DHTML - HTML Events
HTML events can trigger actions in a browser.
HTML Events
Every element on an HTML page has events which can trigger a JavaScript.
For example, we can use the onClick event of a button element to indicate
that a function will run when a user clicks on the button. We define the events
in the HTML tags.
Examples of events:
- A mouse click
- A web page or an image loading
- Mousing over a hot spot on the web page
- Selecting an input field in an HTML form
- Submitting an HTML form
- A keystroke
In the following example, the content of the h1 element will change when a user clicks on it:
Example
<html>
<body>
<h1 onclick="this.innerHTML='Ooops!'">Click on this text</h1>
</body>
</html> |
View it » |
You can also add the script in the head section, and then call a function from the event handler:
Example
<html>
<head>
<script type="text/javascript">
function changetext(id)
{
id.innerHTML="Ooops!";
}
</script>
</head>
<body>
<h1 onclick="changetext(this)">Click on this text</h1>
</body>
</html> |
View it » |
More About HTML Events
For all HTML events, look at our complete HTML DOM Event Object Reference.
 |
More Examples |
onmousedown and onmouseup
Change an image when a user holds down the mouse button.
onload
Display an alert box when the page has finished loading.
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