Adding Web Map Context document parsing for versions 1.0.0 and 1.1.0. This also adds a cross browser setAttributeNS to the XML format. Thanks bartvde for supporting this work. r=crschmidt (closes #100)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@5919 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Format/XML.js

@@ -348,6 +348,37 @@ OpenLayers.Format.XML = OpenLayers.Class(OpenLayers.Format, {
         }
         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";
+            }
+        }
+    },
 
     CLASS_NAME: "OpenLayers.Format.XML"