Script when connection is ended?

[Matthew Kitchin (public/usenet)]

  Is there any way to call a script when a connection is ended from 
reaching your timeout set on the VPN server?
I can certainly do a cron job to check and see if if the connection is 
up. I just thought it would be cool if there was anyway to launch 
something automatically when you were disconnected for reaching you 
session time limit.

Thanks,
Matthew