<!--
function toggle(object) {

  if (document.getElementById) {

    if (document.getElementById(object).style.visibility == 'visible')
      document.getElementById(object).style.visibility = 'hidden';
    else
      document.getElementById(object).style.visibility = 'visible';
  }

  else if (document.layers && document.layers[object] != null) {

    if (document.layers[object].visibility == 'visible' ||
        document.layers[object].visibility == 'show' )
      document.layers[object].visibility = 'hidden';
    else
      document.layers[object].visibility = 'visible';
  }

  else if (document.all) {

    if (document.all[object].style.visibility == 'visible')
      document.all[object].style.visibility = 'hidden';
    else
      document.all[object].style.visibility = 'visible';
  }

  return false;
}

function toggleDisplay(object) {

  if (document.getElementById) {

    if (document.getElementById(object).style.display == 'block')
      document.getElementById(object).style.display = 'none';
    else
      document.getElementById(object).style.display = 'block';
  }

  else if (document.layers && document.layers[object] != null) {

    if (document.layers[object].display == 'block' ||
        document.layers[object].display == 'none' )
      document.layers[object].display = 'none';
    else
      document.layers[object].display = 'block';
  }

  else if (document.all) {

    if (document.all[object].style.display == 'block')
      document.all[object].style.display = 'none';
    else
      document.all[object].style.display = 'block';
  }

  return false;
}
// -->