Preloading multiple external images

[sharq1]

I am loading two external images into blank movie clips. How should my preloader look like, to wait for these images to load before starting the animation?

Frame1:

loadMovie("photo.jpg", photo.empty);
loadMovie("photo2.jpg", photo2.empty2);

Frame2:

var amountLoaded:Number = _root.getBytesLoaded()/(_root.getBytesTotal());
preloader._width = amountLoaded * 117;

Frame3:

if(_root.getBytesLoaded() == _root.getBytesTotal()) {
	gotoAndPlay(4);
}else {
	gotoAndPlay(2);
}