What is AJAX, what's FF n how is it used

Shams@ hi ved AJAX is a mix of technologies which allows you to get extra data from the Web server even after the page has finished loading. JavaScript is used to send requests to PHP pages which get the data from MySQL and send it back to the JavaScript which then displays the data on the page or uses it in other ways. Google's autocomplete search box may be the best known example. AJAX is really easy. There is almost nothing to learn as it is just a mix of what you already know. It can use other technologies but here it is a mix of XHTML, JavaScript, PHP and MySQL By the way, Ajax is shorthand for Asynchronous JavaScript and XML (and DHTML, and so on) RegardsShams

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Dear Ved, Ajax is a catchy name for a type of programming made popular in 2005 by Google and other big web developers. Ajax loosely stands for Asynchronous Javascript And XML, but that just sounds like techno jargon to many people. When javascript was released, people loved all the cool things you could do with the web browser to make a more user-friendly experience. You could do form validation, quirky popup messages, make cool web tools and more. However, Javascript had no way of sending information between the web browser and the web server. If you wanted to get any information from a database on the server, or send user information to a server-side script like PHP, you had to make an HTML form to GET or POST data to the server. The user would then have to click "Submit", wait for the server to respond, then a new page would load with the results. I'm sure we have all gotten slightly annoyed when having to wait for especially slow websites! Ajax attempts to remedy this problem by letting your Javascript communicate directly with the server, using a special Javascript object XMLHttpRequest. With this object, your Javascript can get information from the server without having to load a new page!

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