public function useraction()
 {
     $time = isset($_SERVER['REQUEST_TIME']) ? $_SERVER['REQUEST_TIME'] : time();
     isset($_COOKIE['useraction']) && !empty($_COOKIE['useraction']) && ($cookiestr = $_COOKIE['useraction']);
     $ipstr = isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : '';
     $ip = !empty($ipstr) ? ip2long($ipstr) : 0;
     $cookiearr = !empty($cookiestr) ? $this->decrypt_cookie($cookiestr) : array();
     if (!empty($cookiearr)) {
         $tmp = $time - intval($cookiearr['time']);
         if ($tmp > 3600) {
             misc::set_cookie('useraction', '', $time + 3600, '/', TRUE);
         } else {
             $cookiearr['clicknum'] = $cookiearr['clicknum'] + 1;
             return $this->encrypt_cookie($cookiearr);
         }
     } else {
         $cookiearrb = array('cookiestr' => 'kaoder', 'clicknum' => 1, 'time' => $time, 'ip' => $ip);
         return $this->encrypt_cookie($cookiearrb);
     }
 }