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diff --git a/misc/openlayers/lib/OpenLayers/Control/Pan.js b/misc/openlayers/lib/OpenLayers/Control/Pan.js
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+/* 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/Button.js
+ */
+
+/**
+ * Class: OpenLayers.Control.Pan
+ * The Pan control is a single button to pan the map in one direction. For
+ * a more complete control see <OpenLayers.Control.PanPanel>.
+ *
+ * Inherits from:
+ *  - <OpenLayers.Control>
+ */
+OpenLayers.Control.Pan = OpenLayers.Class(OpenLayers.Control.Button, {
+
+    /** 
+     * APIProperty: slideFactor
+     * {Integer} Number of pixels by which we'll pan the map in any direction 
+     *     on clicking the arrow buttons, defaults to 50.  If you want to pan
+     *     by some ratio of the map dimensions, use <slideRatio> instead.
+     */
+    slideFactor: 50,
+
+    /** 
+     * APIProperty: slideRatio
+     * {Number} The fraction of map width/height by which we'll pan the map            
+     *     on clicking the arrow buttons.  Default is null.  If set, will
+     *     override <slideFactor>. E.g. if slideRatio is .5, then Pan Up will
+     *     pan up half the map height. 
+     */
+    slideRatio: null,
+
+    /** 
+     * Property: direction
+     * {String} in {'North', 'South', 'East', 'West'}
+     */
+    direction: null,
+
+    /**
+     * Constructor: OpenLayers.Control.Pan 
+     * Control which handles the panning (in any of the cardinal directions)
+     *     of the map by a set px distance. 
+     *
+     * Parameters:
+     * direction - {String} The direction this button should pan.
+     * options - {Object} An optional object whose properties will be used
+     *     to extend the control.
+     */
+    initialize: function(direction, options) {
+    
+        this.direction = direction;
+        this.CLASS_NAME += this.direction;
+        
+        OpenLayers.Control.prototype.initialize.apply(this, [options]);
+    },
+    
+    /**
+     * Method: trigger
+     */
+    trigger: function(){
+        if (this.map) {
+            var getSlideFactor = OpenLayers.Function.bind(function (dim) {
+                return this.slideRatio ?
+                    this.map.getSize()[dim] * this.slideRatio :
+                    this.slideFactor;
+            }, this);
+    
+            switch (this.direction) {
+                case OpenLayers.Control.Pan.NORTH: 
+                    this.map.pan(0, -getSlideFactor("h"));
+                    break;
+                case OpenLayers.Control.Pan.SOUTH: 
+                    this.map.pan(0, getSlideFactor("h"));
+                    break;
+                case OpenLayers.Control.Pan.WEST: 
+                    this.map.pan(-getSlideFactor("w"), 0);
+                    break;
+                case OpenLayers.Control.Pan.EAST: 
+                    this.map.pan(getSlideFactor("w"), 0);
+                    break;
+            }   
+        }
+    },
+
+    CLASS_NAME: "OpenLayers.Control.Pan"
+});
+
+OpenLayers.Control.Pan.NORTH = "North";
+OpenLayers.Control.Pan.SOUTH = "South";
+OpenLayers.Control.Pan.EAST = "East";
+OpenLayers.Control.Pan.WEST = "West";