers/Request.js
+ */
+
+(function () {
+
+    // Save reference to earlier defined object implementation (if any)
+    var oXMLHttpRequest    = window.XMLHttpRequest;
+
+    // Define on browser type
+    var bGecko    = !!window.controllers,
+        bIE        = window.document.all && !window.opera,
+        bIE7    = bIE && window.navigator.userAgent.match(/MSIE 7.0/);
+
+    // Enables "XMLHttpRequest()" call next to "new XMLHttpReques()"
+    function fXMLHttpRequest() {
+        this._object    = oXMLHttpRequest && !bIE7 ? new oXMLHttpRequest : new window.ActiveXObject("Microsoft.XMLHTTP");
+        this._listeners    = [];
+    };
+
+    // Constructor
+    function cXMLHttpRequest() {
+        return new fXMLHttpRequest;
+    };
+    cXMLHttpRequest.prototype    = fXMLHttpRequest.prototype;
+
+    // BUGFIX: Firefox with Firebug installed would break pages if not executed
+    if (bGecko && oXMLHttpRequest.wrapped)
+        cXMLHttpRequest.wrapped    = oXMLHttpRequest.wrapped;
+
+    // Constants
+    cXMLHttpRequest.UNSENT                = 0;
+    cXMLHttpRequest.OPENED                = 1;
+    cXMLHttpRequest.HEADERS_RECEIVED    = 2;
+    cXMLHttpRequest.LOADING                = 3;
+    cXMLHttpRequest.DONE                = 4;
+
+    // Public Properties
+    cXMLHttpRequest.prototype.readyState    = cXMLHttpRequest.UNSENT;
+    cXMLHttpRequest.prototype.responseText    = '';
+    cXMLHttpRequest.prototype.responseXML    = null;
+    cXMLHttpRequest.prototype.status        = 0;
+    cXMLHttpRequest.prototype.statusText    = '';
+
+    // Priority proposal
+    cXMLHttpRequest.prototype.priority        = "NORMAL";
+
+    // Instance-level Events Handlers
+    cXMLHttpRequest.prototype.onreadystatechange    = null;
+
+    // Class-level Events Handlers
+    cXMLHttpRequest.onreadystatechange    = null;
+    cXMLHttpRequest.onopen                = null;
+    cXMLHttpRequest.onsend                = null;
+    cXMLHttpRequest.onabort                = null;
+
+    // Public Methods
+    cXMLHttpRequest.prototype.open    = function(sMethod, sUrl, bAsync, sUser, sPassword) {
+        // Delete headers, required when object is reused
+        delete this._headers;
+
+        // When bAsync parameter value is omitted, use true as default
+        if (arguments.length < 3)
+            bAsync    = true;
+
+        // Save async parameter for fixing Gecko bug with missing readystatechange in synchronous requests
+        this._async        = bAsync;
+
+        // Set the onreadystatechange handler
+        var oRequest    = this,
+            nState        = this.readyState,
+            fOnUnload;
+
+        // BUGFIX: IE - memory leak on page unload (inter-page leak)
+        if (bIE && bAsync) {
+            fOnUnload = function() {
+                if (nState != cXMLHttpRequest.DONE) {
+                    fCleanTransport(oRequest);
+                    // Safe to abort here since onreadystatechange handler removed
+                    oRequest.abort();
+                }
+            };
+            window.attachEvent("onunload", fOnUnload);
+        }
+
+        // Add method sniffer
+        if (cXMLHttpRequest.onopen)
+            cXMLHttpRequest.onopen.apply(this, arguments);
+
+        if (arguments.length > 4)
+            this._object.open(sMethod, sUrl, bAsync, sUser, sPassword);
+        else
+        if (arguments.length > 3)
+            this._object.open(sMethod, sUrl, bAsync, sUser);
+        else
+            this._object.open(sMethod, sUrl, bAsync);
+
+        this.readyState    = cXMLHttpRequest.OPENED;
+        fReadyStateChange(this);
+
+        this._object.onreadystatechange    = function() {
+            if (bGecko && !bAsync)
+                return;
+
+            // Synchronize state
+            oRequest.readyState        = oRequest._object.readyState;
+
+            //
+            fSynchronizeValues(oRequest);
+
+            // BUGFIX: Firefox fires unnecessary DONE when aborting
+            if (oRequest._aborted) {
+                // Reset readyState to UNSENT
+                oRequest.readyState    = cXMLHttpRequest.UNSENT;
+
+                // Return now
+                return;
+            }
+
+            if (oRequest.readyState == cXMLHttpRequest.DONE) {
+                // Free up queue
+                delete oRequest._data;
+/*                if (bAsync)
+                    fQueue_remove(oRequest);*/
+                //
+                fCleanTransport(oRequest);
+// Uncomment this block if you need a fix for IE cache
+/*
+                // BUGFIX: IE - cache issue
+                if (!oRequest._object.getResponseHeader("Date")) {
+                    // Save object to cache
+                    oRequest._cached    = oRequest._object;
+
+                    // Instantiate a new transport object
+                    cXMLHttpRequest.call(oRequest);
+
+                    // Re-send request
+                    if (sUser) {
+                         if (sPassword)
+                            oRequest._object.open(sMethod, sUrl, bAsync, sUser, sPassword);
+                        else
+                            oRequest._object.open(sMethod, sUrl, bAsync, sUser);
+                    }
+                    else
+                        oRequest._object.open(sMethod, sUrl, bAsync);
+                    oRequest._object.setRequestHeader("If-Modified-Since", oRequest._cached.getResponseHeader("Last-Modified") || new window.Date(0));
+                    // Copy headers set
+                    if (oRequest._headers)
+                        for (var sHeader in oRequest._headers)
+                            if (typeof oRequest._headers[sHeader] == "string")    // Some frameworks prototype objects with functions
+                                oRequest._object.setRequestHeader(sHeader, oRequest._headers[sHeader]);
+
+                    oRequest._object.onreadystatechange    = function() {
+                        // Synchronize state
+                        oRequest.readyState        = oRequest._object.readyState;
+
+                        if (oRequest._aborted) {
+                            //
+                            oRequest.readyState    = cXMLHttpRequest.UNSENT;
+
+                            // Return
+                            return;
+                        }
+
+                        if (oRequest.readyState == cXMLHttpRequest.DONE) {
+                            // Clean Object
+                            fCleanTransport(oRequest);
+
+                            // get cached request
+                            if (oRequest.status == 304)
+                                oRequest._object    = oRequest._cached;
+
+                            //
+                            delete oRequest._cached;
+
+                            //
+                            fSynchronizeValues(oRequest);
+
+                            //
+                            fReadyStateChange(oRequest);
+
+                            // BUGFIX: IE - memory leak in interrupted
+                            if (bIE && bAsync)
+                                window.detachEvent("onunload", fOnUnload);
+                        }
+                    };
+                    oRequest._object.send(null);
+
+                    // Return now - wait until re-sent request is finished
+                    return;
+                };
+*/
+                // BUGFIX: IE - memory leak in interrupted
+                if (bIE && bAsync)
+                    window.detachEvent("onunload", fOnUnload);
+            }
+
+            // BUGFIX: Some browsers (Internet Explorer, Gecko) fire OPEN readystate twice
+            if (nState != oRequest.readyState)
+                fReadyStateChange(oRequest);
+
+            nState    = oRequest.readyState;
+        }
+    };
+    function fXMLHttpRequest_send(oRequest) {
+        oRequest._object.send(oRequest._data);
+
+        // BUGFIX: Gecko - missing readystatechange calls in synchronous requests
+        if (bGecko && !oRequest._async) {
+            oRequest.readyState    = cXMLHttpRequest.OPENED;
+
+            // Synchronize state
+            fSynchronizeValues(oRequest);
+
+            // Simulate missing states
+            while (oRequest.readyState < cXMLHttpRequest.DONE) {
+                oRequest.readyState++;
+                fReadyStateChange(oRequest);
+                // Check if we are aborted
+                if (oRequest._aborted)
+                    return;
+            }
+        }
+    };
+    cXMLHttpRequest.prototype.send    = function(vData) {
+        // Add method sniffer
+        if (cXMLHttpRequest.onsend)
+            cXMLHttpRequest.onsend.apply(this, arguments);
+
+        if (!arguments.length)
+            vData    = null;
+
+        // BUGFIX: Safari - fails sending documents created/modified dynamically, so an explicit serialization required
+        // BUGFIX: IE - rewrites any custom mime-type to "text/xml" in case an XMLNode is sent
+        // BUGFIX: Gecko - fails sending Element (this is up to the implementation either to standard)
+        if (vData && vData.nodeType) {
+            vData    = window.XMLSerializer ? new window.XMLSerializer().serializeToString(vData) : vData.xml;
+            if (!this._headers["Content-Type"])
+                this._object.setRequestHeader("Content-Type", "application/xml");
+        }
+
+        this._data    = vData;
+/*
+        // Add to queue
+        if (this._async)
+            fQueue_add(this);
+        else*/
+            fXMLHttpRequest_send(this);
+    };
+    cXMLHttpRequest.prototype.abort    = function() {
+        // Add method sniffer
+        if (cXMLHttpRequest.onabort)
+            cXMLHttpRequest.onabort.apply(this, arguments);
+
+        // BUGFIX: Gecko - unnecessary DONE when aborting
+        if (this.readyState > cXMLHttpRequest.UNSENT)
+            this._aborted    = true;
+
+        this._object.abort();
+
+        // BUGFIX: IE - memory leak
+        fCleanTransport(this);
+
+        this.readyState    = cXMLHttpRequest.UNSENT;
+
+        delete this._data;
+/*        if (this._async)
+            fQueue_remove(this);*/
+    };
+    cXMLHttpRequest.prototype.getAllResponseHeaders    = function() {
+        return this._object.getAllResponseHeaders();
+    };
+    cXMLHttpRequest.prototype.getResponseHeader    = function(sName) {
+        return this._object.getResponseHeader(sName);
+    };
+    cXMLHttpRequest.prototype.setRequestHeader    = function(sName, sValue) {
+        // BUGFIX: IE - cache issue
+        if (!this._headers)
+            this._headers    = {};
+        this._headers[sName]    = sValue;
+
+        return this._object.setRequestHeader(sName, sValue);
+    };
+
+    // EventTarget interface implementation
+    cXMLHttpRequest.prototype.addEventListener    = function(sName, fHandler, bUseCapture) {
+        for (var nIndex = 0, oListener; oListener = this._listeners[nIndex]; nIndex++)
+            if (oListener[0] == sName && oListener[1] == fHandler && oListener[2] == bUseCapture)
+                return;
+        // Add listener
+        this._listeners.push([sName, fHandler, bUseCapture]);
+    };
+
+    cXMLHttpRequest.prototype.removeEventListener    = function(sName, fHandler, bUseCapture) {
+        for (var nIndex = 0, oListener; oListener = this._listeners[nIndex]; nIndex++)
+            if (oListener[0] == sName && oListener[1] == fHandler && oListener[2] == bUseCapture)
+                break;
+        // Remove listener
+        if (oListener)
+            this._listeners.splice(nIndex, 1);
+    };
+
+    cXMLHttpRequest.prototype.dispatchEvent    = function(oEvent) {
+        var oEventPseudo    = {
+            'type':            oEvent.type,
+            'target':        this,
+            'currentTarget':this,
+            'eventPhase':    2,
+            'bubbles':        oEvent.bubbles,
+            'cancelable':    oEvent.cancelable,
+            'timeStamp':    oEvent.timeStamp,
+            'stopPropagation':    function() {},    // There is no flow
+            'preventDefault':    function() {},    // There is no default action
+            'initEvent':        function() {}    // Original event object should be initialized
+        };
+
+        // Execute onreadystatechange
+        if (oEventPseudo.type == "readystatechange" && this.onreadystatechange)
+            (this.onreadystatechange.handleEvent || this.onreadystatechange).apply(this, [oEventPseudo]);
+
+        // Execute listeners
+        for (var nIndex = 0, oListener; oListener = this._listeners[nIndex]; nIndex++)
+            if (oListener[0] == oEventPseudo.type && !oListener[2])
+                (oListener[1].handleEvent || oListener[1]).apply(this, [oEventPseudo]);
+    };
+
+    //
+    cXMLHttpRequest.prototype.toString    = function() {
+        return '[' + "object" + ' ' + "XMLHttpRequest" + ']';
+    };
+
+    cXMLHttpRequest.toString    = function() {
+        return '[' + "XMLHttpRequest" + ']';
+    };
+
+    // Helper function
+    function fReadyStateChange(oRequest) {
+        // Sniffing code
+        if (cXMLHttpRequest.onreadystatechange)
+            cXMLHttpRequest.onreadystatechange.apply(oRequest);
+
+        // Fake event
+        oRequest.dispatchEvent({
+            'type':            "readystatechange",
+            'bubbles':        false,
+            'cancelable':    false,
+            'timeStamp':    new Date + 0
+        });
+    };
+
+    function fGetDocument(oRequest) {
+        var oDocument    = oRequest.responseXML,
+            sResponse    = oRequest.responseText;
+        // Try parsing responseText
+        if (bIE && sResponse && oDocument && !oDocument.documentElement && oRequest.getResponseHeader("Content-Type").match(/[^\/]+\/[^\+]+\+xml/)) {
+            oDocument    = new window.ActiveXObject("Microsoft.XMLDOM");
+            oDocument.async                = false;
+            oDocument.validateOnParse    = false;
+            oDocument.loadXML(sResponse);
+        }
+        // Check if there is no error in document
+        if (oDocument)
+            if ((bIE && oDocument.parseError != 0) || !oDocument.documentElement || (oDocument.documentElement && oDocument.documentElement.tagName == "parsererror"))
+                return null;
+        return oDocument;
+    };
+
+    function fSynchronizeValues(oRequest) {
+        try {    oRequest.responseText    = oRequest._object.responseText;    } catch (e) {}
+        try {    oRequest.responseXML    = fGetDocument(oRequest._object);    } catch (e) {}
+        try {    oRequest.status            = oRequest._object.status;            } catch (e) {}
+        try {    oRequest.statusText        = oRequest._object.statusText;        } catch (e) {}
+    };
+
+    function fCleanTransport(oRequest) {
+        // BUGFIX: IE - memory leak (on-page leak)
+        oRequest._object.onreadystatechange    = new window.Function;
+    };
+/*
+    // Queue manager
+    var oQueuePending    = {"CRITICAL":[],"HIGH":[],"NORMAL":[],"LOW":[],"LOWEST":[]},
+        aQueueRunning    = [];
+    function fQueue_add(oRequest) {
+        oQueuePending[oRequest.priority in oQueuePending ? oRequest.priority : "NORMAL"].push(oRequest);
+        //
+        setTimeout(fQueue_process);
+    };
+
+    function fQueue_remove(oRequest) {
+        for (var nIndex = 0, bFound    = false; nIndex < aQueueRunning.length; nIndex++)
+            if (bFound)
+                aQueueRunning[nIndex - 1]    = aQueueRunning[nIndex];
+            else
+            if (aQueueRunning[nIndex] == oRequest)
+                bFound    = true;
+        if (bFound)
+            aQueueRunning.length--;
+        //
+        setTimeout(fQueue_process);
+    };
+
+    function fQueue_process() {
+        if (aQueueRunning.length < 6) {
+            for (var sPriority in oQueuePending) {
+                if (oQueuePending[sPriority].length) {
+                    var oRequest    = oQueuePending[sPriority][0];
+                    oQueuePending[sPriority]    = oQueuePending[sPriority].slice(1);
+                    //
+                    aQueueRunning.push(oRequest);
+                    // Send request
+                    fXMLHttpRequest_send(oRequest);
+                    break;
+                }
+            }
+        }
+    };
+*/
+    // Internet Explorer 5.0 (missing apply)
+    if (!window.Function.prototype.apply) {
+        window.Function.prototype.apply    = function(oRequest, oArguments) {
+            if (!oArguments)
+                oArguments    = [];
+            oRequest.__func    = this;
+            oRequest.__func(oArguments[0], oArguments[1], oArguments[2], oArguments[3], oArguments[4]);
+            delete oRequest.__func;
+        };
+    };
+
+    // Register new object with window
+    /**
+     * Class: OpenLayers.Request.XMLHttpRequest
+     * Standard-compliant (W3C) cross-browser implementation of the
+     *     XMLHttpRequest object.  From
+     *     http://code.google.com/p/xmlhttprequest/.
+     */
+    if (!OpenLayers.Request) {
+        /**
+         * This allows for OpenLayers/Request.js to be included
+         * before or after this script.
+         */
+        OpenLayers.Request = {};
+    }
+    OpenLayers.Request.XMLHttpRequest = cXMLHttpRequest;
+})();
+/* ======================================================================
+    OpenLayers/Format/KML.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Date.js
+ * @requires OpenLayers/Format/XML.js
+ * @requires OpenLayers/Feature/Vector.js
+ * @requires OpenLayers/Geometry/Point.js
+ * @requires OpenLayers/Geometry/LineString.js
+ * @requires OpenLayers/Geometry/Polygon.js
+ * @requires OpenLayers/Geometry/Collection.js
+ * @requires OpenLayers/Request/XMLHttpRequest.js
+ * @requires OpenLayers/Projection.js
+ */
+
+/**
+ * Class: OpenLayers.Format.KML
+ * Read/Write KML. Create a new instance with the <OpenLayers.Format.KML>
+ *     constructor. 
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Format.XML>
+ */
+OpenLayers.Format.KML = OpenLayers.Class(OpenLayers.Format.XML, {
+    
+    /**
+     * Property: namespaces
+     * {Object} Mapping of namespace aliases to namespace URIs.
+     */
+    namespaces: {
+        kml: "http://www.opengis.net/kml/2.2",
+        gx: "http://www.google.com/kml/ext/2.2"
+    },
+
+    /**
+     * APIProperty: kmlns
+     * {String} KML Namespace to use. Defaults to 2.0 namespace.
+     */
+    kmlns: "http://earth.google.com/kml/2.0",
+    
+    /** 
+     * APIProperty: placemarksDesc
+     * {String} Name of the placemarks.  Default is "No description available".
+     */
+    placemarksDesc: "No description available",
+    
+    /** 
+     * APIProperty: foldersName
+     * {String} Name of the folders.  Default is "OpenLayers export".
+     *          If set to null, no name element will be created.
+     */
+    foldersName: "OpenLayers export",
+    
+    /** 
+     * APIProperty: foldersDesc
+     * {String} Description of the folders. Default is "Exported on [date]."
+     *          If set to null, no description element will be created.
+     */
+    foldersDesc: "Exported on " + new Date(),
+    
+    /**
+     * APIProperty: extractAttributes
+     * {Boolean} Extract attributes from KML.  Default is true.
+     *           Extracting styleUrls requires this to be set to true
+     *           Note that currently only Data and SimpleData 
+     *           elements are handled.
+     */
+    extractAttributes: true,
+    
+    /**
+     * APIProperty: kvpAttributes
+     * {Boolean} Only used if extractAttributes is true.
+     *           If set to true, attributes will be simple
+     *           key-value pairs, compatible with other formats,
+     *           Any displayName elements will be ignored.
+     *           If set to false, attributes will be objects,
+     *           retaining any displayName elements, but not
+     *           compatible with other formats. Any CDATA in
+     *           displayName will be read in as a string value.
+     *           Default is false.
+     */
+    kvpAttributes: false,
+    
+    /**
+     * Property: extractStyles
+     * {Boolean} Extract styles from KML.  Default is false.
+     *           Extracting styleUrls also requires extractAttributes to be
+     *           set to true
+     */
+    extractStyles: false,
+    
+    /**
+     * APIProperty: extractTracks
+     * {Boolean} Extract gx:Track elements from Placemark elements.  Default
+     *     is false.  If true, features will be generated for all points in
+     *     all gx:Track elements.  Features will have a when (Date) attribute
+     *     based on when elements in the track.  If tracks include angle
+     *     elements, features will have heading, tilt, and roll attributes.
+     *     If track point coordinates have three values, features will have
+     *     an altitude attribute with the third coordinate value.
+     */
+    extractTracks: false,
+    
+    /**
+     * APIProperty: trackAttributes
+     * {Array} If <extractTracks> is true, points within gx:Track elements will 
+     *     be parsed as features with when, heading, tilt, and roll attributes.
+     *     Any additional attribute names can be provided in <trackAttributes>.
+     */
+    trackAttributes: null,
+    
+    /**
+     * Property: internalns
+     * {String} KML Namespace to use -- defaults to the namespace of the
+     *     Placemark node being parsed, but falls back to kmlns. 
+     */
+    internalns: null,
+
+    /**
+     * Property: features
+     * {Array} Array of features
+     *     
+     */
+    features: null,
+
+    /**
+     * Property: styles
+     * {Object} Storage of style objects
+     *     
+     */
+    styles: null,
+    
+    /**
+     * Property: styleBaseUrl
+     * {String}
+     */
+    styleBaseUrl: "",
+
+    /**
+     * Property: fetched
+     * {Object} Storage of KML URLs that have been fetched before
+     *     in order to prevent reloading them.
+     */
+    fetched: null,
+
+    /**
+     * APIProperty: maxDepth
+     * {Integer} Maximum depth for recursive loading external KML URLs 
+     *           Defaults to 0: do no external fetching
+     */
+    maxDepth: 0,
+
+    /**
+     * Constructor: OpenLayers.Format.KML
+     * Create a new parser for KML.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *     this instance.
+     */
+    initialize: function(options) {
+        // compile regular expressions once instead of every time they are used
+        this.regExes = {
+            trimSpace: (/^\s*|\s*$/g),
+            removeSpace: (/\s*/g),
+            splitSpace: (/\s+/),
+            trimComma: (/\s*,\s*/g),
+            kmlColor: (/(\w{2})(\w{2})(\w{2})(\w{2})/),
+            kmlIconPalette: (/root:\/\/icons\/palette-(\d+)(\.\w+)/),
+            straightBracket: (/\$\[(.*?)\]/g)
+        };
+        // KML coordinates are always in longlat WGS84
+        this.externalProjection = new OpenLayers.Projection("EPSG:4326");
+
+        OpenLayers.Format.XML.prototype.initialize.apply(this, [options]);
+    },
+
+    /**
+     * APIMethod: read
+     * Read data from a string, and return a list of features. 
+     * 
+     * Parameters: 
+     * data    - {String} or {DOMElement} data to read/parse.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Feature.Vector>)} List of features.
+     */
+    read: function(data) {
+        this.features = [];
+        this.styles   = {};
+        this.fetched  = {};
+
+        // Set default options 
+        var options = {
+            depth: 0,
+            styleBaseUrl: this.styleBaseUrl
+        };
+
+        return this.parseData(data, options);
+    },
+
+    /**
+     * Method: parseData
+     * Read data from a string, and return a list of features. 
+     * 
+     * Parameters: 
+     * data    - {String} or {DOMElement} data to read/parse.
+     * options - {Object} Hash of options
+     *
+     * Returns:
+     * {Array(<OpenLayers.Feature.Vector>)} List of features.
+     */
+    parseData: function(data, options) {
+        if(typeof data == "string") {
+            data = OpenLayers.Format.XML.prototype.read.apply(this, [data]);
+        }
+
+        // Loop throught the following node types in this order and
+        // process the nodes found 
+        var types = ["Link", "NetworkLink", "Style", "StyleMap", "Placemark"];
+        for(var i=0, len=types.length; i<len; ++i) {
+            var type = types[i];
+
+            var nodes = this.getElementsByTagNameNS(data, "*", type);
+
+            // skip to next type if no nodes are found
+            if(nodes.length == 0) { 
+                continue;
+            }
+
+            switch (type.toLowerCase()) {
+
+                // Fetch external links 
+                case "link":
+                case "networklink":
+                    this.parseLinks(nodes, options);
+                    break;
+
+                // parse style information
+                case "style":
+                    if (this.extractStyles) {
+                        this.parseStyles(nodes, options);
+                    }
+                    break;
+                case "stylemap":
+                    if (this.extractStyles) {
+                        this.parseStyleMaps(nodes, options);
+                    }
+                    break;
+
+                // parse features
+                case "placemark":
+                    this.parseFeatures(nodes, options);
+                    break;
+            }
+        }
+        
+        return this.features;
+    },
+
+    /**
+     * Method: parseLinks
+     * Finds URLs of linked KML documents and fetches them
+     * 
+     * Parameters: 
+     * nodes   - {Array} of {DOMElement} data to read/parse.
+     * options - {Object} Hash of options
+     * 
+     */
+    parseLinks: function(nodes, options) {
+        
+        // Fetch external links <NetworkLink> and <Link>
+        // Don't do anything if we have reached our maximum depth for recursion
+        if (options.depth >= this.maxDepth) {
+            return false;
+        }
+
+        // increase depth
+        var newOptions = OpenLayers.Util.extend({}, options);
+        newOptions.depth++;
+
+        for(var i=0, len=nodes.length; i<len; i++) {
+            var href = this.parseProperty(nodes[i], "*", "href");
+            if(href && !this.fetched[href]) {
+                this.fetched[href] = true; // prevent reloading the same urls
+                var data = this.fetchLink(href);
+                if (data) {
+                    this.parseData(data, newOptions);
+                }
+            } 
+        }
+
+    },
+
+    /**
+     * Method: fetchLink
+     * Fetches a URL and returns the result
+     * 
+     * Parameters: 
+     * href  - {String} url to be fetched
+     * 
+     */
+    fetchLink: function(href) {
+        var request = OpenLayers.Request.GET({url: href, async: false});
+        if (request) {
+            return request.responseText;
+        }
+    },
+
+    /**
+     * Method: parseStyles
+     * Parses <Style> nodes
+     * 
+     * Parameters: 
+     * nodes    - {Array} of {DOMElement} data to read/parse.
+     * options  - {Object} Hash of options
+     * 
+     */
+    parseStyles: function(nodes, options) {
+        for(var i=0, len=nodes.length; i<len; i++) {
+            var style = this.parseStyle(nodes[i]);
+            if(style) {
+                var styleName = (options.styleBaseUrl || "") + "#" + style.id;
+                
+                this.styles[styleName] = style;
+            }
+        }
+    },
+
+    /**
+     * Method: parseKmlColor
+     * Parses a kml color (in 'aabbggrr' format) and returns the corresponding 
+     * color and opacity or null if the color is invalid.
+     *
+     * Parameters: 
+     * kmlColor - {String} a kml formated color
+     *
+     * Returns:
+     * {Object}
+     */
+    parseKmlColor: function(kmlColor) {
+        var color = null;
+        if (kmlColor) {
+            var matches = kmlColor.match(this.regExes.kmlColor);
+            if (matches) {
+                color = {
+                    color: '#' + matches[4] + matches[3] + matches[2],
+                    opacity: parseInt(matches[1], 16) / 255
+                };
+            }
+        }
+        return color;
+    },
+
+    /**
+     * Method: parseStyle
+     * Parses the children of a <Style> node and builds the style hash
+     * accordingly
+     * 
+     * Parameters: 
+     * node - {DOMElement} <Style> node
+     * 
+     */
+    parseStyle: function(node) {
+        var style = {};
+        
+        var types = ["LineStyle", "PolyStyle", "IconStyle", "BalloonStyle", 
+                     "LabelStyle"];
+        var type, styleTypeNode, nodeList, geometry, parser;
+        for(var i=0, len=types.length; i<len; ++i) {
+            type = types[i];
+            styleTypeNode = this.getElementsByTagNameNS(node, "*", type)[0];
+            if(!styleTypeNode) { 
+                continue;
+            }
+
+            // only deal with first geometry of this type
+            switch (type.toLowerCase()) {
+                case "linestyle":
+                    var kmlColor = this.parseProperty(styleTypeNode, "*", "color");
+                    var color = this.parseKmlColor(kmlColor);
+                    if (color) {
+                        style["strokeColor"] = color.color;
+                        style["strokeOpacity"] = color.opacity;
+                    }
+                    
+                    var width = this.parseProperty(styleTypeNode, "*", "width");
+                    if (width) {
+                        style["strokeWidth"] = width;
+                    }
+                    break;
+
+                case "polystyle":
+                    var kmlColor = this.parseProperty(styleTypeNode, "*", "color");
+                    var color = this.parseKmlColor(kmlColor);
+                    if (color) {
+                        style["fillOpacity"] = color.opacity;
+                        style["fillColor"] = color.color;
+                    }
+                    // Check if fill is disabled
+                    var fill = this.parseProperty(styleTypeNode, "*", "fill");
+                    if (fill == "0") {
+                        style["fillColor"] = "none";
+                    }
+                    // Check if outline is disabled
+                    var outline = this.parseProperty(styleTypeNode, "*", "outline");
+                    if (outline == "0") {
+                        style["strokeWidth"] = "0";
+                    }
+                   
+                    break;
+
+                case "iconstyle":
+                    // set scale
+                    var scale = parseFloat(this.parseProperty(styleTypeNode, 
+                                                          "*", "scale") || 1);
+  
+                    // set default width and height of icon
+                    var width = 32 * scale;
+                    var height = 32 * scale;
+
+                    var iconNode = this.getElementsByTagNameNS(styleTypeNode, 
+                                               "*", 
+                                               "Icon")[0];
+                    if (iconNode) {
+                        var href = this.parseProperty(iconNode, "*", "href");
+                        if (href) {                                                   
+
+                            var w = this.parseProperty(iconNode, "*", "w");
+                            var h = this.parseProperty(iconNode, "*", "h");
+
+                            // Settings for Google specific icons that are 64x64
+                            // We set the width and height to 64 and halve the
+                            // scale to prevent icons from being too big
+                            var google = "http://maps.google.com/mapfiles/kml";
+                            if (OpenLayers.String.startsWith(
+                                                 href, google) && !w && !h) {
+                                w = 64;
+                                h = 64;
+                                scale = scale / 2;
+                            }
+                                
+                            // if only dimension is defined, make sure the
+                            // other one has the same value
+                            w = w || h;
+                            h = h || w;
+
+                            if (w) {
+                                width = parseInt(w) * scale;
+                            }
+
+                            if (h) {
+                                height = parseInt(h) * scale;
+                            }
+
+                            // support for internal icons 
+                            //    (/root://icons/palette-x.png)
+                            // x and y tell the position on the palette:
+                            // - in pixels
+                            // - starting from the left bottom
+                            // We translate that to a position in the list 
+                            // and request the appropriate icon from the 
+                            // google maps website
+                            var matches = href.match(this.regExes.kmlIconPalette);
+                            if (matches)  {
+                                var palette = matches[1];
+                                var file_extension = matches[2];
+
+                                var x = this.parseProperty(iconNode, "*", "x");
+                                var y = this.parseProperty(iconNode, "*", "y");
+
+                                var posX = x ? x/32 : 0;
+                                var posY = y ? (7 - y/32) : 7;
+
+                                var pos = posY * 8 + posX;
+                                href = "http://maps.google.com/mapfiles/kml/pal" 
+                                     + palette + "/icon" + pos + file_extension;
+                            }
+
+                            style["graphicOpacity"] = 1; // fully opaque
+                            style["externalGraphic"] = href;
+                        }
+
+                    }
+
+
+                    // hotSpots define the offset for an Icon
+                    var hotSpotNode = this.getElementsByTagNameNS(styleTypeNode, 
+                                               "*", 
+                                               "hotSpot")[0];
+                    if (hotSpotNode) {
+                        var x = parseFloat(hotSpotNode.getAttribute("x"));
+                        var y = parseFloat(hotSpotNode.getAttribute("y"));
+
+                        var xUnits = hotSpotNode.getAttribute("xunits");
+                        if (xUnits == "pixels") {
+                            style["graphicXOffset"] = -x * scale;
+                        }
+                        else if (xUnits == "insetPixels") {
+                            style["graphicXOffset"] = -width + (x * scale);
+                        }
+                        else if (xUnits == "fraction") {
+                            style["graphicXOffset"] = -width * x;
+                        }
+
+                        var yUnits = hotSpotNode.getAttribute("yunits");
+                        if (yUnits == "pixels") {
+                            style["graphicYOffset"] = -height + (y * scale) + 1;
+                        }
+                        else if (yUnits == "insetPixels") {
+                            style["graphicYOffset"] = -(y * scale) + 1;
+                        }
+                        else if (yUnits == "fraction") {
+                            style["graphicYOffset"] =  -height * (1 - y) + 1;
+                        }
+                    }
+
+                    style["graphicWidth"] = width;
+                    style["graphicHeight"] = height;
+                    break;
+
+                case "balloonstyle":
+                    var balloonStyle = OpenLayers.Util.getXmlNodeValue(
+                                            styleTypeNode);
+                    if (balloonStyle) {
+                        style["balloonStyle"] = balloonStyle.replace(
+                                       this.regExes.straightBracket, "${$1}");
+                    }
+                    break;
+                case "labelstyle":
+                    var kmlColor = this.parseProperty(styleTypeNode, "*", "color");
+                    var color = this.parseKmlColor(kmlColor);
+                    if (color) {
+                        style["fontColor"] = color.color;
+                        style["fontOpacity"] = color.opacity;
+                    }
+                    break;
+
+                default:
+            }
+        }
+
+        // Some polygons have no line color, so we use the fillColor for that
+        if (!style["strokeColor"] && style["fillColor"]) {
+            style["strokeColor"] = style["fillColor"];
+        }
+
+        var id = node.getAttribute("id");
+        if (id && style) {
+            style.id = id;
+        }
+
+        return style;
+    },
+
+    /**
+     * Method: parseStyleMaps
+     * Parses <StyleMap> nodes, but only uses the 'normal' key
+     * 
+     * Parameters: 
+     * nodes    - {Array} of {DOMElement} data to read/parse.
+     * options  - {Object} Hash of options
+     * 
+     */
+    parseStyleMaps: function(nodes, options) {
+        // Only the default or "normal" part of the StyleMap is processed now
+        // To do the select or "highlight" bit, we'd need to change lots more
+
+        for(var i=0, len=nodes.length; i<len; i++) {
+            var node = nodes[i];
+            var pairs = this.getElementsByTagNameNS(node, "*", 
+                            "Pair");
+
+            var id = node.getAttribute("id");
+            for (var j=0, jlen=pairs.length; j<jlen; j++) {
+                var pair = pairs[j];
+                // Use the shortcut in the SLD format to quickly retrieve the 
+                // value of a node. Maybe it's good to have a method in 
+                // Format.XML to do this
+                var key = this.parseProperty(pair, "*", "key");
+                var styleUrl = this.parseProperty(pair, "*", "styleUrl");
+
+                if (styleUrl && key == "normal") {
+                    this.styles[(options.styleBaseUrl || "") + "#" + id] =
+                        this.styles[(options.styleBaseUrl || "") + styleUrl];
+                }
+
+                // TODO: implement the "select" part
+                //if (styleUrl && key == "highlight") {
+                //}
+
+            }
+        }
+
+    },
+
+
+    /**
+     * Method: parseFeatures
+     * Loop through all Placemark nodes and parse them.
+     * Will create a list of features
+     * 
+     * Parameters: 
+     * nodes    - {Array} of {DOMElement} data to read/parse.
+     * options  - {Object} Hash of options
+     * 
+     */
+    parseFeatures: function(nodes, options) {
+        var features = [];
+        for(var i=0, len=nodes.length; i<len; i++) {
+            var featureNode = nodes[i];
+            var feature = this.parseFeature.apply(this,[featureNode]) ;
+            if(feature) {
+
+                // Create reference to styleUrl 
+                if (this.extractStyles && feature.attributes &&
+                    feature.attributes.styleUrl) {
+                    feature.style = this.getStyle(feature.attributes.styleUrl, options);
+                }
+
+                if (this.extractStyles) {
+                    // Make sure that <Style> nodes within a placemark are 
+                    // processed as well
+                    var inlineStyleNode = this.getElementsByTagNameNS(featureNode,
+                                                        "*",
+                                                        "Style")[0];
+                    if (inlineStyleNode) {
+                        var inlineStyle= this.parseStyle(inlineStyleNode);
+                        if (inlineStyle) {
+                            feature.style = OpenLayers.Util.extend(
+                                feature.style, inlineStyle
+                            );
+                        }
+                    }
+                }
+
+                // check if gx:Track elements should be parsed
+                if (this.extractTracks) {
+                    var tracks = this.getElementsByTagNameNS(
+                        featureNode, this.namespaces.gx, "Track"
+                    );
+                    if (tracks && tracks.length > 0) {
+                        var track = tracks[0];
+                        var container = {
+                            features: [],
+                            feature: feature
+                        };
+                        this.readNode(track, container);
+                        if (container.features.length > 0) {
+                            features.push.apply(features, container.features);
+                        }
+                    }
+                } else {
+                    // add feature to list of features
+                    features.push(feature);                    
+                }
+            } else {
+                throw "Bad Placemark: " + i;
+            }
+        }
+
+        // add new features to existing feature list
+        this.features = this.features.concat(features);
+    },
+    
+    /**
+     * Property: readers
+     * Contains public functions, grouped by namespace prefix, that will
+     *     be applied when a namespaced node is found matching the function
+     *     name.  The function will be applied in the scope of this parser
+     *     with two arguments: the node being read and a context object passed
+     *     from the parent.
+     */
+    readers: {
+        "kml": {
+            "when": function(node, container) {
+                container.whens.push(OpenLayers.Date.parse(
+                    this.getChildValue(node)
+                ));
+            },
+            "_trackPointAttribute": function(node, container) {
+                var name = node.nodeName.split(":").pop();
+                container.attributes[name].push(this.getChildValue(node));
+            }
+        },
+        "gx": {
+            "Track": function(node, container) {
+                var obj = {
+                    whens: [],
+                    points: [],
+                    angles: []
+                };
+                if (this.trackAttributes) {
+                    var name;
+                    obj.attributes = {};
+                    for (var i=0, ii=this.trackAttributes.length; i<ii; ++i) {
+                        name = this.trackAttributes[i];
+                        obj.attributes[name] = [];
+                        if (!(name in this.readers.kml)) {
+                            this.readers.kml[name] = this.readers.kml._trackPointAttribute;
+                        }
+                    }
+                }
+                this.readChildNodes(node, obj);
+                if (obj.whens.length !== obj.points.length) {
+                    throw new Error("gx:Track with unequal number of when (" +
+                                    obj.whens.length + ") and gx:coord (" +
+                                    obj.points.length + ") elements.");
+                }
+                var hasAngles = obj.angles.length > 0;
+                if (hasAngles && obj.whens.length !== obj.angles.length) {
+                    throw new Error("gx:Track with unequal number of when (" +
+                                    obj.whens.length + ") and gx:angles (" +
+                                    obj.angles.length + ") elements.");
+                }
+                var feature, point, angles;
+                for (var i=0, ii=obj.whens.length; i<ii; ++i) {
+                    feature = container.feature.clone();
+                    feature.fid = container.feature.fid || container.feature.id;
+                    point = obj.points[i];
+                    feature.geometry = point;
+                    if ("z" in point) {
+                        feature.attributes.altitude = point.z;
+                    }
+                    if (this.internalProjection && this.externalProjection) {
+                        feature.geometry.transform(
+                            this.externalProjection, this.internalProjection
+                        ); 
+                    }
+                    if (this.trackAttributes) {
+                        for (var j=0, jj=this.trackAttributes.length; j<jj; ++j) {
+                            var name = this.trackAttributes[j];
+                            feature.attributes[name] = obj.attributes[name][i];
+                        }
+                    }
+                    feature.attributes.when = obj.whens[i];
+                    feature.attributes.trackId = container.feature.id;
+                    if (hasAngles) {
+                        angles = obj.angles[i];
+                        feature.attributes.heading = parseFloat(angles[0]);
+                        feature.attributes.tilt = parseFloat(angles[1]);
+                        feature.attributes.roll = parseFloat(angles[2]);
+                    }
+                    container.features.push(feature);
+                }
+            },
+            "coord": function(node, container) {
+                var str = this.getChildValue(node);
+                var coords = str.replace(this.regExes.trimSpace, "").split(/\s+/);
+                var point = new OpenLayers.Geometry.Point(coords[0], coords[1]);
+                if (coords.length > 2) {
+                    point.z = parseFloat(coords[2]);
+                }
+                container.points.push(point);
+            },
+            "angles": function(node, container) {
+                var str = this.getChildValue(node);
+                var parts = str.replace(this.regExes.trimSpace, "").split(/\s+/);
+                container.angles.push(parts);
+            }
+        }
+    },
+    
+    /**
+     * Method: parseFeature
+     * This function is the core of the KML parsing code in OpenLayers.
+     *     It creates the geometries that are then attached to the returned
+     *     feature, and calls parseAttributes() to get attribute data out.
+     *
+     * Parameters:
+     * node - {DOMElement}
+     *
+     * Returns:
+     * {<OpenLayers.Feature.Vector>} A vector feature.
+     */
+    parseFeature: function(node) {
+        // only accept one geometry per feature - look for highest "order"
+        var order = ["MultiGeometry", "Polygon", "LineString", "Point"];
+        var type, nodeList, geometry, parser;
+        for(var i=0, len=order.length; i<len; ++i) {
+            type = order[i];
+            this.internalns = node.namespaceURI ? 
+                    node.namespaceURI : this.kmlns;
+            nodeList = this.getElementsByTagNameNS(node, 
+                                                   this.internalns, type);
+            if(nodeList.length > 0) {
+                // only deal with first geometry of this type
+                var parser = this.parseGeometry[type.toLowerCase()];
+                if(parser) {
+                    geometry = parser.apply(this, [nodeList[0]]);
+                    if (this.internalProjection && this.externalProjection) {
+                        geometry.transform(this.externalProjection, 
+                                           this.internalProjection); 
+                    }                       
+                } else {
+                    throw new TypeError("Unsupported geometry type: " + type);
+                }
+                // stop looking for different geometry types
+                break;
+            }
+        }
+
+        // construct feature (optionally with attributes)
+        var attributes;
+        if(this.extractAttributes) {
+            attributes = this.parseAttributes(node);
+        }
+        var feature = new OpenLayers.Feature.Vector(geometry, attributes);
+
+        var fid = node.getAttribute("id") || node.getAttribute("name");
+        if(fid != null) {
+            feature.fid = fid;
+        }
+
+        return feature;
+    },        
+    
+    /**
+     * Method: getStyle
+     * Retrieves a style from a style hash using styleUrl as the key
+     * If the styleUrl doesn't exist yet, we try to fetch it 
+     * Internet
+     * 
+     * Parameters: 
+     * styleUrl  - {String} URL of style
+     * options   - {Object} Hash of options 
+     *
+     * Returns:
+     * {Object}  - (reference to) Style hash
+     */
+    getStyle: function(styleUrl, options) {
+
+        var styleBaseUrl = OpenLayers.Util.removeTail(styleUrl);
+
+        var newOptions = OpenLayers.Util.extend({}, options);
+        newOptions.depth++;
+        newOptions.styleBaseUrl = styleBaseUrl;
+
+        // Fetch remote Style URLs (if not fetched before) 
+        if (!this.styles[styleUrl] 
+                && !OpenLayers.String.startsWith(styleUrl, "#") 
+                && newOptions.depth <= this.maxDepth
+                && !this.fetched[styleBaseUrl] ) {
+
+            var data = this.fetchLink(styleBaseUrl);
+            if (data) {
+                this.parseData(data, newOptions);
+            }
+
+        }
+
+        // return requested style
+        var style = OpenLayers.Util.extend({}, this.styles[styleUrl]);
+        return style;
+    },
+    
+    /**
+     * Property: parseGeometry
+     * Properties of this object are the functions that parse geometries based
+     *     on their type.
