<html>
<head>
<script>
function crashme() {
var obj = document.getElementById('popupid');
obj.style.visibility='hidden';
}
</script>
</head>
<body onload="crashme();">
<a href="http://www.mozilla.org/">http://www.mozilla.org/</a>
<div id="popupid">
<font>
<script>
document.write('<form>');
document.write('<span>');
document.write('<input>');
document.write('</span>');
document.write('<br>');
document.write('</form>');
</script>
</font>
</div>
</body>
</html>