void displayPeople(vector<Person> &db, int start, int end)
{
    for(int i=start, i<end; i++)
    {
        cout << "Förnamn: " << db[i].fNamn << " Efternamn: " << db[i].eNamn << endl;
    }
}

void displayDatabase(vector<Person> &db)
{
    const int increment = 20;
    int start = 0;
    int end = increment;
    char keypress;

    if(db.size() < end)
    {
        displayPeople(db, start, db.size());
        return;
    }

    do
    {
        if(end > db.size())
        {
            displayPeople(db, start, start - db.size());
            break;
        }

        displayPeople(db, start, end);
        start += increment;
        end += increment;

        cout << "Vill du se nästa sida?" << endl;
        cin >> keypress;
        cin.get();

    } while ( keypress == 'y' )
}