function toggleListSelectAllOrNone(selectAllOrNoneToggle, namePrefix)
{
  var f = selectAllOrNoneToggle.form;

  for (var i=0; i < f.elements.length; i++)
  {
    var box = f.elements[i];

    if (box.checked != selectAllOrNoneToggle.checked)
    {
      if (box.name.substring(0, namePrefix.length) == namePrefix)
      {
        if (selectAllOrNoneToggle.checked)
        {
          box.checked = true;
        }
        else
        {
          box.checked = false;
        }
      }
    }
  }
}