window.onload=rollup;
function rollout(objMenuitem, objEvent){
 var iKeyCode;
 if (objEvent && objEvent.type == 'keypress'){
  if (objEvent.keyCode) iKeyCode = objEvent.keyCode;
  else if (objEvent.which) iKeyCode = objEvent.which;
  if (iKeyCode != 13 && iKeyCode != 32) return true;
 }
 if (objMenuitem.nextSibling.style.display == 'block') var strDisplay = 'none'
 else
  var strDisplay = 'block';
  var objMenu = document.getElementById('nav');
  var objNested = objMenu.getElementsByTagName('ul');
 for (var i=0; i<objNested.length; i++)
 if (objNested[i].style.display == 'block')
  objNested[i].style.display = 'none';
  objMenuitem.nextSibling.style.display = strDisplay;
 while (objMenuitem.parentNode.parentNode.id != 'nav'){
  objMenuitem = objMenuitem.parentNode.parentNode;
  objMenuitem.style.display = 'block';
 }
 return false;
}

function rollup(){
 var bRollup, objLinks, objNode, objAnchor;
 if (document.getElementById && document.createElement){
  var strLocation = window.location;
  var objMenu = document.getElementById('nav');
  var objNested = objMenu.getElementsByTagName('ul');
  for (var i=0; i<objNested.length; i++){
   bRollup = true;
   objLinks = objNested[i].getElementsByTagName('a');
   for (var j=0; j<objLinks.length; j++){
    if (objLinks[j].href == strLocation){
     bRollup = false;
     objNode = objLinks[j];
     strContent = objNode.firstChild.data;
     var objCurrentPage = document.createElement('strong');
     objCurrentPage.appendChild(document.createTextNode(strContent));
     objNode.parentNode.replaceChild(objCurrentPage, objNode);
     objCurrentPage.id = 'KeepOpen';
    }
   }
   if (bRollup == true) objNested[i].style.display = 'none';
   else
    objNested[i].style.display = 'block';
    objNode = objNested[i].parentNode;
    strContent = objNode.firstChild.data;
    objAnchor = document.createElement('a');
    objAnchor.href = '#';
    objAnchor.onclick = function(event){return rollout(this, event);}
    objAnchor.onkeypress = function(event){return rollout(this, event);}
    objAnchor.appendChild(document.createTextNode(strContent));
    objNode.replaceChild(objAnchor, objNode.firstChild);
  }
  if (document.getElementById('KeepOpen')){
   var objKeepOpen = document.getElementById('KeepOpen');
   while (objKeepOpen.parentNode.id != 'nav'){
    objKeepOpen = objKeepOpen.parentNode;
    objKeepOpen.style.display = 'block';
   }
  }
 }
}