+     */
+    parseGeometry: {
+        
+        /**
+         * Method: parseGeometry.point
+         * Given a KML node representing a point geometry, create an OpenLayers
+         *     point geometry.
+         *
+         * Parameters:
+         * node - {DOMElement} A KML Point node.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry.Point>} A point geometry.
+         */
+        point: function(node) {
+            var nodeList = this.getElementsByTagNameNS(node, this.internalns,
+                                                       "coordinates");
+            var coords = [];
+            if(nodeList.length > 0) {
+                var coordString = nodeList[0].firstChild.nodeValue;
+                coordString = coordString.replace(this.regExes.removeSpace, "");
+                coords = coordString.split(",");
+            }
+
+            var point = null;
+            if(coords.length > 1) {
+                // preserve third dimension
+                if(coords.length == 2) {
+                    coords[2] = null;
+                }
+                point = new OpenLayers.Geometry.Point(coords[0], coords[1],
+                                                      coords[2]);
+            } else {
+                throw "Bad coordinate string: " + coordString;
+            }
+            return point;
+        },
+        
+        /**
+         * Method: parseGeometry.linestring
+         * Given a KML node representing a linestring geometry, create an
+         *     OpenLayers linestring geometry.
+         *
+         * Parameters:
+         * node - {DOMElement} A KML LineString node.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry.LineString>} A linestring geometry.
+         */
+        linestring: function(node, ring) {
+            var nodeList = this.getElementsByTagNameNS(node, this.internalns,
+                                                       "coordinates");
+            var line = null;
+            if(nodeList.length > 0) {
+                var coordString = this.getChildValue(nodeList[0]);
+
+                coordString = coordString.replace(this.regExes.trimSpace,
+                                                  "");
+                coordString = coordString.replace(this.regExes.trimComma,
+                                                  ",");
+                var pointList = coordString.split(this.regExes.splitSpace);
+                var numPoints = pointList.length;
+                var points = new Array(numPoints);
+                var coords, numCoords;
+                for(var i=0; i<numPoints; ++i) {
+                    coords = pointList[i].split(",");
+                    numCoords = coords.length;
+                    if(numCoords > 1) {
+                        if(coords.length == 2) {
+                            coords[2] = null;
+                        }
+                        points[i] = new OpenLayers.Geometry.Point(coords[0],
+                                                                  coords[1],
+                                                                  coords[2]);
+                    } else {
+                        throw "Bad LineString point coordinates: " +
+                              pointList[i];
+                    }
+                }
+                if(numPoints) {
+                    if(ring) {
+                        line = new OpenLayers.Geometry.LinearRing(points);
+                    } else {
+                        line = new OpenLayers.Geometry.LineString(points);
+                    }
+                } else {
+                    throw "Bad LineString coordinates: " + coordString;
+                }
+            }
+
+            return line;
+        },
+        
+        /**
+         * Method: parseGeometry.polygon
+         * Given a KML node representing a polygon geometry, create an
+         *     OpenLayers polygon geometry.
+         *
+         * Parameters:
+         * node - {DOMElement} A KML Polygon node.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry.Polygon>} A polygon geometry.
+         */
+        polygon: function(node) {
+            var nodeList = this.getElementsByTagNameNS(node, this.internalns,
+                                                       "LinearRing");
+            var numRings = nodeList.length;
+            var components = new Array(numRings);
+            if(numRings > 0) {
+                // this assumes exterior ring first, inner rings after
+                var ring;
+                for(var i=0, len=nodeList.length; i<len; ++i) {
+                    ring = this.parseGeometry.linestring.apply(this,
+                                                        [nodeList[i], true]);
+                    if(ring) {
+                        components[i] = ring;
+                    } else {
+                        throw "Bad LinearRing geometry: " + i;
+                    }
+                }
+            }
+            return new OpenLayers.Geometry.Polygon(components);
+        },
+        
+        /**
+         * Method: parseGeometry.multigeometry
+         * Given a KML node representing a multigeometry, create an
+         *     OpenLayers geometry collection.
+         *
+         * Parameters:
+         * node - {DOMElement} A KML MultiGeometry node.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry.Collection>} A geometry collection.
+         */
+        multigeometry: function(node) {
+            var child, parser;
+            var parts = [];
+            var children = node.childNodes;
+            for(var i=0, len=children.length; i<len; ++i ) {
+                child = children[i];
+                if(child.nodeType == 1) {
+                    var type = (child.prefix) ?
+                            child.nodeName.split(":")[1] :
+                            child.nodeName;
+                    var parser = this.parseGeometry[type.toLowerCase()];
+                    if(parser) {
+                        parts.push(parser.apply(this, [child]));
+                    }
+                }
+            }
+            return new OpenLayers.Geometry.Collection(parts);
+        }
+        
+    },
+
+    /**
+     * Method: parseAttributes
+     *
+     * Parameters:
+     * node - {DOMElement}
+     *
+     * Returns:
+     * {Object} An attributes object.
+     */
+    parseAttributes: function(node) {
+        var attributes = {};
+       
+        // Extended Data is parsed first.
+        var edNodes = node.getElementsByTagName("ExtendedData");
+        if (edNodes.length) {
+            attributes = this.parseExtendedData(edNodes[0]);
+        }
+        
+        // assume attribute nodes are type 1 children with a type 3 or 4 child
+        var child, grandchildren, grandchild;
+        var children = node.childNodes;
+
+        for(var i=0, len=children.length; i<len; ++i) {
+            child = children[i];
+            if(child.nodeType == 1) {
+                grandchildren = child.childNodes;
+                if(grandchildren.length >= 1 && grandchildren.length <= 3) {
+                    var grandchild;
+                    switch (grandchildren.length) {
+                        case 1:
+                            grandchild = grandchildren[0];
+                            break;
+                        case 2:
+                            var c1 = grandchildren[0];
+                            var c2 = grandchildren[1];
+                            grandchild = (c1.nodeType == 3 || c1.nodeType == 4) ?
+                                c1 : c2;
+                            break;
+                        case 3:
+                        default:
+                            grandchild = grandchildren[1];
+                            break;
+                    }
+                    if(grandchild.nodeType == 3 || grandchild.nodeType == 4) {
+                        var name = (child.prefix) ?
+                                child.nodeName.split(":")[1] :
+                                child.nodeName;
+                        var value = OpenLayers.Util.getXmlNodeValue(grandchild);
+                        if (value) {
+                            value = value.replace(this.regExes.trimSpace, "");
+                            attributes[name] = value;
+                        }
+                    }
+                } 
+            }
+        }
+        return attributes;
+    },
+
+    /**
+     * Method: parseExtendedData
+     * Parse ExtendedData from KML. Limited support for schemas/datatypes.
+     *     See http://code.google.com/apis/kml/documentation/kmlreference.html#extendeddata
+     *     for more information on extendeddata.
+     */
+    parseExtendedData: function(node) {
+        var attributes = {};
+        var i, len, data, key;
+        var dataNodes = node.getElementsByTagName("Data");
+        for (i = 0, len = dataNodes.length; i < len; i++) {
+            data = dataNodes[i];
+            key = data.getAttribute("name");
+            var ed = {};
+            var valueNode = data.getElementsByTagName("value");
+            if (valueNode.length) {
+                ed['value'] = this.getChildValue(valueNode[0]);
+            }
+            if (this.kvpAttributes) {
+                attributes[key] = ed['value'];
+            } else {
+                var nameNode = data.getElementsByTagName("displayName");
+                if (nameNode.length) {
+                    ed['displayName'] = this.getChildValue(nameNode[0]);
+                }
+                attributes[key] = ed;
+            } 
+        }
+        var simpleDataNodes = node.getElementsByTagName("SimpleData");
+        for (i = 0, len = simpleDataNodes.length; i < len; i++) {
+            var ed = {};
+            data = simpleDataNodes[i];
+            key = data.getAttribute("name");
+            ed['value'] = this.getChildValue(data);
+            if (this.kvpAttributes) {
+                attributes[key] = ed['value'];
+            } else {
+                ed['displayName'] = key;
+                attributes[key] = ed;
+            }
+        }
+        
+        return attributes;    
+    },
+    
+    /**
+     * Method: parseProperty
+     * Convenience method to find a node and return its value
+     *
+     * Parameters:
+     * xmlNode    - {<DOMElement>}
+     * namespace  - {String} namespace of the node to find
+     * tagName    - {String} name of the property to parse
+     * 
+     * Returns:
+     * {String} The value for the requested property (defaults to null)
+     */    
+    parseProperty: function(xmlNode, namespace, tagName) {
+        var value;
+        var nodeList = this.getElementsByTagNameNS(xmlNode, namespace, tagName);
+        try {
+            value = OpenLayers.Util.getXmlNodeValue(nodeList[0]);
+        } catch(e) {
+            value = null;
+        }
+     
+        return value;
+    },                                                              
+
+    /**
+     * APIMethod: write
+     * Accept Feature Collection, and return a string. 
+     * 
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>)} An array of features.
+     *
+     * Returns:
+     * {String} A KML string.
+     */
+    write: function(features) {
+        if(!(OpenLayers.Util.isArray(features))) {
+            features = [features];
+        }
+        var kml = this.createElementNS(this.kmlns, "kml");
+        var folder = this.createFolderXML();
+        for(var i=0, len=features.length; i<len; ++i) {
+            folder.appendChild(this.createPlacemarkXML(features[i]));
+        }
+        kml.appendChild(folder);
+        return OpenLayers.Format.XML.prototype.write.apply(this, [kml]);
+    },
+
+    /**
+     * Method: createFolderXML
+     * Creates and returns a KML folder node
+     * 
+     * Returns:
+     * {DOMElement}
+     */
+    createFolderXML: function() {
+        // Folder
+        var folder = this.createElementNS(this.kmlns, "Folder");
+
+        // Folder name
+        if (this.foldersName) {
+            var folderName = this.createElementNS(this.kmlns, "name");
+            var folderNameText = this.createTextNode(this.foldersName); 
+            folderName.appendChild(folderNameText);
+            folder.appendChild(folderName);
+        }
+
+        // Folder description
+        if (this.foldersDesc) {
+            var folderDesc = this.createElementNS(this.kmlns, "description");        
+            var folderDescText = this.createTextNode(this.foldersDesc); 
+            folderDesc.appendChild(folderDescText);
+            folder.appendChild(folderDesc);
+        }
+
+        return folder;
+    },
+
+    /**
+     * Method: createPlacemarkXML
+     * Creates and returns a KML placemark node representing the given feature. 
+     * 
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>}
+     * 
+     * Returns:
+     * {DOMElement}
+     */
+    createPlacemarkXML: function(feature) {        
+        // Placemark name
+        var placemarkName = this.createElementNS(this.kmlns, "name");
+        var label = (feature.style && feature.style.label) ? feature.style.label : feature.id;
+        var name = feature.attributes.name || label;
+        placemarkName.appendChild(this.createTextNode(name));
+
+        // Placemark description
+        var placemarkDesc = this.createElementNS(this.kmlns, "description");
+        var desc = feature.attributes.description || this.placemarksDesc;
+        placemarkDesc.appendChild(this.createTextNode(desc));
+        
+        // Placemark
+        var placemarkNode = this.createElementNS(this.kmlns, "Placemark");
+        if(feature.fid != null) {
+            placemarkNode.setAttribute("id", feature.fid);
+        }
+        placemarkNode.appendChild(placemarkName);
+        placemarkNode.appendChild(placemarkDesc);
+
+        // Geometry node (Point, LineString, etc. nodes)
+        var geometryNode = this.buildGeometryNode(feature.geometry);
+        placemarkNode.appendChild(geometryNode);        
+        
+        // output attributes as extendedData
+        if (feature.attributes) {
+            var edNode = this.buildExtendedData(feature.attributes);
+            if (edNode) {
+                placemarkNode.appendChild(edNode);
+            }
+        }
+        
+        return placemarkNode;
+    },    
+
+    /**
+     * Method: buildGeometryNode
+     * Builds and returns a KML geometry node with the given geometry.
+     * 
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement}
+     */
+    buildGeometryNode: function(geometry) {
+        var className = geometry.CLASS_NAME;
+        var type = className.substring(className.lastIndexOf(".") + 1);
+        var builder = this.buildGeometry[type.toLowerCase()];
+        var node = null;
+        if(builder) {
+            node = builder.apply(this, [geometry]);
+        }
+        return node;
+    },
+
+    /**
+     * Property: buildGeometry
+     * Object containing methods to do the actual geometry node building
+     *     based on geometry type.
+     */
+    buildGeometry: {
+        // TBD: Anybody care about namespace aliases here (these nodes have
+        //    no prefixes)?
+
+        /**
+         * Method: buildGeometry.point
+         * Given an OpenLayers point geometry, create a KML point.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.Point>} A point geometry.
+         *
+         * Returns:
+         * {DOMElement} A KML point node.
+         */
+        point: function(geometry) {
+            var kml = this.createElementNS(this.kmlns, "Point");
+            kml.appendChild(this.buildCoordinatesNode(geometry));
+            return kml;
+        },
+        
+        /**
+         * Method: buildGeometry.multipoint
+         * Given an OpenLayers multipoint geometry, create a KML
+         *     GeometryCollection.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.Point>} A multipoint geometry.
+         *
+         * Returns:
+         * {DOMElement} A KML GeometryCollection node.
+         */
+        multipoint: function(geometry) {
+            return this.buildGeometry.collection.apply(this, [geometry]);
+        },
+
+        /**
+         * Method: buildGeometry.linestring
+         * Given an OpenLayers linestring geometry, create a KML linestring.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.LineString>} A linestring geometry.
+         *
+         * Returns:
+         * {DOMElement} A KML linestring node.
+         */
+        linestring: function(geometry) {
+            var kml = this.createElementNS(this.kmlns, "LineString");
+            kml.appendChild(this.buildCoordinatesNode(geometry));
+            return kml;
+        },
+        
+        /**
+         * Method: buildGeometry.multilinestring
+         * Given an OpenLayers multilinestring geometry, create a KML
+         *     GeometryCollection.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.Point>} A multilinestring geometry.
+         *
+         * Returns:
+         * {DOMElement} A KML GeometryCollection node.
+         */
+        multilinestring: function(geometry) {
+            return this.buildGeometry.collection.apply(this, [geometry]);
+        },
+
+        /**
+         * Method: buildGeometry.linearring
+         * Given an OpenLayers linearring geometry, create a KML linearring.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.LinearRing>} A linearring geometry.
+         *
+         * Returns:
+         * {DOMElement} A KML linearring node.
+         */
+        linearring: function(geometry) {
+            var kml = this.createElementNS(this.kmlns, "LinearRing");
+            kml.appendChild(this.buildCoordinatesNode(geometry));
+            return kml;
+        },
+        
+        /**
+         * Method: buildGeometry.polygon
+         * Given an OpenLayers polygon geometry, create a KML polygon.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.Polygon>} A polygon geometry.
+         *
+         * Returns:
+         * {DOMElement} A KML polygon node.
+         */
+        polygon: function(geometry) {
+            var kml = this.createElementNS(this.kmlns, "Polygon");
+            var rings = geometry.components;
+            var ringMember, ringGeom, type;
+            for(var i=0, len=rings.length; i<len; ++i) {
+                type = (i==0) ? "outerBoundaryIs" : "innerBoundaryIs";
+                ringMember = this.createElementNS(this.kmlns, type);
+                ringGeom = this.buildGeometry.linearring.apply(this,
+                                                               [rings[i]]);
+                ringMember.appendChild(ringGeom);
+                kml.appendChild(ringMember);
+            }
+            return kml;
+        },
+        
+        /**
+         * Method: buildGeometry.multipolygon
+         * Given an OpenLayers multipolygon geometry, create a KML
+         *     GeometryCollection.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.Point>} A multipolygon geometry.
+         *
+         * Returns:
+         * {DOMElement} A KML GeometryCollection node.
+         */
+        multipolygon: function(geometry) {
+            return this.buildGeometry.collection.apply(this, [geometry]);
+        },
+
+        /**
+         * Method: buildGeometry.collection
+         * Given an OpenLayers geometry collection, create a KML MultiGeometry.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry.Collection>} A geometry collection.
+         *
+         * Returns:
+         * {DOMElement} A KML MultiGeometry node.
+         */
+        collection: function(geometry) {
+            var kml = this.createElementNS(this.kmlns, "MultiGeometry");
+            var child;
+            for(var i=0, len=geometry.components.length; i<len; ++i) {
+                child = this.buildGeometryNode.apply(this,
+                                                     [geometry.components[i]]);
+                if(child) {
+                    kml.appendChild(child);
+                }
+            }
+            return kml;
+        }
+    },
+
+    /**
+     * Method: buildCoordinatesNode
+     * Builds and returns the KML coordinates node with the given geometry
+     * <coordinates>...</coordinates>
+     * 
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement}
+     */     
+    buildCoordinatesNode: function(geometry) {
+        var coordinatesNode = this.createElementNS(this.kmlns, "coordinates");
+        
+        var path;
+        var points = geometry.components;
+        if(points) {
+            // LineString or LinearRing
+            var point;
+            var numPoints = points.length;
+            var parts = new Array(numPoints);
+            for(var i=0; i<numPoints; ++i) {
+                point = points[i];
+                parts[i] = this.buildCoordinates(point);
+            }
+            path = parts.join(" ");
+        } else {
+            // Point
+            path = this.buildCoordinates(geometry);
+        }
+        
+        var txtNode = this.createTextNode(path);
+        coordinatesNode.appendChild(txtNode);
+        
+        return coordinatesNode;
+    },    
+    
+    /**
+     * Method: buildCoordinates
+     *
+     * Parameters:
+     * point - {<OpenLayers.Geometry.Point>}
+     *
+     * Returns
+     * {String} a coordinate pair
+     */
+    buildCoordinates: function(point) {
+        if (this.internalProjection && this.externalProjection) {
+            point = point.clone();
+            point.transform(this.internalProjection, 
+                               this.externalProjection);
+        }
+        return point.x + "," + point.y;                     
+    },
+
+    /**
+     * Method: buildExtendedData
+     *
+     * Parameters:
+     * attributes - {Object}
+     *
+     * Returns
+     * {DOMElement} A KML ExtendedData node or {null} if no attributes.
+     */
+    buildExtendedData: function(attributes) {
+        var extendedData = this.createElementNS(this.kmlns, "ExtendedData");
+        for (var attributeName in attributes) {
+            // empty, name, description, styleUrl attributes ignored
+            if (attributes[attributeName] && attributeName != "name" && attributeName != "description" && attributeName != "styleUrl") {
+                var data = this.createElementNS(this.kmlns, "Data");
+                data.setAttribute("name", attributeName);
+                var value = this.createElementNS(this.kmlns, "value");
+                if (typeof attributes[attributeName] == "object") {
+                    // cater for object attributes with 'value' properties
+                    // other object properties will output an empty node
+                    if (attributes[attributeName].value) {
+                        value.appendChild(this.createTextNode(attributes[attributeName].value));
+                    }
+                    if (attributes[attributeName].displayName) {
+                        var displayName = this.createElementNS(this.kmlns, "displayName");
+                        // displayName always written as CDATA
+                        displayName.appendChild(this.getXMLDoc().createCDATASection(attributes[attributeName].displayName));
+                        data.appendChild(displayName);
+                    }
+                } else {
+                    value.appendChild(this.createTextNode(attributes[attributeName]));
+                }
+                data.appendChild(value);
+                extendedData.appendChild(data);
+            }
+        }
+        if (this.isSimpleContent(extendedData)) {
+            return null;
+        } else {
+            return extendedData;
+        }
+    },
+    
+    CLASS_NAME: "OpenLayers.Format.KML" 
+});
+/* ======================================================================
+    OpenLayers/Protocol/WFS/v1.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Protocol/WFS.js
+ */
+
+/**
+ * Class: OpenLayers.Protocol.WFS.v1
+ * Abstract class for for v1.0.0 and v1.1.0 protocol.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Protocol>
+ */
+OpenLayers.Protocol.WFS.v1 = OpenLayers.Class(OpenLayers.Protocol, {
+    
+    /**
+     * Property: version
+     * {String} WFS version number.
+     */
+    version: null,
+    
+    /**
+     * Property: srsName
+     * {String} Name of spatial reference system.  Default is "EPSG:4326".
+     */
+    srsName: "EPSG:4326",
+    
+    /**
+     * Property: featureType
+     * {String} Local feature typeName.
+     */
+    featureType: null,
+    
+    /**
+     * Property: featureNS
+     * {String} Feature namespace.
+     */
+    featureNS: null,
+    
+    /**
+     * Property: geometryName
+     * {String} Name of the geometry attribute for features.  Default is
+     *     "the_geom" for WFS <version> 1.0, and null for higher versions.
+     */
+    geometryName: "the_geom",
+
+    /**
+     * Property: maxFeatures
+     * {Integer} Optional maximum number of features to retrieve.
+     */
+    
+    /**
+     * Property: schema
+     * {String} Optional schema location that will be included in the
+     *     schemaLocation attribute value.  Note that the feature type schema
+     *     is required for a strict XML validator (on transactions with an
+     *     insert for example), but is *not* required by the WFS specification
+     *     (since the server is supposed to know about feature type schemas).
+     */
+    schema: null,
+
+    /**
+     * Property: featurePrefix
+     * {String} Namespace alias for feature type.  Default is "feature".
+     */
+    featurePrefix: "feature",
+    
+    /**
+     * Property: formatOptions
+     * {Object} Optional options for the format.  If a format is not provided,
+     *     this property can be used to extend the default format options.
+     */
+    formatOptions: null,
+
+    /** 
+     * Property: readFormat 
+     * {<OpenLayers.Format>} For WFS requests it is possible to get a  
+     *     different output format than GML. In that case, we cannot parse  
+     *     the response with the default format (WFST) and we need a different 
+     *     format for reading. 
+     */ 
+    readFormat: null,
+    
+    /**
+     * Property: readOptions
+     * {Object} Optional object to pass to format's read.
+     */
+    readOptions: null,
+    
+    /**
+     * Constructor: OpenLayers.Protocol.WFS
+     * A class for giving layers WFS protocol.
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on the
+     *     instance.
+     *
+     * Valid options properties:
+     * url - {String} URL to send requests to (required).
+     * featureType - {String} Local (without prefix) feature typeName (required).
+     * featureNS - {String} Feature namespace (required, but can be autodetected
+     *     during the first query if GML is used as readFormat and
+     *     featurePrefix is provided and matches the prefix used by the server
+     *     for this featureType).
+     * featurePrefix - {String} Feature namespace alias (optional - only used
+     *     for writing if featureNS is provided).  Default is 'feature'.
+     * geometryName - {String} Name of geometry attribute.  The default is
+     *     'the_geom' for WFS <version> 1.0, and null for higher versions. If
+     *     null, it will be set to the name of the first geometry found in the
+     *     first read operation.
+     * multi - {Boolean} If set to true, geometries will be casted to Multi
+     *     geometries before they are written in a transaction. No casting will
+     *     be done when reading features.
+     */
+    initialize: function(options) {
+        OpenLayers.Protocol.prototype.initialize.apply(this, [options]);
+        if(!options.format) {
+            this.format = OpenLayers.Format.WFST(OpenLayers.Util.extend({
+                version: this.version,
+                featureType: this.featureType,
+                featureNS: this.featureNS,
+                featurePrefix: this.featurePrefix,
+                geometryName: this.geometryName,
+                srsName: this.srsName,
+                schema: this.schema
+            }, this.formatOptions));
+        }
+        if (!options.geometryName && parseFloat(this.format.version) > 1.0) {
+            this.setGeometryName(null);
+        }
+    },
+    
+    /**
+     * APIMethod: destroy
+     * Clean up the protocol.
+     */
+    destroy: function() {
+        if(this.options && !this.options.format) {
+            this.format.destroy();
+        }
+        this.format = null;
+        OpenLayers.Protocol.prototype.destroy.apply(this);
+    },
+
+    /**
+     * APIMethod: read
+     * Construct a request for reading new features.  Since WFS splits the
+     *     basic CRUD operations into GetFeature requests (for read) and
+     *     Transactions (for all others), this method does not make use of the
+     *     format's read method (that is only about reading transaction
+     *     responses).
+     *
+     * Parameters:
+     * options - {Object} Options for the read operation, in addition to the
+     *     options set on the instance (options set here will take precedence).
+     *
+     * To use a configured protocol to get e.g. a WFS hit count, applications
+     * could do the following:
+     *
+     * (code)
+     * protocol.read({
+     *     readOptions: {output: "object"},
+     *     resultType: "hits",
+     *     maxFeatures: null,
+     *     callback: function(resp) {
+     *         // process resp.numberOfFeatures here
+     *     }
+     * });
+     * (end)
+     *
+     * To use a configured protocol to use WFS paging (if supported by the
+     * server), applications could do the following:
+     *
+     * (code)
+     * protocol.read({
+     *     startIndex: 0,
+     *     count: 50
+     * });
+     * (end)
+     *
+     * To limit the attributes returned by the GetFeature request, applications
+     * can use the propertyNames option to specify the properties to include in
+     * the response:
+     *
+     * (code)
+     * protocol.read({
+     *     propertyNames: ["DURATION", "INTENSITY"]
+     * });
+     * (end)
+     */
+    read: function(options) {
+        OpenLayers.Protocol.prototype.read.apply(this, arguments);
+        options = OpenLayers.Util.extend({}, options);
+        OpenLayers.Util.applyDefaults(options, this.options || {});
+        var response = new OpenLayers.Protocol.Response({requestType: "read"});
+        
+        var data = OpenLayers.Format.XML.prototype.write.apply(
+            this.format, [this.format.writeNode("wfs:GetFeature", options)]
+        );
+
+        response.priv = OpenLayers.Request.POST({
+            url: options.url,
+            callback: this.createCallback(this.handleRead, response, options),
+            params: options.params,
+            headers: options.headers,
+            data: data
+        });
+
+        return response;
+    },
+
+    /**
+     * APIMethod: setFeatureType
+     * Change the feature type on the fly.
+     *
+     * Parameters:
+     * featureType - {String} Local (without prefix) feature typeName.
+     */
+    setFeatureType: function(featureType) {
+        this.featureType = featureType;
+        this.format.featureType = featureType;
+    },
+ 
+    /**
+     * APIMethod: setGeometryName
+     * Sets the geometryName option after instantiation.
+     *
+     * Parameters:
+     * geometryName - {String} Name of geometry attribute.
+     */
+    setGeometryName: function(geometryName) {
+        this.geometryName = geometryName;
+        this.format.geometryName = geometryName;
+    },
+    
+    /**
+     * Method: handleRead
+     * Deal with response from the read request.
+     *
+     * Parameters:
+     * response - {<OpenLayers.Protocol.Response>} The response object to pass
+     *     to the user callback.
+     * options - {Object} The user options passed to the read call.
+     */
+    handleRead: function(response, options) {
+        options = OpenLayers.Util.extend({}, options);
+        OpenLayers.Util.applyDefaults(options, this.options);
+
+        if(options.callback) {
+            var request = response.priv;
+            if(request.status >= 200 && request.status < 300) {
+                // success
+                var result = this.parseResponse(request, options.readOptions);
+                if (result && result.success !== false) { 
+                    if (options.readOptions && options.readOptions.output == "object") {
+                        OpenLayers.Util.extend(response, result);
+                    } else {
+                        response.features = result;
+                    }
+                    response.code = OpenLayers.Protocol.Response.SUCCESS;
+                } else {
+                    // failure (service exception)
+                    response.code = OpenLayers.Protocol.Response.FAILURE;
+                    response.error = result;
+                }
+            } else {
+                // failure
+                response.code = OpenLayers.Protocol.Response.FAILURE;
+            }
+            options.callback.call(options.scope, response);
+        }
+    },
+
+    /**
+     * Method: parseResponse
+     * Read HTTP response body and return features
+     *
+     * Parameters:
+     * request - {XMLHttpRequest} The request object
+     * options - {Object} Optional object to pass to format's read
+     *
+     * Returns:
+     * {Object} or {Array({<OpenLayers.Feature.Vector>})} or
+     *     {<OpenLayers.Feature.Vector>} 
+     * An object with a features property, an array of features or a single 
+     * feature.
+     */
+    parseResponse: function(request, options) {
+        var doc = request.responseXML;
+        if(!doc || !doc.documentElement) {
+            doc = request.responseText;
+        }
+        if(!doc || doc.length <= 0) {
+            return null;
+        }
+        var result = (this.readFormat !== null) ? this.readFormat.read(doc) : 
+            this.format.read(doc, options);
+        if (!this.featureNS) {
+            var format = this.readFormat || this.format;
+            this.featureNS = format.featureNS;
+            // no need to auto-configure again on subsequent reads
+            format.autoConfig = false;
+            if (!this.geometryName) {
+                this.setGeometryName(format.geometryName);
+            }
+        }
+        return result;
+    },
+
+    /**
+     * Method: commit
+     * Given a list of feature, assemble a batch request for update, create,
+     *     and delete transactions.  A commit call on the prototype amounts
+     *     to writing a WFS transaction - so the write method on the format
+     *     is used.
+     *
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>)}
+     * options - {Object}
+     *
+     * Valid options properties:
+     * nativeElements - {Array({Object})} Array of objects with information for writing
+     * out <Native> elements, these objects have vendorId, safeToIgnore and
+     * value properties. The <Native> element is intended to allow access to 
+     * vendor specific capabilities of any particular web feature server or 
+     * datastore.
+     *
+     * Returns:
+     * {<OpenLayers.Protocol.Response>} A response object with a features
+     *     property containing any insertIds and a priv property referencing
+     *     the XMLHttpRequest object.
+     */
+    commit: function(features, options) {
+
+        options = OpenLayers.Util.extend({}, options);
+        OpenLayers.Util.applyDefaults(options, this.options);
+        
+        var response = new OpenLayers.Protocol.Response({
+            requestType: "commit",
+            reqFeatures: features
+        });
+        response.priv = OpenLayers.Request.POST({
+            url: options.url,
+            headers: options.headers,
+            data: this.format.write(features, options),
+            callback: this.createCallback(this.handleCommit, response, options)
+        });
+        
+        return response;
+    },
+    
+    /**
+     * Method: handleCommit
+     * Called when the commit request returns.
+     * 
+     * Parameters:
+     * response - {<OpenLayers.Protocol.Response>} The response object to pass
+     *     to the user callback.
+     * options - {Object} The user options passed to the commit call.
+     */
+    handleCommit: function(response, options) {
+        if(options.callback) {
+            var request = response.priv;
+
+            // ensure that we have an xml doc
+            var data = request.responseXML;
+            if(!data || !data.documentElement) {
+                data = request.responseText;
+            }
+            
+            var obj = this.format.read(data) || {};
+            
+            response.insertIds = obj.insertIds || [];
+            if (obj.success) {
+                response.code = OpenLayers.Protocol.Response.SUCCESS;
+            } else {
+                response.code = OpenLayers.Protocol.Response.FAILURE;
+                response.error = obj;
+            }
+            options.callback.call(options.scope, response);
+        }
+    },
+    
+    /**
+     * Method: filterDelete
+     * Send a request that deletes all features by their filter.
+     * 
+     * Parameters:
+     * filter - {<OpenLayers.Filter>} filter
+     */
+    filterDelete: function(filter, options) {
+        options = OpenLayers.Util.extend({}, options);
+        OpenLayers.Util.applyDefaults(options, this.options);    
+        
+        var response = new OpenLayers.Protocol.Response({
+            requestType: "commit"
+        });    
+        
+        var root = this.format.createElementNSPlus("wfs:Transaction", {
+            attributes: {
+                service: "WFS",
+                version: this.version
+            }
+        });
+        
+        var deleteNode = this.format.createElementNSPlus("wfs:Delete", {
+            attributes: {
+                typeName: (options.featureNS ? this.featurePrefix + ":" : "") +
+                    options.featureType
+            }
+        });       
+        
+        if(options.featureNS) {
+            deleteNode.setAttribute("xmlns:" + this.featurePrefix, options.featureNS);
+        }
+        var filterNode = this.format.writeNode("ogc:Filter", filter);
+        
+        deleteNode.appendChild(filterNode);
+        
+        root.appendChild(deleteNode);
+        
+        var data = OpenLayers.Format.XML.prototype.write.apply(
+            this.format, [root]
+        );
+        
+        return OpenLayers.Request.POST({
+            url: this.url,
+            callback : options.callback || function(){},
+            data: data
+        });   
+        
+    },
+
+    /**
+     * Method: abort
+     * Abort an ongoing request, the response object passed to
+     * this method must come from this protocol (as a result
+     * of a read, or commit operation).
+     *
+     * Parameters:
+     * response - {<OpenLayers.Protocol.Response>}
+     */
+    abort: function(response) {
+        if (response) {
+            response.priv.abort();
+        }
+    },
+  
+    CLASS_NAME: "OpenLayers.Protocol.WFS.v1" 
+});
+/* ======================================================================
+    OpenLayers/Handler/Feature.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Handler.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.Feature 
+ * Handler to respond to mouse events related to a drawn feature.  Callbacks
+ *     with the following keys will be notified of the following events
+ *     associated with features: click, clickout, over, out, and dblclick.
+ *
+ * This handler stops event propagation for mousedown and mouseup if those
+ *     browser events target features that can be selected.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Handler>
+ */
+OpenLayers.Handler.Feature = OpenLayers.Class(OpenLayers.Handler, {
+
+    /**
+     * Property: EVENTMAP
+     * {Object} A object mapping the browser events to objects with callback
+     *     keys for in and out.
+     */
+    EVENTMAP: {
+        'click': {'in': 'click', 'out': 'clickout'},
+        'mousemove': {'in': 'over', 'out': 'out'},
+        'dblclick': {'in': 'dblclick', 'out': null},
+        'mousedown': {'in': null, 'out': null},
+        'mouseup': {'in': null, 'out': null},
+        'touchstart': {'in': 'click', 'out': 'clickout'}
+    },
+
+    /**
+     * Property: feature
+     * {<OpenLayers.Feature.Vector>} The last feature that was hovered.
+     */
+    feature: null,
+
+    /**
+     * Property: lastFeature
+     * {<OpenLayers.Feature.Vector>} The last feature that was handled.
+     */
+    lastFeature: null,
+
+    /**
+     * Property: down
+     * {<OpenLayers.Pixel>} The location of the last mousedown.
+     */
+    down: null,
+
+    /**
+     * Property: up
+     * {<OpenLayers.Pixel>} The location of the last mouseup.
+     */
+    up: null,
+    
+    /**
+     * Property: clickTolerance
+     * {Number} The number of pixels the mouse can move between mousedown
+     *     and mouseup for the event to still be considered a click.
+     *     Dragging the map should not trigger the click and clickout callbacks
+     *     unless the map is moved by less than this tolerance. Defaults to 4.
+     */
+    clickTolerance: 4,
+
+    /**
+     * Property: geometryTypes
+     * To restrict dragging to a limited set of geometry types, send a list
+     * of strings corresponding to the geometry class names.
+     * 
+     * @type Array(String)
+     */
+    geometryTypes: null,
+
+    /**
+     * Property: stopClick
+     * {Boolean} If stopClick is set to true, handled clicks do not
+     *      propagate to other click listeners. Otherwise, handled clicks
+     *      do propagate. Unhandled clicks always propagate, whatever the
+     *      value of stopClick. Defaults to true.
+     */
+    stopClick: true,
+
+    /**
+     * Property: stopDown
+     * {Boolean} If stopDown is set to true, handled mousedowns do not
+     *      propagate to other mousedown listeners. Otherwise, handled
+     *      mousedowns do propagate. Unhandled mousedowns always propagate,
+     *      whatever the value of stopDown. Defaults to true.
+     */
+    stopDown: true,
+
+    /**
+     * Property: stopUp
+     * {Boolean} If stopUp is set to true, handled mouseups do not
+     *      propagate to other mouseup listeners. Otherwise, handled mouseups
+     *      do propagate. Unhandled mouseups always propagate, whatever the
+     *      value of stopUp. Defaults to false.
+     */
+    stopUp: false,
+    
+    /**
+     * Constructor: OpenLayers.Handler.Feature
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>} 
+     * layer - {<OpenLayers.Layer.Vector>}
+     * callbacks - {Object} An object with a 'over' property whos value is
+     *     a function to be called when the mouse is over a feature. The 
+     *     callback should expect to recieve a single argument, the feature.
+     * options - {Object} 
+     */
+    initialize: function(control, layer, callbacks, options) {
+        OpenLayers.Handler.prototype.initialize.apply(this, [control, callbacks, options]);
+        this.layer = layer;
+    },
+
+    /**
+     * Method: touchstart
+     * Handle touchstart events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    touchstart: function(evt) {
+        this.startTouch(); 
+        return OpenLayers.Event.isMultiTouch(evt) ?
+                true : this.mousedown(evt);
+    },
+
+    /**
+     * Method: touchmove
+     * Handle touchmove events. We just prevent the browser default behavior,
+     *    for Android Webkit not to select text when moving the finger after
+     *    selecting a feature.
+     *
+     * Parameters:
+     * evt - {Event}
+     */
+    touchmove: function(evt) {
+        OpenLayers.Event.preventDefault(evt);
+    },
+
+    /**
+     * Method: mousedown
+     * Handle mouse down.  Stop propagation if a feature is targeted by this
+     *     event (stops map dragging during feature selection).
+     * 
+     * Parameters:
+     * evt - {Event} 
+     */
+    mousedown: function(evt) {
+        // Feature selection is only done with a left click. Other handlers may stop the
+        // propagation of left-click mousedown events but not right-click mousedown events.
+        // This mismatch causes problems when comparing the location of the down and up
+        // events in the click function so it is important ignore right-clicks.
+        if (OpenLayers.Event.isLeftClick(evt) || OpenLayers.Event.isSingleTouch(evt)) {
+            this.down = evt.xy;
+        }
+        return this.handle(evt) ? !this.stopDown : true;
+    },
+    
+    /**
+     * Method: mouseup
+     * Handle mouse up.  Stop propagation if a feature is targeted by this
+     *     event.
+     * 
+     * Parameters:
+     * evt - {Event} 
+     */
+    mouseup: function(evt) {
+        this.up = evt.xy;
+        return this.handle(evt) ? !this.stopUp : true;
+    },
+
+    /**
+     * Method: click
+     * Handle click.  Call the "click" callback if click on a feature,
+     *     or the "clickout" callback if click outside any feature.
+     * 
+     * Parameters:
+     * evt - {Event} 
+     *
+     * Returns:
+     * {Boolean}
+     */
+    click: function(evt) {
+        return this.handle(evt) ? !this.stopClick : true;
+    },
+        
+    /**
+     * Method: mousemove
+     * Handle mouse moves.  Call the "over" callback if moving in to a feature,
+     *     or the "out" callback if moving out of a feature.
+     * 
+     * Parameters:
+     * evt - {Event} 
+     *
+     * Returns:
+     * {Boolean}
+     */
+    mousemove: function(evt) {
+        if (!this.callbacks['over'] && !this.callbacks['out']) {
+            return true;
+        }     
+        this.handle(evt);
+        return true;
+    },
+    
+    /**
+     * Method: dblclick
+     * Handle dblclick.  Call the "dblclick" callback if dblclick on a feature.
+     *
+     * Parameters:
+     * evt - {Event} 
+     *
+     * Returns:
+     * {Boolean}
+     */
+    dblclick: function(evt) {
+        return !this.handle(evt);
+    },
+
+    /**
+     * Method: geometryTypeMatches
+     * Return true if the geometry type of the passed feature matches
+     *     one of the geometry types in the geometryTypes array.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Vector.Feature>}
+     *
+     * Returns:
+     * {Boolean}
+     */
+    geometryTypeMatches: function(feature) {
+        return this.geometryTypes == null ||
+            OpenLayers.Util.indexOf(this.geometryTypes,
+                                    feature.geometry.CLASS_NAME) > -1;
+    },
+
+    /**
+     * Method: handle
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} The event occurred over a relevant feature.
+     */
+    handle: function(evt) {
+        if(this.feature && !this.feature.layer) {
+            // feature has been destroyed
+            this.feature = null;
+        }
+        var type = evt.type;
+        var handled = false;
+        var previouslyIn = !!(this.feature); // previously in a feature
+        var click = (type == "click" || type == "dblclick" || type == "touchstart");
+        this.feature = this.layer.getFeatureFromEvent(evt);
+        if(this.feature && !this.feature.layer) {
+            // feature has been destroyed
+            this.feature = null;
+        }
+        if(this.lastFeature && !this.lastFeature.layer) {
+            // last feature has been destroyed
+            this.lastFeature = null;
+        }
+        if(this.feature) {
+            if(type === "touchstart") {
+                // stop the event to prevent Android Webkit from
+                // "flashing" the map div
+                OpenLayers.Event.preventDefault(evt);
+            }
+            var inNew = (this.feature != this.lastFeature);
+            if(this.geometryTypeMatches(this.feature)) {
+                // in to a feature
+                if(previouslyIn && inNew) {
+                    // out of last feature and in to another
+                    if(this.lastFeature) {
+                        this.triggerCallback(type, 'out', [this.lastFeature]);
+                    }
+                    this.triggerCallback(type, 'in', [this.feature]);
+                } else if(!previouslyIn || click) {
+                    // in feature for the first time
+                    this.triggerCallback(type, 'in', [this.feature]);
+                }
+                this.lastFeature = this.feature;
+                handled = true;
+            } else {
+                // not in to a feature
+                if(this.lastFeature && (previouslyIn && inNew || click)) {
+                    // out of last feature for the first time
+                    this.triggerCallback(type, 'out', [this.lastFeature]);
+                }
+                // next time the mouse goes in a feature whose geometry type
+                // doesn't match we don't want to call the 'out' callback
+                // again, so let's set this.feature to null so that
+                // previouslyIn will evaluate to false the next time
+                // we enter handle. Yes, a bit hackish...
+                this.feature = null;
+            }
+        } else if(this.lastFeature && (previouslyIn || click)) {
+            this.triggerCallback(type, 'out', [this.lastFeature]);
+        }
+        return handled;
+    },
+    
+    /**
+     * Method: triggerCallback
+     * Call the callback keyed in the event map with the supplied arguments.
+     *     For click and clickout, the <clickTolerance> is checked first.
+     *
+     * Parameters:
+     * type - {String}
+     */
+    triggerCallback: function(type, mode, args) {
+        var key = this.EVENTMAP[type][mode];
+        if(key) {
+            if(type == 'click' && this.up && this.down) {
+                // for click/clickout, only trigger callback if tolerance is met
+                var dpx = Math.sqrt(
+                    Math.pow(this.up.x - this.down.x, 2) +
+                    Math.pow(this.up.y - this.down.y, 2)
+                );
+                if(dpx <= this.clickTolerance) {
+                    this.callback(key, args);
+                }
+                // we're done with this set of events now: clear the cached
+                // positions so we can't trip over them later (this can occur
+                // if one of the up/down events gets eaten before it gets to us
+                // but we still get the click)
+                this.up = this.down = null;
+            } else {
+                this.callback(key, args);
+            }
+        }
+    },
+
+    /**
+     * Method: activate 
+     * Turn on the handler.  Returns false if the handler was already active.
+     *
+     * Returns:
+     * {Boolean}
+     */
+    activate: function() {
+        var activated = false;
+        if(OpenLayers.Handler.prototype.activate.apply(this, arguments)) {
+            this.moveLayerToTop();
+            this.map.events.on({
+                "removelayer": this.handleMapEvents,
+                "changelayer": this.handleMapEvents,
+                scope: this
+            });
+            activated = true;
+        }
+        return activated;
+    },
+    
+    /**
+     * Method: deactivate 
+     * Turn off the handler.  Returns false if the handler was already active.
