<html>
<head>
<script type="text/javascript">

function boom()
{
  s = document.createElement("span");
  a = document.createElement("audio");
  a['src'] = "javascript:4";
  a['loopend'] = 3;
  s.appendChild(a);
}

</script>
</head>

<body onload="boom();"></body>
</html>
