function rollover(name, suffix)
{
  var h;
  h = window.document.images[name].src;
  h = h.substring(0, h.length - 5) + suffix + h.substring(h.length - 4, h.length);
  window.document.images[name].src = h;
}


function markieren(elem)
{
 elem.style.backgroundColor="#CCC000";
}

function zuruecksetzen(elem)
{
//elem.style.backgroundColor="#9CCEff";
elem.style.backgroundColor="";
}