Fermare musica di sottofondo sito quando parte video YouTube

<script src = "http://www.youtube.com/player_api"></script>
<script type="text/javascript" src="Scripts/jquery.jplayer.min.js"></script>
<script type="text/javascript" src="Scripts/jquery.jplayer.inspector.js"></script>
<script type="text/javascript">
//<![CDATA[
$(document).ready(function(){

	$("#jquery_jplayer_1").jPlayer({
		ready: function () {
			$(this).jPlayer("setMedia", {
				mp3: "http://www.XXXXXX.XXX/music.mp3"
			}).jPlayer("play");
		},
		ended: function (event) {
			$(this).jPlayer("play");
		},
		swfPath: "../Scripts",
		supplied: "mp3"
	});

	$("#jplayer_inspector").jPlayerInspector({jPlayer:$("#jquery_jplayer_1")});
});
//]]>
</script>

<div id="jquery_jplayer_1" style="position:absolute; left:-9999px;"></div>
<div style="float:right; margin-top:-10px" id="jp_interface_1">
 <a href="#" class="jp-play">Play</a>
 <a href="#" class="jp-pause">Pause</a>
</div>

<div id="videoYouTube">
<iframe  id="player" width="419" height="315" style="margin-top:52px"src="http://www.youtube.com/embed/YYYYYY" onload="floaded()" frameborder="0" allowfullscreen></iframe>
</div>

<script>
//onYouTubePlayerAPIReady
var player;
function floaded(){
  player = new YT.Player('player', {
  videoId: '-0W4g6tExM0',
  events:
   { 
      'onStateChange': function (event)
      {
              if (event.data == YT.PlayerState.PLAYING) { 
                   $("#jquery_jplayer_1").jPlayer("pause"); 
              }
      }
    }
   });
}
</script>