Problems with RELOAD on browsers

Hi... I have a php url on wich in some steps through several forms (on the same url) I do some interaction with DB. I have a session variable with the step I am currently doing. For example session_start(); if (!session_is_registered("MyVar")) { session_register("MyVar"); $MyVar="Second Time"; //Do some stuff //Show a form with the same url in action } elseif ($MyVar="Second Time) { //Do some stuff with the previous form data //Show a form with the same url in action $MyVar="Third Time"; } elseif ($MyVar="Third Time") { //Do some stuff with previous form data session_unregister("MyVar"); //link to the main page } The problem appears when the client-user use reload on the browser. The aplication goes on to the next step without the form data. My question are: Is there any way to go back to the fisrt step when a user makes a reload? Does anybody know another idea to manage this kind of work? Thank in advance pekesan@jazzfree.com