Learn how to use Ajax (Asynchronous JavaScript and XML) to create Web applications that mirror the richness of desktop applications. Using easy-to-follow examples, *Ajax: A Beginner's Guide* gets you started working with this cutting-edge collection of technologies in no time. Create XMLHttpRequest objects and use JavaScript, XML, DHTML, CSS, PHP, and more to build next-generation Web applications. You'll also find out about a variety of free, pre-written Ajax frameworks you can use right away. Designed for Easy Learning: Key Skills & Concepts - Lists of specific skills covered in the chapter; Ask the Expert - Q&A sections filled with bonus information and helpful tips; Try This - Hands-on exercises that show how to apply your skills; Annotated Syntax - Example code with commentary that describes the programming techniques being illustrated.