DHTML is a fairly recent development for the web. In the technical terms from Netscape Developer Central: "Dynamic HTML is a set of technologies incorporated into Netscape Communicator which provides the next major step forward in the evolution of HTML. Static content is transformed into interactive applications. Dynamic HTML is based on technologies developed in conjunction with the World Wide Web Consortium, including HTML, style sheets (CSS1 and HTML positioning), and JavaScript. Together, these technologies support richer, more dynamic content" Thanks to DHTML, web sites can now enjoy a more interactive, intelligent, user-oriented environment. It is now possible to do things that were out of the reach of standard HTML. For more info, visit Netscape Developer Central. At the moment, DHTML is supported only by 4.0 browsers.