$config['sess_use_database'] & $config['sess_expire_on_close']

[eluser]fMertins[/eluser]
Hi there,

I'm using this both parameters at my config.php file:

$config['sess_expire_on_close'] = TRUE;
$config['sess_use_database'] = TRUE;

And wondering how make work the session expire where browser is closed... Is there any way?

In other words: I need the session expires when user closes the browser.

Thank you!