$(document).ready(function() {
  $("#leftnav .level1 .item.current>ul").slideToggle(100);
  $("#leftnav .level1>.item.current img:first").attr("src", "arrowdown.png");
  $("#leftnav .level1>.item").css("cursor","pointer");
  $("#leftnav .level1>.item:has(.level2>.item)>div").each(function(){
   $(this).find("a:first").attr("href","#");
   $(this).toggle(function(){toggleNav($(this))},function(){toggleNav($(this))});
  });
});
function toggleNav(div){
 var open = (div.find("img:first").attr("src") == "arrowleft.png");
 $("#leftnav .level1>.item:has(.level2>.item)>div").next().slideUp(100);
 $("#leftnav .level1>.item:has(.level2>.item)>div").find("img:first").attr("src", "arrowleft.png");
 if (open)
 {
   div.find("img:first").attr("src", "arrowdown.png");
   div.next().stop(true).slideDown(100);
 }
}