function MenueAuf(Men)
{
  if(document.getElementById)
  {
    document.getElementById(Men).style.visibility="visible";
  }

  else if(document.all && !document.getElementById)
  {
    document.all[Men].style.visibility="visible";
  }
}

function MenueZu(Men)
{
  if(document.getElementById)
  {
    document.getElementById(Men).style.visibility="hidden";
  }

  else if(document.all && !document.getElementById)
  {
    document.all[Men].style.visibility="hidden";
  }
}


var of = 0;

function openwin(was,b,h) {

//Ist Fenster offen?
if (of == 1){
   pop.close();
   of=0;
}
//Öffne Fenster mit Inhalt
 pop = window.open(was,"PDF","toolbar=0,location=0,directories=0,status=0,menuebar=0,scrollbars=yes,resizable=0,width="+b+",height="+h+"");
 of=1;
 pop.moveTo(20,80);
}

var of = 0;

function PopUp(was,b,h) {

//Ist Fenster offen?
if (of == 1){
   pop.close();
   of=0;
}
//Öffne Fenster mit Inhalt
 pop = window.open(was,"maxGallery","toolbar=0,location=0,directories=0,status=0,menuebar=0,scrollbars=yes,resizable=0,width="+b+",height="+h+"");
 of=1;
 pop.moveTo(0,0);
}