The Input object

The Input object represents an INPUT element, which can be of the following types: button, checkbox, file, hidden, image, password, radio, reset, submit, or text.

Input Object Examples

Example	IE 5.5	NN 4.7	NN 6.2
Check and uncheck a checkbox	X	X	X
Disable and enable a field	X		X
Set maximum number of characters	X		X
Make a field read only	X		X
Change the size of a field	X		X
Set and return values from radio buttons	X	X	X
Set focus on a field	X	X	X
Select the field's text	X	X	X

Properties

Property	Description
accessKey	Specifies a keyboard key to access the input element
accept	Specifies a list of content types a server processing this form will handle correctly
align	Sets the alignment of a input element
alt	Sets or returns an alternate text to write if the browser cannot show this input element
checked	Sets or returns a Boolean value that indicates whether a radio or checkbox is checked or unchecked
defaultValue	Sets or returns the default value for an input element
defaultChecked	Sets the checked property to true (works with radio buttons and checkboxes)
disabled	Sets or returns a Boolean value that indicates whether an input element is disabled or enabled
form	Returns the form element to the input element
maxLength	Sets or returns the maximum number of characters allowed in a text field
name	Sets or returns the name of the input element
readOnly	Sets or returns a Boolean value that indicates whether an input element is read only or writeable (works with text fields and password fields)
size	Sets or returns the size of a text field
src	Sets or returns the URL of the image on a submit button (for type="image")
tabIndex	Sets or returns the input element's position in the tab order
type	Returns the type of the input element
useMap
value	Sets or returns the value of radio buttons and checkboxes

Methods

Method	Description
blur()	The input element loses focus
focus()	The input element gets focus
select()	The input element is selected
click()	Makes a mouse click for these input elements: 'button', 'checkbox', 'radio', reset', and 'submit'

Jump to: Top of Page or HOME or Printer friendly page

Search W3Schools:

What Others Say About Us

Does the world know about us? Check out these places:

Dogpile Alta Vista MSN Google Excite Lycos Yahoo Ask Jeeves

We Help You For Free. You Can Help Us!

W3Schools is for training only. We do not warrant its correctness or its fitness for use. The risk of using it remains entirely with the user. While using this site, you agree to have read and accepted our terms of use and privacy policy.

How we converted to XHTML

ASP Ecommerce & Shopping Cart

Your own Web Site?

Read W3Schools
Hosting Tutorial

$15 Domain Name
Registration
Save $20 / year!

Advertise
at W3Schools

Only 0.5 CPM

SELECTED LINKS

University Online
Master Degree
Bachelor Degree

Web Software

The Future of
Web Development

Jobs and Careers

Web Security
Web Statistics
Web Standards

PARTNERS

W3Schools
TopXML
VisualBuilder
XMLPitstop
DevelopersDex
DevGuru
Programmers Heaven
The Code Project
Tek Tips Forum
ZVON.ORG
TopXML Search