// Some globals  
  var IE = (document.all);
  
  // Placeholder for links
  function nothing() { return; }
  
  // Returns object
  function getObject(oid) {
  	if (IE) return document.all(oid);
  	return document.getElementById(oid);
  }
  
  function toggleNav(nid,aexp) {
    if (document.images["plus"+nid] && getObject("navdiv"+nid)) {
      if (document.images["plus"+nid].isActive || (document.images["plus"+nid].isActive == null && aexp)) {
    	document.images["plus"+nid].isActive = false;
      	document.images["plus"+nid].src = "/images/iBulletPlus.gif";
      	getObject("navdiv"+nid).style.display = 'none';
      	saveNav(nid,0);
      }
      else {
      	document.images["plus"+nid].isActive = true;
      	document.images["plus"+nid].src = "/images/iBulletMinus.gif";
      	getObject("navdiv"+nid).style.display = 'inline';
      	saveNav(nid,1);
      }
    }
    return;
  }
  
  function saveNav(nid,yesno) {
    var cDte = new Date();
    var cTime = -cDte.getTime();
    if (yesno) cTime = (24 * 60 * 60 * 1000);
    cDte.setTime(cDte.getTime() + cTime);
    document.cookie = 'navExpanded'+nid+'='+yesno+'; expires='+cDte.toGMTString();
  }