window.onload = function showActiveMenuItem()
{
  var Navigation = document.getElementById("nav");
  var ListItems = Navigation.getElementsByTagName("li");
  var Title = document.title;

  for(var i=0; i < ListItems.length; i++)
  {
    if (ListItems[i].className == "top")
    {
      var ButtonText = ListItems[i].firstChild.firstChild.firstChild.data;
      if (ButtonText == Title.substr(9, ButtonText.length))
      {
        ListItems[i].firstChild.id = "selected";
        break;
      }
    }
  }
}