[development] Auto logout when users close browser.

[Nam PHAM]

Hello everybody,

I have a problem with drupal 6.

I want users to log out automatically, after users close the Tab of
browser, or close browser.

At the moment, when users close browser and then open browser again, they
still logged in.

I have try by edit 'session.cookie_lifetime' in 'settings.php', but it
doesn't work.

Thanks in advance for any ideas.
-- 
*Nam Pham*
Phone: (+84) 932 830 330
Email: + nampham at mbm.vn
           + allstarsmen at gmail.com
Skype: nampham-mbm
Yahoo: allstars_men
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