ActionScript is Macromedia's programming language for Flash MX, the popular authoring tool for creating rich Internet applications and animations for the Web. With Macromedia's new focus on application development, ActionScript now includes a direct drawing API, loading of external MP3 and JPG files, improved sound control, an extensive set of text formatting tools, complete support for component development using movie clip subclasses, local data storage, accessibility features, and more. Thoroughly updated to cover the new version of Macromedia Flash - Flash MX - this second edition builds on the strengths of the original book while incorporating changes from this major revision of the software. Author Colin Moock, has added hundreds of new code examples to show new Flash MX techniques in the real world: how to draw circles, save data to disk, convert arrays to onscreen tables, create reusable components, and preload variables, XML, and sounds. The book's language reference alone has nearly doubled from the first edition, with more than 250 new classes, objects, methods, and properties. You'll find exhaustive coverage of dozens of undocumented, under-documented, and mis-documented features. Along with the new material, Colin Moock has revised the entire text to conform to Flash MX best-coding practices. In particular, objected-oriented programming and the new event model get special attention in light of changes to Flash MX ActionScript. From sending data between two movies to creating getter/setter properties, the new edition of this book demystifies the often-confusing new features of Flash MX, giving developers easy access to its powerful new capabilities. The book is structured so non-programmers can learn how to use ActionScript and programmers can enhance their skills.