// JavaScript Document
function predaj(MyForm)
{
  var EUR = MyForm.EUR.value;
  var KURZ = MyForm.Kpredaj.value;
    MyForm.SKK.value = Math.round((KURZ * EUR)*100)/100;
}
function nakup(MyForm)
{
  var SKK = MyForm.SKK.value; 
  var KURZ = MyForm.Knakup.value;
    MyForm.EUR.value = Math.round((SKK / KURZ)*100)/100;
}
function nakuppiv(MyForm)
{
  var SKK = MyForm.SKK.value; 
  var PIV = MyForm.nakup.value;
    MyForm.PIVO.value = Math.floor (SKK / PIV) ;
}