Scenario.

User fills out form, clicks submit,
Users is take to page to review data they entered.
User clicks finalize and is taken to thank you page.

Question.

If the user clicks back after getting to thank you. How can I totaly expire the page so that clicking reload or back wont bring the origional page back up. IE/Mozilla/Etc.. give (Page Expired) error when this is done. Many sites do this for security andIT CAN BE DONE!.

Anyone know how?