jQuery

jQuery is a fast and concise JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development. jQuery is designed to change the way that you write JavaScript.

Installing jQuery is as easy as placing it within your web application and using the HTML <script> tag to include it in your pages, like this:

<script type="text/javascript" src="scripts/jquery-1.4.js"></script>