Javascript is a very popular programming language used on the client-side browser to make dynamic and interactive web page. AJAX takes that one step further by making connection to the server without a page load.

There are so many video lectures out there about Javascript, that we categorized them under their own category. Click in the left menu to view the Javascript videos that were found on the web.

The Javascript lectures and the Advanced Javascript lectures by Yahoo's Douglas Crockford are excellent.

As your gain sophistication in your Javascript, you may have a need to traverse the DOM tree and dynamically create elements on the DOM. See the video lecture about the Theory of the DOM.