If you’re going to embark on a first-time DOM scripting project, I would definitely suggest starting your journey by visiting the Quirksmode DOM Introduction pages.
Another nice section is filed under Javascript and explains cross-browser Event compatibility which is essential to understand in order to create web applications that make use of AJAX based technologies. We have featured quite a few articles lately on DOM scripting and if you have missed them or if you found them to be a bit advanced, why not go take a look at these two references to DOM, which are perfect for anyone who has limited exposure to it so far.
