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HTML / XHTML Standard Event Attributes

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Standard Event Attributes

HTML 4 added the ability to let events trigger actions in a browser, like starting a JavaScript when a user clicks on an element.

To learn more about programming events, please visit our JavaScript tutorial and our DHTML tutorial.

Below is the standard event attributes that can be inserted into HTML / XHTML elements to define event actions.

<body> and <frameset> Events

The two attributes below can only be used in <body> or <frameset>:

Attribute	Value	Description
onload	script	Script to be run when a document load
onunload	script	Script to be run when a document unload

Form Events

The attributes below can be used in form elements:

Attribute	Value	Description
onblur	script	Script to be run when an element loses focus
onchange	script	Script to be run when an element changes
onfocus	script	Script to be run when an element gets focus
onreset	script	Script to be run when a form is reset
onselect	script	Script to be run when an element is selected
onsubmit	script	Script to be run when a form is submitted

Image Events

The attribute below can be used with the img element:

Attribute	Value	Description
onabort	script	Script to be run when loading of an image is interrupted

Keyboard Events

Valid in all elements except base, bdo, br, frame, frameset, head, html, iframe, meta, param, script, style, and title.

Attribute	Value	Description
onkeydown	script	Script to be run when a key is pressed
onkeypress	script	Script to be run when a key is pressed and released
onkeyup	script	Script to be run when a key is released

Mouse Events