<!-- // Hide
function toggleDisplay(nIndex)
{
  var mySpan;
  var myArrow;
  for (n = 1; n <= nNodeCount; n++)
  {
    mySpan = eval("span" + n);
    myArrow = eval("arrow" + n);
    if (n != nIndex)
    {
      mySpan.style.display = "none";
      myArrow.src = aBullets[n-1];
    }
  }
  mySpan = eval("span" + nIndex);
  myArrow = eval("arrow" + nIndex);
  if (mySpan.style.display == "block")
  {
    mySpan.style.display = "none";
    myArrow.src = aBullets[nIndex-1];
  }
  else
  {
    mySpan.style.display = "block";
    myArrow.src = aBullets[nIndex-1];
  }
}
-->