Javascript:popup not working in IE

[lintz]

I'm not sure what has happened but within IE I can no longer open any links that are created with javascript.

It has worked perfectly until yesterday? It still works in Mozilla but not in IE.

This is my code.

<script = javascript>

var newwindow;
function popup(url)
{
	newwindow=window.open(url,'name','height=500,width=450');
	if (window.focus) {newwindow.focus()}

}

</script>

and called like

 <a href="javascript:popup('popup.php');""><u>Click Here</u></a>

Also, the links ppl post on this forum don't open either?

Any suggestions?