This is a definitive guide for JavaScript. The first eight chapters document the core JavaScript language, and the next six describe how JavaScript works on the client-side to interact with the Web browser and with the Web page. These chapters are followed by a complete reference section that documents every object, property, method, event handler, function, and constructor used by client-side JavaScript. In a separate reference section, you will find the interaction between JavaScript and HTML documented - mainly aspects of HTML that relate to JavaScript. A forthcoming edition of this book will cover the use of JavaScript on Web servers, as well as the object, properties and methods of server-side JavaScript.