for (var i = 0; i <= menu.Properties.length; i++) {
    var ele = menu.Properties[i];
    var str = window.location.pathname;
    var start = str.lastIndexOf("/")
    if (ele) {
        if (ele.Page.substring(0, 4) == str.substring(start + 1, start + 5)) {
            document.write("<div class='menu_arrow")
            if (ele.Item == "about") {
                document.write("1");
            }
            document.write("'><img src='images/arrow.gif' width='45' height='14' /></div>");
        }
        document.write("<div class='" + menu.sclass + "'>" +
        "<a href='" + ele.Page + "' target='" + ele.Target + "'>" + ele.Item + "</a></div>");
    }
}