grazie mille

ma ricevo cmq un errore
questo:
ReferenceError: Error #1069: Impossibile trovare la proprietà yMax su flash.geom.Rectangle e nessun valore predefinito presente.

codice:
	private function loadInit(t) {
		try {
			t= Bitmap(MyMc.content);
			t.smoothing = true; 
			if ((stage.stageWidth / stage.stageHeight) > t.width/t.height) {
				t.height = stage.stageWidth / (t.width/t.height);
				t.width=stage.stageWidth;
			} else {
				t.width = stage.stageHeight / (t.height/t.width);
				t.height=stage.stageHeight;
			}
			if (t.getBounds(t.parent).yMax<stage.stageHeight) {
				t._y-=t.getBounds(t.parent).yMax-stage.stageHeight;
			}
			if (t.getBounds(t.parent).xMax<stage.stageWidth) {
				t.x-=t.getBounds(t.parent).xMax-stage.stageWidth;
			}
		} catch (err) {
			trace(err);
		}
	}