Control movie clip loaded with MovieClipLoader

programming flash
1 
this.createEmptyMovieClip("tester_mc", 1);
var mclListener:Object = new Object();
mclListener.onLoadStart = function(target_mc:MovieClip) {
	target_mc.startTimer = getTimer();
};
mclListener.onLoadComplete = function(target_mc:MovieClip) {
	target_mc.completeTimer = getTimer();
};
mclListener.onLoadInit = function(target_mc:MovieClip) {
	var timerMS:Number = target_mc.completeTimer-target_mc.startTimer;
	target_mc.createTextField("timer_txt", target_mc.getNextHighestDepth(), 0, target_mc._height, target_mc._width, 22);
	target_mc.timer_txt.text = "loaded in "+timerMS+" ms.";
};
var image_mcl:MovieClipLoader = new MovieClipLoader();
image_mcl.addListener(mclListener);
image_mcl.loadClip("http://kameny.bresco.cz/images/ref/img/img_1.png", tester_mc);

Can I use this to control mc tester_mc?


tester_mc.onRelease = function() {
	this._visible = false;
};

Because this not works.