Elastic – Make your textareas grow Facebook style jQuery plugin
Form Validator with several features such as grouping required fields or conditional checking if it is valid or not. Also you can validate string, numeric, date or e-mail. And you can combine several validations. For example: required numeric input and minimum 5 chars long.
Make image buttons a part of input fields
jQuery checkbox v.1.3.0 Beta 1
Radiobutton and Checkbox-Replacement
New jQuery plugin targeting usability for password masking on forms
ToggleVal 3.0
ToggleVal gives you the option to populate the default text of form fields (in a few different ways), and will then toggle the default value when the field receives and loses keyboard focus.
Submit A Form Without Page Refresh using jQuery
Selecting Multiple Select Form Elements on the Fly
Creating a Digg Style Sign Up Form
Password Strength Indicator and Generator
jQuery Form Field Validation Plugin
Advanced Form Styling & Functionality
