<!DOCTYPE html>
<html>
<head>
<script>

function boom()
{
  var a = document.createElementNS("http://www.w3.org/1999/xhtml", "fieldset");
  var b = document.createElementNS("http://www.w3.org/1999/xhtml", "legend");
  var c = document.createElementNS("http://www.w3.org/1999/xhtml", "input");

  a.appendChild(b);
  a.appendChild(c);
  a.removeChild(b);
  c.expandoQ = a;
}

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