Active navigation with jQuery - can't apply a default class to anchor

Question

I am currently trying to make a navigation-menu where an active-class is applied to the anchors whose href attributes that match the c

Answer 1

This should do want you want: mark the matching link, and failing that, mark your default one.

function markActiveLink() {

    //Look through all the links in the sidebar
   $("div#sidebar a").filter(function() {

      //Take the current URL and split it into chunks at each slash
      var currentURL = window.location.toString().split("/");

      //return true if the bit after the last slash is the current page name
      return $(this).attr("href") == currentURL[currentURL.length-1];

    //when the filter function is done, you're left with the links that match.
    }).addClass("active");

   //Afterwards, look back through the links. If none of them were marked,
   //mark your default one.
   if($("div#sidebar a").hasClass("active") == false) {
      $("div#sidebar h2:nth-child(2) a").addClass("active");
    }
 }

markActiveLink();

Also, I found an official tutorial on this on the jQuery Docs site - scroll to the bottom to see the jQuery code. It's tighter than mine, although it's not tailored to your situation.