This function will validate all USA credit cards numbers, all it really does is verify the numbers, not the actual format.

The problem with 'reporting' pedophiles is that you've got to give proof, and that's obviously not an easy thing to do..

I didn't realize pedophilia was so rampid.

I didn't think about that, and thanks for catching that mistake!

This is a function that truncates input in a rather different way if I'm correct. (I've never seen it done this way)

Can you give an example of a SQL table and the built tree?