$(document).ready(function() {

  /*
   * Append 'active' class to current active navigation link.
   */

  $(".nav li a").each(function() {
    var hreflink = $(this).attr("href");
    var pathlink = "/" + location.pathname.split("/")[1];

    if ( hreflink.toLowerCase() == pathlink.toLowerCase() ) {
      $(this).parent("li").addClass("selected");
    }
  });

})