I am looking for a way to test if the user has disabled javascript on their browser. I am building a JS/CSS menu which I would like to provide an backup for should they have JS turned off.
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Just use <noscript>.....</noscript> to have the content you want if javascript is turned off. There's some validation issues with <noscript>, it can't be in a containing block level div, p or a few others.

Or you can have the default behavior overridden by javascript, that's I think the best choice, for example have a CSS library file for the active JS triggered component triggered by something like this:


It's hard to say more without seeing a code sample of what you're doing.

Oh, and welcome to the forums.
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A script can be detected by using <noscript></noscript> tag
If a message placed in noscript tag displayed this mean javascript is no enabled
code

<script type="text/javascript">
<!--
document.write("Hello World!")
//-->
</script>
<noscript>Your browser does not support JavaScript!</noscript>
if enabled
print helloworld
else
Your browser does not support JavaScript![/code]
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