JavaScript is the glue that enables HTML to become interactive. Learn how you can leverage JavaScript Libraries to quickly build beautiful Web applications.* Add Ajax libraries to your Web site* Use jQuery in your Web applications* Extend jQuery with a custom plugin* Take advantage of popular jQuery plugins* Workwith Adobe's Spry Framework* Use Yahoo's YUI frameworkThe HTML5 JavaScript Model is the fourth of five articles on the new Web standard, HTML5. These five full-color articles feature ample visuals to illustrate what your Web sites can do with the help of HTML5. The articles are also combined in the book, HTML5, which will add exclusive material in the form of a related real-life project to go alongside each article. This article is equivalent to 39 print pages.