This book doesn't waste time to look at things you already know, like basic syntax and structure. Expert web developer and author John Resig concentrates on fundamental, vital topicswhat JavaScripting modern (and it isn't), the country currently supports a browser, and pitfalls to watch out. The book is organized into four sections: Modern JavaScript developmentusing JavaScript object-oriented way, creating reusable code, plus testing and debugging DOM scriptingupdating content and styles, plus events, and effect and event libraries Ajaxhow Ajax works, overcoming problems, and using libraries to speed up Ajax application development The future JavaScriptlooking on cutting edge topics like JSON, HTML 5, and more All concepts are backed by real-world examples and case studies, and John provides reusable functions and classes to save a lot of your time in your development.