What is the DOM?

The Document Object Model is an API for HTML and XML documents. It provides a structural representation of the document, enabling you to modify its content and visual presentation. Essentially, it connects web pages to scripts or programming languages.

All of the properties, methods, and events available to the web developer for manipulating and creating web pages are organized into objects (e.g., the document object that represents the document itself, the table object that represents a HTML table elements, and so forth). Those objects are accessible via scripting languages in most recent web browsers.

The DOM is most often used in conjunction with JavaScript. That is, the code is written in JavaScript, but it uses the DOM to access the web page and its elements. However, the DOM was designed to be independent of any particular programming language, making the structural representation of the document available from a single, consistent API. Though we focus on JavaScript throughout this site, implementations of the DOM can be built for any language.

XULPlanet.com

Welcome to XULPlanet

The XML User Interface Language (XUL) is a markup language for describing user interfaces. With XUL you can create rich, sophisticated cross-platform web applications easily.

JavaScript - MDC

JavaScript is a small, lightweight, object-oriented, cross-platform scripting language.

For information about using JavaScript in browsers, please see DOM and DHTML topics. The Gecko DOM Reference describes the host objects available in Gecko-based browsers.

All extensions are open source. They ship as installable xpi's, which is really just a compressed directory structure. Sometimes they contain jar files, which are another type of compressed directory. My extension uses instead directly the source files. (They are interpreted, not compiled.) So, if you install the TribExt you get the source files. Just search for tribext@someone among your files and you'll find the directory with the source files. You will also find that I never comment my code...