// very simple callback method for linked list's print list method's use
void PrintCallback( void ) { cout << key.getKey() << '\t' << name << endl; }
int getKey( void ) { return key.getKey(); }
bool operator <=( int rhs ) { return key.getKey() <= rhs; }
bool operator <( int rhs ) { return key.getKey() < rhs; }
bool operator >=( int rhs ) { return key.getKey() >= rhs; }
// also, since the key is an int, define operators on int keys
bool operator >( int rhs ) { return key.getKey() > rhs; }