For example, a form input element could be accessed as either or. A hierarchical name could make use of either the names or the sequential index of the traversed elements. Form, link and image elements could be referenced with a hierarchical name that began with the root document object. Legacy DOM was limited in the kinds of elements that could be accessed. The limited facilities for detecting user-generated events and modifying the HTML document in the first generation of these languages eventually became known as "DOM Level 0" or "Legacy DOM." No independent standard was developed for DOM Level 0, but it was partly described in the specifications for HTML 4. JavaScript and JScript let web developers create web pages with client-side interactivity. Netscape's competitor, Microsoft, released Internet Explorer 3.0 the following year with a reimplementation of JavaScript called JScript. JavaScript was released by Netscape Communications in 1995 within Netscape Navigator 2.0. The history of the Document Object Model is intertwined with the history of the " browser wars" of the late 1990s between Netscape Navigator and Microsoft Internet Explorer, as well as with that of JavaScript and JScript, the first scripting languages to be widely implemented in the JavaScript engines of web browsers. Text inserted into HTML elements are text nodes.All HTML attributes are attribute nodes.In HTML DOM (Document Object Model), every element is a node: The W3C now publishes stable snapshots of the WHATWG standard. WHATWG took over the development of the standard, publishing it as a living document. The principal standardization of the DOM was handled by the World Wide Web Consortium (W3C), which last developed a recommendation in 2004. Once an event is triggered, the event handlers get executed. Nodes can have event handlers (also known as event listeners) attached to them. DOM methods allow programmatic access to the tree with them one can change the structure, style or content of a document. Each branch of the tree ends in a node, and each node contains objects. The DOM represents a document with a logical tree. The Document Object Model ( DOM) is a cross-platform and language-independent interface that treats an HTML or XML document as a tree structure wherein each node is an object representing a part of the document.
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