Where do I start if I want to learn AJAX?
mxh: http://www.ibm.com/developerworks/views/web/libraryview.jsp?...Particularly tutorial 5.It's a pretty good/quick overview of how all the bits of Ajax (JS, the DOM, XHR, Markup, etc.) work together, along with brief, functional examples.  Should get you orientated in a hurry, then you can dive into the various topics as needed.