The URL very well might have been http://hoohoo.ncsa.uiuc.edu/cgi/env.html,
which is a listing of most (but not all) CGI environment variables.
The variable HTTP_USER_AGENT is the one you're after.
--Liza
-- There was nothing left to do but lift the lid of the piano and lay the dead Chihuahua inside on the wires ldaly@bu.edu http://metro.turnpike.net/G/gecko