Thanks for the response, I appreciate it.
In truth though, I'm not sure if I want to do that. I prefer the idea of the thing behaving like normal session variables. For instance, I like the idea of a person being able to close the screen and have all the variables wiped. With remember me facilities in place it means people gain access without logging in.
All I'm trying to do is extend the length of time that session variables will last when there is no activity at the user end.