Button Object
The Button object represents a button in an HTML form. For
each instance of an <input type="button"> tag in an HTML form, a
Button object is created.
You can access a Button object by indexing the elements array
(by number or name) of the corresponding form or by using
getElementById().
IE: Internet Explorer, F: Firefox, N:
Netscape, W3C: World Wide Web Consortium (Internet
Standard).
Button Object Properties
| Property |
Description |
IE |
F |
N |
W3C |
| accessKey |
Sets or returns the keyboard key to
access the button |
5 |
|
|
Yes |
| disabled |
Sets or returns whether or not the
button should be disabled |
5 |
1 |
|
Yes |
| form |
Returns a reference to the form that
contains the button |
3 |
1 |
2 |
Yes |
| id |
Sets or returns the id of the button |
4 |
1 |
|
No |
| name |
Sets or returns the name of the button |
3 |
1 |
2 |
Yes |
| tabIndex |
Sets or returns the index that defines
the tab order for the button |
5 |
|
|
Yes |
| type |
Returns the type of the form element.
For a Button object it will be "button" |
4 |
1 |
3 |
Yes |
| value |
Sets or returns the text that is
displayed on the button |
3 |
1 |
2 |
Yes |
Button Object Methods
| Method |
Description |
IE |
F |
N |
W3C |
| blur() |
Removes focus from the button |
3 |
1 |
2 |
|
| click() |
Simulates a mouse-click on the button |
3 |
1 |
2 |
|
| focus() |
Gives focus to the button |
3 |
1 |
2 |
|
Button Objects Events
Syntax: object.event_name="someJavaScriptCode"
| Event |
Description |
IE |
F |
N |
W3C |
| onBlur |
Executes some code when the button
loses focus |
3 |
1 |
2 |
|
| onClick |
Executes some code when the button is
clicked |
3 |
1 |
2 |
|
| onFocus |
Executes some code when the button gets
focus |
3 |
1 |
2 |
|
| onMouseDown |
Executes some code when a mouse button
is pressed |
4 |
1 |
4 |
|
| onMouseUp |
Executes some code when a mouse button
is released |
4 |
1 |
4 |
|
|
