function Change(Item)
{
  var Option0 = document.getElementById(Item + "0");
  var Option1 = document.getElementById(Item + "1");
  if (Option0.style.display == "block")
  {
    Option0.style.display = "none";
    Option1.style.display = "block";
  }
  else
  {
    Option0.style.display = "block";
    Option1.style.display = "none";
  }
}