public static string taskerLogon(string email, string password)
        {
            UserRecord ur = new UserRecord();

            ur = (UserRecord)ur.selectOb("WHERE email='" + email + "' AND password = '******'");
            if (ur == null)
            {
                return("Error: Name or Passwor is incorrect");
            }
            return(ur.userID);
        }
        public static string requesterLogon(string email, string password)
        {
            UserRecord ur = new UserRecord();

            ur = (UserRecord)ur.selectOb("WHERE email='" + email + "' AND password = '******'");
            if (ur == null)
            {
                return("Error: Name or Passwor is incorrect");
            }
            if (ur.isRequester != "True")
            {
                return("Error: User not registered for this application.");
            }
            return(ur.userID);
        }
        public static string requesterRegistration(string email, string password)
        {
            UserRecord ur = new UserRecord();

            ur = (UserRecord)ur.selectOb("WHERE email='" + email + "'");
            if (ur != null)
            {
                return("Error: Email already in use.");
            }
            ur             = new UserRecord();
            ur.email       = email;
            ur.password    = password;
            ur.isRequester = "True";

            ur.userID = DateTime.Now.Ticks.ToString();
            ur.insertOb();
            return(ur.userID);
        }