Hi! Well I have a form page. WHen people submit the information, they and they go to the other page where form action is specified, they should not be able to come back to the form page. They should get a message saying the Page expired. The concept is used on http://www.mtnsms.com Please tell me how is this possible. Thank You Dhaval Desai __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]