function getElementById(id){ 
  var item = null; 

  if (document.getElementById){ 
    item = document.getElementById(id); 
  } else if (document.all){ 
    item = document.all[id]; 
  } else if (document.layers){ 
    item = document.layers[id]; 
  } 

  return item; 
} 

function SpoilerShowOrHide(d1, d2) { 
  if (d1 != ''){ 
      DoDiv(d1); 
  } 

  if (d2 != ''){ 
      DoDiv(d2); 
  } 
} 

function ShowOrHide(d1) { 
      if (d1 != '') DoDiv(d1); 
}; 


function DoDiv(id) { 
      var item = null; 
      if (document.getElementById) { 
        item = document.getElementById(id); 
      } else if (document.all){ 
        item = document.all[id]; 
      } else if (document.layers){ 
        item = document.layers[id]; 
      } 
      if (!item) { 
      } 
      else if (item.style) { 
        if (item.style.display == "none"){ item.style.display = ""; } 
        else {item.style.display = "none"; } 
      }else{ item.visibility = "show"; } 
};