I presume that the session is not updating because PHP does not
automatically overwrite session variables.
You should use something like this:
$category = $HTTP_GET_VARS["category"];
session_register("category");
Session register can be called more than once, and has no effect on
current session variables with the same name.
See if that works, and if it doesn't have a look at this...
http://www.php.net/manual/en/language.variables.predefined.php
Adam
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