<html class="reftest-wait">
<head>
<script type="text/javascript">

var i = 0;

function bouncy()
{
  var body = document.body;
  document.documentElement.removeChild(body);
  document.documentElement.appendChild(body);

  if (++i < 30)
    setTimeout(bouncy, 1);
  else
    document.documentElement.removeAttribute("class");
}

</script>
</head>

<body onload="bouncy();"><span id="a"></span><span style="filter: url(#a);"><span style="filter: url(#a);">B</span></span></body>

</html>