JavaScript Programmer's Reference documents JavaScript, JScript, and ECMAScript to the level that they are standard, and go to the catalog publisher of browser extensions have been added to the language. In essence, this book is a source for finding out how the major browsers (Microsoft Internet Explorer, Netscape Navigator, and Opera) implement their Document Object Model (DOM), both standards and exclusive, and how they access DOM elements through JavaScript and similar scripting languages . This is a reference, so do not expect to teach you JavaScript through some sort of tutorial (though reading the object descriptions can be very illuminating, indeed). For example, he includes an entry on Bar.visibility, a property does not exist is sometimes assumed to exist in Netscape Navigator object model Wall. - David Topics covered: JavaScript, JScript, and ECMAScript scripting language, and their implementation in popular browsers as well as in the standard document. Coverage includes JavaScript through version 1.5, JScript through version 5.5, and ECMAScript through version 3. DOM1 standard DOM2 standard is fully closed and sealed as far as it implemented in Netscape Navigator 6. Effectively, this means coverage includes Netscape Navigator through version 6.0, Internet Explorer through version 5.5, and Opera through version 5.