I have a member sign up form on a page that when a user submits, goes to a process page with an insert.
How can I set it up to first check to see if that user name has already been taken before it goes to the process page???
I am assuming that i would do some kind of "On Submit " function or something but I need to know the easiest way to do this. basicallly avoiding duplicates being stored. I think about 99 percent of all member type sites have this function, i just dont know how to do it in this situation.