Thread: homework code/looking for suggestions

Hi I'm a newbie.
Have written as a homework this code (see hereafter) which converts a weight from pounds to kilogams and viceversa.
Can you look at it/test it and give me your ideas for some improvements. I would appreciate your comments on the good and bad aspects of my homework.
Thanks
Michael

Code:

// ///////////////////////////////////////////////////////////
//converts from pounds to kg
#include <iostream>
using namespace std;
#include <cmath>
int choice;
void PoundsToKgFunction();
void KgToPoundsFunction();
double Pounds;
double Ounces;
char ans='Y';
//=====
void getWeightInPounds(double& WPounds, double& WOunces);
//reads the weight in pounds and ounces

void ConvertPoToKg(double& variable1,double& variable2);
//converts the weight from pounds and ounces to kg and grams

void showResultsPotoKg(double output1, double output2);
//prints the results of the conversion
//======
//=====================================================================

double WKg,WGr,temp1;

void GetWeightKg(double& Kg, double& grams);
//Gets the weight in Kilograms and Grams

void ConvertWeightToPounds(double& variable1, double& variable2);
//Converts the Weight into Pounds and Ounces

void ShowResults(double output1, double output2);
//Prints the results of the conversion
//=======================================================================

int main()
{
cout<<"This Program allows you to convert Kg to Pounds and viceversa at your choice. \n";
cout<<endl;
while(ans=='Y'||ans=='y')
{

cout<<"If you want to convert from pounds to kg enter '1'\n"
<<"If you want to convert from kg to pounds enter '2'\n";
cin>>choice;
if(choice==1)
PoundsToKgFunction();
else
KgToPoundsFunction();

cout<<"Do you want to continue (Y/N)? ";
cin>>ans;
}
return 0;
}

void PoundsToKgFunction()
{

getWeightInPounds(Pounds,Ounces);
ConvertPoToKg(Pounds,Ounces);
showResultsPotoKg(Pounds,Ounces);

}

//======
void getWeightInPounds(double& WPounds, double& WOunces)
{
cout<<"Enter Weight in Pounds and Ounces (separated by a blank): "<<endl;
cin>>WPounds;
cin>>WOunces;
}
void ConvertPoToKg(double& variable1,double& variable2)
//temp1 is the weight in Pounds
{
double temp1;
temp1=variable1+(variable2/16);
variable1=floor(temp1/2.2046);
variable2=((temp1/2.2046)-variable1)*1000;
}

void showResultsPotoKg(double output1, double output2)
{
cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout.precision(1);
cout<<"The weight is: "<<output1<<" Kg "<<"and "<<output2<<" Grams"<<endl;
}

void KgToPoundsFunction()
{///////////////////////////////////////////////////////////
//converts from kg to pounds
GetWeightKg(WKg,WGr);
ConvertWeightToPounds(WKg,WGr);
ShowResults(WKg,WGr);
}

void GetWeightKg(double& Kg, double& grams)
{
cout<<"Enter Weight in Kilograms and Grams separated by a blank: ";
cin>>Kg;
cin>>grams;
}

void ConvertWeightToPounds(double& variable1, double& variable2)
{
temp1=variable1+(variable2/1000);


variable1=floor(temp1*2.2046);
variable2=(temp1*2.2046-variable1)*16;
}

void ShowResults(double output1, double output2)
{
cout<<"This weight is equal to: "<<output1<<" Pounds and "<<output2<<" Ounces "<<endl;
}

Thanks for your comments. Much appreciated.
Michael.

How can I overload the functions if they have the same number of arguments?
How do I go about making the functions universal?
Thanks
Michael