javascriptdomvideotutorialswebVideo Presentation: Douglas Crockford on the “Theory of the DOM” - The Web Standards Project
Video Presentation: Douglas Crockford on the “Theory of the DOM” - The Web Standards Project webstandards.org
Each are half an hour long, and - having been in the training myself - I must say they taught me more about JavaScript and the DOM than a lot of books and hours of researching why something just didn’t work.