btn.addEventListener(MouseEvent.CLICK, loadImg);
btn2.addEventListener(MouseEvent.CLICK, callBox);
var mc:MovieClip = new MovieClip();
var loader:Loader = new Loader();
function loadImg(e:MouseEvent):void {
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loaded);
loader.load (new URLRequest("img.swf"));
}
function loaded(e:Event):void {
trace("SWF loaded");
mc = loader.content as MovieClip;
stage.addChild(mc);
}
function callBox(e:Event):void {
trace(mc.name);
mc.my_box.gotoAndStop(2);
}