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Although nearly after three years since Ajax became the byword for the next stage in web and applications development, developers are still haunted by the fact that there are actually few testing tools developed that could handle the particular type of development technique. Developers could of course choose to manually inspect the application but considering the time and resources spent in checking a single application, it is always a better practice to purchase a license for a test
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Date Added: May 8, 2008 Hits: 5 Rating: 0.00 Votes: 0
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Ajax is only a name given to a set of tools that were previously existing.
The main part is XMLHttpRequest, a class usable in JavaScript , that was implemented into Internet Explorer since the 4.0 version.
The same concept was named XMLHTTP some times, before the Ajax name becomes commonly used.
The use of XMLHttpRequest in 2005 by Google, in Gmail and GoogleMaps has contributed to the success of this format. But this is the name Ajax itself that made the technology so popular.
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Date Added: Dec 21, 2006 Hits: 86 Rating: 4.00 Votes: 1
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You've probably seen the CAPTCHA technique used to prevent automatic form submission by spambots and other nuisances.
These operate by displaying an image containing a random string. These strings are very hard for computer programs to read, but straightforward for humans. The user must then enter the displayed string correctly in a form field in order to submit the form.
In many cases, the comparison of the two strings (displayed and entered) is carried out AFTER form submission. It would be nicer if it could be carried out BEFORE submission, using Ajax, as part of the normal form validation.
In this little project we do just that. Our form contains an image generated on-the-fly by a PHP routine using PHP's inbuilt GD graphics library.
Before reading through this tutorial, you'll need a little knowledge about the general architecture of Ajax applications. All the required information is in the pages of this site.
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Date Added: Dec 22, 2006 Hits: 514 Rating: 4.00 Votes: 1
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One of the newest things to take the web development industry by storm is the use of AJAX (Asynchronous Javascript And XML), which uses the XMLHttpRequest object. The beauty of this new technology is it allows designers and developers to add interactive or live parts to their website without have to reload the page. This can include live information such as stock market values (the FTSE 100 is a great example as its value can change as quickly as every minute) and the number of posts on a forum. All these values could change on a page without having to refresh to page every minute.
This tutorial will hopefully give you some idea on how to use the XMLHttpRequest object in your website apps to improve user interactivity and the general functionality of your website. It is advised that you have some background knowledge of JavaScript, and for this example, PHP (or some other server-side scripting language such as Perl or ASP).
Below is the entire code of the script, so you can see what it will look like at the end. I will go through each part in turn through the tutorial:
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Date Added: Jan 1, 2007 Hits: 89 Rating: 0.00 Votes: 0
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OK, this is my second tutorial for AJAX Freaks, so bear with me. Have you ever seen or wished you could have live data on your website? Have you got data stored in a database that UPDATEs reguarly? This tutorial will explain how you can achieve this effect using AJAX and PHP. As I mentioned in my first tutorial, this can be achieved in almost any server side scripting langauge, as long as you know how to make database queries in your desired langauge. I suggest that you know how to use the basic XMLHttpRequest object, if not then you might want to check out my first tutorial on introducing you to AJAX found here. You can find the entire
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Date Added: Jan 1, 2007 Hits: 74 Rating: 0.00 Votes: 0
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In AJAX, most of the action occurs inside a single web page. When a page is loaded, a new instance of the JavaScript interpreter is started. When you leave a page, jumping to Google for example, all of your JavaScript objects are completely cleared away; you lose all of your state.
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Date Added: Nov 11, 2006 Hits: 33 Rating: 0.00 Votes: 0
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Bruce Perry have written a good article on XML.com about Prototype and how it's Easing AJAX's Pain. Bruce, author of AJAX Hacks, have started with introducing Prototype, how to setting up the library, creating Prototype Objects ...etc. In the next article Bruce will discusses AJAX caching strategy with the same application.
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Date Added: Nov 11, 2006 Hits: 9 Rating: 0.00 Votes: 0
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Alejandro Gervasio have a new article titled Take AJAX to Your Email Inbox: Developing a Web-based POP 3 Client published on DevArticles. This new tutorial is a great introduction to create your own AJAX Webmail with PHP. In this first part Alejandro started by introduction the webmail interface, stylesheets, markups and Creating the skeleton of the client-side application layer.
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Date Added: Nov 11, 2006 Hits: 30 Rating: 0.00 Votes: 0
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