Stan2004, I didn't want you to think I took all your great advice and then dropped off the planet. About a week after you took the time to lay things out for me, I got T-boned by someone running a red light. Been out of the hospital for about a week - punctured lung and broken hip the worst of it. Needless to say, I won't be getting to put the trolly switching system into play for a few months. But again, MANY THANKS FOR ALL YOUR HELP!!!!