Hi all... Can any one tell me if a user is already browsing with his/her name in the authentication then I don't want to allow the same username to brows from other machine 1) till he logs out. 2) only after 'n' minutes of logging out. How can this be achieved ? Regards Imtiyaz ---------------------------------------------------------- Netcore Solutions Pvt. Ltd. Website: http://www.netcore.co.in Spamtraps: http://cleanmail.netcore.co.in/directory.html ----------------------------------------------------------