      */
     override public function get screen():Rectangle
     {
+        // This is called to center an Alert over the systemManager
+        // this proxy represents.
         return _systemManager.screen;
     }
 

    {
        return _systemManager.getVisibleApplicationRect(bounds);    
    }
    
    //--------------------------------------------------------------------------
    //

     * 
     *  @param f The top-level window whose FocusManager should be deactivated.
     */
        public function deactivateByProxy(f:IFocusManagerContainer):void
        {
                if (f)
            f.focusManager.deactivate();
        }

    //--------------------------------------------------------------------------
    //
