function setCard(nr)
{
  if (nr<1)
  {
    document.getElementById("card").src="fileadmin/kgt/templates/img/karte.gif";
  }
  else
  {
    document.getElementById("card").src="fileadmin/kgt/templates/img/karte-over"+nr+".gif";
  }
}

function updCard() 
{
  nr = document.form_buchung.region1.selectedIndex;
   if (nr<1)
  {
    document.getElementById("card").src="fileadmin/kgt/templates/img/karte.gif";
  }
  else
  {
    document.getElementById("card").src="fileadmin/kgt/templates/img/karte-over"+nr+".gif";
  }
}