<!-- descrizione

toggleDescrizione = function() {
  if (obj.style.display == 'none') {
    Effect.BlindDown(obj.id, {duration: 0.2});
    setButtonStatus(btn, 'off');
  } else {
    Effect.BlindUp(obj.id, {duration: 0.2});
    setButtonStatus(btn, 'on');
  }
}

setButtonStatus = function(btn, status) {
  if (status == 'on') {
    btn.innerHTML = on_text;
    btn.className = on_class;
  } else {
    btn.innerHTML = off_text;
    btn.className = off_class;
  }
}

// -->