old_contents: /*
  * Youtube player embedded on homepage
  * videoId: is the Youtube link to the video
  */
  
  var tag = document.createElement('script');
  tag.src = "http://www.youtube.com/player_api";
  var firstScriptTag = document.getElementsByTagName('script')[0];
  firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
  
  var player;
  function onYouTubePlayerAPIReady() {
    player = new YT.Player('player', {
      height: '290',
      width: '610',
      videoId: 'xquMr3zYGTw',
      playerVars: {
        'autoplay': 0,
        'hd': 1,
        'showinfo': 0,
        'rel': 0,
        'modesbranding': 1,
        'autohide': 1,
        'cc_load_policy': 1,
      },
      events: {
        'onReady': onPlayerReady,
      }
    });
  }
  
  function onPlayerReady(event) {
    event.target.player.pauseVideo();
  }
  
  var done = false;
  
new_contents: /*
  * Youtube player embedded on homepage
  * videoId: is the Youtube link to the video
  */
  
  var tag = document.createElement('script');
  tag.src = "http://www.youtube.com/player_api";
  var firstScriptTag = document.getElementsByTagName('script')[0];
  firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
  
  var player;
  function onYouTubePlayerAPIReady() {
    player = new YT.Player('player', {
      height: '290',
      width: '610',
      videoId: 'WclFjp4-R7M',
      playerVars: {
        'autoplay': 0,
        'hd': 1,
        'showinfo': 0,
        'rel': 0,
        'modesbranding': 1,
        'autohide': 1,
        'cc_load_policy': 1,
      },
      events: {
        'onReady': onPlayerReady,
      }
    });
  }
  
  function onPlayerReady(event) {
    event.target.player.pauseVideo();
  }
  
  var done = false;
  
subject: Update video link