jQuery.fn.focusImg = function() {
    var obj = $(this);
    objName = obj.attr("id");
    obj.children("ul").attr("id", objName + "-fragment");
    var num = (obj.children("ul").children("li").length) - 1;
    var temp_b = new String();
    for (var i = 0; i <= num; i++) {
        temp_b += "<a id=\"" + objName + "-button-" + i + "\" href=\"#" + objName + "-fragment-" + i + "\">" + (i + 1) + "</a>";
        obj.children("ul").children("li").eq(i).attr("id", objName + "-fragment-" + i)
    }
    obj.append("<span id='" + objName + "-button'>" + temp_b + "</span>");
    obj.children("span").children("a").eq(num).addClass("a2");

    obj.children("span").children("a").click(function() {
        obj.children("span").children("a").removeClass("a2");
        $(this).addClass("a2");
        var id = ($(this).attr("id")).replace("button", "fragment");
        $("#" + id).appendTo(obj.children("ul"));
        return false;
    });

    topBoxRun = function() {
        obj.children("ul").children("li").eq(num).slideUp("slow", function() {
            obj.children("span").children("a").removeClass("a2");
            var id = ($(this).prev().attr("id")).replace("fragment", "button");
            $("#" + id).addClass("a2");
            $(this).prependTo(obj.children("ul"));
            $(this).show();
        });
    }

    var t = setInterval(topBoxRun, 5000);
}