public static function Login()
  {
       global $db;
        
       $user_login = mysql_real_escape_string($_POST['user_login']);
       $user_pass = mysql_real_escape_string($_POST['user_pass']);
       $result = mysql_query("SELECT * FROM users WHERE user_login = '".$user_login."'",$db) or die(mysql_error($db));
       $r = mysql_fetch_array($result);
       if(empty($r['id'])) {echo "Неверное имя пользователя  или пароль, попробуйте заново.";} else {
         if($r['user_pass'] != md5($user_pass)) {echo "Неверное имя пользователя  или пароль, попробуйте заново.";} else
         {

           $_SESSION['ID'] = $r['id'];
           $_SESSION['Password'] = $r['user_pass'];

           Account::logs($r['id'],$r['point'],$r['balance'],0,0,'Enter to game');
            
            echo "<meta http-equiv=\"refresh\" content=\"0; url=garage.php\">"; exit();
         }
      }
  }

   public static function Exit_User()
   {   
     $_SESSION['ID']=null;
     $_SESSION['Password']=null;
      echo "<meta http-equiv=\"refresh\" content=\"0; url=index.php\">"; exit();
   }
    
   public static function CheckLogin()
   {
     @session_start();
     global $db;
      
     if ((!empty($_SESSION['ID'])) and (!empty($_SESSION['Password'])))
     {
       $result = mysql_query("SELECT * FROM users WHERE id = '".$_SESSION['ID']."'",$db) or die(mysql_error($db));
       $r = mysql_fetch_array($result);
       if($_SESSION['Password'] != $r['user_pass']) {Account::Exit_User(); } else
         {
           mysql_query("UPDATE users SET last_visit ='".@date("Y-m-d H:i:s")."' WHERE id = '".$_SESSION['ID']."'");
         }
     } else {
       echo "<meta http-equiv=\"refresh\" content=\"0; url=index.php\">"; exit();
     }
  }