Mastering Ajax, Part 3: Advanced requests and responses in Ajax

Article by Brett McLaughlin, 13 pages, 1 hour.
Although I didn't read the first two parts of this article, the third installment was readable on itself. It gives an introduction into the major properties of the XMLHttpRequest object and how you can use them in an Ajax application. The author sometimes repeats himself a bit too often, which is when it feels like he needs to fill a certain number of pages. But overall it a good read and gives some useful background information on Ajax technology.
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