timeout (session?)

My web application starts from a login page that enables authorized people to use the system.

I tryed to define a timeout session after which no more browsing will we alowed (a new login process will be required).

But it seems like I have to check the session timeout state in each page I load (and I got too much of them).

Isn't there a way to redirect to the login page after the time is up. Or at least disable the browsing?

You can set the session timeout in the Web.Config file. After the timeout expires, they should see a "Page is no longer Available" (or something similar) message.