input (type="button") | NN 2 IE 3 DOM 1
The button object is a form control generated with an input element whose type attribute is set to "button". The button's text label comes from its value attribute and property. This element is similar to, but differs from, the button element. For details on the distinctions, see the button HTML element description in Chapter 8.
HTML Equivalent
    <input type="button">
Object Model Reference
    [window.]document.formName.elementName
    [window.]document.forms[i].elements[i]
    [window.]document.getElementById("elementID")
Object-Specific Properties
dataFld | dataSrc | form | name | type | value
Object-Specific Methods
createTextRange( ) | handleEvent[ ]
Object-Specific Event Handler Properties
Handler | NN | IE | DOM
onblur | 6 | 4 | 2
onclick | 2 | 3 | 2
onfocus | 6 | 4 | 2
onmousedown | 4 | 4 | 2
onmousemove | 6 | 4 | 2
onmouseout | 6 | 4 | 2
onmouseover | 6 | 4 | 2
onmouseup | 4 | 4 | 2

dataFld | NN n/a IE 4 DOM n/a
| Read/Write
Used with IE data binding to associate a remote data source column name to a button object's value property. 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. Works only with text file data sources in IE 5/Mac.
Example
    document.myForm.myButton.dataFld = "linkURL";
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 data binding to specify the ID of the page's object element that loads the data source object for remote data access. Content from the data source is specified via the datafld attribute. Setting both the dataFld and dataSrc properties to empty strings breaks the binding between element and data source. Works only with text file data sources in IE 5/Mac.
Example
    document.myForm.myButton.dataSrc = "DBSRC3";
Value
Case-sensitive identifier of the data source.
Default
None.

form | NN 2 IE 3 DOM 1
| Read-only
Returns a reference to the form element that contains the current element. When processing an event from this element, the event handler function automatically has access to the input element (as the event object's target or srcElement property). By reading the form property, the script can easily access other controls within the same form.
Example
    var theForm = evt.srcElement.form;
Value
form element object reference.
Default
None.

name | NN 2 IE 3 DOM 1
| Read/Write
This is 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. Despite the modern standards' preference for the id attribute, many browsers still require that a form control be assigned a name attribute to allow the control's value to be submitted.
Example
    document.orderForm.myButton.name = "Win32";
Value
Case-sensitive string 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 == "button") {
        // process button input type here
    }
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
checkbox

value | NN 2 IE 3 DOM 1
| Read/Write
This is one of the rare times that the value property controls the label of a form control: the text that appears on the button. A button input element is not submitted with the form.
Example
    document.forms[0].myButton.value = "Undo";
Value
String.
Default
None.

createTextRange( ) | NN n/a IE 4(Win) DOM n/a
Creates a TextRange object containing the button's label text. See the TextRange object for details.
Parameters
None.
Returned Value
TextRange object.

handleEvent[ ] | NN |4| IE n/a DOM n/a
handleEvent(event) |
Instructs the object to accept and process the event whose specifications are passed as the parameter to the method. The object must have an event handler for the event type to process the event. Navigator 4 only.
Parameters
A Navigator 4 event object.
Returned Value
None.