how to drop idle users

Hi there, I have this problem, i would like to have idle users disconnected. With "idle" i mean users that have no activity with internet browsers. I'm not sure if there are other apllications using the 80 port the users are still idle. Thank you in advance. ____________________________________________________________________________________ Never miss an email again! Yahoo! Toolbar alerts you the instant new Mail arrives. http://tools.search.yahoo.com/toolbar/features/mail/