JavaScript onerror Event

Definition and Usage

The onerror event is triggered when an error occurs loading a document or an image.

Syntax

onerror="SomeJavaScriptCode"

Parameter	Description
SomeJavaScriptCode	Required. Specifies a JavaScript to be executed when the event occurs.

Supported by the following HTML tags:

<img>, <object>, <style>

Supported by the following JavaScript objects:

window, image

---

Example

In this example an alert box will be displayed if an error occurs when loading an image:

<img src="image.gif" onerror="alert('The image could not be loaded.')">