3. XMLHttpRequest
The Object of the Game
The XMLHttpRequest object isn't part of the DOM. Until recently, it wasn't part of any W3C specification. The success of Ajax has spurred the World Wide Web Consortium into unusually swift action. You can now find a working draft of a specification for the XMLHttpRequest object on the W3C site (www.w3.org/TR/XMLHttpRequest/).
Origins
The idea for an object that can communicate between the client and the server originated with Microsoft. The developers of Microsoft's Web-based mail client, Web Access 2000, needed some way of asynchronously transferring information to and from the browser. The development team for Microsoft Internet Explorer scratched that itch. Internet Explorer 5.0 for Windows was the ...
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