public void insertpre(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		String pages = "../../../errors.jsp";
		try {
			request.setAttribute("allgroup", DAOFactory
					.getIAdmingroupInstance().findAll(""));
			pages = "admin_insert.jsp";
		} catch (Exception e) {
			e.printStackTrace();
		}
		request.getRequestDispatcher(pages).forward(request, response);
	}