Session validation problem;

[Ibrahim.]

hello,

The following is the problem scenario in ASP.NET 2.0;

1. user access a web application. A new session is generated.

2. the user opens one of the popup window.

3. he logs out using logout button., but he never closes the popup window.

4. the popup window remains open.

5. the user again access the application.

6. he goes to the popup window, now since he has again logged,
application should reject any request on this page & directly display error
message

Any thoughts are welcome.