database - jQuery validation: check for existing username in DB -

I want to put together the functionality of these two links: (demo :)

In the JQuery survival plug-in (from the above site) Adding an Email Execution Check I am thinking of receiving it with an alternative solution: Hides a verification message, while at least gives another error, however, This solution is only temporary (and I have to admit that most of the programs The embarrassment surrounding Amrs), and I believe it can actually be a pie. It took me to try to include the functionality of those sites, but unfortunately without any success.