Unfortunately, the two leading browsers -- Netscape Navigator and Microsoft Internet Explorer -- use different DOMs. This is one reason why their respective implementations of DHTML are so different. Both companies have submitted their DOMs to the World Wide Web Consortium (W3C) for standardization, which now has the daunting task of specifying a standard DOM without alienating either of the browser giants. The W3C's DOM specification will support both HTML and XML.
Key players in the development of DOM has been people from
ArborText, IBM, Inso EPS, JavaSoft, Microsoft, Netscape, Novell,
the Object Management Group, SoftQuad, Sun Microsystems, and
W3C's DOM Level 1 has built on this functionality.