function get_cookie(Name) {
  var search = Name + '=';
  var returnvalue = '';
  if (document.cookie.length > 0) {
    offset = document.cookie.indexOf(search)
    // if cookie exists
    if (offset != -1) {
      offset += search.length
      // set index of beginning of value
      end = document.cookie.indexOf(';', offset);
      // set index of end of cookie value
      if (end == -1) end = document.cookie.length;
      returnvalue=unescape(document.cookie.substring(offset, end))
      }
   }
  return returnvalue;
}

function updateFOCookie() {
  var cookieVal = get_cookie("PD-ID");
  document.cookie = "PD-ID="+cookieVal+"; domain=autodesk.com; path=/";
}