/**
* Return the url to a photo
*
* @param Zend_Db_Table_Row $photo
* @return string
*/
public function photoUrl($photo, $variant = '')
{
require_once APPLICATION_PATH . '/models/PhotoModel.php';
$model = new PhotoModel();
$path = $model->getImageFileName($photo, $variant);
return substr($path, stripos($path, 'public') + 6);
}