HTML onload Event Attribute HTML Reference


Execute a JavaScript immediately after a page has been loaded:

<body onload="load()">

Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

Note: The onload event attribute is supported in all major browsers.

1. Definition and Usage

The onload attribute fires when an object has been loaded.

onload is most often used within the <body> element to execute a script once a web page has completely loaded all content (including images, script files, CSS files, etc.).

2. Differences Between HTML 4.01 and HTML5


3. Syntax

<element onload="script">

4. Attribute Values

Value Description
script The script to be run on onload

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