HTML Event Attributes

Global Event Attributes¶

Window Event Attributes¶

Events triggered for the window object (applies to the body tag):

Attribute Value Description onafterprint script Script to be run after the document is printed onbeforeprint script Script to be run before the document is printed onbeforeunload script Script to be run when the document is about to be unloaded onerror script Script to be run when an error occurs onhashchange script Script to be run when there has been changes to the anchor part of the a URL onload script Fires after the page is finished loading onmessage script Script to be run when the message is triggered onoffline script Script to be run when the browser starts to work offline ononline script Script to be run when the browser starts to work online onpagehide script Script to be run when a user navigates away from a page onpageshow script Script to be run when a user navigates to a page onpopstate script Script to be run when the window's history changes onresize script Fires when the browser window is resized onstorage script Script to be run when a Web Storage area is updated onunload script Fires once a page has unloaded (or the browser window has been closed)

Form Events¶

Events triggered by actions inside a HTML form (applies to almost all HTML elements, but is most used in form elements):

Attribute Value Description onblur script Fires the moment that the element loses focus onchange script Fires the moment when the value of the element is changed oncontextmenu script Script to be run when a context menu is triggered onfocus script Fires the moment when the element gets focus oninput script Script to be run when an element gets user input oninvalid script Script to be run when an element is invalid onreset script Fires when the Reset button in a form is clicked onsearch script Fires when the user writes something in a search field (for ) onselect script Fires after some text has been selected in an element onsubmit script Fires when a form is submitted Keyboard Events Attribute Value Description onkeydown script Fires when a user is pressing a key onkeypress script Fires when a user presses a key onkeyup script Fires when a user releases a key Mouse Events Attribute Value Description onclick script Fires on a mouse click on the element ondblclick script Fires on a mouse double-click on the element onmousedown script Fires when a mouse button is pressed down on an element onmousemove script Fires when the mouse pointer is moving while it is over an element onmouseout script Fires when the mouse pointer moves out of an element onmouseover script Fires when the mouse pointer moves over an element onmouseup script Fires when a mouse button is released over an element onmousewheel script Deprecated. Use the onwheel attribute instead onwheel script Fires when the mouse wheel rolls up or down over an element Drag Events Attribute Value Description ondrag script Script to be run when an element is dragged ondragend script Script to be run at the end of a drag operation ondragenter script Script to be run when an element has been dragged to a valid drop target ondragleave script Script to be run when an element leaves a valid drop target ondragover script Script to be run when an element is being dragged over a valid drop target ondragstart script Script to be run at the start of a drag operation ondrop script Script to be run when dragged element is being dropped onscroll script Script to be run when an element's scrollbar is being scrolled Clipboard Events Attribute Value Description oncopy script Fires when the user copies the content of an element oncut script Fires when the user cuts the content of an element onpaste script Fires when the user pastes some content in an element Media Events Events triggered by medias like videos, images and audio (applies to all HTML elements, but is most common in media elements, like

Tip: Look at our HTML Audio and Video DOM Reference for more information.

Attribute Value Description onabort script Script to be run on abort oncanplay script Script to be run when a file is ready to start playing (when it has buffered enough to begin) oncanplaythrough script Script to be run when a file can be played all the way to the end without pausing for buffering oncuechange script Script to be run when the cue changes in a element ondurationchange script Script to be run when the length of the media changes onemptied script Script to be run when something bad happens and the file is suddenly unavailable (like unexpectedly disconnects) onended script Script to be run when the media has reach the end (a useful event for messages like "thanks for listening") onerror script Script to be run when an error occurs when the file is being loaded onloadeddata script Script to be run when media data is loaded onloadedmetadata script Script to be run when meta data (like dimensions and duration) are loaded onloadstart script Script to be run just as the file begins to load before anything is actually loaded onpause script Script to be run when the media is paused either by the user or programmatically onplay script Script to be run when the media is ready to start playing onplaying script Script to be run when the media actually has started playing onprogress script Script to be run when the browser is in the process of getting the media data onratechange script Script to be run each time the playback rate changes (like when a user switches to a slow motion or fast forward mode) onseeked script Script to be run when the seeking attribute is set to false indicating that seeking has ended onseeking script Script to be run when the seeking attribute is set to true indicating that seeking is active onstalled script Script to be run when the browser is unable to fetch the media data for whatever reason onsuspend script Script to be run when fetching the media data is stopped before it is completely loaded for whatever reason ontimeupdate script Script to be run when the playing position has changed (like when the user fast forwards to a different point in the media) onvolumechange script Script to be run each time the volume is changed which (includes setting the volume to "mute") onwaiting script Script to be run when the media has paused but is expected to resume (like when the media pauses to buffer more data) Misc Events Attribute Value Description ontoggle script Fires when the user opens or closes the