On 6/14/07, John Robinson wrote:
....
> Actually in this case, I do need to kill the session. I'm building a
> chat app. When a user leaves, I need to let the other users still
> active in the chat know that this user has left. Essentially I'm

You can always do something like if they click the logout button,
it logs them out, and if they're inactive for 5 minutes, it says
something like "away", and then after 10 (or whatever) you just
log them out and mark them as logged out (or not, of course-
away seems to work pretty good on it's own).

Gives the other users useful information and takes care of the
problem of the open looped system.

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