A feature I am trying to implement in my rails app is the ability for users to control embedded youtube videos. I am using the youtube player api (guidelines here: https://developers.google.com/youtube/iframe_api_reference).
In the guidelines, it is always creating a new YT player:
// 3. This function creates an <iframe> (and YouTube player)
  //    after the API code downloads.
  var player;
  function onYouTubeIframeAPIReady() {
    player = new YT.Player('player', {
      height: '390',
      width: '640',
      videoId: 'M7lc1UVf-VE',
      events: {
        'onReady': onPlayerReady,
        'onStateChange': onPlayerStateChange
      }
    });
  }
My question is how can I play an already embedded youtube video with an outside 'play' button.
The error is on the player = new YT.Player line. I don't want to make a new player, just control the already embedded video.
var player;
function onYouTubePlayerAPIReady() {
    player = new YT.Player('video', {  
      events: {
        'onReady': onPlayerReady
      }
    });
}
function onPlayerReady(event){
  event.target.playVideo();
    document.id("start").click(function () {
      player.playVideo();
    });    
  }
var tag = document.createElement('script');
tag.src = "//www.youtube.com/player_api";
var firstScriptTag = document.getElementsByTagName('script')[0];
firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
my iframe:
<iframe title="YouTube video player" id="video" width="540" height="290"         src="http://www.youtube.com/embed/#{ youtube_id }?rel=0&enablejsapi=1" frameborder="0" allowfullscreen></iframe>
header view with play button:
<div id="start">
  <%= image_tag("playback_play.png")  %>
</div>
(rails app)
if you need more code, let me know, thanks for the help!
 
    