JAVASCRIPT HELP, JAVASCRIPT TUTORIALS, JAVASCRIPT PROGRAMMING

In this three-part series of articles I will use a hands-on approach to explain how to construct different kinds of resizable divs with the Ext JS library. If you're thinking of implementing resizable containers on your web site, you should find this series particularly helpful; more than likely it will save you a great deal of time and aggravation.

If you're looking for a quick way to delight your visitors with the addition of Ajax to your site, look no further. This article, the fourth of a four-part series, will show you how to do color fades, timers, and more. It is excerpted from chapter four of Adding Ajax, written by Shelley Powers (O'Reilly, 2007; ISBN: 0596529368). Copyright © 2007 O'Reilly Media, Inc. All rights reserved. Used with permission from the publisher. Available from booksellers or direct from O'Reilly Media.

In this third part to a four-part series on adding Ajax to your web site, you'll learn about tooltips and in-page previews. It is excerpted from chapter four of Adding Ajax, written by Shelley Powers (O'Reilly, 2007; ISBN: 0596529368). Copyright © 2007 O'Reilly Media, Inc. All rights reserved. Used with permission from the publisher. Available from booksellers or direct from O'Reilly Media.

In the second part of a four-part series focusing on interactive effects in Ajax, you'll learn how to create "just-in-time information" that gives your visitors the information they need, but only when they need it. This article is excerpted from chapter four of Adding Ajax, written by Shelley Powers (O'Reilly, 2007; ISBN: 0596529368). Copyright © 2007 O'Reilly Media, Inc. All rights reserved. Used with permission from the publisher. Available from booksellers or direct from O'Reilly Media.

If you're looking for a quick way to delight your visitors with the addition of Ajax to your site, look no further. This article, the first part of a four-part series, will show you how to do some very nice interactive effects. It is excerpted from chapter four of Adding Ajax, written by Shelley Powers (O'Reilly, 2007; ISBN: 0596529368). Copyright © 2007 O'Reilly Media, Inc. All rights reserved. Used with permission from the publisher. Available from booksellers or direct from O'Reilly Media.

In this article, find out how to store and retrieve persistent data with cookies, small files that allow you to do big things. This article explains the basics of cookies, demonstrates reading and writing them in JavaScript, and illustrates their use in a real-world application.

Need to match and replace patterns on a Web page? You don't need Perl or PHP - JavaScript can do the job just as well. In this article, find out how, with an introduction to the JavaScript RegExp object and its methods. After reading this tutorial, I'm pretty sure you're going to look at JavaScript in a different light. The language ins't the one most commonly associated with image swaps and browser detection, but it serves as a powerful tool to help you execute pattern-matching tasks in the client quickly and efficiently.

Maybe you know how to make Web pages dance to your tune with JavaScript - but how about making the browser do the same? This tutorial focuses on the important browser objects (including the Window, Location and History objects) that are controllable via JavaScript, showing you how to manipulate and use them in your scripts.

JavaScript's Window object comes with four methods that you can use to create timed or looping events in your Web pages. In this article, I'll introduce you to them, and also show you a few examples of how they can be used in different situations.

Form validation can help to reduce the amount of bad data that gets saved to your database. In this article, find out how you can write a simple JavaScript form validator for basic client-side validation, and learn a little bit about JavaScript OOP in the process as well.

Wondering why JavaScript doesn't include exception-handling constructs like its bigger cousins? Well, the newest version of JavaScript does - and this article tells you all about it, explaining how you can use the new Error object and the "try-catch" constructs to trap and resolve errors in script execution.

Think JavaScript's only good for image swaps and tickertapes?Think again - the language comes with a powerful String() objectdesigned to help you quickly and efficiently perform string manipulationtasks in the client. This article explains how, with illustrations andcode samples.

In this concluding article on the JavaScript event model, findout how the Event object can be used to do ever more complex things,including manipulating the dimensions of a Web page and tracking andintercepting keyboard and mouse events.

This may be news to you, but JavaScript comes with a powerfuland flexible event model, one which provides developers with astandardized way of trapping and handling client-side events likekeystrokes and mouse clicks. This two-part article takes an in-depthlook at how this event model works, demonstrating some practical (andnot-so-practical) uses of the most common event handlers.

Think JavaScript is only good for image swaps and flying <div>s?Think again - this article takes an in-depth look at some of theobject-oriented constructs available in JavaScript, and demonstrates howJavaScript objects can substantially speed up code development anddeployment.