protected void doPost(HttpServletRequest req, HttpServletResponse res) 
			throws ServletException, IOException {
		
		HttpSession session = req.getSession();
		
		if(session != null) {
			session.invalidate();
		}
		
		req.setAttribute("msg", "You've been logged out, come back soon !");
		req.setAttribute("link", "login "
				+ "<a href=\"/GAMER/shop?action=login\">here</a>");
		
		getServletContext().getRequestDispatcher("/UserMsg.jsp").forward(req, res);
	}