/**
  * Retrieve the top link URL
  *
  * @return false|string
  */
 public function getTopLinkUrl()
 {
     try {
         if ($this->isEnabled()) {
             if ($this->isFullyIntegrated()) {
                 if ($this->_isCached('toplink_url')) {
                     return $this->_cached('toplink_url');
                 }
                 $transport = new Varien_Object(array('toplink_url' => $this->getUrl()));
                 Mage::dispatchEvent('wordpress_get_toplink_url', array('transport' => $transport));
                 $this->_cache('toplink_url', $transport->getToplinkUrl());
                 return $transport->getToplinkUrl();
             }
             return $this->getWpOption('home');
         }
     } catch (Exception $e) {
         $this->log('Magento & WordPress are not correctly integrated (see entry below).');
         $this->log($e->getMessage());
     }
     return false;
 }