Ajax Check User Name

The following does a gmail style check on the username supplied to see if it is unqiue.

YAV: jQuery plugin for client side validation

XHTML standard, accesible and usable, library for form validations using jQuery.

jQuery - numeric plugin

Allows only valid characters (i.e. numbers) to be typed into a text box.

jQuery -focus fields plugin

Add an outline and background to text inputs when they are given focus.

Select box plugin - jQuery

Add a single option, change the text of an existing option or add multiple options.

jQuery Plugin - autoSave

autoSave is the result of user complaints about losing data due to session timeouts.

Milescript

Quickly produce robust, reusable client-side code for any browser.

Protoscript - prototype scripting

A simplified scripting language for creating Ajax style prototypes for the Web.

Visual WebGui - RIA Framework

An open source rapid application development framework for GUI web apps.

Helma - Open source framework

An open source web application framework for fast and efficient scripting of your apps.