title: html5 listener loadeddata do not work certain
body: <p>I' am desperated.
  Why this works:</p>
  
  <pre><code>var myVid=document.getElementById("movie");
  myVid.onloadeddata=console.log("Browser has loaded the current frame");
  </code></pre>
  
  <p>and this do not:</p>
  
  <pre><code>myVid.addEventListener("loadeddata", function()  {
    alert("loadeddata");
    });
  </code></pre>
  
  <p>tried both in firefox 27.</p>
  
  <p>her my page where it shout run: 
  <a href="http://www.x.opteynde.com" rel="nofollow">www.x.opteynde.com</a></p>
  
  <p>My target is to get the loading-time of the video.</p>