hidden | NN 3 IE 4 DOM 1
The hidden object is a form control generated with an INPUT element whose TYPE attribute is set to "hidden". This element has no event handlers, because users do not interact directly with the element. Be aware that any values assigned to a hidden object are removed if the user reloads the page. In other words, it does not function as a persistent store. The Win32 version of Internet Explorer 4 exposes many more properties than are listed below. Most of these are included in the internal object definition for consistency across other text-oriented form controls, but have no significance for a hidden object.
HTML Equivalent
    <INPUT TYPE="hidden">
Object Model Reference
NN | [window.]document.formName.elementName [window.]document.forms[i].elements[i]
IE | [window.]document.formName.elementName [window.]document.forms[i].elements[i] [window.]document.all.elementID

dataFld property | NN n/a IE 4 DOM n/a
| Read/Write
Used with IE 4 data binding to associate a remote data source column name with the element's value. A DATASRC attribute must also be set for the element. Setting both the dataFld and dataSrc properties to empty strings breaks the binding between element and data source.
Example
    document.all.myObject.dataFld = "price"
Value Case-sensitive identifier of the data source column.
Default | None.

dataSrc | NN n/a IE 4 DOM n/a
| Read/Write
Used with IE 4 data binding to specify the name of the remote ODBC data source (such as an Oracle or SQL Server database) to be associated with the element. Setting both the dataFld and dataSrc properties to empty strings breaks the binding between element and data source.
Example
    document.all.inventoryTable.dataSrc = "#DBSRC3"
Value Case-sensitive identifier of the data source.
Default | None.

disabled | NN n/a IE 4 DOM 1
| Read/Write
Normally, this property determines whether the element is available for user interaction. Its importance for a hidden element is that when this property is set to true, the element's name/value pair is not submitted with the form.
Example
    document.forms[0].elements[3].disabled = true
Value Boolean value: true | false.
Default | false

form | NN 2 IE 3 DOM n/a
| Read-only
Returns a reference to the FORM element that contains the current element (if any). This property is most often passed as a parameter for an event handler, using the this keyword to refer to the current form control. It has little significance for a hidden form element.
Value Object reference.
Default | None.

name | NN 2 IE 3 DOM 1
| Read/Write
The identifier associated with the form control. The value of this property is submitted as one-half of the name/value pair when the form is submitted to the server. Names are hidden from user view, since control labels are assigned via other means, depending on the control type. Form control names may also be used by script references to the objects.
Example
    document.orderForm.compName.name = "company"
Value Case-sensitive identifier that follows the rules of identifier naming: it may contain no whitespace, cannot begin with a numeral, and should avoid punctuation except for the underscore character.
Default | None.

type | NN 3 IE 4 DOM 1
| Read-only
Returns the type of form control element. The value is returned in all lowercase letters. It may be necessary to cycle through all form elements in search of specific types to do some processing on (e.g., emptying all form controls of type "text" while leaving other controls untouched).
Example
    if (document.forms[0].elements[3].type ==  "text") {
        ...
    }
Value Any of the following constants (as a string): button | checkbox | file | hidden | image | password | radio | reset | select-multiple | select-one | submit | text | textarea.
Default | hidden

value | NN 2 IE 3 DOM 1
| Read/Write
Current value associated with the form control that is submitted with the name/value pair for the element. All values are strings, but they may represent other kinds of data, including Boolean and numeric values.
Example
    document.forms[0].price.value = "33.95"
Value String.
Default | None.