<html xmlns="http://www.w3.org/1999/xhtml" xmlns:math="http://www.w3.org/1998/Math/MathML">
<head>
<bindings xmlns="http://www.mozilla.org/xbl">
<binding id="empty">
<content></content>
</binding>
</bindings>
<script>
function boom()
{
document.getElementById("frame").style.MozBinding = "url('#empty')";
}
window.addEventListener("load", boom, false);
</script>
</head>
<math:mtd><frameset><frame id="frame"></frame></frameset></math:mtd>
</html>