walkTheDOM

I have just learned an interesting recursive function, called walkTheDOM. It is explained by Douglas Crockford in the video. After about 28 minutes, this function is explained.This simple recursive function shows what hierarchic structure is. He gave in the video, another function, getElementsByClassName using the walkTheDOM. I would like use this smart function for OMap to find out div elements which contain blog post. I found by Google the .ppt file used by him and the link Google gave me is here. His video can be seen at Yahoo! Video. I learned this from Video Presentation: Douglas Crockford on the “Theory of the DOM”.