Learn jQuery and be master of the web!
jQuery is a fast and concise JavaScript library created by John Resig in 2006 with a nice motto: WRITE LESS DO MORE.
jQuery simplifies HTML document traversing, event handling, animating, and Ajax interactions for Rapid Web Development.
This tutorial gives a a very good understanding on basics of jQuery version 1.3.2.
App includes following points:
Overview
Basics
Selectors
Attributes
Traversing
CSS
DOM
Events
AJAX
Effects
All the best!