function get_browser_language()
 {
     if (isset($_COOKIE['language'])) {
         if ($this->exists($_COOKIE['language'])) {
             $this->set($_COOKIE['language']);
             return true;
         }
     }
     $browser_languages = array('deu' => 'de([-_][[:alpha:]]{2})?|german', 'eng' => 'en([-_][[:alpha:]]{2})?|english', 'spa' => 'es([-_][[:alpha:]]{2})?|spanish', 'fra' => 'fr([-_][[:alpha:]]{2})?|french', 'ita' => 'it|italian', 'nld' => 'nl([-_][[:alpha:]]{2})?|dutch', 'pol' => 'pl|polish', 'rus' => 'ru|russian');
     $httpAcceptLanguage = MyOOS_Utilities::getServerVar('HTTP_ACCEPT_LANGUAGE');
     if (!empty($httpAcceptLanguage)) {
         foreach (explode(',', $httpAcceptLanguage) as $code) {
             foreach ($browser_languages as $key => $value) {
                 if (preg_match('/^(' . $value . ')(;q=[0-9]\\.[0-9])?$/', $code) && $this->exists($key)) {
                     $this->set($key);
                     return true;
                 }
             }
         }
     }
     $this->set(DEFAULT_LANGUAGE);
 }