DHTML - HTML DOM
What is the HTML DOM?
The HTML DOM is:
- A Document Object Model for HTML
- A standard programming interface for HTML
- Platform- and language-independent
- A W3C standard
The HTML DOM defines the objects and properties of all HTML elements,
and the methods (interface) to access them.
In other words: The HTML DOM is a standard for how to get, change, add, or delete HTML
elements.
Change an HTML Element
The following example changes the content of an h1 element:
Example
<html>
<body>
<h1 id="header">Old Header</h1>
<script type="text/javascript">
document.getElementById("header").innerHTML="New Header";
</script>
</body>
</html>
|
Try it yourself »
|
Example explained:
- The HTML document above contains an h1 element with id="header"
- We use the HTML DOM to get the element with id="header"
- A JavaScript changes the content (innerHTML) of that element
Change an HTML Attribute
The following example changes the src attibute of an img element:
Example
<html>
<body>
<img id="image" src="smiley.gif">
<script type="text/javascript">
document.getElementById("image").src="landscape.jpg";
</script>
</body>
</html>
|
Try it yourself »
|
Example explained:
- The HTML document above contains an img element with id="image"
- We use the HTML DOM to get the element with id="image"
- A JavaScript changes the src attribute of that element from "smiley.gif" to
"landscape.jpg"
HTML DOM Tutorial
To learn more about the HTML DOM, please read our
complete HTML DOM tutorial.
Click here to design a Stunning Flash Website for Free
Wix is a revolutionary web design tool that provides anyone with the possibility to create professional and beautiful websites for free.
With e-commerce features, search engine visibility and many more professional tools, Wix is the ultimate solution for creating a spectacular site while saving tons of money.
 |
W3Schools' Online Certification
The perfect solution for professionals who need to balance work, family, and career building.
More than 6000 certificates already issued!
Get Your Certificate »
|
The HTML Certificate documents your knowledge of HTML, XHTML, and CSS.
The JavaScript Certificate documents your knowledge of JavaScript and HTML DOM.
The XML Certificate documents your knowledge of XML, XML DOM and XSLT.
The ASP Certificate documents your knowledge of ASP, SQL, and ADO.
The PHP Certificate documents your knowledge of PHP and SQL (MySQL).
| 
