istream& operator>>(istream& in, Money& en_money)
{
   string s1;
   string s2;
   double litteral;
   stringstream buffer;
   pair<int,int> ett_par;
   
   if(in.peek()!='\n')
	  in >> s1;
   if(in.peek()!='\n')
	  in >> s2;
   
   if(s1 != "")
   {
	  if(s2 == "")
	  {
		 /*if(en_money.valuta != s2)
			throw Money::monetary_error("Currency mixing in operator"
			,__LINE__);*/
		 
		 buffer << s1;
		 buffer >> litteral;
		 
		 if(litteral < 0)
			throw Money::monetary_error("Negative result in operator"
										,__LINE__);
	  }
	  else if (s2 != "")
	  {
		 /*if(en_money.valuta != s1)
			throw Money::monetary_error("Currency mixing in operator"
			,__LINE__);*/
		 
		 buffer << s2;
		 buffer >> litteral;
		 
		 if(litteral < 0)
			throw Money::monetary_error("Negative result in operator"
										,__LINE__);
			
		 en_money.valuta = s1;
	  }
	  ett_par = double_to_integerpair(litteral);
	  en_money.enheter = ett_par.first;
	  en_money.hundradelar = ett_par.second;
   }
   
   return in;
}