# Yahoo! UI Library

### imageloader 2.8.0r4

Yahoo! UI Library > imageloader > YAHOO.util.ImageLoader.bgImgObj
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## Class YAHOO.util.ImageLoader.bgImgObj - extends YAHOO.util.ImageLoader.imgObj

Background image object. A background image is one whose URL is specified by "background-image" in the element's style

### Constructor

YAHOO.util.ImageLoader.bgImgObj `( domId , url )`

Parameters:
  `domId <String>` HTML DOM id of the image element
  `url <String>` URL for the image

#### Properties inherited from YAHOO.util.ImageLoader.imgObj:

`_fetched, domId, height, setVisible, url, width`

### Methods

#### _applyUrl

`private void _applyUrl ( el )`
Inserts the image URL into the DOM so that the image is displayed. Sets style.backgroundImage

Parameters:
  `el <Object>` HTML DOM element

Returns: `void`

#### Methods inherited from YAHOO.util.ImageLoader.imgObj:

`_applyUrl, fetch`

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