+     *
+     * Returns: 
+     * {Boolean}
+     */
+    deactivate: function() {
+        var deactivated = false;
+        if(OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
+            this.moveLayerBack();
+            this.feature = null;
+            this.lastFeature = null;
+            this.down = null;
+            this.up = null;
+            this.map.events.un({
+                "removelayer": this.handleMapEvents,
+                "changelayer": this.handleMapEvents,
+                scope: this
+            });
+            deactivated = true;
+        }
+        return deactivated;
+    },
+    
+    /**
+     * Method: handleMapEvents
+     * 
+     * Parameters:
+     * evt - {Object}
+     */
+    handleMapEvents: function(evt) {
+        if (evt.type == "removelayer" || evt.property == "order") {
+            this.moveLayerToTop();
+        }
+    },
+    
+    /**
+     * Method: moveLayerToTop
+     * Moves the layer for this handler to the top, so mouse events can reach
+     * it.
+     */
+    moveLayerToTop: function() {
+        var index = Math.max(this.map.Z_INDEX_BASE['Feature'] - 1,
+            this.layer.getZIndex()) + 1;
+        this.layer.setZIndex(index);
+        
+    },
+    
+    /**
+     * Method: moveLayerBack
+     * Moves the layer back to the position determined by the map's layers
+     * array.
+     */
+    moveLayerBack: function() {
+        var index = this.layer.getZIndex() - 1;
+        if (index >= this.map.Z_INDEX_BASE['Feature']) {
+            this.layer.setZIndex(index);
+        } else {
+            this.map.setLayerZIndex(this.layer,
+                this.map.getLayerIndex(this.layer));
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.Feature"
+});
+/* ======================================================================
+    OpenLayers/StyleMap.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Style.js
+ * @requires OpenLayers/Feature/Vector.js
+ */
+ 
+/**
+ * Class: OpenLayers.StyleMap
+ */
+OpenLayers.StyleMap = OpenLayers.Class({
+    
+    /**
+     * Property: styles
+     * {Object} Hash of {<OpenLayers.Style>}, keyed by names of well known
+     * rendering intents (e.g. "default", "temporary", "select", "delete").
+     */
+    styles: null,
+    
+    /**
+     * Property: extendDefault
+     * {Boolean} if true, every render intent will extend the symbolizers
+     * specified for the "default" intent at rendering time. Otherwise, every
+     * rendering intent will be treated as a completely independent style.
+     */
+    extendDefault: true,
+    
+    /**
+     * Constructor: OpenLayers.StyleMap
+     * 
+     * Parameters:
+     * style   - {Object} Optional. Either a style hash, or a style object, or
+     *           a hash of style objects (style hashes) keyed by rendering
+     *           intent. If just one style hash or style object is passed,
+     *           this will be used for all known render intents (default,
+     *           select, temporary)
+     * options - {Object} optional hash of additional options for this
+     *           instance
+     */
+    initialize: function (style, options) {
+        this.styles = {
+            "default": new OpenLayers.Style(
+                OpenLayers.Feature.Vector.style["default"]),
+            "select": new OpenLayers.Style(
+                OpenLayers.Feature.Vector.style["select"]),
+            "temporary": new OpenLayers.Style(
+                OpenLayers.Feature.Vector.style["temporary"]),
+            "delete": new OpenLayers.Style(
+                OpenLayers.Feature.Vector.style["delete"])
+        };
+        
+        // take whatever the user passed as style parameter and convert it
+        // into parts of stylemap.
+        if(style instanceof OpenLayers.Style) {
+            // user passed a style object
+            this.styles["default"] = style;
+            this.styles["select"] = style;
+            this.styles["temporary"] = style;
+            this.styles["delete"] = style;
+        } else if(typeof style == "object") {
+            for(var key in style) {
+                if(style[key] instanceof OpenLayers.Style) {
+                    // user passed a hash of style objects
+                    this.styles[key] = style[key];
+                } else if(typeof style[key] == "object") {
+                    // user passsed a hash of style hashes
+                    this.styles[key] = new OpenLayers.Style(style[key]);
+                } else {
+                    // user passed a style hash (i.e. symbolizer)
+                    this.styles["default"] = new OpenLayers.Style(style);
+                    this.styles["select"] = new OpenLayers.Style(style);
+                    this.styles["temporary"] = new OpenLayers.Style(style);
+                    this.styles["delete"] = new OpenLayers.Style(style);
+                    break;
+                }
+            }
+        }
+        OpenLayers.Util.extend(this, options);
+    },
+
+    /**
+     * Method: destroy
+     */
+    destroy: function() {
+        for(var key in this.styles) {
+            this.styles[key].destroy();
+        }
+        this.styles = null;
+    },
+    
+    /**
+     * Method: createSymbolizer
+     * Creates the symbolizer for a feature for a render intent.
+     * 
+     * Parameters:
+     * feature - {<OpenLayers.Feature>} The feature to evaluate the rules
+     *           of the intended style against.
+     * intent  - {String} The intent determines the symbolizer that will be
+     *           used to draw the feature. Well known intents are "default"
+     *           (for just drawing the features), "select" (for selected
+     *           features) and "temporary" (for drawing features).
+     * 
+     * Returns:
+     * {Object} symbolizer hash
+     */
+    createSymbolizer: function(feature, intent) {
+        if(!feature) {
+            feature = new OpenLayers.Feature.Vector();
+        }
+        if(!this.styles[intent]) {
+            intent = "default";
+        }
+        feature.renderIntent = intent;
+        var defaultSymbolizer = {};
+        if(this.extendDefault && intent != "default") {
+            defaultSymbolizer = this.styles["default"].createSymbolizer(feature);
+        }
+        return OpenLayers.Util.extend(defaultSymbolizer,
+            this.styles[intent].createSymbolizer(feature));
+    },
+    
+    /**
+     * Method: addUniqueValueRules
+     * Convenience method to create comparison rules for unique values of a
+     * property. The rules will be added to the style object for a specified
+     * rendering intent. This method is a shortcut for creating something like
+     * the "unique value legends" familiar from well known desktop GIS systems
+     * 
+     * Parameters:
+     * renderIntent - {String} rendering intent to add the rules to
+     * property     - {String} values of feature attributes to create the
+     *                rules for
+     * symbolizers  - {Object} Hash of symbolizers, keyed by the desired
+     *                property values 
+     * context      - {Object} An optional object with properties that
+     *                symbolizers' property values should be evaluated
+     *                against. If no context is specified, feature.attributes
+     *                will be used
+     */
+    addUniqueValueRules: function(renderIntent, property, symbolizers, context) {
+        var rules = [];
+        for (var value in symbolizers) {
+            rules.push(new OpenLayers.Rule({
+                symbolizer: symbolizers[value],
+                context: context,
+                filter: new OpenLayers.Filter.Comparison({
+                    type: OpenLayers.Filter.Comparison.EQUAL_TO,
+                    property: property,
+                    value: value
+                })
+            }));
+        }
+        this.styles[renderIntent].addRules(rules);
+    },
+
+    CLASS_NAME: "OpenLayers.StyleMap"
+});
+/* ======================================================================
+    OpenLayers/Layer/Vector.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Layer.js
+ * @requires OpenLayers/Renderer.js
+ * @requires OpenLayers/StyleMap.js
+ * @requires OpenLayers/Feature/Vector.js
+ * @requires OpenLayers/Console.js
+ * @requires OpenLayers/Lang.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.Vector
+ * Instances of OpenLayers.Layer.Vector are used to render vector data from
+ *     a variety of sources. Create a new vector layer with the
+ *     <OpenLayers.Layer.Vector> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer>
+ */
+OpenLayers.Layer.Vector = OpenLayers.Class(OpenLayers.Layer, {
+
+    /**
+     * APIProperty: events
+     * {<OpenLayers.Events>}
+     *
+     * Register a listener for a particular event with the following syntax:
+     * (code)
+     * layer.events.register(type, obj, listener);
+     * (end)
+     *
+     * Listeners will be called with a reference to an event object.  The
+     *     properties of this event depends on exactly what happened.
+     *
+     * All event objects have at least the following properties:
+     * object - {Object} A reference to layer.events.object.
+     * element - {DOMElement} A reference to layer.events.element.
+     *
+     * Supported map event types (in addition to those from <OpenLayers.Layer.events>):
+     * beforefeatureadded - Triggered before a feature is added.  Listeners
+     *      will receive an object with a *feature* property referencing the
+     *      feature to be added.  To stop the feature from being added, a
+     *      listener should return false.
+     * beforefeaturesadded - Triggered before an array of features is added.
+     *      Listeners will receive an object with a *features* property
+     *      referencing the feature to be added. To stop the features from
+     *      being added, a listener should return false.
+     * featureadded - Triggered after a feature is added.  The event
+     *      object passed to listeners will have a *feature* property with a
+     *      reference to the added feature.
+     * featuresadded - Triggered after features are added.  The event
+     *      object passed to listeners will have a *features* property with a
+     *      reference to an array of added features.
+     * beforefeatureremoved - Triggered before a feature is removed. Listeners
+     *      will receive an object with a *feature* property referencing the
+     *      feature to be removed.
+     * beforefeaturesremoved - Triggered before multiple features are removed. 
+     *      Listeners will receive an object with a *features* property
+     *      referencing the features to be removed.
+     * featureremoved - Triggerd after a feature is removed. The event
+     *      object passed to listeners will have a *feature* property with a
+     *      reference to the removed feature.
+     * featuresremoved - Triggered after features are removed. The event
+     *      object passed to listeners will have a *features* property with a
+     *      reference to an array of removed features.
+     * beforefeatureselected - Triggered before a feature is selected.  Listeners
+     *      will receive an object with a *feature* property referencing the
+     *      feature to be selected. To stop the feature from being selectd, a
+     *      listener should return false.
+     * featureselected - Triggered after a feature is selected.  Listeners
+     *      will receive an object with a *feature* property referencing the
+     *      selected feature.
+     * featureunselected - Triggered after a feature is unselected.
+     *      Listeners will receive an object with a *feature* property
+     *      referencing the unselected feature.
+     * beforefeaturemodified - Triggered when a feature is selected to 
+     *      be modified.  Listeners will receive an object with a *feature* 
+     *      property referencing the selected feature.
+     * featuremodified - Triggered when a feature has been modified.
+     *      Listeners will receive an object with a *feature* property referencing 
+     *      the modified feature.
+     * afterfeaturemodified - Triggered when a feature is finished being modified.
+     *      Listeners will receive an object with a *feature* property referencing 
+     *      the modified feature.
+     * vertexmodified - Triggered when a vertex within any feature geometry
+     *      has been modified.  Listeners will receive an object with a
+     *      *feature* property referencing the modified feature, a *vertex*
+     *      property referencing the vertex modified (always a point geometry),
+     *      and a *pixel* property referencing the pixel location of the
+     *      modification.
+     * vertexremoved - Triggered when a vertex within any feature geometry
+     *      has been deleted.  Listeners will receive an object with a
+     *      *feature* property referencing the modified feature, a *vertex*
+     *      property referencing the vertex modified (always a point geometry),
+     *      and a *pixel* property referencing the pixel location of the
+     *      removal.
+     * sketchstarted - Triggered when a feature sketch bound for this layer
+     *      is started.  Listeners will receive an object with a *feature*
+     *      property referencing the new sketch feature and a *vertex* property
+     *      referencing the creation point.
+     * sketchmodified - Triggered when a feature sketch bound for this layer
+     *      is modified.  Listeners will receive an object with a *vertex*
+     *      property referencing the modified vertex and a *feature* property
+     *      referencing the sketch feature.
+     * sketchcomplete - Triggered when a feature sketch bound for this layer
+     *      is complete.  Listeners will receive an object with a *feature*
+     *      property referencing the sketch feature.  By returning false, a
+     *      listener can stop the sketch feature from being added to the layer.
+     * refresh - Triggered when something wants a strategy to ask the protocol
+     *      for a new set of features.
+     */
+
+    /**
+     * APIProperty: isBaseLayer
+     * {Boolean} The layer is a base layer.  Default is false.  Set this property
+     * in the layer options.
+     */
+    isBaseLayer: false,
+
+    /** 
+     * APIProperty: isFixed
+     * {Boolean} Whether the layer remains in one place while dragging the
+     * map. Note that setting this to true will move the layer to the bottom
+     * of the layer stack.
+     */
+    isFixed: false,
+
+    /** 
+     * APIProperty: features
+     * {Array(<OpenLayers.Feature.Vector>)} 
+     */
+    features: null,
+    
+    /** 
+     * Property: filter
+     * {<OpenLayers.Filter>} The filter set in this layer,
+     *     a strategy launching read requests can combined
+     *     this filter with its own filter.
+     */
+    filter: null,
+    
+    /** 
+     * Property: selectedFeatures
+     * {Array(<OpenLayers.Feature.Vector>)} 
+     */
+    selectedFeatures: null,
+    
+    /**
+     * Property: unrenderedFeatures
+     * {Object} hash of features, keyed by feature.id, that the renderer
+     *     failed to draw
+     */
+    unrenderedFeatures: null,
+
+    /**
+     * APIProperty: reportError
+     * {Boolean} report friendly error message when loading of renderer
+     * fails.
+     */
+    reportError: true, 
+
+    /** 
+     * APIProperty: style
+     * {Object} Default style for the layer
+     */
+    style: null,
+    
+    /**
+     * Property: styleMap
+     * {<OpenLayers.StyleMap>}
+     */
+    styleMap: null,
+    
+    /**
+     * Property: strategies
+     * {Array(<OpenLayers.Strategy>})} Optional list of strategies for the layer.
+     */
+    strategies: null,
+    
+    /**
+     * Property: protocol
+     * {<OpenLayers.Protocol>} Optional protocol for the layer.
+     */
+    protocol: null,
+    
+    /**
+     * Property: renderers
+     * {Array(String)} List of supported Renderer classes. Add to this list to
+     * add support for additional renderers. This list is ordered:
+     * the first renderer which returns true for the  'supported()'
+     * method will be used, if not defined in the 'renderer' option.
+     */
+    renderers: ['SVG', 'VML', 'Canvas'],
+    
+    /** 
+     * Property: renderer
+     * {<OpenLayers.Renderer>}
+     */
+    renderer: null,
+    
+    /**
+     * APIProperty: rendererOptions
+     * {Object} Options for the renderer. See {<OpenLayers.Renderer>} for
+     *     supported options.
+     */
+    rendererOptions: null,
+    
+    /** 
+     * APIProperty: geometryType
+     * {String} geometryType allows you to limit the types of geometries this
+     * layer supports. This should be set to something like
+     * "OpenLayers.Geometry.Point" to limit types.
+     */
+    geometryType: null,
+
+    /** 
+     * Property: drawn
+     * {Boolean} Whether the Vector Layer features have been drawn yet.
+     */
+    drawn: false,
+    
+    /** 
+     * APIProperty: ratio
+     * {Float} This specifies the ratio of the size of the visiblity of the Vector Layer features to the size of the map.
+     */   
+    ratio: 1,
+
+    /**
+     * Constructor: OpenLayers.Layer.Vector
+     * Create a new vector layer
+     *
+     * Parameters:
+     * name - {String} A name for the layer
+     * options - {Object} Optional object with non-default properties to set on
+     *           the layer.
+     *
+     * Returns:
+     * {<OpenLayers.Layer.Vector>} A new vector layer
+     */
+    initialize: function(name, options) {
+        OpenLayers.Layer.prototype.initialize.apply(this, arguments);
+
+        // allow user-set renderer, otherwise assign one
+        if (!this.renderer || !this.renderer.supported()) {  
+            this.assignRenderer();
+        }
+
+        // if no valid renderer found, display error
+        if (!this.renderer || !this.renderer.supported()) {
+            this.renderer = null;
+            this.displayError();
+        } 
+
+        if (!this.styleMap) {
+            this.styleMap = new OpenLayers.StyleMap();
+        }
+
+        this.features = [];
+        this.selectedFeatures = [];
+        this.unrenderedFeatures = {};
+        
+        // Allow for custom layer behavior
+        if(this.strategies){
+            for(var i=0, len=this.strategies.length; i<len; i++) {
+                this.strategies[i].setLayer(this);
+            }
+        }
+
+    },
+
+    /**
+     * APIMethod: destroy
+     * Destroy this layer
+     */
+    destroy: function() {
+        if (this.strategies) {
+            var strategy, i, len;
+            for(i=0, len=this.strategies.length; i<len; i++) {
+                strategy = this.strategies[i];
+                if(strategy.autoDestroy) {
+                    strategy.destroy();
+                }
+            }
+            this.strategies = null;
+        }
+        if (this.protocol) {
+            if(this.protocol.autoDestroy) {
+                this.protocol.destroy();
+            }
+            this.protocol = null;
+        }
+        this.destroyFeatures();
+        this.features = null;
+        this.selectedFeatures = null;
+        this.unrenderedFeatures = null;
+        if (this.renderer) {
+            this.renderer.destroy();
+        }
+        this.renderer = null;
+        this.geometryType = null;
+        this.drawn = null;
+        OpenLayers.Layer.prototype.destroy.apply(this, arguments);  
+    },
+
+    /**
+     * Method: clone
+     * Create a clone of this layer.
+     * 
+     * Note: Features of the layer are also cloned.
+     *
+     * Returns:
+     * {<OpenLayers.Layer.Vector>} An exact clone of this layer
+     */
+    clone: function (obj) {
+        
+        if (obj == null) {
+            obj = new OpenLayers.Layer.Vector(this.name, this.getOptions());
+        }
+
+        //get all additions from superclasses
+        obj = OpenLayers.Layer.prototype.clone.apply(this, [obj]);
+
+        // copy/set any non-init, non-simple values here
+        var features = this.features;
+        var len = features.length;
+        var clonedFeatures = new Array(len);
+        for(var i=0; i<len; ++i) {
+            clonedFeatures[i] = features[i].clone();
+        }
+        obj.features = clonedFeatures;
+
+        return obj;
+    },    
+    
+    /**
+     * Method: refresh
+     * Ask the layer to request features again and redraw them.  Triggers
+     *     the refresh event if the layer is in range and visible.
+     *
+     * Parameters:
+     * obj - {Object} Optional object with properties for any listener of
+     *     the refresh event.
+     */
+    refresh: function(obj) {
+        if(this.calculateInRange() && this.visibility) {
+            this.events.triggerEvent("refresh", obj);
+        }
+    },
+
+    /** 
+     * Method: assignRenderer
+     * Iterates through the available renderer implementations and selects 
+     * and assigns the first one whose "supported()" function returns true.
+     */    
+    assignRenderer: function()  {
+        for (var i=0, len=this.renderers.length; i<len; i++) {
+            var rendererClass = this.renderers[i];
+            var renderer = (typeof rendererClass == "function") ?
+                rendererClass :
+                OpenLayers.Renderer[rendererClass];
+            if (renderer && renderer.prototype.supported()) {
+                this.renderer = new renderer(this.div, this.rendererOptions);
+                break;
+            }  
+        }  
+    },
+
+    /** 
+     * Method: displayError 
+     * Let the user know their browser isn't supported.
+     */
+    displayError: function() {
+        if (this.reportError) {
+            OpenLayers.Console.userError(OpenLayers.i18n("browserNotSupported", 
+                                     {renderers: this. renderers.join('\n')}));
+        }    
+    },
+
+    /** 
+     * Method: setMap
+     * The layer has been added to the map. 
+     * 
+     * If there is no renderer set, the layer can't be used. Remove it.
+     * Otherwise, give the renderer a reference to the map and set its size.
+     * 
+     * Parameters:
+     * map - {<OpenLayers.Map>} 
+     */
+    setMap: function(map) {        
+        OpenLayers.Layer.prototype.setMap.apply(this, arguments);
+
+        if (!this.renderer) {
+            this.map.removeLayer(this);
+        } else {
+            this.renderer.map = this.map;
+
+            var newSize = this.map.getSize();
+            newSize.w = newSize.w * this.ratio;
+            newSize.h = newSize.h * this.ratio;
+            this.renderer.setSize(newSize);
+        }
+    },
+
+    /**
+     * Method: afterAdd
+     * Called at the end of the map.addLayer sequence.  At this point, the map
+     *     will have a base layer.  Any autoActivate strategies will be
+     *     activated here.
+     */
+    afterAdd: function() {
+        if(this.strategies) {
+            var strategy, i, len;
+            for(i=0, len=this.strategies.length; i<len; i++) {
+                strategy = this.strategies[i];
+                if(strategy.autoActivate) {
+                    strategy.activate();
+                }
+            }
+        }
+    },
+
+    /**
+     * Method: removeMap
+     * The layer has been removed from the map.
+     *
+     * Parameters:
+     * map - {<OpenLayers.Map>}
+     */
+    removeMap: function(map) {
+        this.drawn = false;
+        if(this.strategies) {
+            var strategy, i, len;
+            for(i=0, len=this.strategies.length; i<len; i++) {
+                strategy = this.strategies[i];
+                if(strategy.autoActivate) {
+                    strategy.deactivate();
+                }
+            }
+        }
+    },
+    
+    /**
+     * Method: onMapResize
+     * Notify the renderer of the change in size. 
+     * 
+     */
+    onMapResize: function() {
+        OpenLayers.Layer.prototype.onMapResize.apply(this, arguments);
+        
+        var newSize = this.map.getSize();
+        newSize.w = newSize.w * this.ratio;
+        newSize.h = newSize.h * this.ratio;
+        this.renderer.setSize(newSize);
+    },
+
+    /**
+     * Method: moveTo
+     *  Reset the vector layer's div so that it once again is lined up with 
+     *   the map. Notify the renderer of the change of extent, and in the
+     *   case of a change of zoom level (resolution), have the 
+     *   renderer redraw features.
+     * 
+     *  If the layer has not yet been drawn, cycle through the layer's 
+     *   features and draw each one.
+     * 
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>} 
+     * zoomChanged - {Boolean} 
+     * dragging - {Boolean} 
+     */
+    moveTo: function(bounds, zoomChanged, dragging) {
+        OpenLayers.Layer.prototype.moveTo.apply(this, arguments);
+        
+        var coordSysUnchanged = true;
+        if (!dragging) {
+            this.renderer.root.style.visibility = 'hidden';
+
+            var viewSize = this.map.getSize(),
+                viewWidth = viewSize.w,
+                viewHeight = viewSize.h,
+                offsetLeft = (viewWidth / 2 * this.ratio) - viewWidth / 2,
+                offsetTop = (viewHeight / 2 * this.ratio) - viewHeight / 2;
+            offsetLeft += this.map.layerContainerOriginPx.x;
+            offsetLeft = -Math.round(offsetLeft);
+            offsetTop += this.map.layerContainerOriginPx.y;
+            offsetTop = -Math.round(offsetTop);
+
+            this.div.style.left = offsetLeft + 'px';
+            this.div.style.top = offsetTop + 'px';
+
+            var extent = this.map.getExtent().scale(this.ratio);
+            coordSysUnchanged = this.renderer.setExtent(extent, zoomChanged);
+
+            this.renderer.root.style.visibility = 'visible';
+
+            // Force a reflow on gecko based browsers to prevent jump/flicker.
+            // This seems to happen on only certain configurations; it was originally
+            // noticed in FF 2.0 and Linux.
+            if (OpenLayers.IS_GECKO === true) {
+                this.div.scrollLeft = this.div.scrollLeft;
+            }
+            
+            if (!zoomChanged && coordSysUnchanged) {
+                for (var i in this.unrenderedFeatures) {
+                    var feature = this.unrenderedFeatures[i];
+                    this.drawFeature(feature);
+                }
+            }
+        }
+        if (!this.drawn || zoomChanged || !coordSysUnchanged) {
+            this.drawn = true;
+            var feature;
+            for(var i=0, len=this.features.length; i<len; i++) {
+                this.renderer.locked = (i !== (len - 1));
+                feature = this.features[i];
+                this.drawFeature(feature);
+            }
+        }    
+    },
+    
+    /** 
+     * APIMethod: display
+     * Hide or show the Layer
+     * 
+     * Parameters:
+     * display - {Boolean}
+     */
+    display: function(display) {
+        OpenLayers.Layer.prototype.display.apply(this, arguments);
+        // we need to set the display style of the root in case it is attached
+        // to a foreign layer
+        var currentDisplay = this.div.style.display;
+        if(currentDisplay != this.renderer.root.style.display) {
+            this.renderer.root.style.display = currentDisplay;
+        }
+    },
+
+    /**
+     * APIMethod: addFeatures
+     * Add Features to the layer.
+     *
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>)} 
+     * options - {Object}
+     */
+    addFeatures: function(features, options) {
+        if (!(OpenLayers.Util.isArray(features))) {
+            features = [features];
+        }
+        
+        var notify = !options || !options.silent;
+        if(notify) {
+            var event = {features: features};
+            var ret = this.events.triggerEvent("beforefeaturesadded", event);
+            if(ret === false) {
+                return;
+            }
+            features = event.features;
+        }
+        
+        // Track successfully added features for featuresadded event, since
+        // beforefeatureadded can veto single features.
+        var featuresAdded = [];
+        for (var i=0, len=features.length; i<len; i++) {
+            if (i != (features.length - 1)) {
+                this.renderer.locked = true;
+            } else {
+                this.renderer.locked = false;
+            }    
+            var feature = features[i];
+            
+            if (this.geometryType &&
+              !(feature.geometry instanceof this.geometryType)) {
+                throw new TypeError('addFeatures: component should be an ' +
+                                    this.geometryType.prototype.CLASS_NAME);
+              }
+
+            //give feature reference to its layer
+            feature.layer = this;
+
+            if (!feature.style && this.style) {
+                feature.style = OpenLayers.Util.extend({}, this.style);
+            }
+
+            if (notify) {
+                if(this.events.triggerEvent("beforefeatureadded",
+                                            {feature: feature}) === false) {
+                    continue;
+                }
+                this.preFeatureInsert(feature);
+            }
+
+            featuresAdded.push(feature);
+            this.features.push(feature);
+            this.drawFeature(feature);
+            
+            if (notify) {
+                this.events.triggerEvent("featureadded", {
+                    feature: feature
+                });
+                this.onFeatureInsert(feature);
+            }
+        }
+        
+        if(notify) {
+            this.events.triggerEvent("featuresadded", {features: featuresAdded});
+        }
+    },
+
+
+    /**
+     * APIMethod: removeFeatures
+     * Remove features from the layer.  This erases any drawn features and
+     *     removes them from the layer's control.  The beforefeatureremoved
+     *     and featureremoved events will be triggered for each feature.  The
+     *     featuresremoved event will be triggered after all features have
+     *     been removed.  To supress event triggering, use the silent option.
+     * 
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>)} List of features to be
+     *     removed.
+     * options - {Object} Optional properties for changing behavior of the
+     *     removal.
+     *
+     * Valid options:
+     * silent - {Boolean} Supress event triggering.  Default is false.
+     */
+    removeFeatures: function(features, options) {
+        if(!features || features.length === 0) {
+            return;
+        }
+        if (features === this.features) {
+            return this.removeAllFeatures(options);
+        }
+        if (!(OpenLayers.Util.isArray(features))) {
+            features = [features];
+        }
+        if (features === this.selectedFeatures) {
+            features = features.slice();
+        }
+
+        var notify = !options || !options.silent;
+        
+        if (notify) {
+            this.events.triggerEvent(
+                "beforefeaturesremoved", {features: features}
+            );
+        }
+
+        for (var i = features.length - 1; i >= 0; i--) {
+            // We remain locked so long as we're not at 0
+            // and the 'next' feature has a geometry. We do the geometry check
+            // because if all the features after the current one are 'null', we
+            // won't call eraseGeometry, so we break the 'renderer functions
+            // will always be called with locked=false *last*' rule. The end result
+            // is a possible gratiutious unlocking to save a loop through the rest 
+            // of the list checking the remaining features every time. So long as
+            // null geoms are rare, this is probably okay.    
+            if (i != 0 && features[i-1].geometry) {
+                this.renderer.locked = true;
+            } else {
+                this.renderer.locked = false;
+            }
+    
+            var feature = features[i];
+            delete this.unrenderedFeatures[feature.id];
+
+            if (notify) {
+                this.events.triggerEvent("beforefeatureremoved", {
+                    feature: feature
+                });
+            }
+
+            this.features = OpenLayers.Util.removeItem(this.features, feature);
+            // feature has no layer at this point
+            feature.layer = null;
+
+            if (feature.geometry) {
+                this.renderer.eraseFeatures(feature);
+            }
+                    
+            //in the case that this feature is one of the selected features, 
+            // remove it from that array as well.
+            if (OpenLayers.Util.indexOf(this.selectedFeatures, feature) != -1){
+                OpenLayers.Util.removeItem(this.selectedFeatures, feature);
+            }
+
+            if (notify) {
+                this.events.triggerEvent("featureremoved", {
+                    feature: feature
+                });
+            }
+        }
+
+        if (notify) {
+            this.events.triggerEvent("featuresremoved", {features: features});
+        }
+    },
+    
+    /** 
+     * APIMethod: removeAllFeatures
+     * Remove all features from the layer.
+     *
+     * Parameters:
+     * options - {Object} Optional properties for changing behavior of the
+     *     removal.
+     *
+     * Valid options:
+     * silent - {Boolean} Supress event triggering.  Default is false.
+     */
+    removeAllFeatures: function(options) {
+        var notify = !options || !options.silent;
+        var features = this.features;
+        if (notify) {
+            this.events.triggerEvent(
+                "beforefeaturesremoved", {features: features}
+            );
+        }
+        var feature;
+        for (var i = features.length-1; i >= 0; i--) {
+            feature = features[i];
+            if (notify) {
+                this.events.triggerEvent("beforefeatureremoved", {
+                    feature: feature
+                });
+            }
+            feature.layer = null;
+            if (notify) {
+                this.events.triggerEvent("featureremoved", {
+                    feature: feature
+                });
+            }
+        }
+        this.renderer.clear();
+        this.features = [];
+        this.unrenderedFeatures = {};
+        this.selectedFeatures = [];
+        if (notify) {
+            this.events.triggerEvent("featuresremoved", {features: features});
+        }
+    },
+
+    /**
+     * APIMethod: destroyFeatures
+     * Erase and destroy features on the layer.
+     *
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>)} An optional array of
+     *     features to destroy.  If not supplied, all features on the layer
+     *     will be destroyed.
+     * options - {Object}
+     */
+    destroyFeatures: function(features, options) {
+        var all = (features == undefined); // evaluates to true if
+                                           // features is null
+        if(all) {
+            features = this.features;
+        }
+        if(features) {
+            this.removeFeatures(features, options);
+            for(var i=features.length-1; i>=0; i--) {
+                features[i].destroy();
+            }
+        }
+    },
+
+    /**
+     * APIMethod: drawFeature
+     * Draw (or redraw) a feature on the layer.  If the optional style argument
+     * is included, this style will be used.  If no style is included, the
+     * feature's style will be used.  If the feature doesn't have a style,
+     * the layer's style will be used.
+     * 
+     * This function is not designed to be used when adding features to 
+     * the layer (use addFeatures instead). It is meant to be used when
+     * the style of a feature has changed, or in some other way needs to 
+     * visually updated *after* it has already been added to a layer. You
+     * must add the feature to the layer for most layer-related events to 
+     * happen.
+     *
+     * Parameters: 
+     * feature - {<OpenLayers.Feature.Vector>} 
+     * style - {String | Object} Named render intent or full symbolizer object.
+     */
+    drawFeature: function(feature, style) {
+        // don't try to draw the feature with the renderer if the layer is not 
+        // drawn itself
+        if (!this.drawn) {
+            return;
+        }
+        if (typeof style != "object") {
+            if(!style && feature.state === OpenLayers.State.DELETE) {
+                style = "delete";
+            }
+            var renderIntent = style || feature.renderIntent;
+            style = feature.style || this.style;
+            if (!style) {
+                style = this.styleMap.createSymbolizer(feature, renderIntent);
+            }
+        }
+        
+        var drawn = this.renderer.drawFeature(feature, style);
+        //TODO remove the check for null when we get rid of Renderer.SVG
+        if (drawn === false || drawn === null) {
+            this.unrenderedFeatures[feature.id] = feature;
+        } else {
+            delete this.unrenderedFeatures[feature.id];
+        }
+    },
+    
+    /**
+     * Method: eraseFeatures
+     * Erase features from the layer.
+     *
+     * Parameters:
+     * features - {Array(<OpenLayers.Feature.Vector>)} 
+     */
+    eraseFeatures: function(features) {
+        this.renderer.eraseFeatures(features);
+    },
+
+    /**
+     * Method: getFeatureFromEvent
+     * Given an event, return a feature if the event occurred over one.
+     * Otherwise, return null.
+     *
+     * Parameters:
+     * evt - {Event} 
+     *
+     * Returns:
+     * {<OpenLayers.Feature.Vector>} A feature if one was under the event.
+     */
+    getFeatureFromEvent: function(evt) {
+        if (!this.renderer) {
+            throw new Error('getFeatureFromEvent called on layer with no ' +
+                            'renderer. This usually means you destroyed a ' +
+                            'layer, but not some handler which is associated ' +
+                            'with it.');
+        }
+        var feature = null;
+        var featureId = this.renderer.getFeatureIdFromEvent(evt);
+        if (featureId) {
+            if (typeof featureId === "string") {
+                feature = this.getFeatureById(featureId);
+            } else {
+                feature = featureId;
+            }
+        }
+        return feature;
+    },
+
+    /**
+     * APIMethod: getFeatureBy
+     * Given a property value, return the feature if it exists in the features array
+     *
+     * Parameters:
+     * property - {String}
+     * value - {String}
+     *
+     * Returns:
+     * {<OpenLayers.Feature.Vector>} A feature corresponding to the given
+     * property value or null if there is no such feature.
+     */
+    getFeatureBy: function(property, value) {
+        //TBD - would it be more efficient to use a hash for this.features?
+        var feature = null;
+        for(var i=0, len=this.features.length; i<len; ++i) {
+            if(this.features[i][property] == value) {
+                feature = this.features[i];
+                break;
+            }
+        }
+        return feature;
+    },
+
+    /**
+     * APIMethod: getFeatureById
+     * Given a feature id, return the feature if it exists in the features array
+     *
+     * Parameters:
+     * featureId - {String}
+     *
+     * Returns:
+     * {<OpenLayers.Feature.Vector>} A feature corresponding to the given
+     * featureId or null if there is no such feature.
+     */
+    getFeatureById: function(featureId) {
+        return this.getFeatureBy('id', featureId);
+    },
+
+    /**
+     * APIMethod: getFeatureByFid
+     * Given a feature fid, return the feature if it exists in the features array
+     *
+     * Parameters:
+     * featureFid - {String}
+     *
+     * Returns:
+     * {<OpenLayers.Feature.Vector>} A feature corresponding to the given
+     * featureFid or null if there is no such feature.
+     */
+    getFeatureByFid: function(featureFid) {
+        return this.getFeatureBy('fid', featureFid);
+    },
+    
+    /**
+     * APIMethod: getFeaturesByAttribute
+     * Returns an array of features that have the given attribute key set to the
+     * given value. Comparison of attribute values takes care of datatypes, e.g.
+     * the string '1234' is not equal to the number 1234.
+     *
+     * Parameters:
+     * attrName - {String}
+     * attrValue - {Mixed}
+     *
+     * Returns:
+     * Array({<OpenLayers.Feature.Vector>}) An array of features that have the 
+     * passed named attribute set to the given value.
+     */
+    getFeaturesByAttribute: function(attrName, attrValue) {
+        var i,
+            feature,    
+            len = this.features.length,
+            foundFeatures = [];
+        for(i = 0; i < len; i++) {            
+            feature = this.features[i];
+            if(feature && feature.attributes) {
+                if (feature.attributes[attrName] === attrValue) {
+                    foundFeatures.push(feature);
+                }
+            }
+        }
+        return foundFeatures;
+    },
+
+    /**
+     * Unselect the selected features
+     * i.e. clears the featureSelection array
+     * change the style back
+    clearSelection: function() {
+
+       var vectorLayer = this.map.vectorLayer;
+        for (var i = 0; i < this.map.featureSelection.length; i++) {
+            var featureSelection = this.map.featureSelection[i];
+            vectorLayer.drawFeature(featureSelection, vectorLayer.style);
+        }
+        this.map.featureSelection = [];
+    },
+     */
+
+
+    /**
+     * APIMethod: onFeatureInsert
+     * method called after a feature is inserted.
+     * Does nothing by default. Override this if you
+     * need to do something on feature updates.
+     *
+     * Parameters: 
+     * feature - {<OpenLayers.Feature.Vector>} 
+     */
+    onFeatureInsert: function(feature) {
+    },
+    
+    /**
+     * APIMethod: preFeatureInsert
+     * method called before a feature is inserted.
+     * Does nothing by default. Override this if you
+     * need to do something when features are first added to the
+     * layer, but before they are drawn, such as adjust the style.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} 
+     */
+    preFeatureInsert: function(feature) {
+    },
+
+    /** 
+     * APIMethod: getDataExtent
+     * Calculates the max extent which includes all of the features.
+     * 
+     * Returns:
+     * {<OpenLayers.Bounds>} or null if the layer has no features with
+     * geometries.
+     */
+    getDataExtent: function () {
+        var maxExtent = null;
+        var features = this.features;
+        if(features && (features.length > 0)) {
+            var geometry = null;
+            for(var i=0, len=features.length; i<len; i++) {
+                geometry = features[i].geometry;
+                if (geometry) {
+                    if (maxExtent === null) {
+                        maxExtent = new OpenLayers.Bounds();
+                    }
+                    maxExtent.extend(geometry.getBounds());
+                }
+            }
+        }
+        return maxExtent;
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.Vector"
+});
+/* ======================================================================
+    OpenLayers/Layer/Vector/RootContainer.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Layer/Vector.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.Vector.RootContainer
+ * A special layer type to combine multiple vector layers inside a single
+ *     renderer root container. This class is not supposed to be instantiated
+ *     from user space, it is a helper class for controls that require event
+ *     processing for multiple vector layers.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Layer.Vector>
+ */
+OpenLayers.Layer.Vector.RootContainer = OpenLayers.Class(OpenLayers.Layer.Vector, {
+    
+    /**
+     * Property: displayInLayerSwitcher
+     * Set to false for this layer type
+     */
+    displayInLayerSwitcher: false,
+    
+    /**
+     * APIProperty: layers
+     * Layers that are attached to this container. Required config option.
+     */
+    layers: null,
+    
+    /**
+     * Constructor: OpenLayers.Layer.Vector.RootContainer
+     * Create a new root container for multiple vector layer. This constructor
+     * is not supposed to be used from user space, it is only to be used by
+     * controls that need feature selection across multiple vector layers.
+     *
+     * Parameters:
+     * name - {String} A name for the layer
+     * options - {Object} Optional object with non-default properties to set on
+     *           the layer.
+     * 
+     * Required options properties:
+     * layers - {Array(<OpenLayers.Layer.Vector>)} The layers managed by this
+     *     container
+     *
+     * Returns:
+     * {<OpenLayers.Layer.Vector.RootContainer>} A new vector layer root
+     *     container
+     */
+    
+    /**
+     * Method: display
+     */
+    display: function() {},
+    
+    /**
+     * Method: getFeatureFromEvent
+     * walk through the layers to find the feature returned by the event
+     * 
+     * Parameters:
+     * evt - {Object} event object with a feature property
+     * 
+     * Returns:
+     * {<OpenLayers.Feature.Vector>}
+     */
+    getFeatureFromEvent: function(evt) {
+        var layers = this.layers;
+        var feature;
+        for(var i=0; i<layers.length; i++) {
+            feature = layers[i].getFeatureFromEvent(evt);
+            if(feature) {
+                return feature;
+            }
+        }
+    },
+    
+    /**
+     * Method: setMap
+     * 
+     * Parameters:
+     * map - {<OpenLayers.Map>}
+     */
+    setMap: function(map) {
+        OpenLayers.Layer.Vector.prototype.setMap.apply(this, arguments);
+        this.collectRoots();
+        map.events.register("changelayer", this, this.handleChangeLayer);
+    },
+    
+    /**
+     * Method: removeMap
+     * 
+     * Parameters:
+     * map - {<OpenLayers.Map>}
+     */
+    removeMap: function(map) {
+        map.events.unregister("changelayer", this, this.handleChangeLayer);
+        this.resetRoots();
+        OpenLayers.Layer.Vector.prototype.removeMap.apply(this, arguments);
+    },
+    
+    /**
+     * Method: collectRoots
+     * Collects the root nodes of all layers this control is configured with
+     * and moveswien the nodes to this control's layer
+     */
+    collectRoots: function() {
+        var layer;
+        // walk through all map layers, because we want to keep the order
+        for(var i=0; i<this.map.layers.length; ++i) {
+            layer = this.map.layers[i];
+            if(OpenLayers.Util.indexOf(this.layers, layer) != -1) {
+                layer.renderer.moveRoot(this.renderer);
+            }
+        }
+    },
+    
+    /**
+     * Method: resetRoots
+     * Resets the root nodes back into the layers they belong to.
+     */
+    resetRoots: function() {
+        var layer;
+        for(var i=0; i<this.layers.length; ++i) {
+            layer = this.layers[i];
+            if(this.renderer && layer.renderer.getRenderLayerId() == this.id) {
+                this.renderer.moveRoot(layer.renderer);
+            }
+        }
+    },
+    
+    /**
+     * Method: handleChangeLayer
+     * Event handler for the map's changelayer event. We need to rebuild
+     * this container's layer dom if order of one of its layers changes.
+     * This handler is added with the setMap method, and removed with the
+     * removeMap method.
+     * 
+     * Parameters:
+     * evt - {Object}
+     */
+    handleChangeLayer: function(evt) {
+        var layer = evt.layer;
+        if(evt.property == "order" &&
+                        OpenLayers.Util.indexOf(this.layers, layer) != -1) {
+            this.resetRoots();
+            this.collectRoots();
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.Vector.RootContainer"
+});
+/* ======================================================================
+    OpenLayers/Control/SelectFeature.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Control.js
+ * @requires OpenLayers/Feature/Vector.js
+ * @requires OpenLayers/Handler/Feature.js
+ * @requires OpenLayers/Layer/Vector/RootContainer.js
+ */
+
+/**
+ * Class: OpenLayers.Control.SelectFeature
+ * The SelectFeature control selects vector features from a given layer on 
+ * click or hover. 
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.SelectFeature = OpenLayers.Class(OpenLayers.Control, {
+
+    /** 
+     * APIProperty: events
+     * {<OpenLayers.Events>} Events instance for listeners and triggering
+     *     control specific events.
+     *
+     * Register a listener for a particular event with the following syntax:
+     * (code)
+     * control.events.register(type, obj, listener);
+     * (end)
+     *
+     * Supported event types (in addition to those from <OpenLayers.Control.events>):
+     * beforefeaturehighlighted - Triggered before a feature is highlighted
+     * featurehighlighted - Triggered when a feature is highlighted
+     * featureunhighlighted - Triggered when a feature is unhighlighted
+     * boxselectionstart - Triggered before box selection starts
+     * boxselectionend - Triggered after box selection ends
+     */
+    
+    /**
+     * Property: multipleKey
+     * {String} An event modifier ('altKey' or 'shiftKey') that temporarily sets
+     *     the <multiple> property to true.  Default is null.
