Because JavaScript is not a stand-alone technology, this book shows you how to work with such things as forms, graphics images, sound files, hyperlinks, and cascading style sheets (CSS). You will learn how to write not only JavaScript that can stand on its own within a Web page, but also how to write scripts that call functions or otherwise interact with applications written in other development languages. The programming concepts discussed within the book and shown by its examples are directly applicable to writing code in other languages. The JavaScript examples in the book's projects show where and how to insert JavaScript code within HTML tags and how to work with the document object model (DOM) to execute functions that make an otherwise static Web page an interactive document.