[Хемуль]

2 n01known:

var loadListener:Object = new Object();

loadListener.onLoadError = function(target_mc:MovieClip, errorCode:String, httpStatus:Number) {
    if (errorCode == "URLNotFound")
    {
        trace("Файл не найден!");
    }
}

var mcLoader:MovieClipLoader = new MovieClipLoader();
mcLoader.addListener(loadListener);

var mc:MovieClip = this.createEmptyMovieClip("mc", this.getNextHighestDepth());
mcLoader.loadClip("http://mysite.com/images/img.jpg", mc);