Dan, thanks for that, I doubt I'd ever have found it.   Looks like you could do a query before the

if (to_imp == gs.getImpersonatingUserName())


   session.onlineUnimpersonate();


else if (to_imp != gs.getUser().getID())


   doImpersonate(to_imp);

And then just add an && condition to the else if...

Great stuff!   Thank you.