$.updateMenu = function(link){

  if (link.attr("id") == "provada_button"){
    link = $("li#provada_2011").find("a");
  }

  if (link.hasClass("keepmenu")){
    return true;
  }

  
  $("#submenus li a").removeClass("selected");

  var toplink = link.closest("li.toplink");
  if (toplink.length > 0){
    $("#mainmenu")
     .find(".topselected,.selected")
     .removeClass("topselected selected");
    
    toplink.addClass("topselected");

    // Show the correct submenu ("/bouwvastgoedrecht/")

    var id = link.attr("href").split('/')[1];
    $("#submenus").children().hide();
    $("#submenus").children("#"+id).show();

  } else if (link.hasClass("sublink") ){
    link.addClass("selected");
    var submenu = link.closest(".submenu").show();
    $("#mainmenu > #" + submenu.attr("id")).addClass("topselected");
  } 

  return true;
}