c++ help please?

Hey, i am having some trouble with this c++ code i am working on.  the switch is not working right and it just loops with out accepting input. any help is appriciated.

#include <iostream.h>
#include <iomanip.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <math.h>

void Menu(void);
void TAMSaleY(void);
void TAMSaleQ(void);
void MEASales(void);
void GLSales(void);
void AnyKey(void);

char *Month[12]={"January","Febuary","March","April","May","June","July","August","September","October","November","December"};
int Msale[12] = {46987,43768,38987,36181,35129,40245,52156,49546,51120,47345,45675,53769},X;

void main()
{    do
    {    Menu();
        switch(X)
        {    case'1':
                TAMSaleY();
                break;
            case'2':
                TAMSaleQ();
                break;
            case'3':
                MEASales();
                break;
            case'4':
                GLSales();
                break;
            case'5':
                break;
                X=5;
            default:
                cout << "\nEnter 1,2,3,4 or 5." << endl;
                AnyKey();
        }
    }while(X != '5');

} // end of main()

void AnyKey(void)
{    system("pause");
    system("cls");
}

void Menu(void)
{    system("cls");
    cout << "Enter a selection:\n\n1)Total and Average Monthly Sales(Annual)\n2)Total and Average Monthly Sales(Quaterly)\n3)Months Exceeding Average Monthly Sales\n4)Highest and Lowest Performing Month\n5)Exit\n";
}

Use Haskell.