From http://www.w3schools.com (Copyright Refsnes Data)

HTML DOM Hidden Object


Hidden Object

The Hidden object represents a hidden input field in an HTML form.

For each instance of an <input type="hidden"> tag in an HTML form, a Hidden object is created.

You can access a hidden input field by searching through the elements[] array of the form, or by using document.getElementById().

IE: Internet Explorer, F: Firefox, O: Opera, W3C: World Wide Web Consortium (Internet Standard).

Hidden Object Properties

Property Description IE  F O W3C
alt Sets or returns an alternate text to display if a browser does not support hidden fields 5 1 9 Yes
form Returns a reference to the form that contains the hidden field 4 1 9 Yes
id Sets or returns the id of a hidden field 4 1 9 Yes
name Sets or returns the name of a hidden field 4 1 9 Yes
type Returns the type of form element a hidden input field is 4 1 9 Yes
value Sets or returns the value of the value attribute of the hidden field 4 1 9 Yes

Standard Properties

Property Description IE  F O W3C
className Sets or returns the class attribute of an element 5 1 9 Yes
dir Sets or returns the direction of text 5 1 9 Yes
lang Sets or returns the language code for an element 5 1 9 Yes
title Sets or returns an element's advisory title 5 1 9 Yes


From http://www.w3schools.com (Copyright Refsnes Data)