动态二级分类

if (typeof (vikecn_class) != undefined) {
            $("#selcl1").html("<option value='0'>选择大类</option>");
            $("#selcl2").html("<option value='0'>选择小类</option>");

            var h_c1 = $("#h_c1").val();
            var h_c2 = $("#h_c2").val();

            $.each(vikecn_class, function (i, item) {
                $("#selcl1").append("<option value='" + item.id + "' " + ((h_c1 == item.id) ? "selected" : "") + " >" + item.name + "</option>");

                if (item.id == h_c1) {
                    $.each(item.children, function (i, subitem) {
                        $("#selcl2").append("<option value='" + subitem.id + "' " + ((h_c2 == subitem.id) ? "selected" : "") + ">" + subitem.name + "</option>");
                    });
                }
            });

            $("#selcl1").change(function () {
                var index = $('option:selected', '#selcl1').index();
                $("#selcl2").html("<option value='0'>选择小类</option>");
                if (index > 0) {
                    $.each(vikecn_class[index - 1].children, function (i, item) {
                        $("#selcl2").append("<option value='" + item.id + "'>" + item.name + "</option>");
                    });
                }
            });

            $(".rowc1").each(function () {
                var id = $(this).attr("data");
                var subid = $(this).next().attr("data");
                var rowc1 = $(this);
                var rowc2 = $(this).next();
                $.each(vikecn_class, function (i, item) {
                    if (item.id == id)
                    {
                        rowc1.html(item.name);
                        $.each(item.children, function (i, subitem) {
                            if (subitem.id == subid)
                            {
                                rowc2.html(subitem.name);
                                return false;
                            }
                        });
                        return false;
                    }
                });
            });
        }