public ArrayList<Attendee> getAttendanceListByID(int attendanceListID) {
   AttendanceListModel alm = new AttendanceListModel();
   return alm.getRegisterByID(attendanceListID);
 }
 public ArrayList<ShouldAttend> getShouldAttend(int attID) {
   AttendanceListModel alm = new AttendanceListModel();
   return alm.getWhoShouldAttend(attID);
 }