function initVideo():void
        {
            nc = new NetConnection();
            nc.connect(null);

            ns = new NetStream(nc);
            ns.client = this;
            ns.addEventListener(NetStatusEvent.NET_STATUS, netStatusHandler);

            if(stageVideoAvail)
            {
                sv = stage.stageVideos[0]
                sv.addEventListener(StageVideoEvent.RENDER_STATE, onRender);
                sv.attachNetStream(ns);
                trace('available');
            }
            else
            {
                var vid:Video = new Video(1024, 768);
                addChild(vid);
                vid.attachNetStream(ns);
                trace('not');
            }

            ns.play("01.mp4");
        }

        private function onRender(e:StageVideoEvent):void
        {
            sv.viewPort = new Rectangle(_screenResolution[0] * 0.25, _screenResolution[1] * 0.7, 320, 200);
        }


        private function netStatusHandler(event:NetStatusEvent):void
        {
            switch (event.info.code)
            {
                case "NetConnection.Connect.Success":
                    break;
                case "NetStream.Play.StreamNotFound":
                    trace("Stream not found: ");
                    break;
                case "NetStream.Play.Stop":
                    trace("the video has ended");
                    break;
            }
        }

        public function onMetaData(info:Object):void
        {
            trace("metadata: duration=" + info.duration + " width=" + info.width + " height=" + info.height + " framerate=" + info.framerate);
        }