function getPageName() {
    var splitter = document.location.href.toLowerCase().split("?");

    if (splitter[0].substr(-1) === "/")
        return "default"; // hack for when no page name appears in url string

    var splitter2 = splitter[(splitter.length - 1)].split("/");
    var splitter3 = splitter2[(splitter2.length - 1)].split(".");
    return splitter3[0];
}

window.addEvent('domready', function () {
    var page = getPageName();

    var hash = new Hash({
        home_opt: "default",
        singletrip_opt: "one-trip-travel-insurance",
        annual_opt: "annual-travel-insurance",
        winter_opt: "winter-sports-travel-insurance",
        over75_opt: "over-69-travel-insurance"
    });

    hash.each(function (value, key) {
        if (value == page)
        { $(key).className = 'on'; }
        else
        { $(key).className = 'off'; }
    });
});