So is it usable as it stamds, that is, can you modify it to do exactly
what you want? Or at least use it as a basis for writng your own?

No, Im not looking for credits on such a small snippet, I just want to know
so I can disengage my brain from this task and move on to other things.

PS Feel free to PM me here if you need further help with this function.

Best of luck...