像插件不。

        (function ($) {
            $.extend({
                BE: function (opt) {
                    var def = {
                        id: null,
                        type: null,
                        fun: null
                    }
                    $.extend({}, opt, def);
                    $(document).delegate(opt.id, opt.type, opt.fun);
                }
            });
        })(jQuery);
        $(function () {
            $.BE({
                id: "#hbgk_hyfn_flbox dd",
                type: "mouseenter",
                fun: function (e) {
                    $("#hbgk_hyfn_flbox dd").removeClass("current");
                    $(this).addClass("current");
                    $(".hbgk_hyfa_box").hide().eq($(this).index()).show();
                }
            });
        })