(function() {
    function main() {
        var path = window.location.pathname;
        var site = path.split("/")[1];
        $('#entry a[@href="/'+site+'/"]').addClass('sel');
        $('#nav-main a[@href="'+path+'"]').addClass('sel');
    
        $('select.edu').change(function(){
            var content = $(this).next();
            var link = $(content).next().find('a');
            var cid = $(this).find('option:selected').attr('value');
        
            $.ajax({
              type: "GET",
              url: getCourseUrl,
              dataType: "json",
              data: "cid=" + cid,
              success: function(obj) {
                    content.html(obj['content']);
                    link.attr('href', obj['url']);
              }
            });
            
        });
    }
    $(document).ready(main);
})()