[squid-users] cookies?

I have a semi-dynamic site that has been caching well up to now and I
made a change that allows users to select the stylesheet they want to
use and save the choice as a cookie that then causes the right
stylesheet to be selected for each viewer. How will that effect caching?
Are proxy servers smart enough to cache multiple versions based on
cookies are will this screw my caching up in general?

Right now the change requires the user force a reload of the page or
wait for the old copy to go stale before they will see the page with the
new stylesheet. Is there anyway to get the browser/proxy to forget all a
sites pages from a single page? Some sort of header maybe?

I realize I could use Javascript instead of server-side code to use the
right stylesheet but I try to avoid using client-side scripting. It
still irks me that the browsers won't seem to just remember the
stylesheet a user has selected for a site. If there is no other way then
I'll switch my code to Javascript.

Thanks.

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Michael <mogmios@mlug.missouri.edu>
http://kavlon.org