<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script>
<![CDATA[

function boom()
{
  document.body.innerHTML = '<circle xmlns="http://www.w3.org/2000/svg" onload=""/>';
}

]]>
</script>
</head>

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

</html>