title: change source to <audio> html5 element
body: <p>I'm building a jquery/html5 audio player and I have some problems on changing the source to the audio tag. The method I've implemented works on all browsers except IE9.</p>
  
  <p>Here is a sample of code:</p>
  
  <pre><code>audio = $("&lt;audio&gt;").attr("id", "audioElement")
                          .attr("preload", "auto")
                          .appendTo(player);
  
  function addMp3Source(sourceUrl) {
      audio.empty();
      var newSrc = $("&lt;source&gt;").attr("src", config.tracksURL + sourceUrl).appendTo(audio);
  }
  </code></pre>
  
  <p>On IE9, the source is changing, but when I'm playing the track, it's the old sound that plays. On other browsers works fine.</p>
  
  <p>Any ideeas?</p>