onerror

Type: script code

This event is sent to an image element when an error occurs loading the image.

onload

Type: script code

This event handler will be called on the image element when the image has finished loading. This applies whether the image is applied via the src attribute or the list-style-image style property. If you change the image, the event will fire again when the new image loads. This event will not bubble up the element tree.

src

Type: image URL

The URL of the image to appear on the image. If this attribute is left out, no image appears.

validate

Type: one of the values below

This attribute indicates whether to load the image from the cache or not. This would be useful if the images are stored remotely or you plan on swapping the image frequently. The following values are accepted, or leave out the attribute entirely for default handling:

• always: The image is always checked to see whether it should be reloaded.
• never: The image will be loaded from the cache if possible.

alert-icon

Class that adds an alert icon. This typically looks like an exclamation mark. This and the other icon classes may be used by image elements or other elements which can have an image.

error-icon

Class that adds a error icon. This will typically be a red X icon.

message-icon

Class that adds a message box icon.

question-icon

Class that adds a question icon, which usually looks like a question mark.

accessible

Type: nsIAccessible

Returns the accessibility object for the image.

src

Type: image URL

Gets and sets the value of the src attribute.