HTML 4.0 Event Attributes
New to HTML 4.0 is the ability to let HTML events trigger actions in the
browser, like starting a JavaScript when a user clicks on an HTML element. Below
is a list of attributes that can be inserted into HTML tags to define event
actions.
If you want to learn more about programming with these events, you should
study our JavaScript tutorial and our DHTML
tutorial.
Window Events
Only valid in body and frameset elements.
| Attribute |
Value |
Description |
| onload |
script |
Script to be run when a document loads
|
| onunload |
script |
Script to be run when a document unloads
|
Form Element Events
Only valid in form elements.
| Attribute |
Value |
Description |
| onchange |
script |
Script to be run when the element changes
|
| onsubmit |
script |
Script to be run when the form is submitted
|
| onreset |
script |
Script to be run when the form is reset
|
| onselect |
script |
Script to be run when the element is selected
|
| onblur |
script |
Script to be run when the element loses focus
|
| onfocus |
script |
Script to be run when the element gets focus |
Keyboard Events
Not valid in base, bdo, br, frame, frameset, head, html, iframe, meta, param, script, style, and title elements.
| Attribute |
Value |
Description |
| onkeydown |
script |
What to do when key is pressed |
| onkeypress |
script |
What to do when key is pressed and released |
| onkeyup |
script |
What to do when key is released |
Mouse Events
Not valid in base, bdo, br, frame, frameset, head, html, iframe, meta, param, script, style, title elements.
| Attribute |
Value |
Description |
| onclick |
script |
What to do on a mouse click
|
| ondblclick |
script |
What to do on a mouse double-click
|
| onmousedown |
script |
What to do when mouse button is pressed
|
| onmousemove |
script |
What to do when mouse pointer moves
|
| onmouseout |
script |
What to do when mouse pointer moves out of an element
|
| onmouseover |
script |
What to do when mouse pointer moves over an
element
|
| onmouseup |
script |
What to do when mouse button is released
|
|
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