Webmaster in a Nutshell, Third Edition

Name

Input

Synopsis

                     form.elements[i]
form.elements[name]
form.name
                  

Properties

The Input object defines properties for each of the attributes of the HTML <input> tag, such as maxLength, readOnly, size, and tabIndex. In addition, it defines the following properties:

checked

A read/write boolean that specifies whether an input element of type “checkbox” or “radio” is checked (true) or not (false).

defaultChecked

A boolean that specifies whether an input element of type “checkbox” or “radio” is checked when first created or when it is reset to its initial state.

defaultValue

A string that specifies the text that appears in an input element of type “text” or “password” when it is first created or when it is reset to its initial state. For security reasons, this property does not affect input elements of type file.

form

A read-only reference to the Form object that contains the element. This property is defined for input elements of all types.

name

The name of this input element, as specified by the HTML name attribute. This property is defined for input elements of all types.

type

A string that specifies the type of the form element. This property mirrors the HTML type attribute. Legal values are listed in the following table; the default is text. Submit and Textarea objects also have a type property, with possible values select-one, select-multiple, and textarea. JS 1.1.

Type	Description
“button”	Push button
“checkbox”	Checkbox element
“file”	File upload element
“hidden” ...