Javascript Expert Required

Looking for the following added to current functionality of my site. The site already functions in HTML & PHP Must be used with the following Drop Down: URL to Modal Drop Down will be included in PM Requirements: Item #1: Forgot Password - Modal Drop Down Confirmation - In Modal Box (Password sent to the email you entered) Error - In Modal Box (Email not found in our system click here to register) Error - In Modal Box (Please enter a valid email address) Item #2: Enter Game Page - Needs Game Name Ajax Checker Item #3: Sign Up Page - Needs User Name Ajax Name Checker Please submit price for the above 3 items all PHP coding is valid and works just needs recoded to include Javascript. Please enter "Ajaxy" in PM or Comments to ensure you have read all of the job requirements. URL will be provided upon request.