Fires immediately before the object is unloaded.
Syntax
| Inline HTML | <ELEMENT onunload = "handler" ... >
| All platforms |
|---|
| Event property | object.onunload = handler | JScript only |
|---|
| object.onunload = GetRef("handler") | Visual Basic Scripting Edition (VBScript) 5.0 or later only |
| Named script |
<SCRIPT FOR =
object EVENT = onunload>
| Internet Explorer only |
|---|
Event Information
| Bubbles | No |
|---|
| Cancels | No |
|---|
| To invoke | - Close the current browser window.
- Navigate to another location by entering a new address or selecting a Favorite.
- Click the Back, Forward, Refresh, or Home button.
- Click on an anchor that refers the browser to another Web page.
- Invoke the anchor click method.
- Invoke the document write method.
- Invoke the document open method.
- Invoke the document close method.
- Invoke the window close method.
- Invoke the window open method, providing the possible value _self for the window name.
- Invoke the window navigate or NavigateAndFind method.
- Invoke the location replace method.
- Invoke the location reload method.
- Specify a new value for the location href property.
- Submit a form to the address specified in the ACTION attribute via the INPUT type=submit control,
or invoke the
submit method.
|
|---|
| Default action |
Removes the object or document from the browser window. |
|---|
Event Object Properties
Although event handlers in the DHTML Object Model do not receive parameters directly, a handler can query an event object for data.
Available Properties
| altKey |
Sets or retrieves a value that indicates the state of the ALT key. |
|---|
| altLeft |
Sets or retrieves a value that indicates the state of the left ALT key. |
|---|
| ctrlLeft |
Sets or retrieves the state of the left CTRL key.
|
|---|
| shiftLeft |
Retrieves the state of the left SHIFT key.
|
|---|
| type |
Sets or retrieves the event name from the event object. |
|---|
Example
This example shows how to use the onunload event to run script when the window object has been unloaded.
<HEAD>
<SCRIPT FOR=window EVENT=onunload>
alert("The onunload event fired for the window object.");
</SCRIPT>
</HEAD>
<BODY>
<INPUT TYPE=button VALUE="Go To Page 2" onclick="fnRelocate()">
<IMG ID=imgTest SRC="/workshop/graphics/prop_rw.gif">
</BODY>This feature requires Microsoft® Internet Explorer 4.0 or later. Click the following icon to install the latest version. Then reload this page to view the sample.

Standards Information
event is defined in
HTML 4.0
.
Applies To
See Also
onload, onbeforeunload