public int searchForEmployeeIndex(String firstName, String lastName)
	{
		if (arrayDirty) {
			insertionSort();
		}
		
		final int count = employees.size();
		for (int i = 0; i < count; ++i) {
			final Employee employee = employees.get(i);
			if ( lastName.equalsIgnoreCase(employee.getLastName()) && firstName.equalsIgnoreCase(firstName)) {
				return i;
			}
			
		}
		return -1;
	}