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
4. Attribute Values
|script||The script to be run on onload|