this.createEmptyMovieClip("logo_mc", this.getNextHighestDepth());

logo_mc.createEmptyMovieClip("container_mc",0);

logo_mc.container_mc.loadMovie("preview.swf");

logo_mc.container_mc._height=300;

var target:MovieClip = this.createEmptyMovieClip('target', 0);

var tmp:MovieClip = target.createEmptyMovieClip('tmp', 0);

var mcl:MovieClipLoader = new MovieClipLoader();

mcl.addListener(this);

function onLoadInit(tmp:MovieClip) {

        tmp._height = 300;

}

mcl.loadClip('index.swf',tmp);