Autoclose sessions and update sessions

[eluser]andreiu81[/eluser]
Hello


I want to develop a website with CI framework. I see that CI has a different wat to work with _SESSION.

My problem is how I keep a user logged in during website browsing and when i close the browser to make a user log out(like session destroy).

Now when i close the browser and open again i see that user is still logged in.


Also is there any way to update the "session" during website browsing not to let the session expire.


Thank you