582601.html
<html>
<head>
<title>Crashtest</title>
<script>
var attr = document.createAttribute("foo");
attr.lookupPrefix("");
</script>
</head>
<body>
</body>
</html>
<html>
<head>
<title>Crashtest</title>
<script>
var attr = document.createAttribute("foo");
attr.lookupPrefix("");
</script>
</head>
<body>
</body>
</html>