Developing rich internet applications using HTML, CSS and JavaScript is now a common exercise. While it can be done using only those client-side technologies, JavaScript libraries greatly simplify the task. They also shield developers from most browser differences. The jQuery JavaScript library is a very popular option.

This talk demonstrates building a web application using jQuery. It includes use of jQuery selectors to access DOM elements and attributes, DOM traversal, CSS manipulation, mouse and keyboard event handling, Ajax calls to server-side code using JSON to represent data, dynamic HTML modification, and jQuery UI widgets.