//  ------------------------------------------------------------
function insertHTML (html, id) {
  if (document.getElementById(id) == null) {alert ("### error: unable to insert '"+html+"' to '"+id+"'");return false;}
  document.getElementById(id).innerHTML = html;
  return true;
}

//  ------------------------------------------------------------
function insertNodeValue (value, id) {
  if (document.getElementById(id) == null) {alert ("### error: unable to insert '"+html+"' to '"+id+"'");return false;}
  document.getElementById(id).firstChild.nodeValue = value;
}

//  ------------------------------------------------------------
function insertValue (value, id) {
//  alert ("insertValue ("+value+", "+id+")");
//  alert (document.getElementById(id));
//  alert (document.getElementById(id).value);
  document.getElementById(id).value = value;
}
//  ------------------------------------------------------------