nav-expand.js

function expandNavOnLowResolutions() {
  $("html").click(function(e) {
    var container = $("#nav");
    if (!container.is(e.target) && container.has(e.target).length === 0) {
      $("#navbar-collapse-1").css("display", "none").removeClass("in").attr("aria-expanded", false);
      $("#add-margin-on-nav-expand").stop(true, true).removeClass("hamburger-expanded");
    }
  });

  $("#hamburger").click(function(event) {
    if($("#navbar-collapse-1").hasClass("in")) {
      $("#navbar-collapse-1").fadeOut();
      $("#add-margin-on-nav-expand").stop(true, true).removeClass("hamburger-expanded");
    } else {
      $("#navbar-collapse-1").fadeIn();
      $("#add-margin-on-nav-expand").stop(true, true).addClass("hamburger-expanded");
    }
  });
}