public int availableSupervisorInLocation(string locationName)
{
locationControl = new LocationControl();
employee = new Employee();
employeeDB = new EmployeeDB();
int locationID = locationControl.getEmployeeLocationID(locationName);
employee.setLocationID(locationID);
employeeDB.countSupervisorInLocation(employee);
return(locationControl.getSupervisorNumbers() - employee.getNumberOfEmployee());
}