Dojo the next Mojo

The Dojo toolkit is a modular open source JavaScript toolkit (or library), designed to ease the rapid development of JavaScript- or Ajax-based applications and web sites.

Features:

Widgets

Dojo widgets are prepackaged components of JavaScript code, HTML markup and CSS style declarations that can be used to enrich websites with various interactive features that work across browsers.

Asynchronous communication

One important feature of Ajax applications is asynchronous communication of the browser with the server: information is exchanged and the page’s presentation is updated without a need for reloading the whole page. Traditionally, this is being done with the JavaScript command XMLHttpRequest. Dojo provides an abstracted wrapper (dojo.io.bind) around various web browsers’ implementations of XMLHttpRequest, which can also use other transports (such as hidden IFrames) and a variety of data formats. Using this approach, it is easy to have the data a user enters into a form sent to the server “behind the scenes”; the server can then reply with some JavaScript code that updates the presentation of the page.JavaScript programming
Client-side data storageIn addition to providing support functions for reading and writing cookies, Dojo also provides a local, client-side storage abstraction named Dojo Storage. Dojo Storage allows web applications to store data on the client-side, persistently and securely and with a user’s permission.

Visit Dojo Home Page for more information.