@RequestMapping(value = "/sign_in")
	public String custVerification(Model m,HttpServletRequest request, HttpServletResponse response,HttpSession session)
	{
		String username = request.getParameter("custID");
		System.out.println("Customer user name : "+username);
		String password = request.getParameter("password");
		//verify if customer exists already in database
		String result = custDao.verifyCust(username,password);
		
		if(result.equals("user does not exist"))
		{
			System.out.println("Prompt customer to sign up");
			return "home";
			
			
		}else
			if(result.equals("user exist"))
			{
				System.out.println("Sign In succsessful");
				session.setAttribute("cust_signedin", username);
				return "home";
			}
			else
				if(result.equals("invalid password"))
				{
					System.out.println("password invalid");
				}	return "home";
	}