+     */
+    multipleKey: null,
+    
+    /**
+     * Property: toggleKey
+     * {String} An event modifier ('altKey' or 'shiftKey') that temporarily sets
+     *     the <toggle> property to true.  Default is null.
+     */
+    toggleKey: null,
+    
+    /**
+     * APIProperty: multiple
+     * {Boolean} Allow selection of multiple geometries.  Default is false.
+     */
+    multiple: false, 
+
+    /**
+     * APIProperty: clickout
+     * {Boolean} Unselect features when clicking outside any feature.
+     *     Default is true.
+     */
+    clickout: true,
+
+    /**
+     * APIProperty: toggle
+     * {Boolean} Unselect a selected feature on click.  Default is false.  Only
+     *     has meaning if hover is false.
+     */
+    toggle: false,
+
+    /**
+     * APIProperty: hover
+     * {Boolean} Select on mouse over and deselect on mouse out.  If true, this
+     * ignores clicks and only listens to mouse moves.
+     */
+    hover: false,
+
+    /**
+     * APIProperty: highlightOnly
+     * {Boolean} If true do not actually select features (that is place them in 
+     * the layer's selected features array), just highlight them. This property
+     * has no effect if hover is false. Defaults to false.
+     */
+    highlightOnly: false,
+    
+    /**
+     * APIProperty: box
+     * {Boolean} Allow feature selection by drawing a box.
+     */
+    box: false,
+    
+    /**
+     * Property: onBeforeSelect 
+     * {Function} Optional function to be called before a feature is selected.
+     *     The function should expect to be called with a feature.
+     */
+    onBeforeSelect: function() {},
+    
+    /**
+     * APIProperty: onSelect 
+     * {Function} Optional function to be called when a feature is selected.
+     *     The function should expect to be called with a feature.
+     */
+    onSelect: function() {},
+
+    /**
+     * APIProperty: onUnselect
+     * {Function} Optional function to be called when a feature is unselected.
+     *     The function should expect to be called with a feature.
+     */
+    onUnselect: function() {},
+    
+    /**
+     * Property: scope
+     * {Object} The scope to use with the onBeforeSelect, onSelect, onUnselect
+     *     callbacks. If null the scope will be this control.
+     */
+    scope: null,
+
+    /**
+     * APIProperty: geometryTypes
+     * {Array(String)} To restrict selecting to a limited set of geometry types,
+     *     send a list of strings corresponding to the geometry class names.
+     */
+    geometryTypes: null,
+
+    /**
+     * Property: layer
+     * {<OpenLayers.Layer.Vector>} The vector layer with a common renderer
+     * root for all layers this control is configured with (if an array of
+     * layers was passed to the constructor), or the vector layer the control
+     * was configured with (if a single layer was passed to the constructor).
+     */
+    layer: null,
+    
+    /**
+     * Property: layers
+     * {Array(<OpenLayers.Layer.Vector>)} The layers this control will work on,
+     * or null if the control was configured with a single layer
+     */
+    layers: null,
+    
+    /**
+     * APIProperty: callbacks
+     * {Object} The functions that are sent to the handlers.feature for callback
+     */
+    callbacks: null,
+    
+    /**
+     * APIProperty: selectStyle 
+     * {Object} Hash of styles
+     */
+    selectStyle: null,
+    
+    /**
+     * Property: renderIntent
+     * {String} key used to retrieve the select style from the layer's
+     * style map.
+     */
+    renderIntent: "select",
+
+    /**
+     * Property: handlers
+     * {Object} Object with references to multiple <OpenLayers.Handler>
+     *     instances.
+     */
+    handlers: null,
+
+    /**
+     * Constructor: OpenLayers.Control.SelectFeature
+     * Create a new control for selecting features.
+     *
+     * Parameters:
+     * layers - {<OpenLayers.Layer.Vector>}, or an array of vector layers. The
+     *     layer(s) this control will select features from.
+     * options - {Object} 
+     */
+    initialize: function(layers, options) {
+        OpenLayers.Control.prototype.initialize.apply(this, [options]);
+        
+        if(this.scope === null) {
+            this.scope = this;
+        }
+        this.initLayer(layers);
+        var callbacks = {
+            click: this.clickFeature,
+            clickout: this.clickoutFeature
+        };
+        if (this.hover) {
+            callbacks.over = this.overFeature;
+            callbacks.out = this.outFeature;
+        }
+             
+        this.callbacks = OpenLayers.Util.extend(callbacks, this.callbacks);
+        this.handlers = {
+            feature: new OpenLayers.Handler.Feature(
+                this, this.layer, this.callbacks,
+                {geometryTypes: this.geometryTypes}
+            )
+        };
+
+        if (this.box) {
+            this.handlers.box = new OpenLayers.Handler.Box(
+                this, {done: this.selectBox},
+                {boxDivClassName: "olHandlerBoxSelectFeature"}
+            ); 
+        }
+    },
+
+    /**
+     * Method: initLayer
+     * Assign the layer property. If layers is an array, we need to use
+     *     a RootContainer.
+     *
+     * Parameters:
+     * layers - {<OpenLayers.Layer.Vector>}, or an array of vector layers.
+     */
+    initLayer: function(layers) {
+        if(OpenLayers.Util.isArray(layers)) {
+            this.layers = layers;
+            this.layer = new OpenLayers.Layer.Vector.RootContainer(
+                this.id + "_container", {
+                    layers: layers
+                }
+            );
+        } else {
+            this.layer = layers;
+        }
+    },
+    
+    /**
+     * Method: destroy
+     */
+    destroy: function() {
+        if(this.active && this.layers) {
+            this.map.removeLayer(this.layer);
+        }
+        OpenLayers.Control.prototype.destroy.apply(this, arguments);
+        if(this.layers) {
+            this.layer.destroy();
+        }
+    },
+
+    /**
+     * Method: activate
+     * Activates the control.
+     * 
+     * Returns:
+     * {Boolean} The control was effectively activated.
+     */
+    activate: function () {
+        if (!this.active) {
+            if(this.layers) {
+                this.map.addLayer(this.layer);
+            }
+            this.handlers.feature.activate();
+            if(this.box && this.handlers.box) {
+                this.handlers.box.activate();
+            }
+        }
+        return OpenLayers.Control.prototype.activate.apply(
+            this, arguments
+        );
+    },
+
+    /**
+     * Method: deactivate
+     * Deactivates the control.
+     * 
+     * Returns:
+     * {Boolean} The control was effectively deactivated.
+     */
+    deactivate: function () {
+        if (this.active) {
+            this.handlers.feature.deactivate();
+            if(this.handlers.box) {
+                this.handlers.box.deactivate();
+            }
+            if(this.layers) {
+                this.map.removeLayer(this.layer);
+            }
+        }
+        return OpenLayers.Control.prototype.deactivate.apply(
+            this, arguments
+        );
+    },
+
+    /**
+     * Method: unselectAll
+     * Unselect all selected features.  To unselect all except for a single
+     *     feature, set the options.except property to the feature.
+     *
+     * Parameters:
+     * options - {Object} Optional configuration object.
+     */
+    unselectAll: function(options) {
+        // we'll want an option to supress notification here
+        var layers = this.layers || [this.layer],
+            layer, feature, l, numExcept;
+        for(l=0; l<layers.length; ++l) {
+            layer = layers[l];
+            numExcept = 0;
+            //layer.selectedFeatures is null when layer is destroyed and 
+            //one of it's preremovelayer listener calls setLayer 
+            //with another layer on this control
+            if(layer.selectedFeatures != null) {
+                while(layer.selectedFeatures.length > numExcept) {
+                    feature = layer.selectedFeatures[numExcept];
+                    if(!options || options.except != feature) {
+                        this.unselect(feature);
+                    } else {
+                        ++numExcept;
+                    }
+                }
+            }
+        }
+    },
+
+    /**
+     * Method: clickFeature
+     * Called on click in a feature
+     * Only responds if this.hover is false.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} 
+     */
+    clickFeature: function(feature) {
+        if(!this.hover) {
+            var selected = (OpenLayers.Util.indexOf(
+                feature.layer.selectedFeatures, feature) > -1);
+            if(selected) {
+                if(this.toggleSelect()) {
+                    this.unselect(feature);
+                } else if(!this.multipleSelect()) {
+                    this.unselectAll({except: feature});
+                }
+            } else {
+                if(!this.multipleSelect()) {
+                    this.unselectAll({except: feature});
+                }
+                this.select(feature);
+            }
+        }
+    },
+
+    /**
+     * Method: multipleSelect
+     * Allow for multiple selected features based on <multiple> property and
+     *     <multipleKey> event modifier.
+     *
+     * Returns:
+     * {Boolean} Allow for multiple selected features.
+     */
+    multipleSelect: function() {
+        return this.multiple || (this.handlers.feature.evt &&
+                                 this.handlers.feature.evt[this.multipleKey]);
+    },
+    
+    /**
+     * Method: toggleSelect
+     * Event should toggle the selected state of a feature based on <toggle>
+     *     property and <toggleKey> event modifier.
+     *
+     * Returns:
+     * {Boolean} Toggle the selected state of a feature.
+     */
+    toggleSelect: function() {
+        return this.toggle || (this.handlers.feature.evt &&
+                               this.handlers.feature.evt[this.toggleKey]);
+    },
+
+    /**
+     * Method: clickoutFeature
+     * Called on click outside a previously clicked (selected) feature.
+     * Only responds if this.hover is false.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Vector.Feature>} 
+     */
+    clickoutFeature: function(feature) {
+        if(!this.hover && this.clickout) {
+            this.unselectAll();
+        }
+    },
+
+    /**
+     * Method: overFeature
+     * Called on over a feature.
+     * Only responds if this.hover is true.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} 
+     */
+    overFeature: function(feature) {
+        var layer = feature.layer;
+        if(this.hover) {
+            if(this.highlightOnly) {
+                this.highlight(feature);
+            } else if(OpenLayers.Util.indexOf(
+                layer.selectedFeatures, feature) == -1) {
+                this.select(feature);
+            }
+        }
+    },
+
+    /**
+     * Method: outFeature
+     * Called on out of a selected feature.
+     * Only responds if this.hover is true.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} 
+     */
+    outFeature: function(feature) {
+        if(this.hover) {
+            if(this.highlightOnly) {
+                // we do nothing if we're not the last highlighter of the
+                // feature
+                if(feature._lastHighlighter == this.id) {
+                    // if another select control had highlighted the feature before
+                    // we did it ourself then we use that control to highlight the
+                    // feature as it was before we highlighted it, else we just
+                    // unhighlight it
+                    if(feature._prevHighlighter &&
+                       feature._prevHighlighter != this.id) {
+                        delete feature._lastHighlighter;
+                        var control = this.map.getControl(
+                            feature._prevHighlighter);
+                        if(control) {
+                            control.highlight(feature);
+                        }
+                    } else {
+                        this.unhighlight(feature);
+                    }
+                }
+            } else {
+                this.unselect(feature);
+            }
+        }
+    },
+
+    /**
+     * Method: highlight
+     * Redraw feature with the select style.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} 
+     */
+    highlight: function(feature) {
+        var layer = feature.layer;
+        var cont = this.events.triggerEvent("beforefeaturehighlighted", {
+            feature : feature
+        });
+        if(cont !== false) {
+            feature._prevHighlighter = feature._lastHighlighter;
+            feature._lastHighlighter = this.id;
+            var style = this.selectStyle || this.renderIntent;
+            layer.drawFeature(feature, style);
+            this.events.triggerEvent("featurehighlighted", {feature : feature});
+        }
+    },
+
+    /**
+     * Method: unhighlight
+     * Redraw feature with the "default" style
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} 
+     */
+    unhighlight: function(feature) {
+        var layer = feature.layer;
+        // three cases:
+        // 1. there's no other highlighter, in that case _prev is undefined,
+        //    and we just need to undef _last
+        // 2. another control highlighted the feature after we did it, in
+        //    that case _last references this other control, and we just
+        //    need to undef _prev
+        // 3. another control highlighted the feature before we did it, in
+        //    that case _prev references this other control, and we need to
+        //    set _last to _prev and undef _prev
+        if(feature._prevHighlighter == undefined) {
+            delete feature._lastHighlighter;
+        } else if(feature._prevHighlighter == this.id) {
+            delete feature._prevHighlighter;
+        } else {
+            feature._lastHighlighter = feature._prevHighlighter;
+            delete feature._prevHighlighter;
+        }
+        layer.drawFeature(feature, feature.style || feature.layer.style ||
+            "default");
+        this.events.triggerEvent("featureunhighlighted", {feature : feature});
+    },
+    
+    /**
+     * Method: select
+     * Add feature to the layer's selectedFeature array, render the feature as
+     * selected, and call the onSelect function.
+     * 
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>} 
+     */
+    select: function(feature) {
+        var cont = this.onBeforeSelect.call(this.scope, feature);
+        var layer = feature.layer;
+        if(cont !== false) {
+            cont = layer.events.triggerEvent("beforefeatureselected", {
+                feature: feature
+            });
+            if(cont !== false) {
+                layer.selectedFeatures.push(feature);
+                this.highlight(feature);
+                // if the feature handler isn't involved in the feature
+                // selection (because the box handler is used or the
+                // feature is selected programatically) we fake the
+                // feature handler to allow unselecting on click
+                if(!this.handlers.feature.lastFeature) {
+                    this.handlers.feature.lastFeature = layer.selectedFeatures[0];
+                }
+                layer.events.triggerEvent("featureselected", {feature: feature});
+                this.onSelect.call(this.scope, feature);
+            }
+        }
+    },
+
+    /**
+     * Method: unselect
+     * Remove feature from the layer's selectedFeature array, render the feature as
+     * normal, and call the onUnselect function.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>}
+     */
+    unselect: function(feature) {
+        var layer = feature.layer;
+        // Store feature style for restoration later
+        this.unhighlight(feature);
+        OpenLayers.Util.removeItem(layer.selectedFeatures, feature);
+        layer.events.triggerEvent("featureunselected", {feature: feature});
+        this.onUnselect.call(this.scope, feature);
+    },
+    
+    /**
+     * Method: selectBox
+     * Callback from the handlers.box set up when <box> selection is true
+     *     on.
+     *
+     * Parameters:
+     * position - {<OpenLayers.Bounds> || <OpenLayers.Pixel> }  
+     */
+    selectBox: function(position) {
+        if (position instanceof OpenLayers.Bounds) {
+            var minXY = this.map.getLonLatFromPixel({
+                x: position.left,
+                y: position.bottom
+            });
+            var maxXY = this.map.getLonLatFromPixel({
+                x: position.right,
+                y: position.top
+            });
+            var bounds = new OpenLayers.Bounds(
+                minXY.lon, minXY.lat, maxXY.lon, maxXY.lat
+            );
+            
+            // if multiple is false, first deselect currently selected features
+            if (!this.multipleSelect()) {
+                this.unselectAll();
+            }
+            
+            // because we're using a box, we consider we want multiple selection
+            var prevMultiple = this.multiple;
+            this.multiple = true;
+            var layers = this.layers || [this.layer];
+            this.events.triggerEvent("boxselectionstart", {layers: layers}); 
+            var layer;
+            for(var l=0; l<layers.length; ++l) {
+                layer = layers[l];
+                for(var i=0, len = layer.features.length; i<len; ++i) {
+                    var feature = layer.features[i];
+                    // check if the feature is displayed
+                    if (!feature.getVisibility()) {
+                        continue;
+                    }
+
+                    if (this.geometryTypes == null || OpenLayers.Util.indexOf(
+                            this.geometryTypes, feature.geometry.CLASS_NAME) > -1) {
+                        if (bounds.toGeometry().intersects(feature.geometry)) {
+                            if (OpenLayers.Util.indexOf(layer.selectedFeatures, feature) == -1) {
+                                this.select(feature);
+                            }
+                        }
+                    }
+                }
+            }
+            this.multiple = prevMultiple;
+            this.events.triggerEvent("boxselectionend", {layers: layers}); 
+        }
+    },
+
+    /** 
+     * Method: setMap
+     * Set the map property for the control. 
+     * 
+     * Parameters:
+     * map - {<OpenLayers.Map>} 
+     */
+    setMap: function(map) {
+        this.handlers.feature.setMap(map);
+        if (this.box) {
+            this.handlers.box.setMap(map);
+        }
+        OpenLayers.Control.prototype.setMap.apply(this, arguments);
+    },
+    
+    /**
+     * APIMethod: setLayer
+     * Attach a new layer to the control, overriding any existing layers.
+     *
+     * Parameters:
+     * layers - Array of {<OpenLayers.Layer.Vector>} or a single
+     *     {<OpenLayers.Layer.Vector>}
+     */
+    setLayer: function(layers) {
+        var isActive = this.active;
+        this.unselectAll();
+        this.deactivate();
+        if(this.layers) {
+            this.layer.destroy();
+            this.layers = null;
+        }
+        this.initLayer(layers);
+        this.handlers.feature.layer = this.layer;
+        if (isActive) {
+            this.activate();
+        }
+    },
+    
+    CLASS_NAME: "OpenLayers.Control.SelectFeature"
+});
+/* ======================================================================
+    OpenLayers/Handler/Point.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Handler.js
+ * @requires OpenLayers/Geometry/Point.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.Point
+ * Handler to draw a point on the map. Point is displayed on activation,
+ *     moves on mouse move, and is finished on mouse up. The handler triggers
+ *     callbacks for 'done', 'cancel', and 'modify'. The modify callback is
+ *     called with each change in the sketch and will receive the latest point
+ *     drawn.  Create a new instance with the <OpenLayers.Handler.Point>
+ *     constructor.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Handler>
+ */
+OpenLayers.Handler.Point = OpenLayers.Class(OpenLayers.Handler, {
+    
+    /**
+     * Property: point
+     * {<OpenLayers.Feature.Vector>} The currently drawn point
+     */
+    point: null,
+
+    /**
+     * Property: layer
+     * {<OpenLayers.Layer.Vector>} The temporary drawing layer
+     */
+    layer: null,
+    
+    /**
+     * APIProperty: multi
+     * {Boolean} Cast features to multi-part geometries before passing to the
+     *     layer.  Default is false.
+     */
+    multi: false,
+    
+    /**
+     * APIProperty: citeCompliant
+     * {Boolean} If set to true, coordinates of features drawn in a map extent
+     * crossing the date line won't exceed the world bounds. Default is false.
+     */
+    citeCompliant: false,
+    
+    /**
+     * Property: mouseDown
+     * {Boolean} The mouse is down
+     */
+    mouseDown: false,
+
+    /**
+     * Property: stoppedDown
+     * {Boolean} Indicate whether the last mousedown stopped the event
+     * propagation.
+     */
+    stoppedDown: null,
+
+    /**
+     * Property: lastDown
+     * {<OpenLayers.Pixel>} Location of the last mouse down
+     */
+    lastDown: null,
+
+    /**
+     * Property: lastUp
+     * {<OpenLayers.Pixel>}
+     */
+    lastUp: null,
+
+    /**
+     * APIProperty: persist
+     * {Boolean} Leave the feature rendered until destroyFeature is called.
+     *     Default is false.  If set to true, the feature remains rendered until
+     *     destroyFeature is called, typically by deactivating the handler or
+     *     starting another drawing.
+     */
+    persist: false,
+
+    /**
+     * APIProperty: stopDown
+     * {Boolean} Stop event propagation on mousedown. Must be false to
+     *     allow "pan while drawing". Defaults to false.
+     */
+    stopDown: false,
+
+    /**
+     * APIPropery: stopUp
+     * {Boolean} Stop event propagation on mouse. Must be false to
+     *     allow "pan while dragging". Defaults to fase.
+     */
+    stopUp: false,
+
+    /**
+     * Property: layerOptions
+     * {Object} Any optional properties to be set on the sketch layer.
+     */
+    layerOptions: null,
+    
+    /**
+     * APIProperty: pixelTolerance
+     * {Number} Maximum number of pixels between down and up (mousedown
+     *     and mouseup, or touchstart and touchend) for the handler to
+     *     add a new point. If set to an integer value, if the
+     *     displacement between down and up is great to this value
+     *     no point will be added. Default value is 5.
+     */
+    pixelTolerance: 5,
+
+    /**
+     * Property: lastTouchPx
+     * {<OpenLayers.Pixel>} The last pixel used to know the distance between
+     * two touches (for double touch).
+     */
+    lastTouchPx: null,
+
+    /**
+     * Constructor: OpenLayers.Handler.Point
+     * Create a new point handler.
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that owns this handler
+     * callbacks - {Object} An object with a properties whose values are
+     *     functions.  Various callbacks described below.
+     * options - {Object} An optional object with properties to be set on the
+     *           handler
+     *
+     * Named callbacks:
+     * create - Called when a sketch is first created.  Callback called with
+     *     the creation point geometry and sketch feature.
+     * modify - Called with each move of a vertex with the vertex (point)
+     *     geometry and the sketch feature.
+     * done - Called when the point drawing is finished.  The callback will
+     *     recieve a single argument, the point geometry.
+     * cancel - Called when the handler is deactivated while drawing.  The
+     *     cancel callback will receive a geometry.
+     */
+    initialize: function(control, callbacks, options) {
+        if(!(options && options.layerOptions && options.layerOptions.styleMap)) {
+            this.style = OpenLayers.Util.extend(OpenLayers.Feature.Vector.style['default'], {});
+        }
+
+        OpenLayers.Handler.prototype.initialize.apply(this, arguments);
+    },
+    
+    /**
+     * APIMethod: activate
+     * turn on the handler
+     */
+    activate: function() {
+        if(!OpenLayers.Handler.prototype.activate.apply(this, arguments)) {
+            return false;
+        }
+        // create temporary vector layer for rendering geometry sketch
+        // TBD: this could be moved to initialize/destroy - setting visibility here
+        var options = OpenLayers.Util.extend({
+            displayInLayerSwitcher: false,
+            // indicate that the temp vector layer will never be out of range
+            // without this, resolution properties must be specified at the
+            // map-level for this temporary layer to init its resolutions
+            // correctly
+            calculateInRange: OpenLayers.Function.True,
+            wrapDateLine: this.citeCompliant
+        }, this.layerOptions);
+        this.layer = new OpenLayers.Layer.Vector(this.CLASS_NAME, options);
+        this.map.addLayer(this.layer);
+        return true;
+    },
+    
+    /**
+     * Method: createFeature
+     * Add temporary features
+     *
+     * Parameters:
+     * pixel - {<OpenLayers.Pixel>} A pixel location on the map.
+     */
+    createFeature: function(pixel) {
+        var lonlat = this.layer.getLonLatFromViewPortPx(pixel); 
+        var geometry = new OpenLayers.Geometry.Point(
+            lonlat.lon, lonlat.lat
+        );
+        this.point = new OpenLayers.Feature.Vector(geometry);
+        this.callback("create", [this.point.geometry, this.point]);
+        this.point.geometry.clearBounds();
+        this.layer.addFeatures([this.point], {silent: true});
+    },
+
+    /**
+     * APIMethod: deactivate
+     * turn off the handler
+     */
+    deactivate: function() {
+        if(!OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
+            return false;
+        }
+        this.cancel();
+        // If a layer's map property is set to null, it means that that layer
+        // isn't added to the map. Since we ourself added the layer to the map
+        // in activate(), we can assume that if this.layer.map is null it means
+        // that the layer has been destroyed (as a result of map.destroy() for
+        // example.
+        if (this.layer.map != null) {
+            this.destroyFeature(true);
+            this.layer.destroy(false);
+        }
+        this.layer = null;
+        return true;
+    },
+    
+    /**
+     * Method: destroyFeature
+     * Destroy the temporary geometries
+     *
+     * Parameters:
+     * force - {Boolean} Destroy even if persist is true.
+     */
+    destroyFeature: function(force) {
+        if(this.layer && (force || !this.persist)) {
+            this.layer.destroyFeatures();
+        }
+        this.point = null;
+    },
+
+    /**
+     * Method: destroyPersistedFeature
+     * Destroy the persisted feature.
+     */
+    destroyPersistedFeature: function() {
+        var layer = this.layer;
+        if(layer && layer.features.length > 1) {
+            this.layer.features[0].destroy();
+        }
+    },
+
+    /**
+     * Method: finalize
+     * Finish the geometry and call the "done" callback.
+     *
+     * Parameters:
+     * cancel - {Boolean} Call cancel instead of done callback.  Default
+     *          is false.
+     */
+    finalize: function(cancel) {
+        var key = cancel ? "cancel" : "done";
+        this.mouseDown = false;
+        this.lastDown = null;
+        this.lastUp = null;
+        this.lastTouchPx = null;
+        this.callback(key, [this.geometryClone()]);
+        this.destroyFeature(cancel);
+    },
+
+    /**
+     * APIMethod: cancel
+     * Finish the geometry and call the "cancel" callback.
+     */
+    cancel: function() {
+        this.finalize(true);
+    },
+
+    /**
+     * Method: click
+     * Handle clicks.  Clicks are stopped from propagating to other listeners
+     *     on map.events or other dom elements.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    click: function(evt) {
+        OpenLayers.Event.stop(evt);
+        return false;
+    },
+
+    /**
+     * Method: dblclick
+     * Handle double-clicks.  Double-clicks are stopped from propagating to other
+     *     listeners on map.events or other dom elements.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    dblclick: function(evt) {
+        OpenLayers.Event.stop(evt);
+        return false;
+    },
+    
+    /**
+     * Method: modifyFeature
+     * Modify the existing geometry given a pixel location.
+     *
+     * Parameters:
+     * pixel - {<OpenLayers.Pixel>} A pixel location on the map.
+     */
+    modifyFeature: function(pixel) {
+        if(!this.point) {
+            this.createFeature(pixel);
+        }
+        var lonlat = this.layer.getLonLatFromViewPortPx(pixel); 
+        this.point.geometry.x = lonlat.lon;
+        this.point.geometry.y = lonlat.lat;
+        this.callback("modify", [this.point.geometry, this.point, false]);
+        this.point.geometry.clearBounds();
+        this.drawFeature();
+    },
+
+    /**
+     * Method: drawFeature
+     * Render features on the temporary layer.
+     */
+    drawFeature: function() {
+        this.layer.drawFeature(this.point, this.style);
+    },
+    
+    /**
+     * Method: getGeometry
+     * Return the sketch geometry.  If <multi> is true, this will return
+     *     a multi-part geometry.
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.Point>}
+     */
+    getGeometry: function() {
+        var geometry = this.point && this.point.geometry;
+        if(geometry && this.multi) {
+            geometry = new OpenLayers.Geometry.MultiPoint([geometry]);
+        }
+        return geometry;
+    },
+
+    /**
+     * Method: geometryClone
+     * Return a clone of the relevant geometry.
+     *
+     * Returns:
+     * {<OpenLayers.Geometry>}
+     */
+    geometryClone: function() {
+        var geom = this.getGeometry();
+        return geom && geom.clone();
+    },
+
+    /**
+     * Method: mousedown
+     * Handle mousedown.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    mousedown: function(evt) {
+        return this.down(evt);
+    },
+
+    /**
+     * Method: touchstart
+     * Handle touchstart.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    touchstart: function(evt) {
+        this.startTouch();
+        this.lastTouchPx = evt.xy;
+        return this.down(evt);
+    },
+
+    /**
+     * Method: mousemove
+     * Handle mousemove.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    mousemove: function(evt) {
+        return this.move(evt);
+    },
+
+    /**
+     * Method: touchmove
+     * Handle touchmove.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    touchmove: function(evt) {
+        this.lastTouchPx = evt.xy;
+        return this.move(evt);
+    },
+
+    /**
+     * Method: mouseup
+     * Handle mouseup.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    mouseup: function(evt) {
+        return this.up(evt);
+    },
+
+    /**
+     * Method: touchend
+     * Handle touchend.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    touchend: function(evt) {
+        evt.xy = this.lastTouchPx;
+        return this.up(evt);
+    },
+  
+    /**
+     * Method: down
+     * Handle mousedown and touchstart.  Adjust the geometry and redraw.
+     * Return determines whether to propagate the event on the map.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    down: function(evt) {
+        this.mouseDown = true;
+        this.lastDown = evt.xy;
+        if(!this.touch) { // no point displayed until up on touch devices
+            this.modifyFeature(evt.xy);
+        }
+        this.stoppedDown = this.stopDown;
+        return !this.stopDown;
+    },
+
+    /**
+     * Method: move
+     * Handle mousemove and touchmove.  Adjust the geometry and redraw.
+     * Return determines whether to propagate the event on the map.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    move: function (evt) {
+        if(!this.touch // no point displayed until up on touch devices
+           && (!this.mouseDown || this.stoppedDown)) {
+            this.modifyFeature(evt.xy);
+        }
+        return true;
+    },
+
+    /**
+     * Method: up
+     * Handle mouseup and touchend.  Send the latest point in the geometry to the control.
+     * Return determines whether to propagate the event on the map.
+     *
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    up: function (evt) {
+        this.mouseDown = false;
+        this.stoppedDown = this.stopDown;
+
+        // check keyboard modifiers
+        if(!this.checkModifiers(evt)) {
+            return true;
+        }
+        // ignore double-clicks
+        if (this.lastUp && this.lastUp.equals(evt.xy)) {
+            return true;
+        }
+        if (this.lastDown && this.passesTolerance(this.lastDown, evt.xy,
+                                                  this.pixelTolerance)) {
+            if (this.touch) {
+                this.modifyFeature(evt.xy);
+            }
+            if(this.persist) {
+                this.destroyPersistedFeature();
+            }
+            this.lastUp = evt.xy;
+            this.finalize();
+            return !this.stopUp;
+        } else {
+            return true;
+        }
+    },
+
+    /**
+     * Method: mouseout
+     * Handle mouse out.  For better user experience reset mouseDown
+     * and stoppedDown when the mouse leaves the map viewport.
+     *
+     * Parameters:
+     * evt - {Event} The browser event
+     */
+    mouseout: function(evt) {
+        if(OpenLayers.Util.mouseLeft(evt, this.map.viewPortDiv)) {
+            this.stoppedDown = this.stopDown;
+            this.mouseDown = false;
+        }
+    },
+
+    /**
+     * Method: passesTolerance
+     * Determine whether the event is within the optional pixel tolerance.
+     *
+     * Returns:
+     * {Boolean} The event is within the pixel tolerance (if specified).
+     */
+    passesTolerance: function(pixel1, pixel2, tolerance) {
+        var passes = true;
+
+        if (tolerance != null && pixel1 && pixel2) {
+            var dist = pixel1.distanceTo(pixel2);
+            if (dist > tolerance) {
+                passes = false;
+            }
+        }
+        return passes;
+    },
+    
+    CLASS_NAME: "OpenLayers.Handler.Point"
+});
+/* ======================================================================
+    OpenLayers/Handler/Path.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Handler/Point.js
+ * @requires OpenLayers/Geometry/Point.js
+ * @requires OpenLayers/Geometry/LineString.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.Path
+ * Handler to draw a path on the map.  Path is displayed on mouse down,
+ * moves on mouse move, and is finished on mouse up.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Handler.Point>
+ */
+OpenLayers.Handler.Path = OpenLayers.Class(OpenLayers.Handler.Point, {
+    
+    /**
+     * Property: line
+     * {<OpenLayers.Feature.Vector>}
+     */
+    line: null,
+
+    /**
+     * APIProperty: maxVertices
+     * {Number} The maximum number of vertices which can be drawn by this
+     * handler. When the number of vertices reaches maxVertices, the
+     * geometry is automatically finalized. Default is null.
+     */
+    maxVertices: null,
+
+    /**
+     * Property: doubleTouchTolerance
+     * {Number} Maximum number of pixels between two touches for
+     *     the gesture to be considered a "finalize feature" action.
+     *     Default is 20.
+     */
+    doubleTouchTolerance: 20,
+
+    /**
+     * Property: freehand
+     * {Boolean} In freehand mode, the handler starts the path on mouse down,
+     * adds a point for every mouse move, and finishes the path on mouse up.
+     * Outside of freehand mode, a point is added to the path on every mouse
+     * click and double-click finishes the path.
+     */
+    freehand: false,
+    
+    /**
+     * Property: freehandToggle
+     * {String} If set, freehandToggle is checked on mouse events and will set
+     * the freehand mode to the opposite of this.freehand.  To disallow
+     * toggling between freehand and non-freehand mode, set freehandToggle to
+     * null.  Acceptable toggle values are 'shiftKey', 'ctrlKey', and 'altKey'.
+     */
+    freehandToggle: 'shiftKey',
+
+    /**
+     * Property: timerId
+     * {Integer} The timer used to test the double touch.
+     */
+    timerId: null,
+
+    /**
+     * Property: redoStack
+     * {Array} Stack containing points removed with <undo>.
+     */
+    redoStack: null,
+
+    /**
+     * Constructor: OpenLayers.Handler.Path
+     * Create a new path hander
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that owns this handler
+     * callbacks - {Object} An object with a properties whose values are
+     *     functions.  Various callbacks described below.
+     * options - {Object} An optional object with properties to be set on the
+     *           handler
+     *
+     * Named callbacks:
+     * create - Called when a sketch is first created.  Callback called with
+     *     the creation point geometry and sketch feature.
+     * modify - Called with each move of a vertex with the vertex (point)
+     *     geometry and the sketch feature.
+     * point - Called as each point is added.  Receives the new point geometry.
+     * done - Called when the point drawing is finished.  The callback will
+     *     recieve a single argument, the linestring geometry.
+     * cancel - Called when the handler is deactivated while drawing.  The
+     *     cancel callback will receive a geometry.
+     */
+
+    /**
+     * Method: createFeature
+     * Add temporary geometries
+     *
+     * Parameters:
+     * pixel - {<OpenLayers.Pixel>} The initial pixel location for the new
+     *     feature.
+     */
+    createFeature: function(pixel) {
+        var lonlat = this.layer.getLonLatFromViewPortPx(pixel); 
+        var geometry = new OpenLayers.Geometry.Point(
+            lonlat.lon, lonlat.lat
+        );
+        this.point = new OpenLayers.Feature.Vector(geometry);
+        this.line = new OpenLayers.Feature.Vector(
+            new OpenLayers.Geometry.LineString([this.point.geometry])
+        );
+        this.callback("create", [this.point.geometry, this.getSketch()]);
+        this.point.geometry.clearBounds();
+        this.layer.addFeatures([this.line, this.point], {silent: true});
+    },
+        
+    /**
+     * Method: destroyFeature
+     * Destroy temporary geometries
+     *
+     * Parameters:
+     * force - {Boolean} Destroy even if persist is true.
+     */
+    destroyFeature: function(force) {
+        OpenLayers.Handler.Point.prototype.destroyFeature.call(
+            this, force);
+        this.line = null;
+    },
+
+    /**
+     * Method: destroyPersistedFeature
+     * Destroy the persisted feature.
+     */
+    destroyPersistedFeature: function() {
+        var layer = this.layer;
+        if(layer && layer.features.length > 2) {
+            this.layer.features[0].destroy();
+        }
+    },
+
+    /**
+     * Method: removePoint
+     * Destroy the temporary point.
+     */
+    removePoint: function() {
+        if(this.point) {
+            this.layer.removeFeatures([this.point]);
+        }
+    },
+    
+    /**
+     * Method: addPoint
+     * Add point to geometry.  Send the point index to override
+     * the behavior of LinearRing that disregards adding duplicate points.
+     *
+     * Parameters:
+     * pixel - {<OpenLayers.Pixel>} The pixel location for the new point.
+     */
+    addPoint: function(pixel) {
+        this.layer.removeFeatures([this.point]);
+        var lonlat = this.layer.getLonLatFromViewPortPx(pixel); 
+        this.point = new OpenLayers.Feature.Vector(
+            new OpenLayers.Geometry.Point(lonlat.lon, lonlat.lat)
+        );
+        this.line.geometry.addComponent(
+            this.point.geometry, this.line.geometry.components.length
+        );
+        this.layer.addFeatures([this.point]);
+        this.callback("point", [this.point.geometry, this.getGeometry()]);
+        this.callback("modify", [this.point.geometry, this.getSketch()]);
+        this.drawFeature();
+        delete this.redoStack;
+    },
+    
+    /**
+     * Method: insertXY
+     * Insert a point in the current sketch given x & y coordinates.  The new
+     *     point is inserted immediately before the most recently drawn point.
+     *
+     * Parameters:
+     * x - {Number} The x-coordinate of the point.
+     * y - {Number} The y-coordinate of the point.
+     */
+    insertXY: function(x, y) {
+        this.line.geometry.addComponent(
+            new OpenLayers.Geometry.Point(x, y), 
+            this.getCurrentPointIndex()
+        );
+        this.drawFeature();
+        delete this.redoStack;
+    },
+
+    /**
+     * Method: insertDeltaXY
+     * Insert a point given offsets from the previously inserted point.
+     *
+     * Parameters:
+     * dx - {Number} The x-coordinate offset of the point.
+     * dy - {Number} The y-coordinate offset of the point.
+     */
+    insertDeltaXY: function(dx, dy) {
+        var previousIndex = this.getCurrentPointIndex() - 1;
+        var p0 = this.line.geometry.components[previousIndex];
+        if (p0 && !isNaN(p0.x) && !isNaN(p0.y)) {
+            this.insertXY(p0.x + dx, p0.y + dy);
+        }
+    },
+
+    /**
+     * Method: insertDirectionLength
+     * Insert a point in the current sketch given a direction and a length.
+     *
+     * Parameters:
+     * direction - {Number} Degrees clockwise from the positive x-axis.
+     * length - {Number} Distance from the previously drawn point.
+     */
+    insertDirectionLength: function(direction, length) {
+        direction *= Math.PI / 180;
+        var dx = length * Math.cos(direction);
+        var dy = length * Math.sin(direction);
+        this.insertDeltaXY(dx, dy);
+    },
+
+    /**
+     * Method: insertDeflectionLength
+     * Insert a point in the current sketch given a deflection and a length.
+     *     The deflection should be degrees clockwise from the previously 
+     *     digitized segment.
+     *
+     * Parameters:
+     * deflection - {Number} Degrees clockwise from the previous segment.
+     * length - {Number} Distance from the previously drawn point.
+     */
+    insertDeflectionLength: function(deflection, length) {
+        var previousIndex = this.getCurrentPointIndex() - 1;
+        if (previousIndex > 0) {
+            var p1 = this.line.geometry.components[previousIndex];
+            var p0 = this.line.geometry.components[previousIndex-1];
+            var theta = Math.atan2(p1.y - p0.y, p1.x - p0.x);
+            this.insertDirectionLength(
+                (theta * 180 / Math.PI) + deflection, length
+            );
+        }
+    },
+
+    /**
+     * Method: getCurrentPointIndex
+     * 
+     * Returns:
+     * {Number} The index of the most recently drawn point.
+     */
+    getCurrentPointIndex: function() {
+        return this.line.geometry.components.length - 1;
+    },
+    
+    
+    /**
+     * Method: undo
+     * Remove the most recently added point in the sketch geometry.
+     *
+     * Returns: 
+     * {Boolean} A point was removed.
+     */
+    undo: function() {
+        var geometry = this.line.geometry;
+        var components = geometry.components;
+        var index = this.getCurrentPointIndex() - 1;
+        var target = components[index];
+        var undone = geometry.removeComponent(target);
+        if (undone) {
+            // On touch devices, set the current ("mouse location") point to
+            // match the last digitized point.
+            if (this.touch && index > 0) {
+                components = geometry.components; // safety
+                var lastpt = components[index - 1];
+                var curptidx = this.getCurrentPointIndex();
+                var curpt = components[curptidx];
+                curpt.x = lastpt.x;
+                curpt.y = lastpt.y;
+            }
+            if (!this.redoStack) {
+                this.redoStack = [];
+            }
+            this.redoStack.push(target);
+            this.drawFeature();
+        }
+        return undone;
+    },
+    
+    /**
+     * Method: redo
+     * Reinsert the most recently removed point resulting from an <undo> call.
+     *     The undo stack is deleted whenever a point is added by other means.
+     *
+     * Returns: 
+     * {Boolean} A point was added.
+     */
+    redo: function() {
+        var target = this.redoStack && this.redoStack.pop();
+        if (target) {
+            this.line.geometry.addComponent(target, this.getCurrentPointIndex());
+            this.drawFeature();
+        }
+        return !!target;
+    },
+    
+    /**
+     * Method: freehandMode
+     * Determine whether to behave in freehand mode or not.
+     *
+     * Returns:
+     * {Boolean}
+     */
+    freehandMode: function(evt) {
+        return (this.freehandToggle && evt[this.freehandToggle]) ?
+                    !this.freehand : this.freehand;
+    },
+
+    /**
+     * Method: modifyFeature
+     * Modify the existing geometry given the new point
+     *
+     * Parameters:
+     * pixel - {<OpenLayers.Pixel>} The updated pixel location for the latest
+     *     point.
+     * drawing - {Boolean} Indicate if we're currently drawing.
+     */
+    modifyFeature: function(pixel, drawing) {
+        if(!this.line) {
+            this.createFeature(pixel);
+        }
+        var lonlat = this.layer.getLonLatFromViewPortPx(pixel); 
+        this.point.geometry.x = lonlat.lon;
+        this.point.geometry.y = lonlat.lat;
+        this.callback("modify", [this.point.geometry, this.getSketch(), drawing]);
+        this.point.geometry.clearBounds();
+        this.drawFeature();
+    },
+
+    /**
+     * Method: drawFeature
+     * Render geometries on the temporary layer.
+     */
+    drawFeature: function() {
+        this.layer.drawFeature(this.line, this.style);
+        this.layer.drawFeature(this.point, this.style);
+    },
+
+    /**
+     * Method: getSketch
+     * Return the sketch feature.
+     *
+     * Returns:
+     * {<OpenLayers.Feature.Vector>}
+     */
+    getSketch: function() {
+        return this.line;
+    },
+
+    /**
+     * Method: getGeometry
+     * Return the sketch geometry.  If <multi> is true, this will return
+     *     a multi-part geometry.
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.LineString>}
+     */
+    getGeometry: function() {
+        var geometry = this.line && this.line.geometry;
+        if(geometry && this.multi) {
+            geometry = new OpenLayers.Geometry.MultiLineString([geometry]);
+        }
+        return geometry;
+    },
+
+    /**
+     * method: touchstart
+     * handle touchstart.
+     *
+     * parameters:
+     * evt - {event} the browser event
+     *
+     * returns:
+     * {boolean} allow event propagation
+     */
+    touchstart: function(evt) {
+        if (this.timerId &&
+            this.passesTolerance(this.lastTouchPx, evt.xy,
+                                 this.doubleTouchTolerance)) {
+            // double-tap, finalize the geometry
+            this.finishGeometry();
+            window.clearTimeout(this.timerId);
+            this.timerId = null;
+            return false;
+        } else {
+            if (this.timerId) {
+                window.clearTimeout(this.timerId);
+                this.timerId = null;
+            }
+            this.timerId = window.setTimeout(
+                OpenLayers.Function.bind(function() {
+                    this.timerId = null;
+                }, this), 300);
+            return OpenLayers.Handler.Point.prototype.touchstart.call(this, evt);
+        }
+    },
+
+    /**
+     * Method: down
+     * Handle mousedown and touchstart.  Add a new point to the geometry and
+     * render it. Return determines whether to propagate the event on the map.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    down: function(evt) {
+        var stopDown = this.stopDown;
+        if(this.freehandMode(evt)) {
+            stopDown = true;
+            if (this.touch) {
+                this.modifyFeature(evt.xy, !!this.lastUp);
+                OpenLayers.Event.stop(evt);
+            }
+        }
+        if (!this.touch && (!this.lastDown ||
+                            !this.passesTolerance(this.lastDown, evt.xy,
+                                                  this.pixelTolerance))) {
+            this.modifyFeature(evt.xy, !!this.lastUp);
+        }
+        this.mouseDown = true;
+        this.lastDown = evt.xy;
+        this.stoppedDown = stopDown;
+        return !stopDown;
+    },
+
+    /**
+     * Method: move
+     * Handle mousemove and touchmove.  Adjust the geometry and redraw.
