What's wrong?

Hello, i’m driving crazy here…


myLoadvars.load("http://localhost:8080/Tests/music.php");
myLoadvars.onLoad = function(succes) {
	if (succes) {
                          _root.createEmptyMovieClip("container", 400);
		_global.songtotal = parseInt(this.musictotal);
		for (i=0; i<_global.songtotal; i++) {
			_root["myCover"+i] = this["Cover"+i];
			_root.container.duplicateMovieClip(["container"+i], 500+i);
			loadMovie(_root["myCover"+i], _root["container"+i]);
			_root.onEnterFrame = function(){
				trace(_root["container"+i].getBytesLoaded())// traces undefined
}}}

I just can’t get the bytes loaded of my MCs…