r() {
    var ln = $('.structure > .nav-holder > .left-nav');
    $('.nav-shield').addClass("shown");
    ln.addClass("shown").removeClass("hidden").css({left: "-100%"}).css({left: -ln.outerWidth()}).animate({left: 0}, function() {
      ln.removeClass("in-transition");
    });
    $(window).trigger('resize');
  }
  $('.sidebar-toggle, .nav-shield').off('click').on('click', function() {
    var ln = $('.structure > .nav-holder > .left-nav');
    if (ln.is(":visible") || $('.nav-shield').is(".shown")) {
    