I have Just shown you the Difference Between the HTML,DHTML and XHTML.
HTML is a Hyper Text Markup Language which is used to display the internet website contents on the internet browsers.
This is the common language to develop the web site pages.
DHTML allows scripting languages to change variables in a web page's definition language, which in turn affects the look and function of otherwise "static" HTML page content, after the page has been fully loaded and during the viewing process. Thus the dynamic characteristic of DHTML is the way it functions while a page is viewed, not in its ability to generate a unique page with each page load
XHTML is similar to the HTML but follows the rules of XML. XHTML is used to be compatible with XML programming. Following the rules now would make it possible to include XML programming in the future. It is not difficult to change HTML pages to XHTML, but it can be time-consuming. Finding all line breaks and images to include closing tags, converting any uppercase to lowercase and any other incompatibility can be a nuisance. Using a find and replace program can allow you to edit your code faster, but you still have to reupload all those changes. It is recommended that programmers try to remember these rules to comply with W3C recommendations, so the web pages appear correctly in most browsers. The main differences between HTML and XHTML is the case-sensitivity, the need to use closing tags for all tags, the need to use quotes around all attribute values and that all attributes must be in lowercase as XML requires.
XHTML is HTML reformulated according to the rules of XML (eXtensible Markup Language). It's almost identical to HTML 4.01, but follows stricter rules, such as all tags being in lowercase, no missing end tags, all attributes in quotes, etc.
HTML is Hyper Text Markup language. HTML is the most commonly used programming language for the Internet for static web pages and the output of dynamically created web pages. The Hyper Text Markup language was written specifically for the Internet for websites to display information for Internet users around the world.
DHTML is Dynamic HyperText Markup Language Combines HTML, style sheets, and scripts to make Web pages dynamic or interactive.DHTML is dynamic HTML. Basically, DHTML is a combination of different technologies to make your HTML interactive. Common languages used are HTML (of course), Java and Stylesheets.
XHTM is eXtensible HyperText Markup Language. XHTML 1.0 is the first document type in the XHTML family. It is a reformulation of the three HTML 4 document types as applications of XML. It is intended to be used as a language for content that is both XML-conforming.XHTML is extremely similar but follows the rules of XML. The main differences between HTML and XHTML is the case-sensitivity, the need to use closing tags for all tags, the need to use quotes around all attribute values and that all attributes must be in lowercase as XML requires. Special characters between tags need to be replaced with its code equivalent. Declaring the correct doctype (first line in source code) and language (in meta tag in the head of the source code) is required.