mod_auth_radius values

Hello all, I am developing a web system that authenticates users to a web site through free radius using the mod_auth_radius module for apache. It all works fine, but I would like to get the username of the user that has authenticated for use on pages once they have authenticated. I am not sure how to go about this. I guess that the values are set in a cookie or in the HTTP Headers by mod_auth_radius? Does anyone know a way I could retrieve the values, either through HTML or PHP? Thanks, Gareth. - - - - - - - - - - - - - - - - Gareth Ayres Wireless Network Officer Library & Information Services University of Wales Swansea, Singleton Park, Wales, UK SA2 8PP e-mail: g.j.ayres@swansea.ac.uk