http://monumenta.gov.br/assets/js/page-945660553-1649785341.js

1$(function(){
2    function setActiveMenu(){
3        var pageUrl = document.location.origin + document.location.pathname,
4            pageUrlWithHash = pageUrl + document.location.hash,
5            $el = null;
6
7        $('#nav-da-pagina a').each(function(){
8            var href = $(this).attr('href');
9            if(pageUrl.substr(-href.length) === href || pageUrlWithHash.substr(-href.length) === href){
10                $el = $(this);
11            }
12        });
13        
14        if($el){
15            $('#nav-da-pagina a').removeClass('active');
16            $el.addClass('active');
17        }
18    }
19    
20    setActiveMenu();
21    
22    $(window).on('hashchange', setActiveMenu);
23    
24    document.title = $('.main-content h1:first').text();
25});