[PHP] session and back button

Hi! I'm using sessions and if the user hits the back button an expiration page appears! how can i disable the back button ? i tried window.history.forward(1) but it fails ! Thanks _ Get Your Private, Free E-mail from MSN

RE: [PHP] session and back button

I'm using sessions and if the user hits the back button an expiration page appears! how can i disable the back button ? i tried window.history.forward(1) but it fails ! Even more interesting is that when a user presses the back button all the way back to the page that initially started the