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 are the standard event attributes that can be inserted into HTML5 elements to define event actions.
New : New event attributes in HTML5.
Window Event Attributes
Events triggered for the window object.
Applies to the <body> tag:
| Attribute | Value | Description |
|---|---|---|
| onafterprintNew | script | Script to be run after the document is printed |
| onbeforeprintNew | script | Script to be run before the document is printed |
| onbeforeonloadNew | script | Script to be run before the document loads |
| onblur | script | Script to be run when the window loses focus |
| onerrorNew | script | Script to be run when an error occur |
| onfocus | script | Script to be run when the window gets focus |
| onhaschangeNew | script | Script to be run when the document has change |
| onload | script | Script to be run when the document loads |
| onmessageNew | script | Script to be run when the message is triggered |
| onofflineNew | script | Script to be run when the document goes offline |
| ononlineNew | script | Script to be run when the document comes online |
| onpagehideNew | script | Script to be run when the window is hidden |
| onpageshowNew | script | Script to be run when the window becomes visible |
| onpopstateNew | script | Script to be run when the window's history changes |
| onredoNew | script | Script to be run when the document performs a redo |
| onresizeNew | script | Script to be run when the window is resized |
| onstorageNew | script | Script to be run when a document loads |
| onundoNew | script | Script to be run when a document performs an undo |
| onunloadNew | script | Script to be run when the user leaves the document |
Form Events
Events triggered by actions inside a HTML form.
Applies to all HTML5 elements, but is most common 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 |
| oncontextmenuNew | script | Script to be run when a context menu is triggered |
| onfocus | script | Script to be run when an element gets focus |
| onformchangeNew | script | Script to be run when a form changes |
| onforminputNew | script | Script to be run when a form gets user input |
| oninputNew | script | Script to be run when an element gets user input |
| oninvalidNew | script | Script to be run when an element is invalid |
| onreset | script | Script to be run when a form is reset Not supported in HTML5 |
| onselect | script | Script to be run when an element is selected |
| onsubmit | script | Script to be run when a form is submitted |
Keybord Events
Events triggered by a keyboard.
Applies to all HTML5 elements.
| 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
Events triggered by a mouse, or similar user actions:
Applies to all HTML5 elements.
| Attribute | Value | Description |
|---|---|---|
| onclick | script | Script to be run on a mouse click |
| ondblclick | script | Script to be run on a mouse double-click |
| ondragNew | script | Script to be run when an element is dragged |
| ondragendNew | script | Script to be run at the end of a drag operation |
| ondragenterNew | script | Script to be run when an element has been dragged to a valid drop target |
| ondragleaveNew | script | Script to be run when an element leaves a valid drop target |
| ondragoverNew | script | Script to be run when an element is being dragged over a valid drop target |
| ondragstartNew | script | Script to be run at the start of a drag operation |
| ondropNew | script | Script to be run when dragged element is being dropped |
| onmousedown | script | Script to be run when a mouse button is pressed |
| onmousemove | script | Script to be run when the mouse pointer moves |
| onmouseout | script | Script to be run when the mouse pointer moves out of an element |
| onmouseover | script | Script to be run when the mouse pointer moves over an element |
| onmouseup | script | Script to be run when a mouse button is released |
| onmousewheelNew | script | Script to be run when the mouse wheel is being rotated |
| onscrollNew | script | Script to be run when an element's scrollbar is being scrolled |
Media Events
Events triggered by medias like videos, images and audio.
Applies to all HTML5 elements, but is most common in media elements, such as audio, embed, img, object, and video:
| Attribute | Value | Description |
|---|---|---|
| onabort | script | Script to be run on an abort event |
| oncanplayNew | script | Script to be run when media can start play, but might has to stop for buffering |
| oncanplaythroughNew | script | Script to be run when media can be played to the end, without stopping for buffering |
| ondurationchangeNew | script | Script to be run when the length of the media is changed |
| onemptiedNew | script | Script to be run when a media resource element suddenly becomes empty (network errors, errors on load etc.) |
| onendedNew | script | Script to be run when media has reach the end |
| onerrorNew | script | Script to be run when an error occurs during the loading of an element |
| onloadeddataNew | script | Script to be run when media data is loaded |
| onloadedmetadataNew | script | Script to be run when the duration and other media data of a media element is loaded |
| onloadstartNew | script | Script to be run when the browser starts to load the media data |
| onpauseNew | script | Script to be run when media data is paused |
| onplayNew | script | Script to be run when media data is going to start playing |
| onplayingNew | script | Script to be run when media data has start playing |
| onprogressNew | script | Script to be run when the browser is fetching the media data |
| onratechangeNew | script | Script to be run when the media data's playing rate has changed |
| onreadystatechangeNew | script | Script to be run when the ready-state changes |
| onseekedNew | script | Script to be run when a media element's seeking attribute is no longer true, and the seeking has ended |
| onseekingNew | script | Script to be run when a media element's seeking attribute is true, and the seeking has begun |
| onstalledNew | script | Script to be run when there is an error in fetching media data (stalled) |
| onsuspendNew | script | Script to be run when the browser has been fetching media data, but stopped before the entire media file was fetched |
| ontimeupdateNew | script | Script to be run when media changes its playing position |
| onvolumechangeNew | script | Script to be run when media changes the volume, also when volume is set to "mute" |
| onwaitingNew | script | Script to be run when media has stopped playing, but is expected to resume |
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