+     * Return determines whether to propagate the event on the map.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    move: function (evt) {
+        if(this.stoppedDown && this.freehandMode(evt)) {
+            if(this.persist) {
+                this.destroyPersistedFeature();
+            }
+            if(this.maxVertices && this.line &&
+                    this.line.geometry.components.length === this.maxVertices) {
+                this.removePoint();
+                this.finalize();
+            } else {
+                this.addPoint(evt.xy);
+            }
+            return false;
+        }
+        if (!this.touch && (!this.mouseDown || this.stoppedDown)) {
+            this.modifyFeature(evt.xy, !!this.lastUp);
+        }
+        return true;
+    },
+    
+    /**
+     * Method: up
+     * Handle mouseup and touchend.  Send the latest point in the geometry to
+     * the control. Return determines whether to propagate the event on the map.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    up: function (evt) {
+        if (this.mouseDown && (!this.lastUp || !this.lastUp.equals(evt.xy))) {
+            if(this.stoppedDown && this.freehandMode(evt)) {
+                if (this.persist) {
+                    this.destroyPersistedFeature();
+                }
+                this.removePoint();
+                this.finalize();
+            } else {
+                if (this.passesTolerance(this.lastDown, evt.xy,
+                                         this.pixelTolerance)) {
+                    if (this.touch) {
+                        this.modifyFeature(evt.xy);
+                    }
+                    if(this.lastUp == null && this.persist) {
+                        this.destroyPersistedFeature();
+                    }
+                    this.addPoint(evt.xy);
+                    this.lastUp = evt.xy;
+                    if(this.line.geometry.components.length === this.maxVertices + 1) {
+                        this.finishGeometry();
+                    }
+                }
+            }
+        }
+        this.stoppedDown = this.stopDown;
+        this.mouseDown = false;
+        return !this.stopUp;
+    },
+
+    /**
+     * APIMethod: finishGeometry
+     * Finish the geometry and send it back to the control.
+     */
+    finishGeometry: function() {
+        var index = this.line.geometry.components.length - 1;
+        this.line.geometry.removeComponent(this.line.geometry.components[index]);
+        this.removePoint();
+        this.finalize();
+    },
+  
+    /**
+     * Method: dblclick 
+     * Handle double-clicks.
+     * 
+     * Parameters:
+     * evt - {Event} The browser event
+     *
+     * Returns: 
+     * {Boolean} Allow event propagation
+     */
+    dblclick: function(evt) {
+        if(!this.freehandMode(evt)) {
+            this.finishGeometry();
+        }
+        return false;
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.Path"
+});
+/* ======================================================================
+    OpenLayers/Control/Attribution.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Control.js
+ */
+
+/**
+ * Class: OpenLayers.Control.Attribution
+ * The attribution control adds attribution from layers to the map display. 
+ * It uses 'attribution' property of each layer.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.Attribution = 
+  OpenLayers.Class(OpenLayers.Control, {
+    
+    /**
+     * APIProperty: separator
+     * {String} String used to separate layers.
+     */
+    separator: ", ",
+    
+    /**
+     * APIProperty: template
+     * {String} Template for the attribution. This has to include the substring
+     *     "${layers}", which will be replaced by the layer specific
+     *     attributions, separated by <separator>. The default is "${layers}".
+     */
+    template: "${layers}",
+    
+    /**
+     * Constructor: OpenLayers.Control.Attribution 
+     * 
+     * Parameters:
+     * options - {Object} Options for control.
+     */
+
+    /** 
+     * Method: destroy
+     * Destroy control.
+     */
+    destroy: function() {
+        this.map.events.un({
+            "removelayer": this.updateAttribution,
+            "addlayer": this.updateAttribution,
+            "changelayer": this.updateAttribution,
+            "changebaselayer": this.updateAttribution,
+            scope: this
+        });
+        
+        OpenLayers.Control.prototype.destroy.apply(this, arguments);
+    },    
+    
+    /**
+     * Method: draw
+     * Initialize control.
+     * 
+     * Returns: 
+     * {DOMElement} A reference to the DIV DOMElement containing the control
+     */    
+    draw: function() {
+        OpenLayers.Control.prototype.draw.apply(this, arguments);
+        
+        this.map.events.on({
+            'changebaselayer': this.updateAttribution,
+            'changelayer': this.updateAttribution,
+            'addlayer': this.updateAttribution,
+            'removelayer': this.updateAttribution,
+            scope: this
+        });
+        this.updateAttribution();
+        
+        return this.div;    
+    },
+
+    /**
+     * Method: updateAttribution
+     * Update attribution string.
+     */
+    updateAttribution: function() {
+        var attributions = [];
+        if (this.map && this.map.layers) {
+            for(var i=0, len=this.map.layers.length; i<len; i++) {
+                var layer = this.map.layers[i];
+                if (layer.attribution && layer.getVisibility()) {
+                    // add attribution only if attribution text is unique
+                    if (OpenLayers.Util.indexOf(
+                                    attributions, layer.attribution) === -1) {
+                        attributions.push( layer.attribution );
+                    }
+                }
+            } 
+            this.div.innerHTML = OpenLayers.String.format(this.template, {
+                layers: attributions.join(this.separator)
+            });
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Control.Attribution"
+});
+/* ======================================================================
+    OpenLayers/Kinetic.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/BaseTypes/Class.js
+ * @requires OpenLayers/Animation.js
+ */
+
+OpenLayers.Kinetic = OpenLayers.Class({
+
+    /**
+     * Property: threshold
+     * In most cases changing the threshold isn't needed.
+     * In px/ms, default to 0.
+     */
+    threshold: 0,
+
+    /**
+     * Property: deceleration
+     * {Float} the deseleration in px/ms², default to 0.0035.
+     */
+    deceleration: 0.0035,
+
+    /**
+     * Property: nbPoints
+     * {Integer} the number of points we use to calculate the kinetic
+     * initial values.
+     */
+    nbPoints: 100,
+
+    /**
+     * Property: delay
+     * {Float} time to consider to calculate the kinetic initial values.
+     * In ms, default to 200.
+     */
+    delay: 200,
+
+    /**
+     * Property: points
+     * List of points use to calculate the kinetic initial values.
+     */
+    points: undefined,
+
+    /**
+     * Property: timerId
+     * ID of the timer.
+     */
+    timerId: undefined,
+
+    /**
+     * Constructor: OpenLayers.Kinetic
+     *
+     * Parameters:
+     * options - {Object}
+     */
+    initialize: function(options) {
+        OpenLayers.Util.extend(this, options);
+    },
+
+    /**
+     * Method: begin
+     * Begins the dragging.
+     */
+    begin: function() {
+        OpenLayers.Animation.stop(this.timerId);
+        this.timerId = undefined;
+        this.points = [];
+    },
+
+    /**
+     * Method: update
+     * Updates during the dragging.
+     *
+     * Parameters:
+     * xy - {<OpenLayers.Pixel>} The new position.
+     */
+    update: function(xy) {
+        this.points.unshift({xy: xy, tick: new Date().getTime()});
+        if (this.points.length > this.nbPoints) {
+            this.points.pop();
+        }
+    },
+
+    /**
+     * Method: end
+     * Ends the dragging, start the kinetic.
+     *
+     * Parameters:
+     * xy - {<OpenLayers.Pixel>} The last position.
+     *
+     * Returns:
+     * {Object} An object with two properties: "speed", and "theta". The
+     *     "speed" and "theta" values are to be passed to the move 
+     *     function when starting the animation.
+     */
+    end: function(xy) {
+        var last, now = new Date().getTime();
+        for (var i = 0, l = this.points.length, point; i < l; i++) {
+            point = this.points[i];
+            if (now - point.tick > this.delay) {
+                break;
+            }
+            last = point;
+        }
+        if (!last) {
+            return;
+        }
+        var time = new Date().getTime() - last.tick;
+        var dist = Math.sqrt(Math.pow(xy.x - last.xy.x, 2) +
+                             Math.pow(xy.y - last.xy.y, 2));
+        var speed = dist / time;
+        if (speed == 0 || speed < this.threshold) {
+            return;
+        }
+        var theta = Math.asin((xy.y - last.xy.y) / dist);
+        if (last.xy.x <= xy.x) {
+            theta = Math.PI - theta;
+        }
+        return {speed: speed, theta: theta};
+    },
+
+    /**
+     * Method: move
+     * Launch the kinetic move pan.
+     *
+     * Parameters:
+     * info - {Object} An object with two properties, "speed", and "theta".
+     *     These values are those returned from the "end" call.
+     * callback - {Function} Function called on every step of the animation,
+     *     receives x, y (values to pan), end (is the last point).
+     */
+    move: function(info, callback) {
+        var v0 = info.speed;
+        var fx = Math.cos(info.theta);
+        var fy = -Math.sin(info.theta);
+
+        var initialTime = new Date().getTime();
+
+        var lastX = 0;
+        var lastY = 0;
+
+        var timerCallback = function() {
+            if (this.timerId == null) {
+                return;
+            }
+
+            var t = new Date().getTime() - initialTime;
+
+            var p = (-this.deceleration * Math.pow(t, 2)) / 2.0 + v0 * t;
+            var x = p * fx;
+            var y = p * fy;
+
+            var args = {};
+            args.end = false;
+            var v = -this.deceleration * t + v0;
+
+            if (v <= 0) {
+                OpenLayers.Animation.stop(this.timerId);
+                this.timerId = null;
+                args.end = true;
+            }
+
+            args.x = x - lastX;
+            args.y = y - lastY;
+            lastX = x;
+            lastY = y;
+            callback(args.x, args.y, args.end);
+        };
+
+        this.timerId = OpenLayers.Animation.start(
+            OpenLayers.Function.bind(timerCallback, this)
+        );
+    },
+
+    CLASS_NAME: "OpenLayers.Kinetic"
+});
+/* ======================================================================
+    OpenLayers/Layer/WMS.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Layer/Grid.js
+ */
+
+/**
+ * Class: OpenLayers.Layer.WMS
+ * Instances of OpenLayers.Layer.WMS are used to display data from OGC Web
+ *     Mapping Services. Create a new WMS layer with the <OpenLayers.Layer.WMS>
+ *     constructor.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Layer.Grid>
+ */
+OpenLayers.Layer.WMS = OpenLayers.Class(OpenLayers.Layer.Grid, {
+
+    /**
+     * Constant: DEFAULT_PARAMS
+     * {Object} Hashtable of default parameter key/value pairs 
+     */
+    DEFAULT_PARAMS: { service: "WMS",
+                      version: "1.1.1",
+                      request: "GetMap",
+                      styles: "",
+                      format: "image/jpeg"
+                     },
+    
+    /**
+     * APIProperty: isBaseLayer
+     * {Boolean} Default is true for WMS layer
+     */
+    isBaseLayer: true,
+    
+    /**
+     * APIProperty: encodeBBOX
+     * {Boolean} Should the BBOX commas be encoded? The WMS spec says 'no', 
+     * but some services want it that way. Default false.
+     */
+    encodeBBOX: false,
+    
+    /** 
+     * APIProperty: noMagic 
+     * {Boolean} If true, the image format will not be automagicaly switched 
+     *     from image/jpeg to image/png or image/gif when using 
+     *     TRANSPARENT=TRUE. Also isBaseLayer will not changed by the  
+     *     constructor. Default false. 
+     */ 
+    noMagic: false,
+    
+    /**
+     * Property: yx
+     * {Object} Keys in this object are EPSG codes for which the axis order
+     *     is to be reversed (yx instead of xy, LatLon instead of LonLat), with
+     *     true as value. This is only relevant for WMS versions >= 1.3.0, and
+     *     only if yx is not set in <OpenLayers.Projection.defaults> for the
+     *     used projection.
+     */
+    yx: {},
+    
+    /**
+     * Constructor: OpenLayers.Layer.WMS
+     * Create a new WMS layer object
+     *
+     * Examples:
+     *
+     * The code below creates a simple WMS layer using the image/jpeg format.
+     * (code)
+     * var wms = new OpenLayers.Layer.WMS("NASA Global Mosaic",
+     *                                    "http://wms.jpl.nasa.gov/wms.cgi", 
+     *                                    {layers: "modis,global_mosaic"});
+     * (end)
+     * Note the 3rd argument (params). Properties added to this object will be
+     * added to the WMS GetMap requests used for this layer's tiles. The only
+     * mandatory parameter is "layers". Other common WMS params include
+     * "transparent", "styles" and "format". Note that the "srs" param will
+     * always be ignored. Instead, it will be derived from the baseLayer's or
+     * map's projection.
+     *
+     * The code below creates a transparent WMS layer with additional options.
+     * (code)
+     * var wms = new OpenLayers.Layer.WMS("NASA Global Mosaic",
+     *                                    "http://wms.jpl.nasa.gov/wms.cgi", 
+     *                                    {
+     *                                        layers: "modis,global_mosaic",
+     *                                        transparent: true
+     *                                    }, {
+     *                                        opacity: 0.5,
+     *                                        singleTile: true
+     *                                    });
+     * (end)
+     * Note that by default, a WMS layer is configured as baseLayer. Setting
+     * the "transparent" param to true will apply some magic (see <noMagic>).
+     * The default image format changes from image/jpeg to image/png, and the
+     * layer is not configured as baseLayer.
+     *
+     * Parameters:
+     * name - {String} A name for the layer
+     * url - {String} Base url for the WMS
+     *                (e.g. http://wms.jpl.nasa.gov/wms.cgi)
+     * params - {Object} An object with key/value pairs representing the
+     *                   GetMap query string parameters and parameter values.
+     * options - {Object} Hashtable of extra options to tag onto the layer.
+     *     These options include all properties listed above, plus the ones
+     *     inherited from superclasses.
+     */
+    initialize: function(name, url, params, options) {
+        var newArguments = [];
+        //uppercase params
+        params = OpenLayers.Util.upperCaseObject(params);
+        if (parseFloat(params.VERSION) >= 1.3 && !params.EXCEPTIONS) {
+            params.EXCEPTIONS = "INIMAGE";
+        } 
+        newArguments.push(name, url, params, options);
+        OpenLayers.Layer.Grid.prototype.initialize.apply(this, newArguments);
+        OpenLayers.Util.applyDefaults(
+                       this.params, 
+                       OpenLayers.Util.upperCaseObject(this.DEFAULT_PARAMS)
+                       );
+
+
+        //layer is transparent        
+        if (!this.noMagic && this.params.TRANSPARENT && 
+            this.params.TRANSPARENT.toString().toLowerCase() == "true") {
+            
+            // unless explicitly set in options, make layer an overlay
+            if ( (options == null) || (!options.isBaseLayer) ) {
+                this.isBaseLayer = false;
+            } 
+            
+            // jpegs can never be transparent, so intelligently switch the 
+            //  format, depending on the browser's capabilities
+            if (this.params.FORMAT == "image/jpeg") {
+                this.params.FORMAT = OpenLayers.Util.alphaHack() ? "image/gif"
+                                                                 : "image/png";
+            }
+        }
+
+    },    
+
+    /**
+     * Method: clone
+     * Create a clone of this layer
+     *
+     * Returns:
+     * {<OpenLayers.Layer.WMS>} An exact clone of this layer
+     */
+    clone: function (obj) {
+        
+        if (obj == null) {
+            obj = new OpenLayers.Layer.WMS(this.name,
+                                           this.url,
+                                           this.params,
+                                           this.getOptions());
+        }
+
+        //get all additions from superclasses
+        obj = OpenLayers.Layer.Grid.prototype.clone.apply(this, [obj]);
+
+        // copy/set any non-init, non-simple values here
+
+        return obj;
+    },    
+    
+    /**
+     * APIMethod: reverseAxisOrder
+     * Returns true if the axis order is reversed for the WMS version and
+     * projection of the layer.
+     * 
+     * Returns:
+     * {Boolean} true if the axis order is reversed, false otherwise.
+     */
+    reverseAxisOrder: function() {
+        var projCode = this.projection.getCode();
+        return parseFloat(this.params.VERSION) >= 1.3 && 
+            !!(this.yx[projCode] || (OpenLayers.Projection.defaults[projCode] && 
+            OpenLayers.Projection.defaults[projCode].yx));
+    },
+    
+    /**
+     * Method: getURL
+     * Return a GetMap query string for this layer
+     *
+     * Parameters:
+     * bounds - {<OpenLayers.Bounds>} A bounds representing the bbox for the
+     *                                request.
+     *
+     * Returns:
+     * {String} A string with the layer's url and parameters and also the
+     *          passed-in bounds and appropriate tile size specified as 
+     *          parameters.
+     */
+    getURL: function (bounds) {
+        bounds = this.adjustBounds(bounds);
+        
+        var imageSize = this.getImageSize();
+        var newParams = {};
+        // WMS 1.3 introduced axis order
+        var reverseAxisOrder = this.reverseAxisOrder();
+        newParams.BBOX = this.encodeBBOX ?
+            bounds.toBBOX(null, reverseAxisOrder) :
+            bounds.toArray(reverseAxisOrder);
+        newParams.WIDTH = imageSize.w;
+        newParams.HEIGHT = imageSize.h;
+        var requestString = this.getFullRequestString(newParams);
+        return requestString;
+    },
+
+    /**
+     * APIMethod: mergeNewParams
+     * Catch changeParams and uppercase the new params to be merged in
+     *     before calling changeParams on the super class.
+     * 
+     *     Once params have been changed, the tiles will be reloaded with
+     *     the new parameters.
+     * 
+     * Parameters:
+     * newParams - {Object} Hashtable of new params to use
+     */
+    mergeNewParams:function(newParams) {
+        var upperParams = OpenLayers.Util.upperCaseObject(newParams);
+        var newArguments = [upperParams];
+        return OpenLayers.Layer.Grid.prototype.mergeNewParams.apply(this, 
+                                                             newArguments);
+    },
+
+    /** 
+     * APIMethod: getFullRequestString
+     * Combine the layer's url with its params and these newParams. 
+     *   
+     *     Add the SRS parameter from projection -- this is probably
+     *     more eloquently done via a setProjection() method, but this 
+     *     works for now and always.
+     *
+     * Parameters:
+     * newParams - {Object}
+     * altUrl - {String} Use this as the url instead of the layer's url
+     * 
+     * Returns:
+     * {String} 
+     */
+    getFullRequestString:function(newParams, altUrl) {
+        var mapProjection = this.map.getProjectionObject();
+        var projectionCode = this.projection && this.projection.equals(mapProjection) ?
+            this.projection.getCode() :
+            mapProjection.getCode();
+        var value = (projectionCode == "none") ? null : projectionCode;
+        if (parseFloat(this.params.VERSION) >= 1.3) {
+            this.params.CRS = value;
+        } else {
+            this.params.SRS = value;
+        }
+        
+        if (typeof this.params.TRANSPARENT == "boolean") {
+            newParams.TRANSPARENT = this.params.TRANSPARENT ? "TRUE" : "FALSE";
+        }
+
+        return OpenLayers.Layer.Grid.prototype.getFullRequestString.apply(
+                                                    this, arguments);
+    },
+
+    CLASS_NAME: "OpenLayers.Layer.WMS"
+});
+/* ======================================================================
+    OpenLayers/Renderer/SVG.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Renderer/Elements.js
+ */
+
+/**
+ * Class: OpenLayers.Renderer.SVG
+ * 
+ * Inherits:
+ *  - <OpenLayers.Renderer.Elements>
+ */
+OpenLayers.Renderer.SVG = OpenLayers.Class(OpenLayers.Renderer.Elements, {
+
+    /** 
+     * Property: xmlns
+     * {String}
+     */
+    xmlns: "http://www.w3.org/2000/svg",
+    
+    /**
+     * Property: xlinkns
+     * {String}
+     */
+    xlinkns: "http://www.w3.org/1999/xlink",
+
+    /**
+     * Constant: MAX_PIXEL
+     * {Integer} Firefox has a limitation where values larger or smaller than  
+     *           about 15000 in an SVG document lock the browser up. This 
+     *           works around it.
+     */
+    MAX_PIXEL: 15000,
+
+    /**
+     * Property: translationParameters
+     * {Object} Hash with "x" and "y" properties
+     */
+    translationParameters: null,
+    
+    /**
+     * Property: symbolMetrics
+     * {Object} Cache for symbol metrics according to their svg coordinate
+     *     space. This is an object keyed by the symbol's id, and values are
+     *     an array of [width, centerX, centerY].
+     */
+    symbolMetrics: null,
+    
+    /**
+     * Constructor: OpenLayers.Renderer.SVG
+     * 
+     * Parameters:
+     * containerID - {String}
+     */
+    initialize: function(containerID) {
+        if (!this.supported()) { 
+            return; 
+        }
+        OpenLayers.Renderer.Elements.prototype.initialize.apply(this, 
+                                                                arguments);
+        this.translationParameters = {x: 0, y: 0};
+        
+        this.symbolMetrics = {};
+    },
+
+    /**
+     * APIMethod: supported
+     * 
+     * Returns:
+     * {Boolean} Whether or not the browser supports the SVG renderer
+     */
+    supported: function() {
+        var svgFeature = "http://www.w3.org/TR/SVG11/feature#";
+        return (document.implementation && 
+           (document.implementation.hasFeature("org.w3c.svg", "1.0") || 
+            document.implementation.hasFeature(svgFeature + "SVG", "1.1") || 
+            document.implementation.hasFeature(svgFeature + "BasicStructure", "1.1") ));
+    },    
+
+    /**
+     * Method: inValidRange
+     * See #669 for more information
+     *
+     * Parameters:
+     * x      - {Integer}
+     * y      - {Integer}
+     * xyOnly - {Boolean} whether or not to just check for x and y, which means
+     *     to not take the current translation parameters into account if true.
+     * 
+     * Returns:
+     * {Boolean} Whether or not the 'x' and 'y' coordinates are in the  
+     *           valid range.
+     */ 
+    inValidRange: function(x, y, xyOnly) {
+        var left = x + (xyOnly ? 0 : this.translationParameters.x);
+        var top = y + (xyOnly ? 0 : this.translationParameters.y);
+        return (left >= -this.MAX_PIXEL && left <= this.MAX_PIXEL &&
+                top >= -this.MAX_PIXEL && top <= this.MAX_PIXEL);
+    },
+
+    /**
+     * Method: setExtent
+     * 
+     * Parameters:
+     * extent - {<OpenLayers.Bounds>}
+     * resolutionChanged - {Boolean}
+     * 
+     * Returns:
+     * {Boolean} true to notify the layer that the new extent does not exceed
+     *     the coordinate range, and the features will not need to be redrawn.
+     *     False otherwise.
+     */
+    setExtent: function(extent, resolutionChanged) {
+        var coordSysUnchanged = OpenLayers.Renderer.Elements.prototype.setExtent.apply(this, arguments);
+        
+        var resolution = this.getResolution(),
+            left = -extent.left / resolution,
+            top = extent.top / resolution;
+
+        // If the resolution has changed, start over changing the corner, because
+        // the features will redraw.
+        if (resolutionChanged) {
+            this.left = left;
+            this.top = top;
+            // Set the viewbox
+            var extentString = "0 0 " + this.size.w + " " + this.size.h;
+
+            this.rendererRoot.setAttributeNS(null, "viewBox", extentString);
+            this.translate(this.xOffset, 0);
+            return true;
+        } else {
+            var inRange = this.translate(left - this.left + this.xOffset, top - this.top);
+            if (!inRange) {
+                // recenter the coordinate system
+                this.setExtent(extent, true);
+            }
+            return coordSysUnchanged && inRange;
+        }
+    },
+    
+    /**
+     * Method: translate
+     * Transforms the SVG coordinate system
+     * 
+     * Parameters:
+     * x - {Float}
+     * y - {Float}
+     * 
+     * Returns:
+     * {Boolean} true if the translation parameters are in the valid coordinates
+     *     range, false otherwise.
+     */
+    translate: function(x, y) {
+        if (!this.inValidRange(x, y, true)) {
+            return false;
+        } else {
+            var transformString = "";
+            if (x || y) {
+                transformString = "translate(" + x + "," + y + ")";
+            }
+            this.root.setAttributeNS(null, "transform", transformString);
+            this.translationParameters = {x: x, y: y};
+            return true;
+        }
+    },
+
+    /**
+     * Method: setSize
+     * Sets the size of the drawing surface.
+     * 
+     * Parameters:
+     * size - {<OpenLayers.Size>} The size of the drawing surface
+     */
+    setSize: function(size) {
+        OpenLayers.Renderer.prototype.setSize.apply(this, arguments);
+        
+        this.rendererRoot.setAttributeNS(null, "width", this.size.w);
+        this.rendererRoot.setAttributeNS(null, "height", this.size.h);
+    },
+
+    /** 
+     * Method: getNodeType 
+     * 
+     * Parameters:
+     * geometry - {<OpenLayers.Geometry>}
+     * style - {Object}
+     * 
+     * Returns:
+     * {String} The corresponding node type for the specified geometry
+     */
+    getNodeType: function(geometry, style) {
+        var nodeType = null;
+        switch (geometry.CLASS_NAME) {
+            case "OpenLayers.Geometry.Point":
+                if (style.externalGraphic) {
+                    nodeType = "image";
+                } else if (this.isComplexSymbol(style.graphicName)) {
+                    nodeType = "svg";
+                } else {
+                    nodeType = "circle";
+                }
+                break;
+            case "OpenLayers.Geometry.Rectangle":
+                nodeType = "rect";
+                break;
+            case "OpenLayers.Geometry.LineString":
+                nodeType = "polyline";
+                break;
+            case "OpenLayers.Geometry.LinearRing":
+                nodeType = "polygon";
+                break;
+            case "OpenLayers.Geometry.Polygon":
+            case "OpenLayers.Geometry.Curve":
+                nodeType = "path";
+                break;
+            default:
+                break;
+        }
+        return nodeType;
+    },
+
+    /** 
+     * Method: setStyle
+     * Use to set all the style attributes to a SVG node.
+     * 
+     * Takes care to adjust stroke width and point radius to be
+     * resolution-relative
+     *
+     * Parameters:
+     * node - {SVGDomElement} An SVG element to decorate
+     * style - {Object}
+     * options - {Object} Currently supported options include 
+     *                              'isFilled' {Boolean} and
+     *                              'isStroked' {Boolean}
+     */
+    setStyle: function(node, style, options) {
+        style = style  || node._style;
+        options = options || node._options;
+
+        var title = style.title || style.graphicTitle;
+        if (title) {
+            node.setAttributeNS(null, "title", title);
+            //Standards-conformant SVG
+            // Prevent duplicate nodes. See issue https://github.com/openlayers/openlayers/issues/92 
+            var titleNode = node.getElementsByTagName("title");
+            if (titleNode.length > 0) {
+                titleNode[0].firstChild.textContent = title;
+            } else {
+                var label = this.nodeFactory(null, "title");
+                label.textContent = title;
+                node.appendChild(label);
+            }
+        }
+
+        var r = parseFloat(node.getAttributeNS(null, "r"));
+        var widthFactor = 1;
+        var pos;
+        if (node._geometryClass == "OpenLayers.Geometry.Point" && r) {
+            node.style.visibility = "";
+            if (style.graphic === false) {
+                node.style.visibility = "hidden";
+            } else if (style.externalGraphic) {
+                pos = this.getPosition(node);
+                if (style.graphicWidth && style.graphicHeight) {
+                  node.setAttributeNS(null, "preserveAspectRatio", "none");
+                }
+                var width = style.graphicWidth || style.graphicHeight;
+                var height = style.graphicHeight || style.graphicWidth;
+                width = width ? width : style.pointRadius*2;
+                height = height ? height : style.pointRadius*2;
+                var xOffset = (style.graphicXOffset != undefined) ?
+                    style.graphicXOffset : -(0.5 * width);
+                var yOffset = (style.graphicYOffset != undefined) ?
+                    style.graphicYOffset : -(0.5 * height);
+
+                var opacity = style.graphicOpacity || style.fillOpacity;
+                
+                node.setAttributeNS(null, "x", (pos.x + xOffset).toFixed());
+                node.setAttributeNS(null, "y", (pos.y + yOffset).toFixed());
+                node.setAttributeNS(null, "width", width);
+                node.setAttributeNS(null, "height", height);
+                node.setAttributeNS(this.xlinkns, "xlink:href", style.externalGraphic);
+                node.setAttributeNS(null, "style", "opacity: "+opacity);
+                node.onclick = OpenLayers.Event.preventDefault;
+            } else if (this.isComplexSymbol(style.graphicName)) {
+                // the symbol viewBox is three times as large as the symbol
+                var offset = style.pointRadius * 3;
+                var size = offset * 2;
+                var src = this.importSymbol(style.graphicName);
+                pos = this.getPosition(node);
+                widthFactor = this.symbolMetrics[src.id][0] * 3 / size;
+                
+                // remove the node from the dom before we modify it. This
+                // prevents various rendering issues in Safari and FF
+                var parent = node.parentNode;
+                var nextSibling = node.nextSibling;
+                if(parent) {
+                    parent.removeChild(node);
+                }
+                
+                // The more appropriate way to implement this would be use/defs,
+                // but due to various issues in several browsers, it is safer to
+                // copy the symbols instead of referencing them. 
+                // See e.g. ticket http://trac.osgeo.org/openlayers/ticket/2985 
+                // and this email thread
+                // http://osgeo-org.1803224.n2.nabble.com/Select-Control-Ctrl-click-on-Feature-with-a-graphicName-opens-new-browser-window-tc5846039.html
+                node.firstChild && node.removeChild(node.firstChild);
+                node.appendChild(src.firstChild.cloneNode(true));
+                node.setAttributeNS(null, "viewBox", src.getAttributeNS(null, "viewBox"));
+                
+                node.setAttributeNS(null, "width", size);
+                node.setAttributeNS(null, "height", size);
+                node.setAttributeNS(null, "x", pos.x - offset);
+                node.setAttributeNS(null, "y", pos.y - offset);
+                
+                // now that the node has all its new properties, insert it
+                // back into the dom where it was
+                if(nextSibling) {
+                    parent.insertBefore(node, nextSibling);
+                } else if(parent) {
+                    parent.appendChild(node);
+                }
+            } else {
+                node.setAttributeNS(null, "r", style.pointRadius);
+            }
+
+            var rotation = style.rotation;
+            
+            if ((rotation !== undefined || node._rotation !== undefined) && pos) {
+                node._rotation = rotation;
+                rotation |= 0;
+                if (node.nodeName !== "svg") { 
+                    node.setAttributeNS(null, "transform", 
+                        "rotate(" + rotation + " " + pos.x + " " + 
+                        pos.y + ")"); 
+                } else {
+                    var metrics = this.symbolMetrics[src.id];
+                    node.firstChild.setAttributeNS(null, "transform", "rotate(" 
+                        + rotation + " " 
+                        + metrics[1] + " "
+                        + metrics[2] + ")");
+                }
+            }
+        }
+        
+        if (options.isFilled) {
+            node.setAttributeNS(null, "fill", style.fillColor);
+            node.setAttributeNS(null, "fill-opacity", style.fillOpacity);
+        } else {
+            node.setAttributeNS(null, "fill", "none");
+        }
+
+        if (options.isStroked) {
+            node.setAttributeNS(null, "stroke", style.strokeColor);
+            node.setAttributeNS(null, "stroke-opacity", style.strokeOpacity);
+            node.setAttributeNS(null, "stroke-width", style.strokeWidth * widthFactor);
+            node.setAttributeNS(null, "stroke-linecap", style.strokeLinecap || "round");
+            // Hard-coded linejoin for now, to make it look the same as in VML.
+            // There is no strokeLinejoin property yet for symbolizers.
+            node.setAttributeNS(null, "stroke-linejoin", "round");
+            style.strokeDashstyle && node.setAttributeNS(null,
+                "stroke-dasharray", this.dashStyle(style, widthFactor));
+        } else {
+            node.setAttributeNS(null, "stroke", "none");
+        }
+        
+        if (style.pointerEvents) {
+            node.setAttributeNS(null, "pointer-events", style.pointerEvents);
+        }
+                
+        if (style.cursor != null) {
+            node.setAttributeNS(null, "cursor", style.cursor);
+        }
+        
+        return node;
+    },
+
+    /** 
+     * Method: dashStyle
+     * 
+     * Parameters:
+     * style - {Object}
+     * widthFactor - {Number}
+     * 
+     * Returns:
+     * {String} A SVG compliant 'stroke-dasharray' value
+     */
+    dashStyle: function(style, widthFactor) {
+        var w = style.strokeWidth * widthFactor;
+        var str = style.strokeDashstyle;
+        switch (str) {
+            case 'solid':
+                return 'none';
+            case 'dot':
+                return [1, 4 * w].join();
+            case 'dash':
+                return [4 * w, 4 * w].join();
+            case 'dashdot':
+                return [4 * w, 4 * w, 1, 4 * w].join();
+            case 'longdash':
+                return [8 * w, 4 * w].join();
+            case 'longdashdot':
+                return [8 * w, 4 * w, 1, 4 * w].join();
+            default:
+                return OpenLayers.String.trim(str).replace(/\s+/g, ",");
+        }
+    },
+    
+    /** 
+     * Method: createNode
+     * 
+     * Parameters:
+     * type - {String} Kind of node to draw
+     * id - {String} Id for node
+     * 
+     * Returns:
+     * {DOMElement} A new node of the given type and id
+     */
+    createNode: function(type, id) {
+        var node = document.createElementNS(this.xmlns, type);
+        if (id) {
+            node.setAttributeNS(null, "id", id);
+        }
+        return node;    
+    },
+    
+    /** 
+     * Method: nodeTypeCompare
+     * 
+     * Parameters:
+     * node - {SVGDomElement} An SVG element
+     * type - {String} Kind of node
+     * 
+     * Returns:
+     * {Boolean} Whether or not the specified node is of the specified type
+     */
+    nodeTypeCompare: function(node, type) {
+        return (type == node.nodeName);
+    },
+   
+    /**
+     * Method: createRenderRoot
+     * 
+     * Returns:
+     * {DOMElement} The specific render engine's root element
+     */
+    createRenderRoot: function() {
+        var svg = this.nodeFactory(this.container.id + "_svgRoot", "svg");
+        svg.style.display = "block";
+        return svg;
+    },
+
+    /**
+     * Method: createRoot
+     * 
+     * Parameters:
+     * suffix - {String} suffix to append to the id
+     * 
+     * Returns:
+     * {DOMElement}
+     */
+    createRoot: function(suffix) {
+        return this.nodeFactory(this.container.id + suffix, "g");
+    },
+
+    /**
+     * Method: createDefs
+     *
+     * Returns:
+     * {DOMElement} The element to which we'll add the symbol definitions
+     */
+    createDefs: function() {
+        var defs = this.nodeFactory(this.container.id + "_defs", "defs");
+        this.rendererRoot.appendChild(defs);
+        return defs;
+    },
+
+    /**************************************
+     *                                    *
+     *     GEOMETRY DRAWING FUNCTIONS     *
+     *                                    *
+     **************************************/
+
+    /**
+     * Method: drawPoint
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or false if the renderer could not draw the point
+     */ 
+    drawPoint: function(node, geometry) {
+        return this.drawCircle(node, geometry, 1);
+    },
+
+    /**
+     * Method: drawCircle
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * radius - {Float}
+     * 
+     * Returns:
+     * {DOMElement} or false if the renderer could not draw the circle
+     */
+    drawCircle: function(node, geometry, radius) {
+        var resolution = this.getResolution();
+        var x = ((geometry.x - this.featureDx) / resolution + this.left);
+        var y = (this.top - geometry.y / resolution);
+
+        if (this.inValidRange(x, y)) { 
+            node.setAttributeNS(null, "cx", x);
+            node.setAttributeNS(null, "cy", y);
+            node.setAttributeNS(null, "r", radius);
+            return node;
+        } else {
+            return false;
+        }    
+            
+    },
+    
+    /**
+     * Method: drawLineString
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or null if the renderer could not draw all components of
+     *     the linestring, or false if nothing could be drawn
+     */ 
+    drawLineString: function(node, geometry) {
+        var componentsResult = this.getComponentsString(geometry.components);
+        if (componentsResult.path) {
+            node.setAttributeNS(null, "points", componentsResult.path);
+            return (componentsResult.complete ? node : null);  
+        } else {
+            return false;
+        }
+    },
+    
+    /**
+     * Method: drawLinearRing
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or null if the renderer could not draw all components
+     *     of the linear ring, or false if nothing could be drawn
+     */ 
+    drawLinearRing: function(node, geometry) {
+        var componentsResult = this.getComponentsString(geometry.components);
+        if (componentsResult.path) {
+            node.setAttributeNS(null, "points", componentsResult.path);
+            return (componentsResult.complete ? node : null);  
+        } else {
+            return false;
+        }
+    },
+    
+    /**
+     * Method: drawPolygon
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or null if the renderer could not draw all components
+     *     of the polygon, or false if nothing could be drawn
+     */ 
+    drawPolygon: function(node, geometry) {
+        var d = "";
+        var draw = true;
+        var complete = true;
+        var linearRingResult, path;
+        for (var j=0, len=geometry.components.length; j<len; j++) {
+            d += " M";
+            linearRingResult = this.getComponentsString(
+                geometry.components[j].components, " ");
+            path = linearRingResult.path;
+            if (path) {
+                d += " " + path;
+                complete = linearRingResult.complete && complete;
+            } else {
+                draw = false;
+            }
+        }
+        d += " z";
+        if (draw) {
+            node.setAttributeNS(null, "d", d);
+            node.setAttributeNS(null, "fill-rule", "evenodd");
+            return complete ? node : null;
+        } else {
+            return false;
+        }    
+    },
+    
+    /**
+     * Method: drawRectangle
+     * This method is only called by the renderer itself.
+     * 
+     * Parameters: 
+     * node - {DOMElement}
+     * geometry - {<OpenLayers.Geometry>}
+     * 
+     * Returns:
+     * {DOMElement} or false if the renderer could not draw the rectangle
+     */ 
+    drawRectangle: function(node, geometry) {
+        var resolution = this.getResolution();
+        var x = ((geometry.x - this.featureDx) / resolution + this.left);
+        var y = (this.top - geometry.y / resolution);
+
+        if (this.inValidRange(x, y)) { 
+            node.setAttributeNS(null, "x", x);
+            node.setAttributeNS(null, "y", y);
+            node.setAttributeNS(null, "width", geometry.width / resolution);
+            node.setAttributeNS(null, "height", geometry.height / resolution);
+            return node;
+        } else {
+            return false;
+        }
+    },
+    
+    /**
+     * Method: drawText
+     * This method is only called by the renderer itself.
+     *
+     * Parameters:
+     * featureId - {String}
+     * style -
+     * location - {<OpenLayers.Geometry.Point>}
+     */
+    drawText: function(featureId, style, location) {
+        var drawOutline = (!!style.labelOutlineWidth);
+        // First draw text in halo color and size and overlay the
+        // normal text afterwards
+        if (drawOutline) {
+            var outlineStyle = OpenLayers.Util.extend({}, style);
+            outlineStyle.fontColor = outlineStyle.labelOutlineColor;
+            outlineStyle.fontStrokeColor = outlineStyle.labelOutlineColor;
+            outlineStyle.fontStrokeWidth = style.labelOutlineWidth;
+            if (style.labelOutlineOpacity) {
+                outlineStyle.fontOpacity = style.labelOutlineOpacity;
+            }
+            delete outlineStyle.labelOutlineWidth;
+            this.drawText(featureId, outlineStyle, location);
+        }
+
+        var resolution = this.getResolution();
+
+        var x = ((location.x - this.featureDx) / resolution + this.left);
+        var y = (location.y / resolution - this.top);
+
+        var suffix = (drawOutline)?this.LABEL_OUTLINE_SUFFIX:this.LABEL_ID_SUFFIX;
+        var label = this.nodeFactory(featureId + suffix, "text");
+
+        label.setAttributeNS(null, "x", x);
+        label.setAttributeNS(null, "y", -y);
+
+        if (style.fontColor) {
+            label.setAttributeNS(null, "fill", style.fontColor);
+        }
+        if (style.fontStrokeColor) {
+            label.setAttributeNS(null, "stroke", style.fontStrokeColor);
+        }
+        if (style.fontStrokeWidth) {
+            label.setAttributeNS(null, "stroke-width", style.fontStrokeWidth);
+        }
+        if (style.fontOpacity) {
+            label.setAttributeNS(null, "opacity", style.fontOpacity);
+        }
+        if (style.fontFamily) {
+            label.setAttributeNS(null, "font-family", style.fontFamily);
+        }
+        if (style.fontSize) {
+            label.setAttributeNS(null, "font-size", style.fontSize);
+        }
+        if (style.fontWeight) {
+            label.setAttributeNS(null, "font-weight", style.fontWeight);
+        }
+        if (style.fontStyle) {
+            label.setAttributeNS(null, "font-style", style.fontStyle);
+        }
+        if (style.labelSelect === true) {
+            label.setAttributeNS(null, "pointer-events", "visible");
+            label._featureId = featureId;
+        } else {
+            label.setAttributeNS(null, "pointer-events", "none");
+        }
+        var align = style.labelAlign || OpenLayers.Renderer.defaultSymbolizer.labelAlign;
+        label.setAttributeNS(null, "text-anchor",
+            OpenLayers.Renderer.SVG.LABEL_ALIGN[align[0]] || "middle");
+
+        if (OpenLayers.IS_GECKO === true) {
+            label.setAttributeNS(null, "dominant-baseline",
+                OpenLayers.Renderer.SVG.LABEL_ALIGN[align[1]] || "central");
+        }
+
+        var labelRows = style.label.split('\n');
+        var numRows = labelRows.length;
+        while (label.childNodes.length > numRows) {
+            label.removeChild(label.lastChild);
+        }
+        for (var i = 0; i < numRows; i++) {
+            var tspan = this.nodeFactory(featureId + suffix + "_tspan_" + i, "tspan");
+            if (style.labelSelect === true) {
+                tspan._featureId = featureId;
+                tspan._geometry = location;
+                tspan._geometryClass = location.CLASS_NAME;
+            }
+            if (OpenLayers.IS_GECKO === false) {
+                tspan.setAttributeNS(null, "baseline-shift",
+                    OpenLayers.Renderer.SVG.LABEL_VSHIFT[align[1]] || "-35%");
+            }
+            tspan.setAttribute("x", x);
+            if (i == 0) {
+                var vfactor = OpenLayers.Renderer.SVG.LABEL_VFACTOR[align[1]];
+                if (vfactor == null) {
+                     vfactor = -.5;
+                }
+                tspan.setAttribute("dy", (vfactor*(numRows-1)) + "em");
+            } else {
+                tspan.setAttribute("dy", "1em");
+            }
+            tspan.textContent = (labelRows[i] === '') ? ' ' : labelRows[i];
+            if (!tspan.parentNode) {
+                label.appendChild(tspan);
+            }
+        }
+
+        if (!label.parentNode) {
+            this.textRoot.appendChild(label);
+        }
+    },
+    
+    /** 
+     * Method: getComponentString
+     * 
+     * Parameters:
+     * components - {Array(<OpenLayers.Geometry.Point>)} Array of points
+     * separator - {String} character between coordinate pairs. Defaults to ","
+     * 
+     * Returns:
+     * {Object} hash with properties "path" (the string created from the
+     *     components and "complete" (false if the renderer was unable to
+     *     draw all components)
+     */
+    getComponentsString: function(components, separator) {
+        var renderCmp = [];
+        var complete = true;
+        var len = components.length;
+        var strings = [];
+        var str, component;
+        for(var i=0; i<len; i++) {
+            component = components[i];
+            renderCmp.push(component);
+            str = this.getShortString(component);
+            if (str) {
+                strings.push(str);
+            } else {
+                // The current component is outside the valid range. Let's
+                // see if the previous or next component is inside the range.
