> A way may be using cookies, otherwise one can implement a kind o session mechanism
> (using cookies or QS to pass sessid and storing user data on the server for a limited
> time...)
> the session method may be useful, but more difficult to implemnet, of course

The concept of a session ID is not present in elog, so implementing it would be harder
than writing elog from scratch. Keeping the thousand 'expansion' flags in cookies is bad
as well, because your browser will send them all each time you request a page, which can
then slow down things considerably over slow lines.