You would need to use session cookies...
Thanks for the prompt response I guess that switching cookies off is a user responsibility so to all intents and purposes I have no control over the user name and password being stored by the user. Cheers Ant..
The user can end a session by emptying the browser cache.
A session cookie is created by you and downloaded with the web page. It logs out of the website when the browser session ends. You would need to create the cookie on the server.
This forum works in a similar fashion. It can become irritating over time and its debatable whether its worth it as you could quite easily alienate visitors.
As to your closing remarks I think William Wallace may have had the same problem with his forum.........
Thanks you for helping me with my life long disipline 67 years so far and that is to learn something new each and every day some would say training for that TV show 'Who Wants to be a Millionaire'. Cheers Ant..