function Sublinks_visible(id){

 if(document.getElementById(id).style.display == 'block') {
  document.getElementById(id).style.display = 'none';
 } else {
  document.getElementById(id).style.display = 'block';
 }

}

function Sublinks_hidden(id){

 if(document.getElementById(id).style.display == 'none') {
  document.getElementById(id).style.display = 'block';
 } else {
  document.getElementById(id).style.display = 'none';
 }

}

function FensterOeffnen(Adresse) {
  MeinFenster = window.open(Adresse, "HV-Mard - AGB", "'width=1000,height=600,status=no, menubar=no, resizable=no, scrollbars=yes, toolbar=no, location=no, directories=no'");
  MeinFenster.focus();
}