Display a Message When a Browser is Unsupported

Question

I want to warn users of Internet Explorer 6 using my site, that IE6 has had serious compatibility issues with my site in the past. What is the best way to do this?

Ideally, I want to have a message appear (not a new window, but a message box, if possible) that warns IE6 users of the issues and reccommends they update to either IE7, Firefox 3 or Opera 9.5.

Answer 1

The best way to target IE is through the use of conditional comments. You can then add some specific HTML that will only display in Internet Explorer.

<!--[if IE 6]>
<h1>Please upgrade your browser!</h1>
<![endif]-->

More on the subject:

http://www.quirksmode.org/css/condcom.html