Session and timeout

I have a session time of 20 min. How do I make an information to the user when the session is exceeded and telling him to login once more?
The way I have done it now only transfers the user to login side, not telling him that the session is exceeded.
This is done applying this code in the web.config:

Code:

---

<authentication mode="Forms">
                <forms name=".hpl" loginUrl="login.aspx" protection="All" timeout="20" />
        </authentication>

---

You could create 2 login pages.

The first is the one the users log into initially and the second one containing the message is the one they get redirected to after a session time out.

Probably not the best way to do it but it would be easy to implement and would work.

Hmmm, when using the authentication tag the loginurl will always be shown if you haven't made a succesful login, so I think it's impossibe to have to login pages. :rolleyes: