remove fixed layers from the viewport, not the layercontainer

git-svn-id: http://svn.openlayers.org/trunk/openlayers@916 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Map.js

@@ -303,7 +303,11 @@ OpenLayers.Map.prototype = {
      * @param {OpenLayers.Layer} layer
      */
     removeLayer: function(layer) {
+        if (layer.isFixed) {
+            this.viewPortDiv.removeChild(layer.div);
+        } else {
             this.layerContainerDiv.removeChild(layer.div);
+        }
         this.layers.remove(layer);
         layer.map = null;
         this.events.triggerEvent("removelayer");