Progressionの外部子swfからのstage参照

/*++++++++++++++コンストラクタ++++++++++++++*/
public function Test()
{
     if ( this.stage != null )
     {
        init( this.stage );
      }
}
/*+++++++++++++初期化メソッド+++++++++++++++*/
public function init(e:Stage):void
{
     trace("stageの幅は" + stage.stageWidth);
     trace("stageの高さは" + stage.stageHeight);
}

private var _loader = new CastLoader();
 
protected override function _onCastAdded():void
{
	addCommand
	(
	    new LoadChild( this, new URLRequest( "swfファイルのurl" ),
		                                { loader: {
			                                onCastLoadStart:loadStartHandler,
                                                                      onCastLoadComplete:loadCompleteHandler
	                                              }}),
		function ():void
		{
			loadData = this.latestData;
		}
	);
}
 
private function loadCompleteHandler():void
{
	addCommand
	(
	    new AddChild(this, _loader),
		function():void
				{
					loadData.content["init"](stage);
				}
	);
}