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(DHTML) The addition ofJavaScript to HTML to allow web pages to change andinteract with the user without having to communicate with theserver. JavaScript allows the behaviour of the page to becontrolled by code that is downloaded with the HTML. It doesthis by manipulating the Document Object Model (DOM).The term DHTML is often also taken to include the use of"style" information to give finer control of HTML layout. Thestyle information can be supplied as Cascading Style Sheets(CSS) or as "style" attributes (which can be manipulated byJavaScript). Layers are often also used with DHTML.Both the JavaScript and style data can be included in the HTMLfile or in a separate file referred to from the HTML. Someweb browsers allow other languages (e.g. VBScript or Perl)to be used instead of JavaScript but this is less common.DHTML can be viewed in Internet Explorer 4+, Firefox andNetscape Communicator 4+ but, as usual, Microsoft disagreeon how DHTML should be implemented. The Document ObjectModel Group of the World Wide Web Consortium is developingstandards for DHTML. (http://w3c.org/DOM/).