I was looking for an easy way to display a message to users stating that they must have javascript enabled to use a page. I stumbled across this:
http://blog.blazed-designs.com/2009/05/05/jquery-javascript-detection/comment-page-1/#comment-821
However, the above method will show the no javascript warning on slow computers (and probably pervasive devices with slow parsers).
Anyways, I came up with this trick. Not the best looking, but supports all browsers AND has no load lag. They way I see it, if a page is not going to work without JS, having it look good is not a priority.
<noscript>
<h3 style="color: yellow;">ATTENTION: Your browser must have JavaScript enabled to report scores on-line</h3>
<p style="font-weight:bold; margin-bottom: 500px">Please enable javascript or <a href="http://www.getfirefox.com">click here to download Mozilla Firefox.</a></p>
</noscript>