[Chapter 21] Reference: Checkbox.onclick()
Author: David Flanagan
Date: Fri Aug 29 11:14:19 1997

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| Chapter 21 JavaScript Reference |

# Checkbox.onclick() Handler

## Name

Checkbox.onclick() Handler---invoked when a Checkbox is selected

## Availability

Navigator 2.0, Internet Explorer 3.0

## Synopsis

    <INPUT TYPE="checkbox"   a definition of the handler
           onClick="handler-statements">
    checkbox.onclick  a reference to the handler
    checkbox.onclick();   an explicit invocation of the handler

## Description

`onclick()` is an event handler invoked when the user clicks on a Checkbox. This event handler is defined by the `onClick` attribute of the HTML `<INPUT>` tag that defines the Checkbox. The value of this attribute may be any number of JavaScript statements, separated by semicolons; these statements will be executed when the user clicks on (i.e., checks or unchecks) the Checkbox.

## See Also

"Checkbox"

Checkbox.onblur() |  | Checkbox.onfocus()