Update OpenLayers.Icon.px type

'px' can be either a Pixel or a simple javascript object.

lib/OpenLayers/Icon.js

@@ -56,7 +56,8 @@ OpenLayers.Icon = OpenLayers.Class({
 
     /** 
      * Property: px 
-     * {<OpenLayers.Pixel>} 
+     * {<OpenLayers.Pixel>|Object} An OpenLayers.Pixel or an object
+     * with a 'x' and 'y' properties.
      */
     px: null,
     
@@ -142,7 +143,8 @@ OpenLayers.Icon = OpenLayers.Class({
      * Move the div to the given pixel.
      * 
      * Parameters:
-     * px - {<OpenLayers.Pixel>} 
+     * px - {<OpenLayers.Pixel>|Object} An OpenLayers.Pixel or an
+     *                                  object with a 'x' and 'y' properties.
      * 
      * Returns:
      * {DOMElement} A new DOM Image of this icon set at the location passed-in
@@ -161,7 +163,6 @@ OpenLayers.Icon = OpenLayers.Class({
     /** 
      * Method: erase
      * Erase the underlying image element.
-     *
      */
     erase: function() {
         if (this.imageDiv != null && this.imageDiv.parentNode != null) {
@@ -187,7 +188,8 @@ OpenLayers.Icon = OpenLayers.Class({
      * move icon to passed in px.
      *
      * Parameters:
-     * px - {<OpenLayers.Pixel>} 
+     * px - {<OpenLayers.Pixel>|Object} the pixel position to move to.
+     * An OpenLayers.Pixel or an object with a 'x' and 'y' properties.
      */
     moveTo: function (px) {
         //if no px passed in, use stored location
@@ -202,8 +204,10 @@ OpenLayers.Icon = OpenLayers.Class({
                 if (this.calculateOffset) {
                     this.offset = this.calculateOffset(this.size);  
                 }
-                var offsetPx = this.px.offset(this.offset);
+                OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv, null, {
-                OpenLayers.Util.modifyAlphaImageDiv(this.imageDiv, null, offsetPx);
+                    x: this.px.x + this.offset.x,
+                    y: this.px.y + this.offset.y
+                });
             }
         }
     },