+                // If so, add the coordinate of the intersection with the
+                // valid range bounds.
+                if (i > 0) {
+                    if (this.getShortString(components[i - 1])) {
+                        strings.push(this.clipLine(components[i],
+                            components[i-1]));
+                    }
+                }
+                if (i < len - 1) {
+                    if (this.getShortString(components[i + 1])) {
+                        strings.push(this.clipLine(components[i],
+                            components[i+1]));
+                    }
+                }
+                complete = false;
+            }
+        }
+
+        return {
+            path: strings.join(separator || ","),
+            complete: complete
+        };
+    },
+    
+    /**
+     * Method: clipLine
+     * Given two points (one inside the valid range, and one outside),
+     * clips the line betweeen the two points so that the new points are both
+     * inside the valid range.
+     * 
+     * Parameters:
+     * badComponent - {<OpenLayers.Geometry.Point>} original geometry of the
+     *     invalid point
+     * goodComponent - {<OpenLayers.Geometry.Point>} original geometry of the
+     *     valid point
+     * Returns
+     * {String} the SVG coordinate pair of the clipped point (like
+     *     getShortString), or an empty string if both passed componets are at
+     *     the same point.
+     */
+    clipLine: function(badComponent, goodComponent) {
+        if (goodComponent.equals(badComponent)) {
+            return "";
+        }
+        var resolution = this.getResolution();
+        var maxX = this.MAX_PIXEL - this.translationParameters.x;
+        var maxY = this.MAX_PIXEL - this.translationParameters.y;
+        var x1 = (goodComponent.x - this.featureDx) / resolution + this.left;
+        var y1 = this.top - goodComponent.y / resolution;
+        var x2 = (badComponent.x - this.featureDx) / resolution + this.left;
+        var y2 = this.top - badComponent.y / resolution;
+        var k;
+        if (x2 < -maxX || x2 > maxX) {
+            k = (y2 - y1) / (x2 - x1);
+            x2 = x2 < 0 ? -maxX : maxX;
+            y2 = y1 + (x2 - x1) * k;
+        }
+        if (y2 < -maxY || y2 > maxY) {
+            k = (x2 - x1) / (y2 - y1);
+            y2 = y2 < 0 ? -maxY : maxY;
+            x2 = x1 + (y2 - y1) * k;
+        }
+        return x2 + "," + y2;
+    },
+
+    /** 
+     * Method: getShortString
+     * 
+     * Parameters:
+     * point - {<OpenLayers.Geometry.Point>}
+     * 
+     * Returns:
+     * {String} or false if point is outside the valid range
+     */
+    getShortString: function(point) {
+        var resolution = this.getResolution();
+        var x = ((point.x - this.featureDx) / resolution + this.left);
+        var y = (this.top - point.y / resolution);
+
+        if (this.inValidRange(x, y)) { 
+            return x + "," + y;
+        } else {
+            return false;
+        }
+    },
+    
+    /**
+     * Method: getPosition
+     * Finds the position of an svg node.
+     * 
+     * Parameters:
+     * node - {DOMElement}
+     * 
+     * Returns:
+     * {Object} hash with x and y properties, representing the coordinates
+     *     within the svg coordinate system
+     */
+    getPosition: function(node) {
+        return({
+            x: parseFloat(node.getAttributeNS(null, "cx")),
+            y: parseFloat(node.getAttributeNS(null, "cy"))
+        });
+    },
+
+    /**
+     * Method: importSymbol
+     * add a new symbol definition from the rendererer's symbol hash
+     * 
+     * Parameters:
+     * graphicName - {String} name of the symbol to import
+     * 
+     * Returns:
+     * {DOMElement} - the imported symbol
+     */      
+    importSymbol: function (graphicName)  {
+        if (!this.defs) {
+            // create svg defs tag
+            this.defs = this.createDefs();
+        }
+        var id = this.container.id + "-" + graphicName;
+        
+        // check if symbol already exists in the defs
+        var existing = document.getElementById(id);
+        if (existing != null) {
+            return existing;
+        }
+        
+        var symbol = OpenLayers.Renderer.symbol[graphicName];
+        if (!symbol) {
+            throw new Error(graphicName + ' is not a valid symbol name');
+        }
+
+        var symbolNode = this.nodeFactory(id, "symbol");
+        var node = this.nodeFactory(null, "polygon");
+        symbolNode.appendChild(node);
+        var symbolExtent = new OpenLayers.Bounds(
+                                    Number.MAX_VALUE, Number.MAX_VALUE, 0, 0);
+
+        var points = [];
+        var x,y;
+        for (var i=0; i<symbol.length; i=i+2) {
+            x = symbol[i];
+            y = symbol[i+1];
+            symbolExtent.left = Math.min(symbolExtent.left, x);
+            symbolExtent.bottom = Math.min(symbolExtent.bottom, y);
+            symbolExtent.right = Math.max(symbolExtent.right, x);
+            symbolExtent.top = Math.max(symbolExtent.top, y);
+            points.push(x, ",", y);
+        }
+        
+        node.setAttributeNS(null, "points", points.join(" "));
+        
+        var width = symbolExtent.getWidth();
+        var height = symbolExtent.getHeight();
+        // create a viewBox three times as large as the symbol itself,
+        // to allow for strokeWidth being displayed correctly at the corners.
+        var viewBox = [symbolExtent.left - width,
+                        symbolExtent.bottom - height, width * 3, height * 3];
+        symbolNode.setAttributeNS(null, "viewBox", viewBox.join(" "));
+        this.symbolMetrics[id] = [
+            Math.max(width, height),
+            symbolExtent.getCenterLonLat().lon,
+            symbolExtent.getCenterLonLat().lat
+        ];
+        
+        this.defs.appendChild(symbolNode);
+        return symbolNode;
+    },
+    
+    /**
+     * Method: getFeatureIdFromEvent
+     * 
+     * Parameters:
+     * evt - {Object} An <OpenLayers.Event> object
+     *
+     * Returns:
+     * {String} A feature id or undefined.
+     */
+    getFeatureIdFromEvent: function(evt) {
+        var featureId = OpenLayers.Renderer.Elements.prototype.getFeatureIdFromEvent.apply(this, arguments);
+        if(!featureId) {
+            var target = evt.target;
+            featureId = target.parentNode && target != this.rendererRoot ?
+                target.parentNode._featureId : undefined;
+        }
+        return featureId;
+    },
+
+    CLASS_NAME: "OpenLayers.Renderer.SVG"
+});
+
+/**
+ * Constant: OpenLayers.Renderer.SVG.LABEL_ALIGN
+ * {Object}
+ */
+OpenLayers.Renderer.SVG.LABEL_ALIGN = {
+    "l": "start",
+    "r": "end",
+    "b": "bottom",
+    "t": "hanging"
+};
+
+/**
+ * Constant: OpenLayers.Renderer.SVG.LABEL_VSHIFT
+ * {Object}
+ */
+OpenLayers.Renderer.SVG.LABEL_VSHIFT = {
+    // according to
+    // http://www.w3.org/Graphics/SVG/Test/20061213/htmlObjectHarness/full-text-align-02-b.html
+    // a baseline-shift of -70% shifts the text exactly from the
+    // bottom to the top of the baseline, so -35% moves the text to
+    // the center of the baseline.
+    "t": "-70%",
+    "b": "0"    
+};
+
+/**
+ * Constant: OpenLayers.Renderer.SVG.LABEL_VFACTOR
+ * {Object}
+ */
+OpenLayers.Renderer.SVG.LABEL_VFACTOR = {
+    "t": 0,
+    "b": -1
+};
+
+/**
+ * Function: OpenLayers.Renderer.SVG.preventDefault
+ * *Deprecated*.  Use <OpenLayers.Event.preventDefault> method instead.
+ * Used to prevent default events (especially opening images in a new tab on
+ * ctrl-click) from being executed for externalGraphic symbols
+ */
+OpenLayers.Renderer.SVG.preventDefault = function(e) {
+    OpenLayers.Event.preventDefault(e);
+};
+/* ======================================================================
+    OpenLayers/Format/JSON.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * Note:
+ * This work draws heavily from the public domain JSON serializer/deserializer
+ *     at http://www.json.org/json.js. Rewritten so that it doesn't modify
+ *     basic data prototypes.
+ */
+
+/**
+ * @requires OpenLayers/Format.js
+ */
+
+/**
+ * Class: OpenLayers.Format.JSON
+ * A parser to read/write JSON safely.  Create a new instance with the
+ *     <OpenLayers.Format.JSON> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Format>
+ */
+OpenLayers.Format.JSON = OpenLayers.Class(OpenLayers.Format, {
+    
+    /**
+     * APIProperty: indent
+     * {String} For "pretty" printing, the indent string will be used once for
+     *     each indentation level.
+     */
+    indent: "    ",
+    
+    /**
+     * APIProperty: space
+     * {String} For "pretty" printing, the space string will be used after
+     *     the ":" separating a name/value pair.
+     */
+    space: " ",
+    
+    /**
+     * APIProperty: newline
+     * {String} For "pretty" printing, the newline string will be used at the
+     *     end of each name/value pair or array item.
+     */
+    newline: "\n",
+    
+    /**
+     * Property: level
+     * {Integer} For "pretty" printing, this is incremented/decremented during
+     *     serialization.
+     */
+    level: 0,
+
+    /**
+     * Property: pretty
+     * {Boolean} Serialize with extra whitespace for structure.  This is set
+     *     by the <write> method.
+     */
+    pretty: false,
+
+    /**
+     * Property: nativeJSON
+     * {Boolean} Does the browser support native json?
+     */
+    nativeJSON: (function() {
+        return !!(window.JSON && typeof JSON.parse == "function" && typeof JSON.stringify == "function");
+    })(),
+
+    /**
+     * Constructor: OpenLayers.Format.JSON
+     * Create a new parser for JSON.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *     this instance.
+     */
+
+    /**
+     * APIMethod: read
+     * Deserialize a json string.
+     *
+     * Parameters:
+     * json - {String} A JSON string
+     * filter - {Function} A function which will be called for every key and
+     *     value at every level of the final result. Each value will be
+     *     replaced by the result of the filter function. This can be used to
+     *     reform generic objects into instances of classes, or to transform
+     *     date strings into Date objects.
+     *     
+     * Returns:
+     * {Object} An object, array, string, or number .
+     */
+    read: function(json, filter) {
+        var object;
+        if (this.nativeJSON) {
+            object = JSON.parse(json, filter);
+        } else try {
+            /**
+             * Parsing happens in three stages. In the first stage, we run the
+             *     text against a regular expression which looks for non-JSON
+             *     characters. We are especially concerned with '()' and 'new'
+             *     because they can cause invocation, and '=' because it can
+             *     cause mutation. But just to be safe, we will reject all
+             *     unexpected characters.
+             */
+            if (/^[\],:{}\s]*$/.test(json.replace(/\\["\\\/bfnrtu]/g, '@').
+                                replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').
+                                replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
+
+                /**
+                 * In the second stage we use the eval function to compile the
+                 *     text into a JavaScript structure. The '{' operator is
+                 *     subject to a syntactic ambiguity in JavaScript - it can
+                 *     begin a block or an object literal. We wrap the text in
+                 *     parens to eliminate the ambiguity.
+                 */
+                object = eval('(' + json + ')');
+
+                /**
+                 * In the optional third stage, we recursively walk the new
+                 *     structure, passing each name/value pair to a filter
+                 *     function for possible transformation.
+                 */
+                if(typeof filter === 'function') {
+                    function walk(k, v) {
+                        if(v && typeof v === 'object') {
+                            for(var i in v) {
+                                if(v.hasOwnProperty(i)) {
+                                    v[i] = walk(i, v[i]);
+                                }
+                            }
+                        }
+                        return filter(k, v);
+                    }
+                    object = walk('', object);
+                }
+            }
+        } catch(e) {
+            // Fall through if the regexp test fails.
+        }
+
+        if(this.keepData) {
+            this.data = object;
+        }
+
+        return object;
+    },
+
+    /**
+     * APIMethod: write
+     * Serialize an object into a JSON string.
+     *
+     * Parameters:
+     * value - {String} The object, array, string, number, boolean or date
+     *     to be serialized.
+     * pretty - {Boolean} Structure the output with newlines and indentation.
+     *     Default is false.
+     *
+     * Returns:
+     * {String} The JSON string representation of the input value.
+     */
+    write: function(value, pretty) {
+        this.pretty = !!pretty;
+        var json = null;
+        var type = typeof value;
+        if(this.serialize[type]) {
+            try {
+                json = (!this.pretty && this.nativeJSON) ?
+                    JSON.stringify(value) :
+                    this.serialize[type].apply(this, [value]);
+            } catch(err) {
+                OpenLayers.Console.error("Trouble serializing: " + err);
+            }
+        }
+        return json;
+    },
+    
+    /**
+     * Method: writeIndent
+     * Output an indentation string depending on the indentation level.
+     *
+     * Returns:
+     * {String} An appropriate indentation string.
+     */
+    writeIndent: function() {
+        var pieces = [];
+        if(this.pretty) {
+            for(var i=0; i<this.level; ++i) {
+                pieces.push(this.indent);
+            }
+        }
+        return pieces.join('');
+    },
+    
+    /**
+     * Method: writeNewline
+     * Output a string representing a newline if in pretty printing mode.
+     *
+     * Returns:
+     * {String} A string representing a new line.
+     */
+    writeNewline: function() {
+        return (this.pretty) ? this.newline : '';
+    },
+    
+    /**
+     * Method: writeSpace
+     * Output a string representing a space if in pretty printing mode.
+     *
+     * Returns:
+     * {String} A space.
+     */
+    writeSpace: function() {
+        return (this.pretty) ? this.space : '';
+    },
+
+    /**
+     * Property: serialize
+     * Object with properties corresponding to the serializable data types.
+     *     Property values are functions that do the actual serializing.
+     */
+    serialize: {
+        /**
+         * Method: serialize.object
+         * Transform an object into a JSON string.
+         *
+         * Parameters:
+         * object - {Object} The object to be serialized.
+         * 
+         * Returns:
+         * {String} A JSON string representing the object.
+         */
+        'object': function(object) {
+            // three special objects that we want to treat differently
+            if(object == null) {
+                return "null";
+            }
+            if(object.constructor == Date) {
+                return this.serialize.date.apply(this, [object]);
+            }
+            if(object.constructor == Array) {
+                return this.serialize.array.apply(this, [object]);
+            }
+            var pieces = ['{'];
+            this.level += 1;
+            var key, keyJSON, valueJSON;
+            
+            var addComma = false;
+            for(key in object) {
+                if(object.hasOwnProperty(key)) {
+                    // recursive calls need to allow for sub-classing
+                    keyJSON = OpenLayers.Format.JSON.prototype.write.apply(this,
+                                                    [key, this.pretty]);
+                    valueJSON = OpenLayers.Format.JSON.prototype.write.apply(this,
+                                                    [object[key], this.pretty]);
+                    if(keyJSON != null && valueJSON != null) {
+                        if(addComma) {
+                            pieces.push(',');
+                        }
+                        pieces.push(this.writeNewline(), this.writeIndent(),
+                                    keyJSON, ':', this.writeSpace(), valueJSON);
+                        addComma = true;
+                    }
+                }
+            }
+            
+            this.level -= 1;
+            pieces.push(this.writeNewline(), this.writeIndent(), '}');
+            return pieces.join('');
+        },
+        
+        /**
+         * Method: serialize.array
+         * Transform an array into a JSON string.
+         *
+         * Parameters:
+         * array - {Array} The array to be serialized
+         * 
+         * Returns:
+         * {String} A JSON string representing the array.
+         */
+        'array': function(array) {
+            var json;
+            var pieces = ['['];
+            this.level += 1;
+    
+            for(var i=0, len=array.length; i<len; ++i) {
+                // recursive calls need to allow for sub-classing
+                json = OpenLayers.Format.JSON.prototype.write.apply(this,
+                                                    [array[i], this.pretty]);
+                if(json != null) {
+                    if(i > 0) {
+                        pieces.push(',');
+                    }
+                    pieces.push(this.writeNewline(), this.writeIndent(), json);
+                }
+            }
+
+            this.level -= 1;    
+            pieces.push(this.writeNewline(), this.writeIndent(), ']');
+            return pieces.join('');
+        },
+        
+        /**
+         * Method: serialize.string
+         * Transform a string into a JSON string.
+         *
+         * Parameters:
+         * string - {String} The string to be serialized
+         * 
+         * Returns:
+         * {String} A JSON string representing the string.
+         */
+        'string': function(string) {
+            // If the string contains no control characters, no quote characters, and no
+            // backslash characters, then we can simply slap some quotes around it.
+            // Otherwise we must also replace the offending characters with safe
+            // sequences.    
+            var m = {
+                '\b': '\\b',
+                '\t': '\\t',
+                '\n': '\\n',
+                '\f': '\\f',
+                '\r': '\\r',
+                '"' : '\\"',
+                '\\': '\\\\'
+            };
+            if(/["\\\x00-\x1f]/.test(string)) {
+                return '"' + string.replace(/([\x00-\x1f\\"])/g, function(a, b) {
+                    var c = m[b];
+                    if(c) {
+                        return c;
+                    }
+                    c = b.charCodeAt();
+                    return '\\u00' +
+                        Math.floor(c / 16).toString(16) +
+                        (c % 16).toString(16);
+                }) + '"';
+            }
+            return '"' + string + '"';
+        },
+
+        /**
+         * Method: serialize.number
+         * Transform a number into a JSON string.
+         *
+         * Parameters:
+         * number - {Number} The number to be serialized.
+         *
+         * Returns:
+         * {String} A JSON string representing the number.
+         */
+        'number': function(number) {
+            return isFinite(number) ? String(number) : "null";
+        },
+        
+        /**
+         * Method: serialize.boolean
+         * Transform a boolean into a JSON string.
+         *
+         * Parameters:
+         * bool - {Boolean} The boolean to be serialized.
+         * 
+         * Returns:
+         * {String} A JSON string representing the boolean.
+         */
+        'boolean': function(bool) {
+            return String(bool);
+        },
+        
+        /**
+         * Method: serialize.object
+         * Transform a date into a JSON string.
+         *
+         * Parameters:
+         * date - {Date} The date to be serialized.
+         * 
+         * Returns:
+         * {String} A JSON string representing the date.
+         */
+        'date': function(date) {    
+            function format(number) {
+                // Format integers to have at least two digits.
+                return (number < 10) ? '0' + number : number;
+            }
+            return '"' + date.getFullYear() + '-' +
+                    format(date.getMonth() + 1) + '-' +
+                    format(date.getDate()) + 'T' +
+                    format(date.getHours()) + ':' +
+                    format(date.getMinutes()) + ':' +
+                    format(date.getSeconds()) + '"';
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Format.JSON" 
+
+});     
+/* ======================================================================
+    OpenLayers/Format/GeoJSON.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Format/JSON.js
+ * @requires OpenLayers/Feature/Vector.js
+ * @requires OpenLayers/Geometry/Point.js
+ * @requires OpenLayers/Geometry/MultiPoint.js
+ * @requires OpenLayers/Geometry/LineString.js
+ * @requires OpenLayers/Geometry/MultiLineString.js
+ * @requires OpenLayers/Geometry/Polygon.js
+ * @requires OpenLayers/Geometry/MultiPolygon.js
+ * @requires OpenLayers/Console.js
+ */
+
+/**
+ * Class: OpenLayers.Format.GeoJSON
+ * Read and write GeoJSON. Create a new parser with the
+ *     <OpenLayers.Format.GeoJSON> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Format.JSON>
+ */
+OpenLayers.Format.GeoJSON = OpenLayers.Class(OpenLayers.Format.JSON, {
+
+    /**
+     * APIProperty: ignoreExtraDims
+     * {Boolean} Ignore dimensions higher than 2 when reading geometry
+     * coordinates.
+     */ 
+    ignoreExtraDims: false,
+    
+    /**
+     * Constructor: OpenLayers.Format.GeoJSON
+     * Create a new parser for GeoJSON.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *     this instance.
+     */
+
+    /**
+     * APIMethod: read
+     * Deserialize a GeoJSON string.
+     *
+     * Parameters:
+     * json - {String} A GeoJSON string
+     * type - {String} Optional string that determines the structure of
+     *     the output.  Supported values are "Geometry", "Feature", and
+     *     "FeatureCollection".  If absent or null, a default of
+     *     "FeatureCollection" is assumed.
+     * filter - {Function} A function which will be called for every key and
+     *     value at every level of the final result. Each value will be
+     *     replaced by the result of the filter function. This can be used to
+     *     reform generic objects into instances of classes, or to transform
+     *     date strings into Date objects.
+     *
+     * Returns: 
+     * {Object} The return depends on the value of the type argument. If type
+     *     is "FeatureCollection" (the default), the return will be an array
+     *     of <OpenLayers.Feature.Vector>. If type is "Geometry", the input json
+     *     must represent a single geometry, and the return will be an
+     *     <OpenLayers.Geometry>.  If type is "Feature", the input json must
+     *     represent a single feature, and the return will be an
+     *     <OpenLayers.Feature.Vector>.
+     */
+    read: function(json, type, filter) {
+        type = (type) ? type : "FeatureCollection";
+        var results = null;
+        var obj = null;
+        if (typeof json == "string") {
+            obj = OpenLayers.Format.JSON.prototype.read.apply(this,
+                                                              [json, filter]);
+        } else { 
+            obj = json;
+        }    
+        if(!obj) {
+            OpenLayers.Console.error("Bad JSON: " + json);
+        } else if(typeof(obj.type) != "string") {
+            OpenLayers.Console.error("Bad GeoJSON - no type: " + json);
+        } else if(this.isValidType(obj, type)) {
+            switch(type) {
+                case "Geometry":
+                    try {
+                        results = this.parseGeometry(obj);
+                    } catch(err) {
+                        OpenLayers.Console.error(err);
+                    }
+                    break;
+                case "Feature":
+                    try {
+                        results = this.parseFeature(obj);
+                        results.type = "Feature";
+                    } catch(err) {
+                        OpenLayers.Console.error(err);
+                    }
+                    break;
+                case "FeatureCollection":
+                    // for type FeatureCollection, we allow input to be any type
+                    results = [];
+                    switch(obj.type) {
+                        case "Feature":
+                            try {
+                                results.push(this.parseFeature(obj));
+                            } catch(err) {
+                                results = null;
+                                OpenLayers.Console.error(err);
+                            }
+                            break;
+                        case "FeatureCollection":
+                            for(var i=0, len=obj.features.length; i<len; ++i) {
+                                try {
+                                    results.push(this.parseFeature(obj.features[i]));
+                                } catch(err) {
+                                    results = null;
+                                    OpenLayers.Console.error(err);
+                                }
+                            }
+                            break;
+                        default:
+                            try {
+                                var geom = this.parseGeometry(obj);
+                                results.push(new OpenLayers.Feature.Vector(geom));
+                            } catch(err) {
+                                results = null;
+                                OpenLayers.Console.error(err);
+                            }
+                    }
+                break;
+            }
+        }
+        return results;
+    },
+    
+    /**
+     * Method: isValidType
+     * Check if a GeoJSON object is a valid representative of the given type.
+     *
+     * Returns:
+     * {Boolean} The object is valid GeoJSON object of the given type.
+     */
+    isValidType: function(obj, type) {
+        var valid = false;
+        switch(type) {
+            case "Geometry":
+                if(OpenLayers.Util.indexOf(
+                    ["Point", "MultiPoint", "LineString", "MultiLineString",
+                     "Polygon", "MultiPolygon", "Box", "GeometryCollection"],
+                    obj.type) == -1) {
+                    // unsupported geometry type
+                    OpenLayers.Console.error("Unsupported geometry type: " +
+                                              obj.type);
+                } else {
+                    valid = true;
+                }
+                break;
+            case "FeatureCollection":
+                // allow for any type to be converted to a feature collection
+                valid = true;
+                break;
+            default:
+                // for Feature types must match
+                if(obj.type == type) {
+                    valid = true;
+                } else {
+                    OpenLayers.Console.error("Cannot convert types from " +
+                                              obj.type + " to " + type);
+                }
+        }
+        return valid;
+    },
+    
+    /**
+     * Method: parseFeature
+     * Convert a feature object from GeoJSON into an
+     *     <OpenLayers.Feature.Vector>.
+     *
+     * Parameters:
+     * obj - {Object} An object created from a GeoJSON object
+     *
+     * Returns:
+     * {<OpenLayers.Feature.Vector>} A feature.
+     */
+    parseFeature: function(obj) {
+        var feature, geometry, attributes, bbox;
+        attributes = (obj.properties) ? obj.properties : {};
+        bbox = (obj.geometry && obj.geometry.bbox) || obj.bbox;
+        try {
+            geometry = this.parseGeometry(obj.geometry);
+        } catch(err) {
+            // deal with bad geometries
+            throw err;
+        }
+        feature = new OpenLayers.Feature.Vector(geometry, attributes);
+        if(bbox) {
+            feature.bounds = OpenLayers.Bounds.fromArray(bbox);
+        }
+        if(obj.id) {
+            feature.fid = obj.id;
+        }
+        return feature;
+    },
+    
+    /**
+     * Method: parseGeometry
+     * Convert a geometry object from GeoJSON into an <OpenLayers.Geometry>.
+     *
+     * Parameters:
+     * obj - {Object} An object created from a GeoJSON object
+     *
+     * Returns: 
+     * {<OpenLayers.Geometry>} A geometry.
+     */
+    parseGeometry: function(obj) {
+        if (obj == null) {
+            return null;
+        }
+        var geometry, collection = false;
+        if(obj.type == "GeometryCollection") {
+            if(!(OpenLayers.Util.isArray(obj.geometries))) {
+                throw "GeometryCollection must have geometries array: " + obj;
+            }
+            var numGeom = obj.geometries.length;
+            var components = new Array(numGeom);
+            for(var i=0; i<numGeom; ++i) {
+                components[i] = this.parseGeometry.apply(
+                    this, [obj.geometries[i]]
+                );
+            }
+            geometry = new OpenLayers.Geometry.Collection(components);
+            collection = true;
+        } else {
+            if(!(OpenLayers.Util.isArray(obj.coordinates))) {
+                throw "Geometry must have coordinates array: " + obj;
+            }
+            if(!this.parseCoords[obj.type.toLowerCase()]) {
+                throw "Unsupported geometry type: " + obj.type;
+            }
+            try {
+                geometry = this.parseCoords[obj.type.toLowerCase()].apply(
+                    this, [obj.coordinates]
+                );
+            } catch(err) {
+                // deal with bad coordinates
+                throw err;
+            }
+        }
+        // We don't reproject collections because the children are reprojected
+        // for us when they are created.
+        if (this.internalProjection && this.externalProjection && !collection) {
+            geometry.transform(this.externalProjection, 
+                               this.internalProjection); 
+        }                       
+        return geometry;
+    },
+    
+    /**
+     * Property: parseCoords
+     * Object with properties corresponding to the GeoJSON geometry types.
+     *     Property values are functions that do the actual parsing.
+     */
+    parseCoords: {
+        /**
+         * Method: parseCoords.point
+         * Convert a coordinate array from GeoJSON into an
+         *     <OpenLayers.Geometry>.
+         *
+         * Parameters:
+         * array - {Object} The coordinates array from the GeoJSON fragment.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry>} A geometry.
+         */
+        "point": function(array) {
+            if (this.ignoreExtraDims == false && 
+                  array.length != 2) {
+                    throw "Only 2D points are supported: " + array;
+            }
+            return new OpenLayers.Geometry.Point(array[0], array[1]);
+        },
+        
+        /**
+         * Method: parseCoords.multipoint
+         * Convert a coordinate array from GeoJSON into an
+         *     <OpenLayers.Geometry>.
+         *
+         * Parameters:
+         * array - {Object} The coordinates array from the GeoJSON fragment.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry>} A geometry.
+         */
+        "multipoint": function(array) {
+            var points = [];
+            var p = null;
+            for(var i=0, len=array.length; i<len; ++i) {
+                try {
+                    p = this.parseCoords["point"].apply(this, [array[i]]);
+                } catch(err) {
+                    throw err;
+                }
+                points.push(p);
+            }
+            return new OpenLayers.Geometry.MultiPoint(points);
+        },
+
+        /**
+         * Method: parseCoords.linestring
+         * Convert a coordinate array from GeoJSON into an
+         *     <OpenLayers.Geometry>.
+         *
+         * Parameters:
+         * array - {Object} The coordinates array from the GeoJSON fragment.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry>} A geometry.
+         */
+        "linestring": function(array) {
+            var points = [];
+            var p = null;
+            for(var i=0, len=array.length; i<len; ++i) {
+                try {
+                    p = this.parseCoords["point"].apply(this, [array[i]]);
+                } catch(err) {
+                    throw err;
+                }
+                points.push(p);
+            }
+            return new OpenLayers.Geometry.LineString(points);
+        },
+        
+        /**
+         * Method: parseCoords.multilinestring
+         * Convert a coordinate array from GeoJSON into an
+         *     <OpenLayers.Geometry>.
+         *
+         * Parameters:
+         * array - {Object} The coordinates array from the GeoJSON fragment.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry>} A geometry.
+         */
+        "multilinestring": function(array) {
+            var lines = [];
+            var l = null;
+            for(var i=0, len=array.length; i<len; ++i) {
+                try {
+                    l = this.parseCoords["linestring"].apply(this, [array[i]]);
+                } catch(err) {
+                    throw err;
+                }
+                lines.push(l);
+            }
+            return new OpenLayers.Geometry.MultiLineString(lines);
+        },
+        
+        /**
+         * Method: parseCoords.polygon
+         * Convert a coordinate array from GeoJSON into an
+         *     <OpenLayers.Geometry>.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry>} A geometry.
+         */
+        "polygon": function(array) {
+            var rings = [];
+            var r, l;
+            for(var i=0, len=array.length; i<len; ++i) {
+                try {
+                    l = this.parseCoords["linestring"].apply(this, [array[i]]);
+                } catch(err) {
+                    throw err;
+                }
+                r = new OpenLayers.Geometry.LinearRing(l.components);
+                rings.push(r);
+            }
+            return new OpenLayers.Geometry.Polygon(rings);
+        },
+
+        /**
+         * Method: parseCoords.multipolygon
+         * Convert a coordinate array from GeoJSON into an
+         *     <OpenLayers.Geometry>.
+         *
+         * Parameters:
+         * array - {Object} The coordinates array from the GeoJSON fragment.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry>} A geometry.
+         */
+        "multipolygon": function(array) {
+            var polys = [];
+            var p = null;
+            for(var i=0, len=array.length; i<len; ++i) {
+                try {
+                    p = this.parseCoords["polygon"].apply(this, [array[i]]);
+                } catch(err) {
+                    throw err;
+                }
+                polys.push(p);
+            }
+            return new OpenLayers.Geometry.MultiPolygon(polys);
+        },
+
+        /**
+         * Method: parseCoords.box
+         * Convert a coordinate array from GeoJSON into an
+         *     <OpenLayers.Geometry>.
+         *
+         * Parameters:
+         * array - {Object} The coordinates array from the GeoJSON fragment.
+         *
+         * Returns:
+         * {<OpenLayers.Geometry>} A geometry.
+         */
+        "box": function(array) {
+            if(array.length != 2) {
+                throw "GeoJSON box coordinates must have 2 elements";
+            }
+            return new OpenLayers.Geometry.Polygon([
+                new OpenLayers.Geometry.LinearRing([
+                    new OpenLayers.Geometry.Point(array[0][0], array[0][1]),
+                    new OpenLayers.Geometry.Point(array[1][0], array[0][1]),
+                    new OpenLayers.Geometry.Point(array[1][0], array[1][1]),
+                    new OpenLayers.Geometry.Point(array[0][0], array[1][1]),
+                    new OpenLayers.Geometry.Point(array[0][0], array[0][1])
+                ])
+            ]);
+        }
+
+    },
+
+    /**
+     * APIMethod: write
+     * Serialize a feature, geometry, array of features into a GeoJSON string.
+     *
+     * Parameters:
+     * obj - {Object} An <OpenLayers.Feature.Vector>, <OpenLayers.Geometry>,
+     *     or an array of features.
+     * pretty - {Boolean} Structure the output with newlines and indentation.
+     *     Default is false.
+     *
+     * Returns:
+     * {String} The GeoJSON string representation of the input geometry,
+     *     features, or array of features.
+     */
+    write: function(obj, pretty) {
+        var geojson = {
+            "type": null
+        };
+        if(OpenLayers.Util.isArray(obj)) {
+            geojson.type = "FeatureCollection";
+            var numFeatures = obj.length;
+            geojson.features = new Array(numFeatures);
+            for(var i=0; i<numFeatures; ++i) {
+                var element = obj[i];
+                if(!element instanceof OpenLayers.Feature.Vector) {
+                    var msg = "FeatureCollection only supports collections " +
+                              "of features: " + element;
+                    throw msg;
+                }
+                geojson.features[i] = this.extract.feature.apply(
+                    this, [element]
+                );
+            }
+        } else if (obj.CLASS_NAME.indexOf("OpenLayers.Geometry") == 0) {
+            geojson = this.extract.geometry.apply(this, [obj]);
+        } else if (obj instanceof OpenLayers.Feature.Vector) {
+            geojson = this.extract.feature.apply(this, [obj]);
+            if(obj.layer && obj.layer.projection) {
+                geojson.crs = this.createCRSObject(obj);
+            }
+        }
+        return OpenLayers.Format.JSON.prototype.write.apply(this,
+                                                            [geojson, pretty]);
+    },
+
+    /**
+     * Method: createCRSObject
+     * Create the CRS object for an object.
+     *
+     * Parameters:
+     * object - {<OpenLayers.Feature.Vector>} 
+     *
+     * Returns:
+     * {Object} An object which can be assigned to the crs property
+     * of a GeoJSON object.
+     */
+    createCRSObject: function(object) {
+       var proj = object.layer.projection.toString();
+       var crs = {};
+       if (proj.match(/epsg:/i)) {
+           var code = parseInt(proj.substring(proj.indexOf(":") + 1));
+           if (code == 4326) {
+               crs = {
+                   "type": "name",
+                   "properties": {
+                       "name": "urn:ogc:def:crs:OGC:1.3:CRS84"
+                   }
+               };
+           } else {    
+               crs = {
+                   "type": "name",
+                   "properties": {
+                       "name": "EPSG:" + code
+                   }
+               };
+           }    
+       }
+       return crs;
+    },
+    
+    /**
+     * Property: extract
+     * Object with properties corresponding to the GeoJSON types.
+     *     Property values are functions that do the actual value extraction.
+     */
+    extract: {
+        /**
+         * Method: extract.feature
+         * Return a partial GeoJSON object representing a single feature.
+         *
+         * Parameters:
+         * feature - {<OpenLayers.Feature.Vector>}
+         *
+         * Returns:
+         * {Object} An object representing the point.
+         */
+        'feature': function(feature) {
+            var geom = this.extract.geometry.apply(this, [feature.geometry]);
+            var json = {
+                "type": "Feature",
+                "properties": feature.attributes,
+                "geometry": geom
+            };
+            if (feature.fid != null) {
+                json.id = feature.fid;
+            }
+            return json;
+        },
+        
+        /**
+         * Method: extract.geometry
+         * Return a GeoJSON object representing a single geometry.
+         *
+         * Parameters:
+         * geometry - {<OpenLayers.Geometry>}
+         *
+         * Returns:
+         * {Object} An object representing the geometry.
+         */
+        'geometry': function(geometry) {
+            if (geometry == null) {
+                return null;
+            }
+            if (this.internalProjection && this.externalProjection) {
+                geometry = geometry.clone();
+                geometry.transform(this.internalProjection, 
+                                   this.externalProjection);
+            }                       
+            var geometryType = geometry.CLASS_NAME.split('.')[2];
+            var data = this.extract[geometryType.toLowerCase()].apply(this, [geometry]);
+            var json;
+            if(geometryType == "Collection") {
+                json = {
+                    "type": "GeometryCollection",
+                    "geometries": data
+                };
+            } else {
+                json = {
+                    "type": geometryType,
+                    "coordinates": data
+                };
+            }
+            
+            return json;
+        },
+
+        /**
+         * Method: extract.point
+         * Return an array of coordinates from a point.
+         *
+         * Parameters:
+         * point - {<OpenLayers.Geometry.Point>}
+         *
+         * Returns: 
+         * {Array} An array of coordinates representing the point.
+         */
+        'point': function(point) {
+            return [point.x, point.y];
+        },
+
+        /**
+         * Method: extract.multipoint
+         * Return an array of point coordinates from a multipoint.
+         *
+         * Parameters:
+         * multipoint - {<OpenLayers.Geometry.MultiPoint>}
+         *
+         * Returns:
+         * {Array} An array of point coordinate arrays representing
+         *     the multipoint.
+         */
+        'multipoint': function(multipoint) {
+            var array = [];
+            for(var i=0, len=multipoint.components.length; i<len; ++i) {
+                array.push(this.extract.point.apply(this, [multipoint.components[i]]));
+            }
+            return array;
+        },
+        
+        /**
+         * Method: extract.linestring
+         * Return an array of coordinate arrays from a linestring.
+         *
+         * Parameters:
+         * linestring - {<OpenLayers.Geometry.LineString>}
+         *
+         * Returns:
+         * {Array} An array of coordinate arrays representing
+         *     the linestring.
+         */
+        'linestring': function(linestring) {
+            var array = [];
+            for(var i=0, len=linestring.components.length; i<len; ++i) {
+                array.push(this.extract.point.apply(this, [linestring.components[i]]));
+            }
+            return array;
+        },
+
+        /**
+         * Method: extract.multilinestring
+         * Return an array of linestring arrays from a linestring.
+         * 
+         * Parameters:
+         * multilinestring - {<OpenLayers.Geometry.MultiLineString>}
+         * 
+         * Returns:
+         * {Array} An array of linestring arrays representing
+         *     the multilinestring.
+         */
+        'multilinestring': function(multilinestring) {
+            var array = [];
+            for(var i=0, len=multilinestring.components.length; i<len; ++i) {
+                array.push(this.extract.linestring.apply(this, [multilinestring.components[i]]));
+            }
+            return array;
+        },
+        
+        /**
+         * Method: extract.polygon
+         * Return an array of linear ring arrays from a polygon.
+         *
+         * Parameters:
+         * polygon - {<OpenLayers.Geometry.Polygon>}
+         * 
+         * Returns:
+         * {Array} An array of linear ring arrays representing the polygon.
+         */
+        'polygon': function(polygon) {
+            var array = [];
+            for(var i=0, len=polygon.components.length; i<len; ++i) {
+                array.push(this.extract.linestring.apply(this, [polygon.components[i]]));
+            }
+            return array;
+        },
+
+        /**
+         * Method: extract.multipolygon
+         * Return an array of polygon arrays from a multipolygon.
+         * 
+         * Parameters:
+         * multipolygon - {<OpenLayers.Geometry.MultiPolygon>}
+         * 
+         * Returns:
+         * {Array} An array of polygon arrays representing
+         *     the multipolygon
+         */
+        'multipolygon': function(multipolygon) {
+            var array = [];
+            for(var i=0, len=multipolygon.components.length; i<len; ++i) {
+                array.push(this.extract.polygon.apply(this, [multipolygon.components[i]]));
+            }
+            return array;
+        },
+        
+        /**
+         * Method: extract.collection
+         * Return an array of geometries from a geometry collection.
+         * 
+         * Parameters:
+         * collection - {<OpenLayers.Geometry.Collection>}
+         * 
+         * Returns:
+         * {Array} An array of geometry objects representing the geometry
+         *     collection.
+         */
+        'collection': function(collection) {
+            var len = collection.components.length;
+            var array = new Array(len);
+            for(var i=0; i<len; ++i) {
+                array[i] = this.extract.geometry.apply(
+                    this, [collection.components[i]]
+                );
+            }
+            return array;
+        }
+        
+
+    },
+
+    CLASS_NAME: "OpenLayers.Format.GeoJSON" 
+
+});     
+/* ======================================================================
+    OpenLayers/Control/DrawFeature.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Control.js
+ * @requires OpenLayers/Feature/Vector.js
+ */
+
+/**
+ * Class: OpenLayers.Control.DrawFeature
+ * The DrawFeature control draws point, line or polygon features on a vector
+ * layer when active.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.DrawFeature = OpenLayers.Class(OpenLayers.Control, {
+    
+    /**
+     * Property: layer
+     * {<OpenLayers.Layer.Vector>}
+     */
+    layer: null,
+
+    /**
+     * Property: callbacks
+     * {Object} The functions that are sent to the handler for callback
+     */
+    callbacks: null,
+    
+    /** 
+     * APIProperty: events
+     * {<OpenLayers.Events>} Events instance for listeners and triggering
+     *     control specific events.
+     *
+     * Register a listener for a particular event with the following syntax:
+     * (code)
+     * control.events.register(type, obj, listener);
+     * (end)
+     *
+     * Supported event types (in addition to those from <OpenLayers.Control.events>):
+     * featureadded - Triggered when a feature is added
+     */
+    
+    /**
+     * APIProperty: multi
+     * {Boolean} Cast features to multi-part geometries before passing to the
+     *     layer.  Default is false.
+     */
+    multi: false,
+
+    /**
+     * APIProperty: featureAdded
+     * {Function} Called after each feature is added
+     */
+    featureAdded: function() {},
+
+    /**
+     * APIProperty: handlerOptions
+     * {Object} Used to set non-default properties on the control's handler
+     */
+    
+    /**
+     * Constructor: OpenLayers.Control.DrawFeature
+     * 
+     * Parameters:
+     * layer - {<OpenLayers.Layer.Vector>} 
+     * handler - {<OpenLayers.Handler>} 
+     * options - {Object} 
+     */
+    initialize: function(layer, handler, options) {
+        OpenLayers.Control.prototype.initialize.apply(this, [options]);
+        this.callbacks = OpenLayers.Util.extend(
+            {
+                done: this.drawFeature,
+                modify: function(vertex, feature) {
+                    this.layer.events.triggerEvent(
+                        "sketchmodified", {vertex: vertex, feature: feature}
+                    );
+                },
+                create: function(vertex, feature) {
+                    this.layer.events.triggerEvent(
+                        "sketchstarted", {vertex: vertex, feature: feature}
+                    );
+                }
+            },
+            this.callbacks
+        );
+        this.layer = layer;
+        this.handlerOptions = this.handlerOptions || {};
+        this.handlerOptions.layerOptions = OpenLayers.Util.applyDefaults(
+            this.handlerOptions.layerOptions, {
+                renderers: layer.renderers, rendererOptions: layer.rendererOptions
+            }
+        );
+        if (!("multi" in this.handlerOptions)) {
+            this.handlerOptions.multi = this.multi;
+        }
+        var sketchStyle = this.layer.styleMap && this.layer.styleMap.styles.temporary;
+        if(sketchStyle) {
+            this.handlerOptions.layerOptions = OpenLayers.Util.applyDefaults(
+                this.handlerOptions.layerOptions,
+                {styleMap: new OpenLayers.StyleMap({"default": sketchStyle})}
+            );
+        }
+        this.handler = new handler(this, this.callbacks, this.handlerOptions);
+    },
+
+    /**
+     * Method: drawFeature
+     */
+    drawFeature: function(geometry) {
+        var feature = new OpenLayers.Feature.Vector(geometry);
+        var proceed = this.layer.events.triggerEvent(
+            "sketchcomplete", {feature: feature}
+        );
+        if(proceed !== false) {
+            feature.state = OpenLayers.State.INSERT;
+            this.layer.addFeatures([feature]);
+            this.featureAdded(feature);
+            this.events.triggerEvent("featureadded",{feature : feature});
+        }
+    },
+    
+    /**
+     * APIMethod: insertXY
+     * Insert a point in the current sketch given x & y coordinates.
