function _wpwmHideShow(id1, id2) {
  var el = document.getElementById(id1);
  if(el != null) {
    el.style.display = "none";
  }

  var el = document.getElementById(id2);
  if(el != null) {
    el.style.display = "";
  }

  return false;
}

function disableTestMode(id, _do) {
  var el = document.getElementById(id);
  if(el != null) {
    el.disabled = _do;
  }
}