how to : allow access to a page from another one

Hello, I'd like to prevent the access to a page until a special user unlock it. That is to say, when the super user says the page is available, everybody can access it. When the super user says it is locked, no one can open it. In fact I want to have a permanent value for a boolean variable. Does anybody has an idea ? Minh _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com.