How to determine if a user logs or times out ?

[RWX]

In a networked environment, is there any way to determine whether a user logs or times out of the system? I want to prevent users from accidentally logging out FileMaker by closing the last window of the database. I figured I'd write a shutdown script that pops up a little "Are you sure you want to log out?" dialogue if the user closes the last window. However, if the server kicks him/her off after being idle for X minutes, I want the system to skip the warning step. Any thoughts?

Thanks!

-Rob

[Vaughan]

The shutdown script runs when the last window of a file is closed, but it does not let you abort the closing of the file.