function showFields(name) {
  if (document.getElementById) {
    document.getElementById(name).style.visibility = "visible";
    document.getElementById(name).style.display = "inline";
  }
}

function hideFields(name) {
  if (document.getElementById) {
    document.getElementById(name).style.visibility = "hidden";
    document.getElementById(name).style.display = "none";
  }
}

function toggleFields(name) {
  if (document.getElementById) {
    if (document.getElementById(name).style.visibility.toUpperCase() == "HIDDEN" || document.getElementById(name).style.display.toUpperCase() == "NONE") {
      showFields(name);
    } else {
	  hideFields(name);
    }
  }
}