Perfect, jamie. Code to study and learn from. Have it in my app now. I'll look at yours too, Roland57. I can't hardly wait to see what winni does with Sets. You guys/gals have a nice Forum here. Very, very nice place.
Thanks for all your help.
**UPDATE - @jamie - the first button click produces same results each time. It's not really random. But thank you for your effort. I have a lot to build on, thanks to all of you.