function switchDISPLAY(id)
{
   ELM = document.getElementById(id);
       
   if (ELM.style.display == "none") {
    ELM.style.display = "block";
   } else {
    ELM.style.display = "none";
   }
 
}

function setDISPLAY(id,zustand)
{
   ELM = document.getElementById(id);
   ELM.style.display = zustand;
}
function setVisibility(id,zustand)
{
	 ELM = document.getElementById(id);
   ELM.style.visibility= zustand;
}

function switchVisibility(id)
{
   ELM = document.getElementById(id);
       
   if (ELM.style.visibility == "hidden") {
    ELM.style.visibility= "visible";
   } else {
    ELM.style.visibility = "hidden";
   }
 
}