Javascript [Electronic resources] : The Definitive Guide (4th Edition) نسخه متنی

Availability

JavaScript 1.2; HTML 4.0

Synopsis

<element onclick="handler" ... >
element.onclick

Description

The onclick property
of an HTMLElement object specifies an event handler function that is
invoked when the user clicks on the
element. Note that
onclick is different than
onmousedown. A click event does not occur unless a
mousedown event and the subsequent mouseup event both occur over the
same element.

The initial value of this property is a function that contains the
JavaScript statements specified by the onclick
attribute of the HTML tag that defined the object. When an event
handler function is defined by an HTML attribute, it is executed in
the scope of element rather than in the
scope of the containing window.

In the Netscape 4 event model, the onclick handler
function is passed an Event object as an argument. In the IE event
model, no argument is passed, but the applicable Event object is
available as the event property of the Window
object that contains the element.

In Netscape 4, the Event.which property specifies
which mouse button was pressed. In IE 4, the
Event.button property specifies the button number.

See Also

Event, Input.onclick; Chapter 19; EventListener,
EventTarget, and MouseEvent in the DOM reference section