Hi,
This is my folder structure public_html\themes\bootstrap.
Under bootstrap folder css,js,img are subfolders.
From file.js
$('.footer').css('background-image','url(../img/realestate_hover.png)');
But the image is not showing. How to give the URL.
Thanks in advance
if this snippet in your js file , you should fetch it back from the view , but first you should hide it somewhere :
/**
* This is the shortcut to Yii::app()->request->baseUrl
* If the parameter is given, it will be returned and prefixed with the app baseUrl.
*/
function bu($url = null)
{
static $baseUrl;
if ($baseUrl === null)
$baseUrl = Yii::app()->getRequest()->getBaseUrl();
return $url === null ? $baseUrl : $baseUrl . '/' . ltrim($url, '/');
}
/**
* This is the shortcut to Yii::app()->theme->baseUrl
* If the parameter is given, it will be returned and prefixed with the app baseUrl.
*/
function tu($url = null)
{
static $baseUrl;
if ($baseUrl === null)
$baseUrl = Yii::app()->theme->getBaseUrl();
return $url === null ? $baseUrl : $baseUrl . '/' . ltrim($url, '/');
}
may be tu function is what you need 
:
// hide it some where , in js or html section:
var themeUrl = "<?php echo tu();?>" ;
// html:
<div id="themeUrl" title="<?php echo tu();?>"></div>
// then in your js file refer it : $("#themeUrl").attr("title");