codice:
var mcload = new MovieClipLoader();
var mclist = new Object();
mclist.onLoadInit = function(target_mc){
	target_mc.onRelease = function(){
		// DoSomething...
	}
}
mcload.addListener(mclist);
for(i=0 ; i<thumbs ; i++){
   _root.attachMovie("empty", "thumbs"+i , ....)
   mcload.loadClip("img.jpg",_root["thumb"+i]);
}