public function getURL()
 {
     global $CONFIG;
     return $CONFIG->isSingleSiteMode ? 'http://' . $CONFIG->webSiteDomain . '/tag/' . $this->tagHistoryModel->getSlug() : 'http://' . $this->site_slug . "." . $CONFIG->webSiteDomain . '/tag/' . $this->tagHistoryModel->getSlug();
 }