<!--
  function swapDisplay() {     
    // Make sure a child element exists
    var child = event.srcElement.getAttribute("child");
    if (null!=child) {
      var el = document.all[child]
      if (null!=el)
        el.style.display = ""==el.style.display ? "block" : ""
    }
  }
  document.onclick = swapDisplay;
// -->