Bookmarking problem

[Anon]

I have built a web site that I requires people to either login or signup. However, once they get past all of that stuff, I don't want them to be able to bookmark any of the "internal" pages.
What I would like it to do is redirect them to the login/sign up page OR provide them with a link back to the login/sign up page.

How do I got about doing this? I've used sessions throughout the site. Am I correct in this thought:

If I pass my session through the browser through the entire site and they bookmark it. When they try again at some other time, the session should expire (if I set to expire at some time). If I do this, will they not get a page doesn't exist because it's looking for my domain name + session?

[knickerlas]

Hi
I recently faced a similar situation.
What I ended up doing was setting a session var (you coud use a login) and then at the top of each page I checked to make sure that var was present and if not redirected them to the correct page.
In your case the session var will only be present if they have logged in or signed up!

if (!$login) {
header("location:http://www.explodingnet.com/");
exit;
}

Good luck

Nick