public function saveCityConfig ()
	    {
	        $domains = array_keys ($_POST['city']);
	        
	        if (! empty ($domains))
	        {
                CLUtil::cookieDomains ($domains);
	        }
	    }
        private function injectNewCity ($domain)
        {
            if (! $domain) return;

            $used = CLUtil::getUsedCities ();
            $found = array_search ($domain, $used);
            
            if ($found === false)
            {
                $used[] = $domain;
                sort ($used);
                $this->cities = $used;
                CLUtil::cookieDomains ($used);
            }
        }