HTML: Website blank in IE, fine in Firefox

I coded up a website in firefox but it wouldn't show in IE. I was trying to make it xHTML-ish, and had the script tag looking like this:

<script language='JavaScript' type='text/JavaScript' 
 src='script.js'/>

For some idiot reason, IE chokes on the whole page, unless it looks like this:

<script language='JavaScript' type='text/JavaScript' 
 src='script.js'></script>

source:
http://www.webmasterworld.com/html/3249762.htm