<!-- This is a test html file for Youtube video tests. -->
<html>
  <body>
    <iframe id="yt_frame" type="text/html" width="640" height="390"
        src="http://www.youtube.com/embed/MNsabRmyH-Y?enablejsapi=1"
        frameborder="0"></iframe>
    <br>
    <script>
      var tag = document.createElement('script');
      tag.src = "http://www.youtube.com/iframe_api";
      var firstScriptTag = document.getElementsByTagName('script')[0];
      firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
      var player;
      function onYouTubeIframeAPIReady() {
        new YT.Player('yt_frame', {
          events: {
            'onReady': onPlayerReady,
          }
        });
      }
      function onPlayerReady(event) {
        player = event.target;
      }
    </script>
  </body>
</html>