Hey there Kemcos. I have begun to address your question. I am trying to develop this thread within a carefully predetermined set of parameters. Namely, I'm trying to outline a general (big picture) approach to how validation works. Your question is excellent but I also think it deserves it's own thread, where we can get into some detail. It's better for you anyway as more people will see your question and will want to weigh in as well. Therefore, may I have your permission to transfer your question to your own thread? Or you can do that yourself by hitting the "Post" button at the top of the first "Straight Talk" panel. As soon as you do I have the beginnings of an answer to post for ya. OH - And welcome to the board!