We are tracking an extra username for each new member, of the member who referred them. They see "Referred By" and are required to enter a valid username for an existing member. Problem is, we are requiring the field but aren't able to do a lookup to validate the referrer's username just like we check the signee's Username to ensure it's available. How can we do a quick validation of any username from the sign-up page and stop them if it doesn't exist in the db? Thanks!
resolved We paid David and Anton to resolve this issue. They embedded new code in signup.php and signup.html (among other magic) to disable the "Continue" button in the sign-up page if the "Referred By" username didn't exist as an active member in the database. It works flawlessly - Thanks guys! Dan