colored output

From: Costache (none_at_none.org)
Date: 11/15/04 

Date: Mon, 15 Nov 2004 11:54:31 +0100

Following question:
if you want a simple output not as a standard, but as colored text, how to
apply?
An example:

#include <iostream.h>

main(void)
{
int a,b;
cout<<"a& b";
cin>>a>>b;
cout<<a<<" "<<b<<endl;
}

This source code makes a standard output (white).
If the strings wanted to be green or red for example, what must I change?
I would be glad to get an answer.