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<p>From <b>http://www.w3schools.com</b> (Copyright Refsnes Data)</p>
<h1>HTML DOM Introduction</h1>
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<p class="intro">The HTML DOM defines a standard for accessing and manipulating
HTML documents.</p>
<hr />
<h2>What You Should Already Know</h2>
<p>Before you continue you should have a basic understanding of the following:</p>
<ul>
<li>HTML / XHTML</li>
<li>JavaScript</li>
</ul>
<p>If you want to study these subjects first, find the tutorials on our
<a href="../default.asp">Home page</a>.</p>
<hr />
<h2>What is the DOM?</h2>
<p>The DOM is a W3C (World Wide Web Consortium) standard.</p>
<p>The DOM defines a standard for accessing documents like HTML and XML:</p>
<p><i>"The W3C Document Object Model (DOM) is a platform and language-neutral
interface that allows programs and scripts to dynamically access and update the
content, structure, and style of a document."</i></p>
<p>The DOM is separated into 3 different parts / levels:</p>
<ul>
<li>Core DOM - standard model for any structured document</li>
<li>XML DOM - standard model for XML documents</li>
<li>HTML DOM - standard model for HTML documents</li>
</ul>
<p>The DOM defines the <b>objects and properties</b> of all document elements,
and the <b>methods</b> (interface) to access them.</p>
<hr />
<h2>What is the XML DOM?</h2>
<p>The XML DOM defines the <b>objects and properties</b> of all XML elements,
and the <b>methods</b> (interface) to access them.</p>
<p>If you want to study the XML DOM, find the XML DOM tutorial on
<a href="../default.asp">our homepage</a>.</p>
<hr />
<h2>What is the HTML DOM?</h2>
<p>The HTML DOM is:</p>
<ul>
<li>A standard object model for HTML</li>
<li>A standard programming interface for HTML</li>
<li>Platform- and language-independent</li>
<li>A W3C standard</li>
</ul>
<p>The HTML DOM defines the <b>objects and properties</b> of all HTML elements,
and the <b>methods</b> (interface) to access them.</p>
<p>In other words:</p>
<p><b>The HTML DOM is a standard for how to get, change, add, or delete HTML
elements.</b></p>
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