BANGALORE, INDIA: You've probably heard all the Ajax hype by now, as well as seen the many products that claim Ajax support or "compliance." However, you probably haven't seen a good, simple technical explanation of what Ajax really "is." In this paper, you'll get an overview of the core fundamentals of what makes Ajax possible without all the usual product-pushing hype.
First of All, is Ajax New?
Ajax is possible because of the leading browsers now offering objects that can make independent XML HTTP requests. Internet Explorer 5 and later offer an XMLHTTP object while Mozilla based browsers provide an XMLHttpRequest object. Both these objects offer essentially the same ability to request XML data from a server and process the data in a similar fashion. The server-side Ajax component can be in any technology providing XML can be delivered dynamically. Any dynamic Web technology ranging from PHP to servlets can serve as an Ajax server.
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