I have a site which requires JS to be switched on. I would like the home page to display different content if JS isn't switched on, as below.

However NS4 gets to the document.write bit and stops.

I have tried it with and without the window. prefix and with and without the open() and close() lines all to no avail, can anyone help?

Code:
<HTML>
<HEAD>
<TITLE>Test Page</TITLE>
</HEAD>
<BODY>
<P>Text At Top Of Page</P>
<SCRIPT LANGUAGE=javascript>
<!--
window.document.open()
window.document.writeln("Javascript is on")
window.document.close()
//-->
</SCRIPT>
<NOSCRIPT LANGUAGE=javascript>
Javascript is off
</NOSCRIPT>
<P>Text At Bottom Of Page</P>
</BODY>
</HTML>