function hide(id)
{
  if (document.layers)
  {
    if (document.layers[id])
      document.layers[id].visibility = "hidden";
  }
  else if (document.all)
    document.all[id].style.visibility = "hidden";
  else if (document.getElementById)
    document.getElementById(id).style.visibility = "hidden";
}

function show(id)
{
  if (document.layers)
  {
    if (document.layers[id])
      document.layers[id].visibility = "visible";
  }
  else if (document.all)
    document.all[id].style.visibility = "visible";
  else if (document.getElementById)
    document.getElementById(id).style.visibility = "visible";
}
function wechsel(inout)
{
 if (inout=="swo")
   show("swo1");
 else
   hide("swo1");
}

//---------------------------

function wechselppt(inout)
{
 if (inout=="ppt")
   show("ppt");
 else
   hide("ppt");
}

//--------------------------------

function wechsel1(inout)
{
 if (inout=="kds")
   show("kds");
 else
   hide("kds");
}

//-----------------------------

function wechselbd(inout)
{
 if (inout=="bd")
   show("bd");
 else
   hide("bd");
}

//------------------------------

function wechselts(inout)
{
 if (inout=="ts")
   show("ts");
 else
   hide("ts");
}

//-------------------------------------

function wechsellb(inout)
{
 if (inout=="lb")
   show("lb");
 else
   hide("lb");
}

//-----------------

function wechseldam(inout)
{
 if (inout=="dam")
   show("dam");
 else
   hide("dam");
}

//-----------------------

function wechselbns(inout)
{
 if (inout=="bns")
   show("bns");
 else
   hide("bns");
}
//-----------------------------
function wechselchr(inout)
{
 if (inout=="chr")
   show("chr");
 else
   hide("chr");
}
//-----------------------------
function wechselpatan(inout)
{
 if (inout=="patan")
   show("patan");
 else
   hide("patan");
}
//-----------------------------
function wechselbhaktapur(inout)
{
 if (inout=="bhaktapur")
   show("bhaktapur");
 else
   hide("bhaktapur");
}