Below is a table of the most common client side events in JavaScript. The Table is divided into three columns – the first lists the name of the event. The second contains a short description of the event, and the third lists all page objects, which support the given event.
| Event Name | Description | Supported by objects |
onabort | The onabort event occurs when loading of an image is aborted. | image |
onblur | The onblur event occurs when an object loses focus. | button, checkbox, fileUpload, layer, frame, password, radio, reset, submit, text, textarea, window |
onchange | The onchange event occurs when the content of a field changes. | fileUpload, select, text, textarea |
onclick | The onclick event occurs when an object gets clicked. | button, document, checkbox, link, radio, reset, submit |
ondblclick | The ondblclick event occurs when an object gets double-clicked. | document, link |
onerror | The onerror event is triggered when an error occurs loading a document or an image. | window, image |
onfocus | The onfocus event occurs when an object gets focus. | button, checkbox, fileUpload, layer, frame, password, radio, reset, select, submit, text, textarea, window |
onkeydown | The onkeydown event occurs when a keyboard key is pressed.
| document, image, link, textarea |
onkeypress | The onkeydown event occurs when a keyboard key is pressed or held down. | document, image, link, textarea |
onkeyup | The onkeyup event occurs when a keyboard key is released. | document, image, link, textarea |
onload | The onload event occurs immediately after a page or an image is loaded. | image, layer, window |
onmousedown | The onmousedown event occurs when a mouse button is clicked. | button, document, link |
onmousemove | The onmousemove event occurs when the mouse pointer is moved.
| onmousemove is, by default, not an event of any object, because mouse movement happens very frequently. |
onmouseout | The onmouseout event occurs when the mouse pointer moves away from a specified object. | layer, link |
onmouseover | The onmouseover event occurs when the mouse pointer moves over a specified object. | layer, link |
onmouseup | The onmouseup event occurs when a mouse button is released. | button, document, link |
onreset | The onreset event occurs when the reset button in a form is clicked. | Form |
onresize | The onresize event occurs when a window or frame is resized. | Window |
onselect | The onselect event occurs when text is selected in a text or textarea field. | text, textarea |
onsubmit | The onsubmit event occurs when the submit button in a form is clicked. | Form |
onunload | The onunload event occurs when a user exits a page.
| window |