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

Availability

JavaScript 1.0; enhanced in JavaScript 1.1

Synopsis

<input type="submit" onclick="handler" ... >
submit.onclick

Description

The onclick property of a Submit object refers to
an event handler function that is invoked when the user clicks on the

Submit button. See the
HTMLElement.onclick reference page for complete
details. Note, however, that Submit.onclick has
been supported since JavaScript 1.0, unlike the generalized
HTMLElement.onclick handler.

The

Submit button has the special
function of submitting the form to a server. The
onclick event handler may add any additional
functionality to the

Submit button.
In JavaScript 1.1 the onclick handler may return
false to prevent the Submit object from submitting
the form. (For example, the onclick handler could
perform form validation and return false if
required fields in the form are not filled in.)

See Also

Form.onsubmit, Form.submit( ), HTMLElement.onclick; Chapter 19; EventListener, EventTarget, and MouseEvent in
the DOM reference section