you-tube-jsapi-usage.php

<?php  // start ?>

<div class="ytwrapper"> <!-- wrapper -->
<a href="javascript:void(0)" onMouseOver="play()">
<div id="player"></div><?php  // where video will be housed ?>
</a>
<script>      // 2. This code loads the IFrame Player API code asynchronously.
      var tag = document.createElement('script');
      tag.src = "http://www.youtube.com/player_api";
      var firstScriptTag = document.getElementsByTagName('script')[0];
      firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
      // 3. This function creates an <iframe> (and YouTube player)
      //    after the API code downloads.
      var player;
      function onYouTubePlayerAPIReady() {
        player = new YT.Player('player', {
          playerVars: { 'autoplay': 1, 'controls': 1,'autohide':1,'wmode':'opaque' },
          videoId: 'zgGAvHl1Aks',
height: '495',
      width: '880',
          events: {
            'onReady': onPlayerReady}
        });
      }
      // 4. The API will call this function when the video player is ready.
      function onPlayerReady(event) {
        event.target.mute();
      }
    function play() { // function for onMouseOver :) 
      if (player) {
        player.unMute();
      }
    }
</script>
</div>