You can just google: meta refresh
The key is that you are dynamically generating the URL that's optionally included in the tag, so you can have the "refresh" send any query string you want (in that URL) back to the server.

Here's a nice overview:
http://webdesign.about.com/cs/metatags/a/aa080300a.htm

>Mark,
>
>This sounds good. Could you provide me an example of a meta refresh? I'm unfamiliar with this.
>
>Thanks