Hvorfor generer rand()% samme tal..

Kode 

#include <iostream>
#include <iomanip>
#include <stdlib.h>
#include <time.h>

using namespace std;

void Generator(unsigned short Antal_Tal, unsigned short Antal_Raekker, unsigned short Top);

int main()
{
    char Aktuelt_Lotto;
    unsigned short Raekker;
    do
    {
        cout <<"Velkommen til Lotto Generatoren ..! " <<endl <<endl
             <<"\t 1. Onsdags Lotto. " <<endl
             <<"\t 2. Lørdags Lotto. " <<endl <<endl;
        cout <<"Tast tallet for aktuelle lotto service .. ! : ";
        cin >>Aktuelt_Lotto;
        cout <<"Hvor mange rækker ønskes ..? : ";
        cin >>Raekker;
        system("cls");

        if (Aktuelt_Lotto == '1')
        {
            unsigned short Tal = 7, Top = 48;
            Generator(Tal, Raekker, Top);
        }
        else if (Aktuelt_Lotto == '2')
        {
            unsigned short Tal = 8, Top =36;
            Generator(Tal, Raekker, Top);
        }

    }while (Aktuelt_Lotto != '1' && Aktuelt_Lotto !='2');



    return 0;
}


void Generator(unsigned short Antal_Tal, unsigned short Antal_Raekker, unsigned short Top)
{

    unsigned short Raekke_Taeller = 1, Tal_Taeller = 1, Tal;
    srand(time(0));
    do
    {
        do
        {
            Tal = rand()%Top +1;
            cout <<setw(4) <<Tal << "  ";
            Tal_Taeller++;

         }while(Tal_Taeller < Antal_Tal);
         cout <<endl;
     Tal_Taeller =1;
     Raekke_Taeller++;

    }while(Raekke_Taeller <= Antal_Raekker);
}