add support for anchor-based permalink, p=sbrunner, r=me (closes #2785)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@11170 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Control/ArgParser.js

@@ -64,6 +64,22 @@ OpenLayers.Control.ArgParser = OpenLayers.Class(OpenLayers.Control, {
         OpenLayers.Control.prototype.initialize.apply(this, arguments);
     },
 
+    getParameters: function(url) {
+        url = url || window.location.href;
+        var parameters = OpenLayers.Util.getParameters(url);
+
+        // If we have an chchor in the url use it to split the url
+        var index = url.indexOf('#');
+        if (index > 0) {
+            // create an url to parce on the getParameters
+            url = '?' + url.substring(index + 1, url.length);
+
+            OpenLayers.Util.extend(parameters,
+                    OpenLayers.Util.getParameters(url));
+        }
+        return parameters;
+    },
+    
     /**
      * Method: setMap
      * Set the map property for the control. 
@@ -92,7 +108,7 @@ OpenLayers.Control.ArgParser = OpenLayers.Class(OpenLayers.Control, {
         }
         if (i == this.map.controls.length) {
 
-            var args = OpenLayers.Util.getParameters();
+            var args = this.getParameters();
             // Be careful to set layer first, to not trigger unnecessary layer loads
             if (args.layers) {
                 this.layers = args.layers;