function FensterOeffnen (Adresse,b,h) {
  MeinFenster = window.open(Adresse, "Fenster", "width="+b+",height="+h+",left=100,top=200");
  MeinFenster.focus();
}

function toggleDisplay(divId) {
 var div = document.getElementById(divId).style.visibility;
 var div2 = document.getElementById(divId+"_content").style.visibility;
  var div3 = document.getElementById("tv_oben").style.visibility;
var div4 = document.getElementById("body2").style.overflow;
if(div=="hidden")
document.getElementById(divId).style.visibility="visible";
else
document.getElementById(divId).style.visibility="hidden";

/* if(div2=="none")
document.getElementById(divId+"_content").style.display="table ";
else
document.getElementById(divId+"_content").style.display="none"; */

if(div2=="hidden")
document.getElementById(divId+"_content").style.visibility="visible";
else
document.getElementById(divId+"_content").style.visibility="hidden";

if(div3=="hidden")
document.getElementById("tv_oben").style.visibility="visible";
else
document.getElementById("tv_oben").style.visibility="hidden";

if(div4=="hidden")
document.getElementById("body2").style.overflow="auto";
else
document.getElementById("body2").style.overflow="hidden";
}