[jQuery] jQuery on a generic registration form

Hi guys, I recently wrote a simple script for registration forms. It basically includes AJAX checking if a username/email exists, checking if the passwords match, loading and reloading of captcha. I feel like there's a lot to improve in this simple script. It would be great if you can bash my c

[jQuery] jQuery on a generic registration form

Hi guys, I recently wrote a simple script for registration forms. It includes AJAX checking if a username and/or email already exists, checking if passwords match, loading and reloading of captcha. I know the code can still be improved with respect to the use of jQuery and other programming prac