function changeIt(the_div,the_change)
{
  var the_style = getStyleObject(the_div);
  if (the_style != false)
  {
    the_style.display = the_change;
  }
}

function hideIt()
{
  changeIt("Fr1n1","none");
  changeIt("Fr1n2","none");
  changeIt("Fr1n3","none");
  changeIt("Fr1n4","none");
  changeIt("Fr1n5","none");
  changeIt("Fr1n6","none");
  changeIt("Fr1n7","none");
  changeIt("Fr2n1","none");
  changeIt("Fr2n2","none");
  changeIt("Fr2n3","none");
  changeIt("Fr2n4","none");
  changeIt("Fr2n5","none");
  changeIt("Fr2n6","none");
  changeIt("Fr2n7","none");
  changeIt("Fr3n1","none");
  changeIt("Fr3n2","none");
  changeIt("Fr3n3","none");
  changeIt("Fr3n4","none");
  changeIt("Fr3n5","none");
  changeIt("Fr3n6","none");
  changeIt("Fr3n7","none");
  changeIt("Fr4n1","none");
  changeIt("Fr4n2","none");
  changeIt("Fr4n3","none");
  changeIt("Fr4n4","none");
  changeIt("Fr4n5","none");
  changeIt("Fr4n6","none");
  changeIt("Fr4n7","none");
  changeIt("Fr4n8","none");
}

function getStyleObject(objectId) {
  if (document.getElementById && document.getElementById(objectId)) {
    return document.getElementById(objectId).style;
  } else if (document.all && document.all(objectId)) {
    return document.all(objectId).style;
  } else {
    return false;
  }
}