Ajax For Dummies® by Steve Holzner

By Steve Holzner

Ajax is brief for “Asynchronous JavaScript+CSS+DOM+XMLHttpRequest.”

Even when you weren’t intimidated ahead of, that tidbit is maybe adequate to make you succeed in for the Excedrin. simply succeed in for Ajax For Dummies as a substitute. With monitor pictures, real code and reasons, and dwell sites the place you will discover Ajax purposes doing their factor, it is going to have you ever utilizing Ajax to create net functions that glance an act like machine purposes very quickly. With Ajax, you could accelerate and freshen up your net functions. consumers at your on-line shop can fill their carts with no expecting a number of web page refreshes. Searchers in your websites can get rapid effects at the similar page.

This advisor takes you on a travel of ways Ajax is used this day, entire with examples of Ajax functions in motion, akin to an Ajax-enabled Yahoo! seek or an Ajax-based chat software. Then it provides fundamentals on utilizing JavaScript. After that you simply dive in and get information on:

  • Writing a few Ajax, interactive mouseovers utilizing Ajax, passing information to the server with GET or submit, and more
  • Connecting to Google for a stay search
  • Using loose Ajax frameworks so that you don’t need to begin from scratch, together with Ajax Gold (written in particular for this book), AJAXLib, and grabbing XML with libXmlRequest
  • All sorts of Ajax strategies, similar to utilizing Ajax for drag-and-drop operations, pop-up menus, downloading pictures backstage, and more
  • Using SACK (simple AJAX code kit), interpreting XML with Sarissa, and growing visible results with Rico
  • Handling XML int Ajax Applications
  • Working with cascading sort sheets (CCS) in Ajax, together with developing the types, exhibiting a menu, styling textual content, dealing with colours and backgrounds, and more
  • Working with Ajax and PHP

Complete with a significant other website, loose Ajax frameworks, and pattern code you should use, Ajax for Dummies is your pleasant advisor to making really ordinary net sites!

Note: CD-ROM/DVD and different supplementary fabrics should not integrated as a part of booklet file.

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Additional info for Ajax For Dummies®

Example text

Js is loaded automatically as well, and the code from that file is run. Many of the Ajax applications I show you use external scripts, so understanding this aspect of JavaScript is important. Examining script errors Believe it or not, sometimes the JavaScript that people write has errors in it (perhaps not your scripts, but errors have been known to crop up in mine). You can view the errors and get a short description of them from various browsers. These errors can help you debug the problem — except, that is, when the error message is so terse that it’s no help at all.

Bgcolor property to the text ‘pink’. ) When you click this page, it turns pink, as you can see in Figure 2-9 (where it appears in glorious black and white). Not bad. 35 36 Part I: Getting Started Will the browser understand the word pink? Sure will — all modern browsers come with dozens of words standing for colors already built in. bgcolor, not only pink but blue, green, yellow, and even coral or cyan. If you don’t want an event to trigger an inline script but instead want to call JavaScript in a