update Control, Marker, and Popup such that they all have draw(px) and move(px) functions. standardization. update tests.

git-svn-id: http://svn.openlayers.org/trunk/openlayers@255 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Control.js

@@ -18,16 +18,29 @@ OpenLayers.Control.prototype = {
     },
 
     /**
+    * @param {OpenLayers.Pixel} px
+    *
     * @returns A reference to the DIV DOMElement containing the control
     * @type DOMElement
     */
-    draw: function () {
+    draw: function (px) {
         if (this.div == null) {
             this.div = OpenLayers.Util.createDiv();
         }
+        this.moveTo(px);        
         return this.div;
     },
 
+    /**
+    * @param {OpenLayers.Pixel} px
+    */
+    moveTo: function (px) {
+        if ((px != null) && (this.div != null)) {
+            this.div.style.left = px.x + "px";
+            this.div.style.top = px.x + "px";
+        }
+    },
+
     /**
     */
     destroy: function () {