function MenueAuf(Men)
{
  if(document.getElementById)
  {
    document.getElementById(Men).style.visibility="visible";
  }
  else if(document.layers)
  {
	document.layers[Men].visibility="show";
  }
  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.layers)
  {
	document.layers[Men].visibility="hide";
  }
  else if(document.all && !document.getElementById)
  {
    document.all[Men].style.visibility="hidden";
  }
}

function hover_an(v_id)
{
document.getElementById(v_id).style.color="#FF9F00";
}

function hover_aus(v_id)
{
document.getElementById(v_id).style.color="#FFFFFF";
}