title: asp.net login Page
body: <p>I have an asp.net webpage.  I want the other pages to expire when the user clicks the logout button.  Im not using the login control, im just using a textbox for the login page.  When the user enters username and password, i check to see if that matches with the one in the database.  How do i make it so when the user logs out, they cant click the back button, or just cant type the specific URL without goin through the login page first</p>