There and Back Again

Dojo is a class library for JavaScript and DHTML. At the core of Dojo is a package system that can include as little or as much of this class library as your application needs. Dojo "plays nice" with other tools (does not pollute gloabal objects or namespace) and is lightweight to develop with and even faster when you deploy it. Dojo provides a capable widget system that makes building and using widgets in markup drop-dead easy. Overviews of many parts of the system are available on the Dojo wiki at http://dojo.jot.com.

This is the stand-alone version of the Ruby-on-Rails javascript library. Provides Basic Cross browser AJAX support, but there is no documentation so using it outside of rails will take a bit of work. Looks like it has an api for easy content replacement. Most exciting features are easy to use effects like fade, appear, blindup, they are documented on their own site.

Rico is a object oriented Javascript library that provides most of what you need to create AJAX applications. It supports ajax using either either content replace or callback objects. The drag and drop, effects, and behaviors so easy to use and look great in the demo. Rico is being developed by Sabre Airline Solutions and extends the Prototype js library using its effect and base classes.

Provides a cross browsers (IE and Mozilla) api for sending requests over XMLHttpRequest using either GET or POST. Supports synchronous and asynchronous operation. Provides some basic utility functions for working with the resulting xml. Also provides caching support and a pool for XMLHttpRequest objects.

Cross-browser wrapper for native XML APIs. It offers various XML related goodies like Document instantiation, XML loading from URLs or strings, XSLT transformations, XPath queries. Provides an XMLHttpRequest wrapper thats supports synchronous and asynchronous operation.