$(document).ready(function() {
$('#mainNav').CurrentNavItem({concat:true});
    $('#secundaryNav').CurrentNavItem();
});

/* @ SetupCurrentNavItem
   ==================================================================== */
$.fn.CurrentNavItem = function(options) {

    var defaults = {
        cssClass: 'current',
        concat: false
    };
    var options = $.extend(defaults, options);

    var pathname = window.location.pathname;
    var pagename = pathname.substr(pathname.lastIndexOf("/") + 1);

    return this.each(function() {
        $("a", $(this)).each(function() {
            if ($(this).attr("href") == pagename) {
                if (!options.concat) {
                    $(this).addClass(options.cssClass);
                }
                else {
                    var currentClass = $(this).attr('class');
                    var selectedClass = currentClass + "_" + options.cssClass;
                    $(this).attr('class', currentClass + " " + selectedClass);
                }
            }
        });
    });

}