title: How to set position correctly in SoundJS for Firefox, IE
body: <p>I'm trying to use <a href="http://www.createjs.com/#!/SoundJS" rel="nofollow">SoundJS</a> to play sn mp3 file and seek to a specific position.  I'm using:</p>
  
  <pre><code>instance.setPosition(10000);
  </code></pre>
  
  <p>which works correctly in Google Chrome.  But in Mozilla Firefox I hear the sound playing from the correct position, and a second instance of the sound also playing from another position.</p>
  
  <p>In Internet Explorer, the sound starts playing again from the beginning.</p>
  
  <p><a href="http://jsfiddle.net/cpickard/qHJth/" rel="nofollow">Here's a jsFiddle</a> (with autoplaying sound) and here is the complete javascript:</p>
  
  <pre><code>createjs.Sound.registerPlugins([createjs.WebAudioPlugin, createjs.HTMLAudioPlugin, createjs.FlashPlugin]);
  createjs.Sound.addEventListener("fileload", handleLoad);
  createjs.Sound.registerSound("http://ivdemo.chaseits.co.uk/enron/20050204-4026(7550490)a.mp3", "sound");
  
  function handleLoad(event) {
      var instance = createjs.Sound.play("sound");
      var ten = document.getElementById('ten-secs');
      ten.addEventListener('click', function (event) {
          instance.setPosition(10000);
      });
  }
  </code></pre>
  
  <p>What am I doing wrong for Firefox and IE?</p>