So, I have a function that at first was supposed to work with my navbar. I click in some link and it load a page trough AJAX inside a #content div. But  what if I have a link inside that div? 
I mean, AJAX call a page that contains a link that is supposed to word with AJAX too, but that works only when I access page directly (if the content inside the #content div wasn't called by AJAX), otherwise it runs like a normal href link.
My AJAX function:
              $(function() {
                $('a').click(function(e) {
                    $("#loading").show();
                    $("#content").animate({ opacity: 0 });
                    var href = $(this).attr("href");
                    ajaxtitle = $(this).attr("ajaxtitle");
                    //this.a = ajaxtitle;
                    loadContent(href);
                    // HISTORY.PUSHSTATE
                    window.history.pushState('', ajaxtitle, href);
                    document.title = ajaxtitle;
                    e.preventDefault();
                });
                //MAKE BACK/FORWARD WORKS
                window.onpopstate = function(event) {
                    $("#loading").show();
                    //console.log("pathname: "+location.pathname);
                    loadContent(location.pathname);
                };
            })
        //AJAX ITSELF
        function loadContent(url){
            $.ajax({
                url: url,
                type: 'GET',
                error: function(){
                    alert("O");
                },
                success:
                function(data){
                    $('#content').html(data);
                    $("#loading").hide();
                    $("#content").animate({ opacity: 1 })
                }
                });
                // MAKE NAVBAR ACTIVE
                $('li').removeClass('active');
                $('a[href="'+url+'"]').parent().addClass('active');
                //window.history.pushState('', ajaxtitle, href);
            };
And an example of my links, just to complement:
<a href="projects" ajaxtitle="Projects">PROJECTS</a>
What I have to do to have my AJAX-called links working?
 
    