Upgrading openlayers to 3.x

1 files changed, 0 insertions, 1773 deletions

diff --git a/misc/openlayers/lib/OpenLayers/Util.js b/misc/openlayers/lib/OpenLayers/Util.js
deleted file mode 100644
index f659d3e..0000000
--- a/misc/openlayers/lib/OpenLayers/Util.js
+++ /dev/null
@@ -1,1773 +0,0 @@
-/* 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;
-};
-