Drupal 6 is loaded with new features, and not all of them are necessarily implemented in PHP. This unique book, for web designers and developers, will take you through what can be done with JavaScript (and especially with jQuery) in Drupal 6. With the combination of the powerhouse jQuery library with its own robust set of JavaScript tools, Drupal 6 comes with a pre-packaged killer JavaScript environment. Cross-platform by nature, it provides all of the tools necessary to create powerful AJAX-enabled scripts, gorgeous visual effects, and view-enhancing behaviors. In addition, Drupal developers have ported some of its most powerful PHP tools - like a theming engine and support for localization and language translation - to JavaScript, making it possible to write simple scripts where once only complex PHP code could be used.
What Is HTML5? It is really difficult to complain about something that is free but I did spend the time to read the entire pamphlet ...