+     *
+     * Parameters:
+     * x - {Number} The x-coordinate of the point.
+     * y - {Number} The y-coordinate of the point.
+     */
+    insertXY: function(x, y) {
+        if (this.handler && this.handler.line) {
+            this.handler.insertXY(x, y);
+        }
+    },
+
+    /**
+     * APIMethod: insertDeltaXY
+     * Insert a point given offsets from the previously inserted point.
+     *
+     * Parameters:
+     * dx - {Number} The x-coordinate offset of the point.
+     * dy - {Number} The y-coordinate offset of the point.
+     */
+    insertDeltaXY: function(dx, dy) {
+        if (this.handler && this.handler.line) {
+            this.handler.insertDeltaXY(dx, dy);
+        }
+    },
+
+    /**
+     * APIMethod: insertDirectionLength
+     * Insert a point in the current sketch given a direction and a length.
+     *
+     * Parameters:
+     * direction - {Number} Degrees clockwise from the positive x-axis.
+     * length - {Number} Distance from the previously drawn point.
+     */
+    insertDirectionLength: function(direction, length) {
+        if (this.handler && this.handler.line) {
+            this.handler.insertDirectionLength(direction, length);
+        }
+    },
+
+    /**
+     * APIMethod: insertDeflectionLength
+     * Insert a point in the current sketch given a deflection and a length.
+     *     The deflection should be degrees clockwise from the previously 
+     *     digitized segment.
+     *
+     * Parameters:
+     * deflection - {Number} Degrees clockwise from the previous segment.
+     * length - {Number} Distance from the previously drawn point.
+     */
+    insertDeflectionLength: function(deflection, length) {
+        if (this.handler && this.handler.line) {
+            this.handler.insertDeflectionLength(deflection, length);
+        }
+    },
+    
+    /**
+     * APIMethod: undo
+     * Remove the most recently added point in the current sketch geometry.
+     *
+     * Returns: 
+     * {Boolean} An edit was undone.
+     */
+    undo: function() {
+        return this.handler.undo && this.handler.undo();
+    },
+    
+    /**
+     * APIMethod: redo
+     * Reinsert the most recently removed point resulting from an <undo> call.
+     *     The undo stack is deleted whenever a point is added by other means.
+     *
+     * Returns: 
+     * {Boolean} An edit was redone.
+     */
+    redo: function() {
+        return this.handler.redo && this.handler.redo();
+    },
+    
+    /**
+     * APIMethod: finishSketch
+     * Finishes the sketch without including the currently drawn point.
+     *     This method can be called to terminate drawing programmatically
+     *     instead of waiting for the user to end the sketch.
+     */
+    finishSketch: function() {
+        this.handler.finishGeometry();
+    },
+
+    /**
+     * APIMethod: cancel
+     * Cancel the current sketch.  This removes the current sketch and keeps
+     *     the drawing control active.
+     */
+    cancel: function() {
+        this.handler.cancel();
+    },
+
+    CLASS_NAME: "OpenLayers.Control.DrawFeature"
+});
+/* ======================================================================
+    OpenLayers/Handler/Pinch.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Handler.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.Pinch
+ * The pinch handler is used to deal with sequences of browser events related
+ *     to pinch gestures. The handler is used by controls that want to know
+ *     when a pinch sequence begins, when a pinch is happening, and when it has
+ *     finished.
+ *
+ * Controls that use the pinch handler typically construct it with callbacks
+ *     for 'start', 'move', and 'done'.  Callbacks for these keys are
+ *     called when the pinch begins, with each change, and when the pinch is
+ *     done.
+ *
+ * Create a new pinch handler with the <OpenLayers.Handler.Pinch> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Handler>
+ */
+OpenLayers.Handler.Pinch = OpenLayers.Class(OpenLayers.Handler, {
+
+    /**
+     * Property: started
+     * {Boolean} When a touchstart event is received, we want to record it,
+     *     but not set 'pinching' until the touchmove get started after
+     *     starting.
+     */
+    started: false,
+
+    /**
+     * Property: stopDown
+     * {Boolean} Stop propagation of touchstart events from getting to
+     *     listeners on the same element. Default is false.
+     */
+    stopDown: false,
+
+    /**
+     * Property: pinching
+     * {Boolean}
+     */
+    pinching: false,
+
+    /**
+     * Property: last
+     * {Object} Object that store informations related to pinch last touch.
+     */
+    last: null,
+
+    /**
+     * Property: start
+     * {Object} Object that store informations related to pinch touchstart.
+     */
+    start: null,
+
+    /**
+     * Constructor: OpenLayers.Handler.Pinch
+     * Returns OpenLayers.Handler.Pinch
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that is making use of
+     *     this handler.  If a handler is being used without a control, the
+     *     handlers setMap method must be overridden to deal properly with
+     *     the map.
+     * callbacks - {Object} An object containing functions to be called when
+     *     the pinch operation start, change, or is finished. The callbacks
+     *     should expect to receive an object argument, which contains
+     *     information about scale, distance, and position of touch points.
+     * options - {Object}
+     */
+
+    /**
+     * Method: touchstart
+     * Handle touchstart events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    touchstart: function(evt) {
+        var propagate = true;
+        this.pinching = false;
+        if (OpenLayers.Event.isMultiTouch(evt)) {
+            this.started = true;
+            this.last = this.start = {
+                distance: this.getDistance(evt.touches),
+                delta: 0,
+                scale: 1
+            };
+            this.callback("start", [evt, this.start]);
+            propagate = !this.stopDown;
+        } else if (this.started) {
+            // Some webkit versions send fake single-touch events during
+            // multitouch, which cause the drag handler to trigger
+            return false;
+        } else {
+            this.started = false;
+            this.start = null;
+            this.last = null;
+        }
+        // prevent document dragging
+        OpenLayers.Event.preventDefault(evt);
+        return propagate;
+    },
+
+    /**
+     * Method: touchmove
+     * Handle touchmove events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    touchmove: function(evt) {
+        if (this.started && OpenLayers.Event.isMultiTouch(evt)) {
+            this.pinching = true;
+            var current = this.getPinchData(evt);
+            this.callback("move", [evt, current]);
+            this.last = current;
+            // prevent document dragging
+            OpenLayers.Event.stop(evt);
+        } else if (this.started) {
+            // Some webkit versions send fake single-touch events during
+            // multitouch, which cause the drag handler to trigger
+            return false;
+        }
+        return true;
+    },
+
+    /**
+     * Method: touchend
+     * Handle touchend events
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Boolean} Let the event propagate.
+     */
+    touchend: function(evt) {
+        if (this.started && !OpenLayers.Event.isMultiTouch(evt)) {
+            this.started = false;
+            this.pinching = false;
+            this.callback("done", [evt, this.start, this.last]);
+            this.start = null;
+            this.last = null;
+            return false;
+        }
+        return true;
+    },
+
+    /**
+     * Method: activate
+     * Activate the handler.
+     *
+     * Returns:
+     * {Boolean} The handler was successfully activated.
+     */
+    activate: function() {
+        var activated = false;
+        if (OpenLayers.Handler.prototype.activate.apply(this, arguments)) {
+            this.pinching = false;
+            activated = true;
+        }
+        return activated;
+    },
+
+    /**
+     * Method: deactivate
+     * Deactivate the handler.
+     *
+     * Returns:
+     * {Boolean} The handler was successfully deactivated.
+     */
+    deactivate: function() {
+        var deactivated = false;
+        if (OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
+            this.started = false;
+            this.pinching = false;
+            this.start = null;
+            this.last = null;
+            deactivated = true;
+        }
+        return deactivated;
+    },
+
+    /**
+     * Method: getDistance
+     * Get the distance in pixels between two touches.
+     *
+     * Parameters:
+     * touches - {Array(Object)}
+     *
+     * Returns:
+     * {Number} The distance in pixels.
+     */
+    getDistance: function(touches) {
+        var t0 = touches[0];
+        var t1 = touches[1];
+        return Math.sqrt(
+            Math.pow(t0.olClientX - t1.olClientX, 2) +
+            Math.pow(t0.olClientY - t1.olClientY, 2)
+        );
+    },
+
+
+    /**
+     * Method: getPinchData
+     * Get informations about the pinch event.
+     *
+     * Parameters:
+     * evt - {Event}
+     *
+     * Returns:
+     * {Object} Object that contains data about the current pinch.
+     */
+    getPinchData: function(evt) {
+        var distance = this.getDistance(evt.touches);
+        var scale = distance / this.start.distance;
+        return {
+            distance: distance,
+            delta: this.last.distance - distance,
+            scale: scale
+        };
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.Pinch"
+});
+
+/* ======================================================================
+    OpenLayers/Handler/Polygon.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Handler/Path.js
+ * @requires OpenLayers/Geometry/Polygon.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.Polygon
+ * Handler to draw a polygon on the map.  Polygon is displayed on mouse down,
+ * moves on mouse move, and is finished on mouse up.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Handler.Path>
+ *  - <OpenLayers.Handler>
+ */
+OpenLayers.Handler.Polygon = OpenLayers.Class(OpenLayers.Handler.Path, {
+    
+    /** 
+     * APIProperty: holeModifier
+     * {String} Key modifier to trigger hole digitizing.  Acceptable values are
+     *     "altKey", "shiftKey", or "ctrlKey".  If not set, no hole digitizing
+     *     will take place.  Default is null.
+     */
+    holeModifier: null,
+    
+    /**
+     * Property: drawingHole
+     * {Boolean} Currently drawing an interior ring.
+     */
+    drawingHole: false,
+    
+    /**
+     * Property: polygon
+     * {<OpenLayers.Feature.Vector>}
+     */
+    polygon: null,
+
+    /**
+     * Constructor: OpenLayers.Handler.Polygon
+     * Create a Polygon Handler.
+     *
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that owns this handler
+     * callbacks - {Object} An object with a properties whose values are
+     *     functions.  Various callbacks described below.
+     * options - {Object} An optional object with properties to be set on the
+     *           handler
+     *
+     * Named callbacks:
+     * create - Called when a sketch is first created.  Callback called with
+     *     the creation point geometry and sketch feature.
+     * modify - Called with each move of a vertex with the vertex (point)
+     *     geometry and the sketch feature.
+     * point - Called as each point is added.  Receives the new point geometry.
+     * done - Called when the point drawing is finished.  The callback will
+     *     recieve a single argument, the polygon geometry.
+     * cancel - Called when the handler is deactivated while drawing.  The
+     *     cancel callback will receive a geometry.
+     */
+    
+    /**
+     * Method: createFeature
+     * Add temporary geometries
+     *
+     * Parameters:
+     * pixel - {<OpenLayers.Pixel>} The initial pixel location for the new
+     *     feature.
+     */
+    createFeature: function(pixel) {
+        var lonlat = this.layer.getLonLatFromViewPortPx(pixel);
+        var geometry = new OpenLayers.Geometry.Point(
+            lonlat.lon, lonlat.lat
+        );
+        this.point = new OpenLayers.Feature.Vector(geometry);
+        this.line = new OpenLayers.Feature.Vector(
+            new OpenLayers.Geometry.LinearRing([this.point.geometry])
+        );
+        this.polygon = new OpenLayers.Feature.Vector(
+            new OpenLayers.Geometry.Polygon([this.line.geometry])
+        );
+        this.callback("create", [this.point.geometry, this.getSketch()]);
+        this.point.geometry.clearBounds();
+        this.layer.addFeatures([this.polygon, this.point], {silent: true});
+    },
+
+    /**
+     * Method: addPoint
+     * Add point to geometry.
+     *
+     * Parameters:
+     * pixel - {<OpenLayers.Pixel>} The pixel location for the new point.
+     */
+    addPoint: function(pixel) {
+        if(!this.drawingHole && this.holeModifier &&
+           this.evt && this.evt[this.holeModifier]) {
+            var geometry = this.point.geometry;
+            var features = this.control.layer.features;
+            var candidate, polygon;
+            // look for intersections, last drawn gets priority
+            for (var i=features.length-1; i>=0; --i) {
+                candidate = features[i].geometry;
+                if ((candidate instanceof OpenLayers.Geometry.Polygon || 
+                    candidate instanceof OpenLayers.Geometry.MultiPolygon) && 
+                    candidate.intersects(geometry)) {
+                    polygon = features[i];
+                    this.control.layer.removeFeatures([polygon], {silent: true});
+                    this.control.layer.events.registerPriority(
+                        "sketchcomplete", this, this.finalizeInteriorRing
+                    );
+                    this.control.layer.events.registerPriority(
+                        "sketchmodified", this, this.enforceTopology
+                    );
+                    polygon.geometry.addComponent(this.line.geometry);
+                    this.polygon = polygon;
+                    this.drawingHole = true;
+                    break;
+                }
+            }
+        }
+        OpenLayers.Handler.Path.prototype.addPoint.apply(this, arguments);
+    },
+
+    /**
+     * Method: getCurrentPointIndex
+     * 
+     * Returns:
+     * {Number} The index of the most recently drawn point.
+     */
+    getCurrentPointIndex: function() {
+        return this.line.geometry.components.length - 2;
+    },
+
+    /**
+     * Method: enforceTopology
+     * Simple topology enforcement for drawing interior rings.  Ensures vertices
+     *     of interior rings are contained by exterior ring.  Other topology 
+     *     rules are enforced in <finalizeInteriorRing> to allow drawing of 
+     *     rings that intersect only during the sketch (e.g. a "C" shaped ring
+     *     that nearly encloses another ring).
+     */
+    enforceTopology: function(event) {
+        var point = event.vertex;
+        var components = this.line.geometry.components;
+        // ensure that vertices of interior ring are contained by exterior ring
+        if (!this.polygon.geometry.intersects(point)) {
+            var last = components[components.length-3];
+            point.x = last.x;
+            point.y = last.y;
+        }
+    },
+
+    /**
+     * Method: finishGeometry
+     * Finish the geometry and send it back to the control.
+     */
+    finishGeometry: function() {
+        var index = this.line.geometry.components.length - 2;
+        this.line.geometry.removeComponent(this.line.geometry.components[index]);
+        this.removePoint();
+        this.finalize();
+    },
+
+    /**
+     * Method: finalizeInteriorRing
+     * Enforces that new ring has some area and doesn't contain vertices of any
+     *     other rings.
+     */
+    finalizeInteriorRing: function() {
+        var ring = this.line.geometry;
+        // ensure that ring has some area
+        var modified = (ring.getArea() !== 0);
+        if (modified) {
+            // ensure that new ring doesn't intersect any other rings
+            var rings = this.polygon.geometry.components;
+            for (var i=rings.length-2; i>=0; --i) {
+                if (ring.intersects(rings[i])) {
+                    modified = false;
+                    break;
+                }
+            }
+            if (modified) {
+                // ensure that new ring doesn't contain any other rings
+                var target;
+                outer: for (var i=rings.length-2; i>0; --i) {
+                    var points = rings[i].components;
+                    for (var j=0, jj=points.length; j<jj; ++j) {
+                        if (ring.containsPoint(points[j])) {
+                            modified = false;
+                            break outer;
+                        }
+                    }
+                }
+            }
+        }
+        if (modified) {
+            if (this.polygon.state !== OpenLayers.State.INSERT) {
+                this.polygon.state = OpenLayers.State.UPDATE;
+            }
+        } else {
+            this.polygon.geometry.removeComponent(ring);
+        }
+        this.restoreFeature();
+        return false;
+    },
+
+    /**
+     * APIMethod: cancel
+     * Finish the geometry and call the "cancel" callback.
+     */
+    cancel: function() {
+        if (this.drawingHole) {
+            this.polygon.geometry.removeComponent(this.line.geometry);
+            this.restoreFeature(true);
+        }
+        return OpenLayers.Handler.Path.prototype.cancel.apply(this, arguments);
+    },
+    
+    /**
+     * Method: restoreFeature
+     * Move the feature from the sketch layer to the target layer.
+     *
+     * Properties: 
+     * cancel - {Boolean} Cancel drawing.  If falsey, the "sketchcomplete" event
+     *     will be fired.
+     */
+    restoreFeature: function(cancel) {
+        this.control.layer.events.unregister(
+            "sketchcomplete", this, this.finalizeInteriorRing
+        );
+        this.control.layer.events.unregister(
+            "sketchmodified", this, this.enforceTopology
+        );
+        this.layer.removeFeatures([this.polygon], {silent: true});
+        this.control.layer.addFeatures([this.polygon], {silent: true});
+        this.drawingHole = false;
+        if (!cancel) {
+            // Re-trigger "sketchcomplete" so other listeners can do their
+            // business.  While this is somewhat sloppy (if a listener is 
+            // registered with registerPriority - not common - between the start
+            // and end of a single ring drawing - very uncommon - it will be 
+            // called twice).
+            // TODO: In 3.0, collapse sketch handlers into geometry specific
+            // drawing controls.
+            this.control.layer.events.triggerEvent(
+                "sketchcomplete", {feature : this.polygon}
+            );
+        }
+    },
+
+    /**
+     * Method: destroyFeature
+     * Destroy temporary geometries
+     *
+     * Parameters:
+     * force - {Boolean} Destroy even if persist is true.
+     */
+    destroyFeature: function(force) {
+        OpenLayers.Handler.Path.prototype.destroyFeature.call(
+            this, force);
+        this.polygon = null;
+    },
+
+    /**
+     * Method: drawFeature
+     * Render geometries on the temporary layer.
+     */
+    drawFeature: function() {
+        this.layer.drawFeature(this.polygon, this.style);
+        this.layer.drawFeature(this.point, this.style);
+    },
+    
+    /**
+     * Method: getSketch
+     * Return the sketch feature.
+     *
+     * Returns:
+     * {<OpenLayers.Feature.Vector>}
+     */
+    getSketch: function() {
+        return this.polygon;
+    },
+
+    /**
+     * Method: getGeometry
+     * Return the sketch geometry.  If <multi> is true, this will return
+     *     a multi-part geometry.
+     *
+     * Returns:
+     * {<OpenLayers.Geometry.Polygon>}
+     */
+    getGeometry: function() {
+        var geometry = this.polygon && this.polygon.geometry;
+        if(geometry && this.multi) {
+            geometry = new OpenLayers.Geometry.MultiPolygon([geometry]);
+        }
+        return geometry;
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.Polygon"
+});
+/* ======================================================================
+    OpenLayers/Control/Geolocate.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Control.js
+ * @requires OpenLayers/Geometry/Point.js
+ * @requires OpenLayers/Projection.js
+ */
+
+/**
+ * Class: OpenLayers.Control.Geolocate
+ * The Geolocate control wraps w3c geolocation API into control that can be
+ * bound to a map, and generate events on location update
+ *
+ * To use this control requires to load the proj4js library if the projection
+ * of the map is not EPSG:4326 or EPSG:900913.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.Geolocate = OpenLayers.Class(OpenLayers.Control, {
+
+    /** 
+     * APIProperty: events
+     * {<OpenLayers.Events>} Events instance for listeners and triggering
+     *     control specific events.
+     *
+     * Register a listener for a particular event with the following syntax:
+     * (code)
+     * control.events.register(type, obj, listener);
+     * (end)
+     *
+     * Supported event types (in addition to those from <OpenLayers.Control.events>):
+     * locationupdated - Triggered when browser return a new position. Listeners will 
+     *     receive an object with a 'position' property which is the browser.geolocation.position
+     *     native object, as well as a 'point' property which is the location transformed in the 
+     *     current map projection.
+     * locationfailed - Triggered when geolocation has failed
+     * locationuncapable - Triggered when control is activated on a browser
+     *     which doesn't support geolocation
+     */
+
+    /**
+     * Property: geolocation
+     * {Object} The geolocation engine, as a property to be possibly mocked.
+     * This is set lazily to avoid a memory leak in IE9.
+     */
+    geolocation: null,
+
+    /**
+     * Property: available
+     * {Boolean} The navigator.geolocation object is available.
+     */
+    available: ('geolocation' in navigator),
+
+    /**
+     * APIProperty: bind
+     * {Boolean} If true, map center will be set on location update.
+     */
+    bind: true,
+
+    /**
+     * APIProperty: watch
+     * {Boolean} If true, position will be update regularly.
+     */
+    watch: false,
+
+    /**
+     * APIProperty: geolocationOptions
+     * {Object} Options to pass to the navigator's geolocation API. See
+     *     <http://dev.w3.org/geo/api/spec-source.html>. No specific
+     *     option is passed to the geolocation API by default.
+     */
+    geolocationOptions: null,
+
+    /**
+     * Constructor: OpenLayers.Control.Geolocate
+     * Create a new control to deal with browser geolocation API
+     *
+     */
+
+    /**
+     * Method: destroy
+     */
+    destroy: function() {
+        this.deactivate();
+        OpenLayers.Control.prototype.destroy.apply(this, arguments);
+    },
+
+    /**
+     * Method: activate
+     * Activates the control.
+     *
+     * Returns:
+     * {Boolean} The control was effectively activated.
+     */
+    activate: function () {
+        if (this.available && !this.geolocation) {
+            // set lazily to avoid IE9 memory leak
+            this.geolocation = navigator.geolocation;
+        }
+        if (!this.geolocation) {
+            this.events.triggerEvent("locationuncapable");
+            return false;
+        }
+        if (OpenLayers.Control.prototype.activate.apply(this, arguments)) {
+            if (this.watch) {
+                this.watchId = this.geolocation.watchPosition(
+                    OpenLayers.Function.bind(this.geolocate, this),
+                    OpenLayers.Function.bind(this.failure, this),
+                    this.geolocationOptions
+                );
+            } else {
+                this.getCurrentLocation();
+            }
+            return true;
+        }
+        return false;
+    },
+
+    /**
+     * Method: deactivate
+     * Deactivates the control.
+     *
+     * Returns:
+     * {Boolean} The control was effectively deactivated.
+     */
+    deactivate: function () {
+        if (this.active && this.watchId !== null) {
+            this.geolocation.clearWatch(this.watchId);
+        }
+        return OpenLayers.Control.prototype.deactivate.apply(
+            this, arguments
+        );
+    },
+
+    /**
+     * Method: geolocate
+     * Activates the control.
+     *
+     */
+    geolocate: function (position) {
+        var center = new OpenLayers.LonLat(
+            position.coords.longitude,
+            position.coords.latitude
+        ).transform(
+            new OpenLayers.Projection("EPSG:4326"),
+            this.map.getProjectionObject()
+        );
+        if (this.bind) {
+            this.map.setCenter(center);
+        }
+        this.events.triggerEvent("locationupdated", {
+            position: position,
+            point: new OpenLayers.Geometry.Point(
+                center.lon, center.lat
+            )
+        });
+    },
+
+    /**
+     * APIMethod: getCurrentLocation
+     *
+     * Returns:
+     * {Boolean} Returns true if a event will be fired (successfull
+     * registration)
+     */
+    getCurrentLocation: function() {
+        if (!this.active || this.watch) {
+            return false;
+        }
+        this.geolocation.getCurrentPosition(
+            OpenLayers.Function.bind(this.geolocate, this),
+            OpenLayers.Function.bind(this.failure, this),
+            this.geolocationOptions
+        );
+        return true;
+    },
+
+    /**
+     * Method: failure
+     * method called on browser's geolocation failure
+     *
+     */
+    failure: function (error) {
+        this.events.triggerEvent("locationfailed", {error: error});
+    },
+
+    CLASS_NAME: "OpenLayers.Control.Geolocate"
+});
+/* ======================================================================
+    OpenLayers/Protocol/HTTP.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Protocol.js
+ * @requires OpenLayers/Request/XMLHttpRequest.js
+ */
+
+/**
+ * if application uses the query string, for example, for BBOX parameters,
+ * OpenLayers/Format/QueryStringFilter.js should be included in the build config file
+ */
+
+/**
+ * Class: OpenLayers.Protocol.HTTP
+ * A basic HTTP protocol for vector layers.  Create a new instance with the
+ *     <OpenLayers.Protocol.HTTP> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Protocol>
+ */
+OpenLayers.Protocol.HTTP = OpenLayers.Class(OpenLayers.Protocol, {
+
+    /**
+     * Property: url
+     * {String} Service URL, read-only, set through the options
+     *     passed to constructor.
+     */
+    url: null,
+
+    /**
+     * Property: headers
+     * {Object} HTTP request headers, read-only, set through the options
+     *     passed to the constructor,
+     *     Example: {'Content-Type': 'plain/text'}
+     */
+    headers: null,
+
+    /**
+     * Property: params
+     * {Object} Parameters of GET requests, read-only, set through the options
+     *     passed to the constructor,
+     *     Example: {'bbox': '5,5,5,5'}
+     */
+    params: null,
+    
+    /**
+     * Property: callback
+     * {Object} Function to be called when the <read>, <create>,
+     *     <update>, <delete> or <commit> operation completes, read-only,
+     *     set through the options passed to the constructor.
+     */
+    callback: null,
+
+    /**
+     * Property: scope
+     * {Object} Callback execution scope, read-only, set through the
+     *     options passed to the constructor.
+     */
+    scope: null,
+
+    /**
+     * APIProperty: readWithPOST
+     * {Boolean} true if read operations are done with POST requests
+     *     instead of GET, defaults to false.
+     */
+    readWithPOST: false,
+
+    /**
+     * APIProperty: updateWithPOST
+     * {Boolean} true if update operations are done with POST requests
+     *     defaults to false.
+     */
+    updateWithPOST: false,
+    
+    /**
+     * APIProperty: deleteWithPOST
+     * {Boolean} true if delete operations are done with POST requests
+     *     defaults to false.
+     *     if true, POST data is set to output of format.write().
+     */
+    deleteWithPOST: false,
+
+    /**
+     * Property: wildcarded.
+     * {Boolean} If true percent signs are added around values
+     *     read from LIKE filters, for example if the protocol
+     *     read method is passed a LIKE filter whose property
+     *     is "foo" and whose value is "bar" the string
+     *     "foo__ilike=%bar%" will be sent in the query string;
+     *     defaults to false.
+     */
+    wildcarded: false,
+
+    /**
+     * APIProperty: srsInBBOX
+     * {Boolean} Include the SRS identifier in BBOX query string parameter.  
+     *     Default is false.  If true and the layer has a projection object set,
+     *     any BBOX filter will be serialized with a fifth item identifying the
+     *     projection.  E.g. bbox=-1000,-1000,1000,1000,EPSG:900913
+     */
+    srsInBBOX: false,
+
+    /**
+     * Constructor: OpenLayers.Protocol.HTTP
+     * A class for giving layers generic HTTP protocol.
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on the
+     *     instance.
+     *
+     * Valid options include:
+     * url - {String}
+     * headers - {Object} 
+     * params - {Object} URL parameters for GET requests
+     * format - {<OpenLayers.Format>}
+     * callback - {Function}
+     * scope - {Object}
+     */
+    initialize: function(options) {
+        options = options || {};
+        this.params = {};
+        this.headers = {};
+        OpenLayers.Protocol.prototype.initialize.apply(this, arguments);
+
+        if (!this.filterToParams && OpenLayers.Format.QueryStringFilter) {
+            var format = new OpenLayers.Format.QueryStringFilter({
+                wildcarded: this.wildcarded,
+                srsInBBOX: this.srsInBBOX
+            });
+            this.filterToParams = function(filter, params) {
+                return format.write(filter, params);
+            };
+        }
+    },
+    
+    /**
+     * APIMethod: destroy
+     * Clean up the protocol.
+     */
+    destroy: function() {
+        this.params = null;
+        this.headers = null;
+        OpenLayers.Protocol.prototype.destroy.apply(this);
+    },
+
+    /**
+     * APIMethod: filterToParams
+     * Optional method to translate an <OpenLayers.Filter> object into an object
+     *     that can be serialized as request query string provided.  If a custom
+     *     method is not provided, the filter will be serialized using the 
+     *     <OpenLayers.Format.QueryStringFilter> class.
+     *
+     * Parameters:
+     * filter - {<OpenLayers.Filter>} filter to convert.
+     * params - {Object} The parameters object.
+     *
+     * Returns:
+     * {Object} The resulting parameters object.
+     */
+    
+    /**
+     * APIMethod: read
+     * Construct a request for reading new features.
+     *
+     * Parameters:
+     * options - {Object} Optional object for configuring the request.
+     *     This object is modified and should not be reused.
+     *
+     * Valid options:
+     * url - {String} Url for the request.
+     * params - {Object} Parameters to get serialized as a query string.
+     * headers - {Object} Headers to be set on the request.
+     * filter - {<OpenLayers.Filter>} Filter to get serialized as a
+     *     query string.
+     * readWithPOST - {Boolean} If the request should be done with POST.
+     *
+     * Returns:
+     * {<OpenLayers.Protocol.Response>} A response object, whose "priv" property
+     *     references the HTTP request, this object is also passed to the
+     *     callback function when the request completes, its "features" property
+     *     is then populated with the features received from the server.
+     */
+    read: function(options) {
+        OpenLayers.Protocol.prototype.read.apply(this, arguments);
+        options = options || {};
+        options.params = OpenLayers.Util.applyDefaults(
+            options.params, this.options.params);
+        options = OpenLayers.Util.applyDefaults(options, this.options);
+        if (options.filter && this.filterToParams) {
+            options.params = this.filterToParams(
+                options.filter, options.params
+            );
+        }
+        var readWithPOST = (options.readWithPOST !== undefined) ?
+                           options.readWithPOST : this.readWithPOST;
+        var resp = new OpenLayers.Protocol.Response({requestType: "read"});
+        if(readWithPOST) {
+            var headers = options.headers || {};
+            headers["Content-Type"] = "application/x-www-form-urlencoded";
+            resp.priv = OpenLayers.Request.POST({
+                url: options.url,
+                callback: this.createCallback(this.handleRead, resp, options),
+                data: OpenLayers.Util.getParameterString(options.params),
+                headers: headers
+            });
+        } else {
+            resp.priv = OpenLayers.Request.GET({
+                url: options.url,
+                callback: this.createCallback(this.handleRead, resp, options),
+                params: options.params,
+                headers: options.headers
+            });
+        }
+        return resp;
+    },
+
+    /**
+     * Method: handleRead
+     * Individual callbacks are created for read, create and update, should
+     *     a subclass need to override each one separately.
+     *
+     * Parameters:
+     * resp - {<OpenLayers.Protocol.Response>} The response object to pass to
+     *     the user callback.
+     * options - {Object} The user options passed to the read call.
+     */
+    handleRead: function(resp, options) {
+        this.handleResponse(resp, options);
+    },
+
+    /**
+     * APIMethod: create
+     * Construct a request for writing newly created features.
+     *
+     * Parameters:
+     * features - {Array({<OpenLayers.Feature.Vector>})} or
+     *     {<OpenLayers.Feature.Vector>}
+     * options - {Object} Optional object for configuring the request.
+     *     This object is modified and should not be reused.
+     *
+     * Returns:
+     * {<OpenLayers.Protocol.Response>} An <OpenLayers.Protocol.Response>
+     *     object, whose "priv" property references the HTTP request, this 
+     *     object is also passed to the callback function when the request
+     *     completes, its "features" property is then populated with the
+     *     the features received from the server.
+     */
+    create: function(features, options) {
+        options = OpenLayers.Util.applyDefaults(options, this.options);
+
+        var resp = new OpenLayers.Protocol.Response({
+            reqFeatures: features,
+            requestType: "create"
+        });
+
+        resp.priv = OpenLayers.Request.POST({
+            url: options.url,
+            callback: this.createCallback(this.handleCreate, resp, options),
+            headers: options.headers,
+            data: this.format.write(features)
+        });
+
+        return resp;
+    },
+
+    /**
+     * Method: handleCreate
+     * Called the the request issued by <create> is complete.  May be overridden
+     *     by subclasses.
+     *
+     * Parameters:
+     * resp - {<OpenLayers.Protocol.Response>} The response object to pass to
+     *     any user callback.
+     * options - {Object} The user options passed to the create call.
+     */
+    handleCreate: function(resp, options) {
+        this.handleResponse(resp, options);
+    },
+
+    /**
+     * APIMethod: update
+     * Construct a request updating modified feature.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>}
+     * options - {Object} Optional object for configuring the request.
+     *     This object is modified and should not be reused.
+     *
+     * Returns:
+     * {<OpenLayers.Protocol.Response>} An <OpenLayers.Protocol.Response>
+     *     object, whose "priv" property references the HTTP request, this 
+     *     object is also passed to the callback function when the request
+     *     completes, its "features" property is then populated with the
+     *     the feature received from the server.
+     */
+    update: function(feature, options) {
+        options = options || {};
+        var url = options.url ||
+                  feature.url ||
+                  this.options.url + "/" + feature.fid;
+        options = OpenLayers.Util.applyDefaults(options, this.options);
+
+        var resp = new OpenLayers.Protocol.Response({
+            reqFeatures: feature,
+            requestType: "update"
+        });
+
+        var method = this.updateWithPOST ? "POST" : "PUT";
+        resp.priv = OpenLayers.Request[method]({
+            url: url,
+            callback: this.createCallback(this.handleUpdate, resp, options),
+            headers: options.headers,
+            data: this.format.write(feature)
+        });
+
+        return resp;
+    },
+
+    /**
+     * Method: handleUpdate
+     * Called the the request issued by <update> is complete.  May be overridden
+     *     by subclasses.
+     *
+     * Parameters:
+     * resp - {<OpenLayers.Protocol.Response>} The response object to pass to
+     *     any user callback.
+     * options - {Object} The user options passed to the update call.
+     */
+    handleUpdate: function(resp, options) {
+        this.handleResponse(resp, options);
+    },
+
+    /**
+     * APIMethod: delete
+     * Construct a request deleting a removed feature.
+     *
+     * Parameters:
+     * feature - {<OpenLayers.Feature.Vector>}
+     * options - {Object} Optional object for configuring the request.
+     *     This object is modified and should not be reused.
+     *
+     * Returns:
+     * {<OpenLayers.Protocol.Response>} An <OpenLayers.Protocol.Response>
+     *     object, whose "priv" property references the HTTP request, this 
+     *     object is also passed to the callback function when the request
+     *     completes.
+     */
+    "delete": function(feature, options) {
+        options = options || {};
+        var url = options.url ||
+                  feature.url ||
+                  this.options.url + "/" + feature.fid;
+        options = OpenLayers.Util.applyDefaults(options, this.options);
+
+        var resp = new OpenLayers.Protocol.Response({
+            reqFeatures: feature,
+            requestType: "delete"
+        });
+
+        var method = this.deleteWithPOST ? "POST" : "DELETE";
+        var requestOptions = {
+            url: url,
+            callback: this.createCallback(this.handleDelete, resp, options),
+            headers: options.headers
+        };
+        if (this.deleteWithPOST) {
+            requestOptions.data = this.format.write(feature);
+        }
+        resp.priv = OpenLayers.Request[method](requestOptions);
+
+        return resp;
+    },
+
+    /**
+     * Method: handleDelete
+     * Called the the request issued by <delete> is complete.  May be overridden
+     *     by subclasses.
+     *
+     * Parameters:
+     * resp - {<OpenLayers.Protocol.Response>} The response object to pass to
+     *     any user callback.
+     * options - {Object} The user options passed to the delete call.
+     */
+    handleDelete: function(resp, options) {
+        this.handleResponse(resp, options);
+    },
+
+    /**
+     * Method: handleResponse
+     * Called by CRUD specific handlers.
+     *
+     * Parameters:
+     * resp - {<OpenLayers.Protocol.Response>} The response object to pass to
+     *     any user callback.
+     * options - {Object} The user options passed to the create, read, update,
+     *     or delete call.
+     */
+    handleResponse: function(resp, options) {
+        var request = resp.priv;
+        if(options.callback) {
+            if(request.status >= 200 && request.status < 300) {
+                // success
+                if(resp.requestType != "delete") {
+                    resp.features = this.parseFeatures(request);
+                }
+                resp.code = OpenLayers.Protocol.Response.SUCCESS;
+            } else {
+                // failure
+                resp.code = OpenLayers.Protocol.Response.FAILURE;
+            }
+            options.callback.call(options.scope, resp);
+        }
+    },
+
+    /**
+     * Method: parseFeatures
+     * Read HTTP response body and return features.
+     *
+     * Parameters:
+     * request - {XMLHttpRequest} The request object
+     *
+     * Returns:
+     * {Array({<OpenLayers.Feature.Vector>})} or
+     *     {<OpenLayers.Feature.Vector>} Array of features or a single feature.
+     */
+    parseFeatures: function(request) {
+        var doc = request.responseXML;
+        if (!doc || !doc.documentElement) {
+            doc = request.responseText;
+        }
+        if (!doc || doc.length <= 0) {
+            return null;
+        }
+        return this.format.read(doc);
+    },
+
+    /**
+     * APIMethod: commit
+     * Iterate over each feature and take action based on the feature state.
+     *     Possible actions are create, update and delete.
+     *
+     * Parameters:
+     * features - {Array({<OpenLayers.Feature.Vector>})}
+     * options - {Object} Optional object for setting up intermediate commit
+     *     callbacks.
+     *
+     * Valid options:
+     * create - {Object} Optional object to be passed to the <create> method.
+     * update - {Object} Optional object to be passed to the <update> method.
+     * delete - {Object} Optional object to be passed to the <delete> method.
+     * callback - {Function} Optional function to be called when the commit
+     *     is complete.
+     * scope - {Object} Optional object to be set as the scope of the callback.
+     *
+     * Returns:
+     * {Array(<OpenLayers.Protocol.Response>)} An array of response objects,
+     *     one per request made to the server, each object's "priv" property
+     *     references the corresponding HTTP request.
+     */
+    commit: function(features, options) {
+        options = OpenLayers.Util.applyDefaults(options, this.options);
+        var resp = [], nResponses = 0;
+        
+        // Divide up features before issuing any requests.  This properly
+        // counts requests in the event that any responses come in before
+        // all requests have been issued.
+        var types = {};
+        types[OpenLayers.State.INSERT] = [];
+        types[OpenLayers.State.UPDATE] = [];
+        types[OpenLayers.State.DELETE] = [];
+        var feature, list, requestFeatures = [];
+        for(var i=0, len=features.length; i<len; ++i) {
+            feature = features[i];
+            list = types[feature.state];
+            if(list) {
+                list.push(feature);
+                requestFeatures.push(feature); 
+            }
+        }
+        // tally up number of requests
+        var nRequests = (types[OpenLayers.State.INSERT].length > 0 ? 1 : 0) +
+            types[OpenLayers.State.UPDATE].length +
+            types[OpenLayers.State.DELETE].length;
+        
+        // This response will be sent to the final callback after all the others
+        // have been fired.
+        var success = true;
+        var finalResponse = new OpenLayers.Protocol.Response({
+            reqFeatures: requestFeatures        
+        });
+        
+        function insertCallback(response) {
+            var len = response.features ? response.features.length : 0;
+            var fids = new Array(len);
+            for(var i=0; i<len; ++i) {
+                fids[i] = response.features[i].fid;
+            }   
+            finalResponse.insertIds = fids;
+            callback.apply(this, [response]);
+        }
+ 
+        function callback(response) {
+            this.callUserCallback(response, options);
+            success = success && response.success();
+            nResponses++;
+            if (nResponses >= nRequests) {
+                if (options.callback) {
+                    finalResponse.code = success ? 
+                        OpenLayers.Protocol.Response.SUCCESS :
+                        OpenLayers.Protocol.Response.FAILURE;
+                    options.callback.apply(options.scope, [finalResponse]);
+                }    
+            }
+        }
+
+        // start issuing requests
+        var queue = types[OpenLayers.State.INSERT];
+        if(queue.length > 0) {
+            resp.push(this.create(
+                queue, OpenLayers.Util.applyDefaults(
+                    {callback: insertCallback, scope: this}, options.create
+                )
+            ));
+        }
+        queue = types[OpenLayers.State.UPDATE];
+        for(var i=queue.length-1; i>=0; --i) {
+            resp.push(this.update(
+                queue[i], OpenLayers.Util.applyDefaults(
+                    {callback: callback, scope: this}, options.update
+                ))
+            );
+        }
+        queue = types[OpenLayers.State.DELETE];
+        for(var i=queue.length-1; i>=0; --i) {
+            resp.push(this["delete"](
+                queue[i], OpenLayers.Util.applyDefaults(
+                    {callback: callback, scope: this}, options["delete"]
+                ))
+            );
+        }
+        return resp;
+    },
+
+    /**
+     * APIMethod: abort
+     * Abort an ongoing request, the response object passed to
+     * this method must come from this HTTP protocol (as a result
+     * of a create, read, update, delete or commit operation).
+     *
+     * Parameters:
+     * response - {<OpenLayers.Protocol.Response>}
+     */
+    abort: function(response) {
+        if (response) {
+            response.priv.abort();
+        }
+    },
+
+    /**
+     * Method: callUserCallback
+     * This method is used from within the commit method each time an
+     *     an HTTP response is received from the server, it is responsible
+     *     for calling the user-supplied callbacks.
+     *
+     * Parameters:
+     * resp - {<OpenLayers.Protocol.Response>}
+     * options - {Object} The map of options passed to the commit call.
+     */
+    callUserCallback: function(resp, options) {
+        var opt = options[resp.requestType];
+        if(opt && opt.callback) {
+            opt.callback.call(opt.scope, resp);
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Protocol.HTTP" 
+});
+/* ======================================================================
+    OpenLayers/Control/DragPan.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Control.js
+ * @requires OpenLayers/Handler/Drag.js
+ */
+
+/**
+ * Class: OpenLayers.Control.DragPan
+ * The DragPan control pans the map with a drag of the mouse.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.DragPan = OpenLayers.Class(OpenLayers.Control, {
+
+    /** 
+     * Property: type
+     * {OpenLayers.Control.TYPES}
+     */
+    type: OpenLayers.Control.TYPE_TOOL,
+    
+    /**
+     * Property: panned
+     * {Boolean} The map moved.
+     */
+    panned: false,
+    
+    /**
+     * Property: interval
+     * {Integer} The number of milliseconds that should ellapse before
+     *     panning the map again. Defaults to 0 milliseconds, which means that
+     *     no separate cycle is used for panning. In most cases you won't want
+     *     to change this value. For slow machines/devices larger values can be
+     *     tried out.
+     */
+    interval: 0,
+    
+    /**
+     * APIProperty: documentDrag
+     * {Boolean} If set to true, mouse dragging will continue even if the
+     *     mouse cursor leaves the map viewport. Default is false.
