Pat and Mark,
Thanks for your input.

Pat...I have already read that wonderful soon-to-be sticky and even printed it out for reference. I think it's indispensible and wonderful of you to have gone through all the trouble to reconstruct it for all of us. I don't claim to know everything there, obviously, but I have referred to it more than once and will probably continue to do so.

Mark...interesting results!! I guess I'll have to mull this one over. Thanks for the "counterpoint."

Sandy