Tracking user exits and returns

[Shao Sean]

> good. They don't seem to be sent when the user switches to and from 
> another program. Any suggestions?

check out "suspendStack" and "resumeStack"

<stack script>
on suspendStack
  put "i'll be back"
end suspendStack

on resumeStack
  put "back in action"
end resumseStack
<end stack script>