[Bindable]
private var _loader:Loader; 
private var _player:Object;  
 
.....................
 
 public function Youtube()
{ 
    super();
 
    //allow domains
    Security.allowDomain("www.youtube.com");
    Security.allowDomain("video-stats.video.google.com");
 
    //load youtube api
    _loader  = new Loader();
    _loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onLoaderInit);
    _loader.load(new URLRequest("http://www.youtube.com/apiplayer?version=3"));
 
    //add loader to our component
    addChild(_loader);  
} 
 
.....................
 
//set events for our movie
private function onLoaderInit(event:Event):void 
{
      _loader.content.addEventListener("onReady", onPlayerReady);
     .....................
}
 
private function onPlayerReady(event:Event):void 
{
    // Once this event has been dispatched by the player, we can use
    // cueVideoById, loadVideoById, cueVideoByUrl and loadVideoByUrl
    // to load a particular YouTube video.
    _player = _loader.content;
    //load our video ID
    _player.loadVideoById(_videoId);
    ..................... 
}