+     */
+    documentDrag: false,
+
+    /**
+     * Property: kinetic
+     * {<OpenLayers.Kinetic>} The OpenLayers.Kinetic object.
+     */
+    kinetic: null,
+
+    /**
+     * APIProperty: enableKinetic
+     * {Boolean} Set this option to enable "kinetic dragging". Can be
+     *     set to true or to an object. If set to an object this
+     *     object will be passed to the {<OpenLayers.Kinetic>}
+     *     constructor. Defaults to true.
+     *     To get kinetic dragging, ensure that OpenLayers/Kinetic.js is
+     *     included in your build config.
+     */
+    enableKinetic: true,
+
+    /**
+     * APIProperty: kineticInterval
+     * {Integer} Interval in milliseconds between 2 steps in the "kinetic
+     *     scrolling". Applies only if enableKinetic is set. Defaults
+     *     to 10 milliseconds.
+     */
+    kineticInterval: 10,
+
+
+    /**
+     * Method: draw
+     * Creates a Drag handler, using <panMap> and
+     * <panMapDone> as callbacks.
+     */    
+    draw: function() {
+        if (this.enableKinetic && OpenLayers.Kinetic) {
+            var config = {interval: this.kineticInterval};
+            if(typeof this.enableKinetic === "object") {
+                config = OpenLayers.Util.extend(config, this.enableKinetic);
+            }
+            this.kinetic = new OpenLayers.Kinetic(config);
+        }
+        this.handler = new OpenLayers.Handler.Drag(this, {
+                "move": this.panMap,
+                "done": this.panMapDone,
+                "down": this.panMapStart
+            }, {
+                interval: this.interval,
+                documentDrag: this.documentDrag
+            }
+        );
+    },
+
+    /**
+     * Method: panMapStart
+     */
+    panMapStart: function() {
+        if(this.kinetic) {
+            this.kinetic.begin();
+        }
+    },
+
+    /**
+    * Method: panMap
+    *
+    * Parameters:
+    * xy - {<OpenLayers.Pixel>} Pixel of the mouse position
+    */
+    panMap: function(xy) {
+        if(this.kinetic) {
+            this.kinetic.update(xy);
+        }
+        this.panned = true;
+        this.map.pan(
+            this.handler.last.x - xy.x,
+            this.handler.last.y - xy.y,
+            {dragging: true, animate: false}
+        );
+    },
+    
+    /**
+     * Method: panMapDone
+     * Finish the panning operation.  Only call setCenter (through <panMap>)
+     *     if the map has actually been moved.
+     *
+     * Parameters:
+     * xy - {<OpenLayers.Pixel>} Pixel of the mouse position
+     */
+    panMapDone: function(xy) {
+        if(this.panned) {
+            var res = null;
+            if (this.kinetic) {
+                res = this.kinetic.end(xy);
+            }
+            this.map.pan(
+                this.handler.last.x - xy.x,
+                this.handler.last.y - xy.y,
+                {dragging: !!res, animate: false}
+            );
+            if (res) {
+                var self = this;
+                this.kinetic.move(res, function(x, y, end) {
+                    self.map.pan(x, y, {dragging: !end, animate: false});
+                });
+            }
+            this.panned = false;
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Control.DragPan"
+});
+/* ======================================================================
+    OpenLayers/Control/PinchZoom.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Handler/Pinch.js
+ */
+
+/**
+ * Class: OpenLayers.Control.PinchZoom
+ *
+ * Inherits:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.PinchZoom = OpenLayers.Class(OpenLayers.Control, {
+
+    /** 
+     * Property: type
+     * {OpenLayers.Control.TYPES}
+     */
+    type: OpenLayers.Control.TYPE_TOOL,
+
+    /**
+     * Property: pinchOrigin
+     * {Object} Cached object representing the pinch start (in pixels).
+     */
+    pinchOrigin: null,    
+    
+    /**
+     * Property: currentCenter
+     * {Object} Cached object representing the latest pinch center (in pixels).
+     */
+    currentCenter: null,    
+
+    /**
+     * APIProperty: autoActivate
+     * {Boolean} Activate the control when it is added to a map.  Default is
+     *     true.
+     */
+    autoActivate: true,
+
+    /**
+     * APIProperty: preserveCenter
+     * {Boolean} Set this to true if you don't want the map center to change
+     *     while pinching. For example you may want to set preserveCenter to
+     *     true when the user location is being watched and you want to preserve
+     *     the user location at the center of the map even if he zooms in or
+     *     out using pinch. This property's value can be changed any time on an
+     *     existing instance. Default is false.
+     */
+    preserveCenter: false,
+    
+    /**
+     * APIProperty: handlerOptions
+     * {Object} Used to set non-default properties on the pinch handler
+     */
+
+    /**
+     * Constructor: OpenLayers.Control.PinchZoom
+     * Create a control for zooming with pinch gestures.  This works on devices
+     *     with multi-touch support.
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *                    the control
+     */
+    initialize: function(options) {
+        OpenLayers.Control.prototype.initialize.apply(this, arguments);
+        this.handler = new OpenLayers.Handler.Pinch(this, {
+            start: this.pinchStart,
+            move: this.pinchMove,
+            done: this.pinchDone
+        }, this.handlerOptions);
+    },
+    
+    /**
+     * Method: pinchStart
+     *
+     * Parameters:
+     * evt - {Event}
+     * pinchData - {Object} pinch data object related to the current touchmove
+     *     of the pinch gesture. This give us the current scale of the pinch.
+     */
+    pinchStart: function(evt, pinchData) {
+        var xy = (this.preserveCenter) ?
+            this.map.getPixelFromLonLat(this.map.getCenter()) : evt.xy;
+        this.pinchOrigin = xy;
+        this.currentCenter = xy;
+    },
+    
+    /**
+     * Method: pinchMove
+     *
+     * Parameters:
+     * evt - {Event}
+     * pinchData - {Object} pinch data object related to the current touchmove
+     *     of the pinch gesture. This give us the current scale of the pinch.
+     */
+    pinchMove: function(evt, pinchData) {
+        var scale = pinchData.scale;
+        var containerOrigin = this.map.layerContainerOriginPx;
+        var pinchOrigin = this.pinchOrigin;
+        var current = (this.preserveCenter) ?
+            this.map.getPixelFromLonLat(this.map.getCenter()) : evt.xy;
+
+        var dx = Math.round((containerOrigin.x + current.x - pinchOrigin.x) + (scale - 1) * (containerOrigin.x - pinchOrigin.x));
+        var dy = Math.round((containerOrigin.y + current.y - pinchOrigin.y) + (scale - 1) * (containerOrigin.y - pinchOrigin.y));
+
+        this.map.applyTransform(dx, dy, scale);
+        this.currentCenter = current;
+    },
+
+    /**
+     * Method: pinchDone
+     *
+     * Parameters:
+     * evt - {Event}
+     * start - {Object} pinch data object related to the touchstart event that
+     *     started the pinch gesture.
+     * last - {Object} pinch data object related to the last touchmove event
+     *     of the pinch gesture. This give us the final scale of the pinch.
+     */
+    pinchDone: function(evt, start, last) {
+        this.map.applyTransform();
+        var zoom = this.map.getZoomForResolution(this.map.getResolution() / last.scale, true);
+        if (zoom !== this.map.getZoom() || !this.currentCenter.equals(this.pinchOrigin)) {
+            var resolution = this.map.getResolutionForZoom(zoom);
+
+            var location = this.map.getLonLatFromPixel(this.pinchOrigin);
+            var zoomPixel = this.currentCenter;        
+            var size = this.map.getSize();
+
+            location.lon += resolution * ((size.w / 2) - zoomPixel.x);
+            location.lat -= resolution * ((size.h / 2) - zoomPixel.y);
+
+            // Force a reflow before calling setCenter. This is to work
+            // around an issue occuring in iOS.
+            //
+            // See https://github.com/openlayers/openlayers/pull/351.
+            //
+            // Without a reflow setting the layer container div's top left
+            // style properties to "0px" - as done in Map.moveTo when zoom
+            // is changed - won't actually correctly reposition the layer
+            // container div.
+            //
+            // Also, we need to use a statement that the Google Closure
+            // compiler won't optimize away.
+            this.map.div.clientWidth = this.map.div.clientWidth;
+
+            this.map.setCenter(location, zoom);
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Control.PinchZoom"
+
+});
+/* ======================================================================
+    OpenLayers/Handler/Click.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Handler.js
+ */
+
+/**
+ * Class: OpenLayers.Handler.Click
+ * A handler for mouse clicks.  The intention of this handler is to give
+ *     controls more flexibility with handling clicks.  Browsers trigger
+ *     click events twice for a double-click.  In addition, the mousedown,
+ *     mousemove, mouseup sequence fires a click event.  With this handler,
+ *     controls can decide whether to ignore clicks associated with a double
+ *     click.  By setting a <pixelTolerance>, controls can also ignore clicks
+ *     that include a drag.  Create a new instance with the
+ *     <OpenLayers.Handler.Click> constructor.
+ * 
+ * Inherits from:
+ *  - <OpenLayers.Handler> 
+ */
+OpenLayers.Handler.Click = OpenLayers.Class(OpenLayers.Handler, {
+    /**
+     * APIProperty: delay
+     * {Number} Number of milliseconds between clicks before the event is
+     *     considered a double-click.
+     */
+    delay: 300,
+    
+    /**
+     * APIProperty: single
+     * {Boolean} Handle single clicks.  Default is true.  If false, clicks
+     * will not be reported.  If true, single-clicks will be reported.
+     */
+    single: true,
+    
+    /**
+     * APIProperty: double
+     * {Boolean} Handle double-clicks.  Default is false.
+     */
+    'double': false,
+    
+    /**
+     * APIProperty: pixelTolerance
+     * {Number} Maximum number of pixels between mouseup and mousedown for an
+     *     event to be considered a click.  Default is 0.  If set to an
+     *     integer value, clicks with a drag greater than the value will be
+     *     ignored.  This property can only be set when the handler is
+     *     constructed.
+     */
+    pixelTolerance: 0,
+        
+    /**
+     * APIProperty: dblclickTolerance
+     * {Number} Maximum distance in pixels between clicks for a sequence of 
+     *     events to be considered a double click.  Default is 13.  If the
+     *     distance between two clicks is greater than this value, a double-
+     *     click will not be fired.
+     */
+    dblclickTolerance: 13,
+        
+    /**
+     * APIProperty: stopSingle
+     * {Boolean} Stop other listeners from being notified of clicks.  Default
+     *     is false.  If true, any listeners registered before this one for 
+     *     click or rightclick events will not be notified.
+     */
+    stopSingle: false,
+    
+    /**
+     * APIProperty: stopDouble
+     * {Boolean} Stop other listeners from being notified of double-clicks.
+     *     Default is false.  If true, any click listeners registered before
+     *     this one will not be notified of *any* double-click events.
+     * 
+     * The one caveat with stopDouble is that given a map with two click
+     *     handlers, one with stopDouble true and the other with stopSingle
+     *     true, the stopSingle handler should be activated last to get
+     *     uniform cross-browser performance.  Since IE triggers one click
+     *     with a dblclick and FF triggers two, if a stopSingle handler is
+     *     activated first, all it gets in IE is a single click when the
+     *     second handler stops propagation on the dblclick.
+     */
+    stopDouble: false,
+
+    /**
+     * Property: timerId
+     * {Number} The id of the timeout waiting to clear the <delayedCall>.
+     */
+    timerId: null,
+    
+    /**
+     * Property: down
+     * {Object} Object that store relevant information about the last
+     *     mousedown or touchstart. Its 'xy' OpenLayers.Pixel property gives
+     *     the average location of the mouse/touch event. Its 'touches'
+     *     property records clientX/clientY of each touches.
+     */
+    down: null,
+
+    /**
+     * Property: last
+     * {Object} Object that store relevant information about the last
+     *     mousemove or touchmove. Its 'xy' OpenLayers.Pixel property gives
+     *     the average location of the mouse/touch event. Its 'touches'
+     *     property records clientX/clientY of each touches.
+     */
+    last: null,
+
+    /** 
+     * Property: first
+     * {Object} When waiting for double clicks, this object will store 
+     *     information about the first click in a two click sequence.
+     */
+    first: null,
+
+    /**
+     * Property: rightclickTimerId
+     * {Number} The id of the right mouse timeout waiting to clear the 
+     *     <delayedEvent>.
+     */
+    rightclickTimerId: null,
+    
+    /**
+     * Constructor: OpenLayers.Handler.Click
+     * Create a new click handler.
+     * 
+     * Parameters:
+     * control - {<OpenLayers.Control>} The control that is making use of
+     *     this handler.  If a handler is being used without a control, the
+     *     handler's setMap method must be overridden to deal properly with
+     *     the map.
+     * callbacks - {Object} An object with keys corresponding to callbacks
+     *     that will be called by the handler. The callbacks should
+     *     expect to recieve a single argument, the click event.
+     *     Callbacks for 'click' and 'dblclick' are supported.
+     * options - {Object} Optional object whose properties will be set on the
+     *     handler.
+     */
+    
+    /**
+     * Method: touchstart
+     * Handle touchstart.
+     *
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    touchstart: function(evt) {
+        this.startTouch();
+        this.down = this.getEventInfo(evt);
+        this.last = this.getEventInfo(evt);
+        return true;
+    },
+    
+    /**
+     * Method: touchmove
+     *    Store position of last move, because touchend event can have
+     *    an empty "touches" property.
+     *
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    touchmove: function(evt) {
+        this.last = this.getEventInfo(evt);
+        return true;
+    },
+
+    /**
+     * Method: touchend
+     *   Correctly set event xy property, and add lastTouches to have
+     *   touches property from last touchstart or touchmove
+     *
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    touchend: function(evt) {
+        // touchstart may not have been allowed to propagate
+        if (this.down) {
+            evt.xy = this.last.xy;
+            evt.lastTouches = this.last.touches;
+            this.handleSingle(evt);
+            this.down = null;
+        }
+        return true;
+    },
+
+    /**
+     * Method: mousedown
+     * Handle mousedown.
+     *
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    mousedown: function(evt) {
+        this.down = this.getEventInfo(evt);
+        this.last = this.getEventInfo(evt);
+        return true;
+    },
+
+    /**
+     * Method: mouseup
+     * Handle mouseup.  Installed to support collection of right mouse events.
+     * 
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    mouseup: function (evt) {
+        var propagate = true;
+
+        // Collect right mouse clicks from the mouseup
+        //  IE - ignores the second right click in mousedown so using
+        //  mouseup instead
+        if (this.checkModifiers(evt) && this.control.handleRightClicks &&
+           OpenLayers.Event.isRightClick(evt)) {
+            propagate = this.rightclick(evt);
+        }
+
+        return propagate;
+    },
+    
+    /**
+     * Method: rightclick
+     * Handle rightclick.  For a dblrightclick, we get two clicks so we need 
+     *     to always register for dblrightclick to properly handle single 
+     *     clicks.
+     *     
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    rightclick: function(evt) {
+        if(this.passesTolerance(evt)) {
+           if(this.rightclickTimerId != null) {
+                //Second click received before timeout this must be 
+                // a double click
+                this.clearTimer();
+                this.callback('dblrightclick', [evt]);
+                return !this.stopDouble;
+            } else { 
+                //Set the rightclickTimerId, send evt only if double is 
+                // true else trigger single
+                var clickEvent = this['double'] ?
+                    OpenLayers.Util.extend({}, evt) : 
+                    this.callback('rightclick', [evt]);
+
+                var delayedRightCall = OpenLayers.Function.bind(
+                    this.delayedRightCall, 
+                    this, 
+                    clickEvent
+                );
+                this.rightclickTimerId = window.setTimeout(
+                    delayedRightCall, this.delay
+                );
+            } 
+        }
+        return !this.stopSingle;
+    },
+    
+    /**
+     * Method: delayedRightCall
+     * Sets <rightclickTimerId> to null.  And optionally triggers the 
+     *     rightclick callback if evt is set.
+     */
+    delayedRightCall: function(evt) {
+        this.rightclickTimerId = null;
+        if (evt) {
+           this.callback('rightclick', [evt]);
+        }
+    },
+    
+    /**
+     * Method: click
+     * Handle click events from the browser.  This is registered as a listener
+     *     for click events and should not be called from other events in this
+     *     handler.
+     *
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    click: function(evt) {
+        if (!this.last) {
+            this.last = this.getEventInfo(evt);
+        }
+        this.handleSingle(evt);
+        return !this.stopSingle;
+    },
+
+    /**
+     * Method: dblclick
+     * Handle dblclick.  For a dblclick, we get two clicks in some browsers
+     *     (FF) and one in others (IE).  So we need to always register for
+     *     dblclick to properly handle single clicks.  This method is registered
+     *     as a listener for the dblclick browser event.  It should *not* be
+     *     called by other methods in this handler.
+     *     
+     * Returns:
+     * {Boolean} Continue propagating this event.
+     */
+    dblclick: function(evt) {
+        this.handleDouble(evt);
+        return !this.stopDouble;
+    },
+    
+    /** 
+     * Method: handleDouble
+     * Handle double-click sequence.
+     */
+    handleDouble: function(evt) {
+        if (this.passesDblclickTolerance(evt)) {
+            if (this["double"]) {
+                this.callback("dblclick", [evt]);
+            }
+            // to prevent a dblclick from firing the click callback in IE
+            this.clearTimer();
+        }
+    },
+    
+    /** 
+     * Method: handleSingle
+     * Handle single click sequence.
+     */
+    handleSingle: function(evt) {
+        if (this.passesTolerance(evt)) {
+            if (this.timerId != null) {
+                // already received a click
+                if (this.last.touches && this.last.touches.length === 1) {
+                    // touch device, no dblclick event - this may be a double
+                    if (this["double"]) {
+                        // on Android don't let the browser zoom on the page
+                        OpenLayers.Event.preventDefault(evt);
+                    }
+                    this.handleDouble(evt);
+                }
+                // if we're not in a touch environment we clear the click timer
+                // if we've got a second touch, we'll get two touchend events
+                if (!this.last.touches || this.last.touches.length !== 2) {
+                    this.clearTimer();
+                }
+            } else {
+                // remember the first click info so we can compare to the second
+                this.first = this.getEventInfo(evt);
+                // set the timer, send evt only if single is true
+                //use a clone of the event object because it will no longer 
+                //be a valid event object in IE in the timer callback
+                var clickEvent = this.single ?
+                    OpenLayers.Util.extend({}, evt) : null;
+                this.queuePotentialClick(clickEvent);
+            }
+        }
+    },
+    
+    /** 
+     * Method: queuePotentialClick
+     * This method is separated out largely to make testing easier (so we
+     *     don't have to override window.setTimeout)
+     */
+    queuePotentialClick: function(evt) {
+        this.timerId = window.setTimeout(
+            OpenLayers.Function.bind(this.delayedCall, this, evt),
+            this.delay
+        );
+    },
+
+    /**
+     * Method: passesTolerance
+     * Determine whether the event is within the optional pixel tolerance.  Note
+     *     that the pixel tolerance check only works if mousedown events get to
+     *     the listeners registered here.  If they are stopped by other elements,
+     *     the <pixelTolerance> will have no effect here (this method will always
+     *     return true).
+     *
+     * Returns:
+     * {Boolean} The click is within the pixel tolerance (if specified).
+     */
+    passesTolerance: function(evt) {
+        var passes = true;
+        if (this.pixelTolerance != null && this.down && this.down.xy) {
+            passes = this.pixelTolerance >= this.down.xy.distanceTo(evt.xy);
+            // for touch environments, we also enforce that all touches
+            // start and end within the given tolerance to be considered a click
+            if (passes && this.touch && 
+                this.down.touches.length === this.last.touches.length) {
+                // the touchend event doesn't come with touches, so we check
+                // down and last
+                for (var i=0, ii=this.down.touches.length; i<ii; ++i) {
+                    if (this.getTouchDistance(
+                            this.down.touches[i], 
+                            this.last.touches[i]
+                        ) > this.pixelTolerance) {
+                        passes = false;
+                        break;
+                    }
+                }
+            }
+        }
+        return passes;
+    },
+    
+    /** 
+     * Method: getTouchDistance
+     *
+     * Returns:
+     * {Boolean} The pixel displacement between two touches.
+     */
+    getTouchDistance: function(from, to) {
+        return Math.sqrt(
+            Math.pow(from.clientX - to.clientX, 2) +
+            Math.pow(from.clientY - to.clientY, 2)
+        );
+    },
+    
+    /**
+     * Method: passesDblclickTolerance
+     * Determine whether the event is within the optional double-cick pixel 
+     *     tolerance.
+     *
+     * Returns:
+     * {Boolean} The click is within the double-click pixel tolerance.
+     */
+    passesDblclickTolerance: function(evt) {
+        var passes = true;
+        if (this.down && this.first) {
+            passes = this.down.xy.distanceTo(this.first.xy) <= this.dblclickTolerance;
+        }
+        return passes;
+    },
+
+    /**
+     * Method: clearTimer
+     * Clear the timer and set <timerId> to null.
+     */
+    clearTimer: function() {
+        if (this.timerId != null) {
+            window.clearTimeout(this.timerId);
+            this.timerId = null;
+        }
+        if (this.rightclickTimerId != null) {
+            window.clearTimeout(this.rightclickTimerId);
+            this.rightclickTimerId = null;
+        }
+    },
+    
+    /**
+     * Method: delayedCall
+     * Sets <timerId> to null.  And optionally triggers the click callback if
+     *     evt is set.
+     */
+    delayedCall: function(evt) {
+        this.timerId = null;
+        if (evt) {
+            this.callback("click", [evt]);
+        }
+    },
+
+    /**
+     * Method: getEventInfo
+     * This method allows us to store event information without storing the
+     *     actual event.  In touch devices (at least), the same event is 
+     *     modified between touchstart, touchmove, and touchend.
+     *
+     * Returns:
+     * {Object} An object with event related info.
+     */
+    getEventInfo: function(evt) {
+        var touches;
+        if (evt.touches) {
+            var len = evt.touches.length;
+            touches = new Array(len);
+            var touch;
+            for (var i=0; i<len; i++) {
+                touch = evt.touches[i];
+                touches[i] = {
+                    clientX: touch.olClientX,
+                    clientY: touch.olClientY
+                };
+            }
+        }
+        return {
+            xy: evt.xy,
+            touches: touches
+        };
+    },
+
+    /**
+     * APIMethod: deactivate
+     * Deactivate the handler.
+     *
+     * Returns:
+     * {Boolean} The handler was successfully deactivated.
+     */
+    deactivate: function() {
+        var deactivated = false;
+        if(OpenLayers.Handler.prototype.deactivate.apply(this, arguments)) {
+            this.clearTimer();
+            this.down = null;
+            this.first = null;
+            this.last = null;
+            deactivated = true;
+        }
+        return deactivated;
+    },
+
+    CLASS_NAME: "OpenLayers.Handler.Click"
+});
+/* ======================================================================
+    OpenLayers/Control/TouchNavigation.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Control/DragPan.js
+ * @requires OpenLayers/Control/PinchZoom.js
+ * @requires OpenLayers/Handler/Click.js
+ */
+
+/**
+ * Class: OpenLayers.Control.TouchNavigation
+ * The navigation control handles map browsing with touch events (dragging,
+ *     double-tapping, tap with two fingers, and pinch zoom).  Create a new 
+ *     control with the <OpenLayers.Control.TouchNavigation> constructor.
+ *
+ * If you’re only targeting touch enabled devices with your mapping application,
+ *     you can create a map with only a TouchNavigation control. The 
+ *     <OpenLayers.Control.Navigation> control is mobile ready by default, but 
+ *     you can generate a smaller build of the library by only including this
+ *     touch navigation control if you aren't concerned about mouse interaction.
+ *
+ * Inherits:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.TouchNavigation = OpenLayers.Class(OpenLayers.Control, {
+
+    /**
+     * Property: dragPan
+     * {<OpenLayers.Control.DragPan>}
+     */
+    dragPan: null,
+
+    /**
+     * APIProperty: dragPanOptions
+     * {Object} Options passed to the DragPan control.
+     */
+    dragPanOptions: null,
+
+    /**
+     * Property: pinchZoom
+     * {<OpenLayers.Control.PinchZoom>}
+     */
+    pinchZoom: null,
+
+    /**
+     * APIProperty: pinchZoomOptions
+     * {Object} Options passed to the PinchZoom control.
+     */
+    pinchZoomOptions: null,
+
+    /**
+     * APIProperty: clickHandlerOptions
+     * {Object} Options passed to the Click handler.
+     */
+    clickHandlerOptions: null,
+
+    /**
+     * APIProperty: documentDrag
+     * {Boolean} Allow panning of the map by dragging outside map viewport.
+     *     Default is false.
+     */
+    documentDrag: false,
+
+    /**
+     * APIProperty: autoActivate
+     * {Boolean} Activate the control when it is added to a map.  Default is
+     *     true.
+     */
+    autoActivate: true,
+
+    /**
+     * Constructor: OpenLayers.Control.TouchNavigation
+     * Create a new navigation control
+     *
+     * Parameters:
+     * options - {Object} An optional object whose properties will be set on
+     *                    the control
+     */
+    initialize: function(options) {
+        this.handlers = {};
+        OpenLayers.Control.prototype.initialize.apply(this, arguments);
+    },
+
+    /**
+     * Method: destroy
+     * The destroy method is used to perform any clean up before the control
+     * is dereferenced.  Typically this is where event listeners are removed
+     * to prevent memory leaks.
+     */
+    destroy: function() {
+        this.deactivate();
+        if(this.dragPan) {
+            this.dragPan.destroy();
+        }
+        this.dragPan = null;
+        if (this.pinchZoom) {
+            this.pinchZoom.destroy();
+            delete this.pinchZoom;
+        }
+        OpenLayers.Control.prototype.destroy.apply(this,arguments);
+    },
+
+    /**
+     * Method: activate
+     */
+    activate: function() {
+        if(OpenLayers.Control.prototype.activate.apply(this,arguments)) {
+            this.dragPan.activate();
+            this.handlers.click.activate();
+            this.pinchZoom.activate();
+            return true;
+        }
+        return false;
+    },
+
+    /**
+     * Method: deactivate
+     */
+    deactivate: function() {
+        if(OpenLayers.Control.prototype.deactivate.apply(this,arguments)) {
+            this.dragPan.deactivate();
+            this.handlers.click.deactivate();
+            this.pinchZoom.deactivate();
+            return true;
+        }
+        return false;
+    },
+    
+    /**
+     * Method: draw
+     */
+    draw: function() {
+        var clickCallbacks = {
+            click: this.defaultClick,
+            dblclick: this.defaultDblClick
+        };
+        var clickOptions = OpenLayers.Util.extend({
+            "double": true,
+            stopDouble: true,
+            pixelTolerance: 2
+        }, this.clickHandlerOptions);
+        this.handlers.click = new OpenLayers.Handler.Click(
+            this, clickCallbacks, clickOptions
+        );
+        this.dragPan = new OpenLayers.Control.DragPan(
+            OpenLayers.Util.extend({
+                map: this.map,
+                documentDrag: this.documentDrag
+            }, this.dragPanOptions)
+        );
+        this.dragPan.draw();
+        this.pinchZoom = new OpenLayers.Control.PinchZoom(
+            OpenLayers.Util.extend({map: this.map}, this.pinchZoomOptions)
+        );
+    },
+
+    /**
+     * Method: defaultClick
+     *
+     * Parameters:
+     * evt - {Event}
+     */
+    defaultClick: function (evt) {
+        if(evt.lastTouches && evt.lastTouches.length == 2) {
+            this.map.zoomOut();
+        }
+    },
+
+    /**
+     * Method: defaultDblClick
+     *
+     * Parameters:
+     * evt - {Event}
+     */
+    defaultDblClick: function (evt) {
+        this.map.zoomTo(this.map.zoom + 1, evt.xy);
+    },
+
+    CLASS_NAME: "OpenLayers.Control.TouchNavigation"
+});
+/* ======================================================================
+    OpenLayers/Protocol/WFS/v1_0_0.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+/**
+ * @requires OpenLayers/Protocol/WFS/v1.js
+ * @requires OpenLayers/Format/WFST/v1_0_0.js
+ */
+
+/**
+ * Class: OpenLayers.Protocol.WFS.v1_0_0
+ * A WFS v1.0.0 protocol for vector layers.  Create a new instance with the
+ *     <OpenLayers.Protocol.WFS.v1_0_0> constructor.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Protocol.WFS.v1>
+ */
+OpenLayers.Protocol.WFS.v1_0_0 = OpenLayers.Class(OpenLayers.Protocol.WFS.v1, {
+    
+    /**
+     * Property: version
+     * {String} WFS version number.
+     */
+    version: "1.0.0",
+    
+    /**
+     * Constructor: OpenLayers.Protocol.WFS.v1_0_0
+     * A class for giving layers WFS v1.0.0 protocol.
+     *
+     * Parameters:
+     * options - {Object} Optional object whose properties will be set on the
+     *     instance.
+     *
+     * Valid options properties:
+     * featureType - {String} Local (without prefix) feature typeName (required).
+     * featureNS - {String} Feature namespace (optional).
+     * featurePrefix - {String} Feature namespace alias (optional - only used
+     *     if featureNS is provided).  Default is 'feature'.
+     * geometryName - {String} Name of geometry attribute.  Default is 'the_geom'.
+     */
+   
+    CLASS_NAME: "OpenLayers.Protocol.WFS.v1_0_0" 
+});
+/* ======================================================================
+    OpenLayers/TileManager.js
+   ====================================================================== */
+
+/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for
+ * full list of contributors). Published under the 2-clause BSD license.
+ * See license.txt in the OpenLayers distribution or repository for the
+ * full text of the license. */
+
+
+/**
+ * @requires OpenLayers/Util.js
+ * @requires OpenLayers/BaseTypes.js
+ * @requires OpenLayers/BaseTypes/Element.js
+ * @requires OpenLayers/Layer/Grid.js
+ * @requires OpenLayers/Tile/Image.js
+ */
+
+/**
+ * Class: OpenLayers.TileManager
+ * Provides queueing of image requests and caching of image elements.
+ *
+ * Queueing avoids unnecessary image requests while changing zoom levels
+ * quickly, and helps improve dragging performance on mobile devices that show
+ * a lag in dragging when loading of new images starts. <zoomDelay> and
+ * <moveDelay> are the configuration options to control this behavior.
+ *
+ * Caching avoids setting the src on image elements for images that have already
+ * been used. Several maps can share a TileManager instance, in which case each
+ * map gets its own tile queue, but all maps share the same tile cache.
+ */
+OpenLayers.TileManager = OpenLayers.Class({
+    
+    /**
+     * APIProperty: cacheSize
+     * {Number} Number of image elements to keep referenced in this instance's
+     * cache for fast reuse. Default is 256.
+     */
+    cacheSize: 256,
+
+    /**
+     * APIProperty: tilesPerFrame
+     * {Number} Number of queued tiles to load per frame (see <frameDelay>).
+     *     Default is 2.
+     */
+    tilesPerFrame: 2,
+
+    /**
+     * APIProperty: frameDelay
+     * {Number} Delay between tile loading frames (see <tilesPerFrame>) in
+     *     milliseconds. Default is 16.
+     */
+    frameDelay: 16,
+
+    /**
+     * APIProperty: moveDelay
+     * {Number} Delay in milliseconds after a map's move event before loading
+     * tiles. Default is 100.
+     */
+    moveDelay: 100,
+    
+    /**
+     * APIProperty: zoomDelay
+     * {Number} Delay in milliseconds after a map's zoomend event before loading
+     * tiles. Default is 200.
+     */
+    zoomDelay: 200,
+    
+    /**
+     * Property: maps
+     * {Array(<OpenLayers.Map>)} The maps to manage tiles on.
+     */
+    maps: null,
+    
+    /**
+     * Property: tileQueueId
+     * {Object} The ids of the <drawTilesFromQueue> loop, keyed by map id.
+     */
+    tileQueueId: null,
+
+    /**
+     * Property: tileQueue
+     * {Object(Array(<OpenLayers.Tile>))} Tiles queued for drawing, keyed by
+     * map id.
+     */
+    tileQueue: null,
+    
+    /**
+     * Property: tileCache
+     * {Object} Cached image elements, keyed by URL.
+     */
+    tileCache: null,
+    
+    /**
+     * Property: tileCacheIndex
+     * {Array(String)} URLs of cached tiles. First entry is the least recently
+     *    used.
+     */
+    tileCacheIndex: null,    
+    
+    /** 
+     * Constructor: OpenLayers.TileManager
+     * Constructor for a new <OpenLayers.TileManager> instance.
+     * 
+     * Parameters:
+     * options - {Object} Configuration for this instance.
+     */   
+    initialize: function(options) {
+        OpenLayers.Util.extend(this, options);
+        this.maps = [];
+        this.tileQueueId = {};
+        this.tileQueue = {};
+        this.tileCache = {};
+        this.tileCacheIndex = [];
+    },
+    
+    /**
+     * Method: addMap
+     * Binds this instance to a map
+     *
+     * Parameters:
+     * map - {<OpenLayers.Map>}
+     */
+    addMap: function(map) {
+        if (this._destroyed || !OpenLayers.Layer.Grid) {
+            return;
+        }
+        this.maps.push(map);
+        this.tileQueue[map.id] = [];
+        for (var i=0, ii=map.layers.length; i<ii; ++i) {
+            this.addLayer({layer: map.layers[i]});
+        }
+        map.events.on({
+            move: this.move,
+            zoomend: this.zoomEnd,
+            changelayer: this.changeLayer,
+            addlayer: this.addLayer,
+            preremovelayer: this.removeLayer,
+            scope: this
+        });
+    },
+    
+    /**
+     * Method: removeMap
+     * Unbinds this instance from a map
+     *
+     * Parameters:
+     * map - {<OpenLayers.Map>}
+     */
+    removeMap: function(map) {
+        if (this._destroyed || !OpenLayers.Layer.Grid) {
+            return;
+        }
+        window.clearTimeout(this.tileQueueId[map.id]);
+        if (map.layers) {
+            for (var i=0, ii=map.layers.length; i<ii; ++i) {
+                this.removeLayer({layer: map.layers[i]});
+            }
+        }
+        if (map.events) {
+            map.events.un({
+                move: this.move,
+                zoomend: this.zoomEnd,
+                changelayer: this.changeLayer,
+                addlayer: this.addLayer,
+                preremovelayer: this.removeLayer,
+                scope: this
+            });
+        }
+        delete this.tileQueue[map.id];
+        delete this.tileQueueId[map.id];
+        OpenLayers.Util.removeItem(this.maps, map);
+    },
+    
+    /**
+     * Method: move
+     * Handles the map's move event
+     *
+     * Parameters:
+     * evt - {Object} Listener argument
+     */
+    move: function(evt) {
+        this.updateTimeout(evt.object, this.moveDelay, true);
+    },
+    
+    /**
+     * Method: zoomEnd
+     * Handles the map's zoomEnd event
+     *
+     * Parameters:
+     * evt - {Object} Listener argument
+     */
+    zoomEnd: function(evt) {
+        this.updateTimeout(evt.object, this.zoomDelay);
+    },
+    
+    /**
+     * Method: changeLayer
+     * Handles the map's changeLayer event
+     *
+     * Parameters:
+     * evt - {Object} Listener argument
+     */
+    changeLayer: function(evt) {
+        if (evt.property === 'visibility' || evt.property === 'params') {
+            this.updateTimeout(evt.object, 0);
+        }
+    },
+    
+    /**
+     * Method: addLayer
+     * Handles the map's addlayer event
+     *
+     * Parameters:
+     * evt - {Object} The listener argument
+     */
+    addLayer: function(evt) {
+        var layer = evt.layer;
+        if (layer instanceof OpenLayers.Layer.Grid) {
+            layer.events.on({
+                addtile: this.addTile,
+                retile: this.clearTileQueue,
+                scope: this
+            });
+            var i, j, tile;
+            for (i=layer.grid.length-1; i>=0; --i) {
+                for (j=layer.grid[i].length-1; j>=0; --j) {
+                    tile = layer.grid[i][j];
+                    this.addTile({tile: tile});
+                    if (tile.url && !tile.imgDiv) {
+                        this.manageTileCache({object: tile});
+                    }
+                }
+            }
+        }
+    },
+    
+    /**
+     * Method: removeLayer
+     * Handles the map's preremovelayer event
+     *
+     * Parameters:
+     * evt - {Object} The listener argument
+     */
+    removeLayer: function(evt) {
+        var layer = evt.layer;
+        if (layer instanceof OpenLayers.Layer.Grid) {
+            this.clearTileQueue({object: layer});
+            if (layer.events) {
+                layer.events.un({
+                    addtile: this.addTile,
+                    retile: this.clearTileQueue,
+                    scope: this
+                });
+            }
+            if (layer.grid) {
+                var i, j, tile;
+                for (i=layer.grid.length-1; i>=0; --i) {
+                    for (j=layer.grid[i].length-1; j>=0; --j) {
+                        tile = layer.grid[i][j];
+                        this.unloadTile({object: tile});
+                    }
+                }
+            }
+        }
+    },
+    
+    /**
+     * Method: updateTimeout
+     * Applies the <moveDelay> or <zoomDelay> to the <drawTilesFromQueue> loop,
+     * and schedules more queue processing after <frameDelay> if there are still
+     * tiles in the queue.
+     *
+     * Parameters:
+     * map - {<OpenLayers.Map>} The map to update the timeout for
+     * delay - {Number} The delay to apply
+     * nice - {Boolean} If true, the timeout function will only be created if
+     *     the tilequeue is not empty. This is used by the move handler to
+     *     avoid impacts on dragging performance. For other events, the tile
+     *     queue may not be populated yet, so we need to set the timer
+     *     regardless of the queue size.
+     */
+    updateTimeout: function(map, delay, nice) {
+        window.clearTimeout(this.tileQueueId[map.id]);
+        var tileQueue = this.tileQueue[map.id];
+        if (!nice || tileQueue.length) {
+            this.tileQueueId[map.id] = window.setTimeout(
+                OpenLayers.Function.bind(function() {
+                    this.drawTilesFromQueue(map);
+                    if (tileQueue.length) {
+                        this.updateTimeout(map, this.frameDelay);
+                    }
+                }, this), delay
+            );
+        }
+    },
+    
+    /**
+     * Method: addTile
+     * Listener for the layer's addtile event
+     *
+     * Parameters:
+     * evt - {Object} The listener argument
+     */
+    addTile: function(evt) {
+        if (evt.tile instanceof OpenLayers.Tile.Image) {
+            evt.tile.events.on({
+                beforedraw: this.queueTileDraw,
+                beforeload: this.manageTileCache,
+                loadend: this.addToCache,
+                unload: this.unloadTile,
+                scope: this
+            });        
+        } else {
+            // Layer has the wrong tile type, so don't handle it any longer
+            this.removeLayer({layer: evt.tile.layer});
+        }
+    },
+    
+    /**
+     * Method: unloadTile
+     * Listener for the tile's unload event
+     *
+     * Parameters:
+     * evt - {Object} The listener argument
+     */
+    unloadTile: function(evt) {
+        var tile = evt.object;
+        tile.events.un({
+            beforedraw: this.queueTileDraw,
+            beforeload: this.manageTileCache,
+            loadend: this.addToCache,
+            unload: this.unloadTile,
+            scope: this
+        });
+        OpenLayers.Util.removeItem(this.tileQueue[tile.layer.map.id], tile);
+    },
+    
+    /**
+     * Method: queueTileDraw
+     * Adds a tile to the queue that will draw it.
+     *
+     * Parameters:
+     * evt - {Object} Listener argument of the tile's beforedraw event
+     */
+    queueTileDraw: function(evt) {
+        var tile = evt.object;
+        var queued = false;
+        var layer = tile.layer;
+        var url = layer.getURL(tile.bounds);
+        var img = this.tileCache[url];
+        if (img && img.className !== 'olTileImage') {
+            // cached image no longer valid, e.g. because we're olTileReplacing
+            delete this.tileCache[url];
+            OpenLayers.Util.removeItem(this.tileCacheIndex, url);
+            img = null;
+        }
+        // queue only if image with same url not cached already
+        if (layer.url && (layer.async || !img)) {
+            // add to queue only if not in queue already
+            var tileQueue = this.tileQueue[layer.map.id];
+            if (!~OpenLayers.Util.indexOf(tileQueue, tile)) {
+                tileQueue.push(tile);
+            }
+            queued = true;
+        }
+        return !queued;
+    },
+    
+    /**
+     * Method: drawTilesFromQueue
+     * Draws tiles from the tileQueue, and unqueues the tiles
+     */
+    drawTilesFromQueue: function(map) {
+        var tileQueue = this.tileQueue[map.id];
+        var limit = this.tilesPerFrame;
+        var animating = map.zoomTween && map.zoomTween.playing;
+        while (!animating && tileQueue.length && limit) {
+            tileQueue.shift().draw(true);
+            --limit;
+        }
+    },
+    
+    /**
+     * Method: manageTileCache
+     * Adds, updates, removes and fetches cache entries.
+     *
+     * Parameters:
+     * evt - {Object} Listener argument of the tile's beforeload event
+     */
+    manageTileCache: function(evt) {
+        var tile = evt.object;
+        var img = this.tileCache[tile.url];
+        if (img) {
+          // if image is on its layer's backbuffer, remove it from backbuffer
+          if (img.parentNode &&
+                  OpenLayers.Element.hasClass(img.parentNode, 'olBackBuffer')) {
+              img.parentNode.removeChild(img);
+              img.id = null;
+          }
+          // only use image from cache if it is not on a layer already
+          if (!img.parentNode) {
+              img.style.visibility = 'hidden';
+              img.style.opacity = 0;
+              tile.setImage(img);
+              // LRU - move tile to the end of the array to mark it as the most
+              // recently used
+              OpenLayers.Util.removeItem(this.tileCacheIndex, tile.url);
+              this.tileCacheIndex.push(tile.url);
+          }
+        }
+    },
+    
+    /**
+     * Method: addToCache
+     *
+     * Parameters:
+     * evt - {Object} Listener argument for the tile's loadend event
+     */
+    addToCache: function(evt) {
+        var tile = evt.object;
+        if (!this.tileCache[tile.url]) {
+            if (!OpenLayers.Element.hasClass(tile.imgDiv, 'olImageLoadError')) {
+                if (this.tileCacheIndex.length >= this.cacheSize) {
+                    delete this.tileCache[this.tileCacheIndex[0]];
+                    this.tileCacheIndex.shift();
+                }
+                this.tileCache[tile.url] = tile.imgDiv;
+                this.tileCacheIndex.push(tile.url);
+            }
+        }
+    },
+
+    /**
+     * Method: clearTileQueue
+     * Clears the tile queue from tiles of a specific layer
+     *
+     * Parameters:
+     * evt - {Object} Listener argument of the layer's retile event
+     */
+    clearTileQueue: function(evt) {
+        var layer = evt.object;
+        var tileQueue = this.tileQueue[layer.map.id];
+        for (var i=tileQueue.length-1; i>=0; --i) {
+            if (tileQueue[i].layer === layer) {
+                tileQueue.splice(i, 1);
+            }
+        }
+    },
+    
+    /**
+     * Method: destroy
+     */
+    destroy: function() {
+        for (var i=this.maps.length-1; i>=0; --i) {
+            this.removeMap(this.maps[i]);
+        }
+        this.maps = null;
+        this.tileQueue = null;
+        this.tileQueueId = null;
+        this.tileCache = null;
+        this.tileCacheIndex = null;
+        this._destroyed = true;
+    }
+
+});