ci_session

[eluser]St0neyx[/eluser]
Hi,

I build an login system/script that sets the session..
Now i checked some stuff and found out that if you close your browser and restart the session still exists.
I know the session is not an session in the normal php session way.

Where is this session stored? and how do I kill/destroy the session on browser close?
Would be nice when you forgot to logout the system does it for you.

edit:

I know i can set an expiration for the session in the config, but still i want to kill the session when the browser is closed.