 	private function Stage_resizeHandler(event:Event = null):void
 	{	
        	var sandboxScreen:Rectangle = getSandboxScreen();
-		if (!systemManager._screen)
-			systemManager._screen = new Rectangle();
-       	systemManager._screen.width = sandboxScreen.width;
-       	systemManager._screen.height = sandboxScreen.height;
+        if (!Object(systemManager).mx_internal::_screen)
+            Object(systemManager).mx_internal::_screen = new Rectangle();
+       	Object(systemManager).mx_internal::_screen.width = sandboxScreen.width;
+       	Object(systemManager).mx_internal::_screen.height = sandboxScreen.height;
 	}
 
  	/**

     */
    mx_internal function get bridgeToFocusManager():Dictionary
    {
        if (systemManager.topLevel)
            return _bridgeToFocusManager;
        else if (systemManager.topLevelSystemManager)
        {
            var topMP:MarshallPlan = MarshallPlan(SystemManager(systemManager.topLevelSystemManager).
                        getImplementation("mx.managers::IMarshalSystemManager"));
            return topMP.bridgeToFocusManager;
        }

	/**
	 *  @private
	 */
	private var systemManager:ISystemManager;

	/**
	 *  @private
	 */
	private var childManager:ISystemManagerChildManager;


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