$(document).ready(function() {

    $("#nav a").each(function() {

        var hreflink = $(this).attr("href").toLowerCase();
        hreflink = hreflink.split("/");

        var loc = location.href.toLowerCase();

        if (loc.indexOf("index.aspx") != -1) { //an index page - make the main nav active
            if (loc.indexOf(hreflink[1]) != -1 && loc.indexOf(hreflink[2]) != -1)
                $(this).addClass("active");
        }
        else {
            if (loc.indexOf(hreflink[1]) != -1) //a sub page - make the main nav active
            {
                $("#nav a[@href*=/" + hreflink[1] + "/index.aspx]").addClass("active");
            }
        }
        if (loc.indexOf("contact.aspx") != -1)
            $("#nav a[@href*=contact.aspx]").addClass("active");

        $("#nav a:first").removeClass("active"); //dont match index.aspx to <sub>/index.aspx
    });
});