TopJUI左侧菜单为什么只能显示二级菜单

$.get(
            url, {"levelId": "2"}, // 获取第一层目录
            function (data) {
                if (data == "0") {
                    window.location = "/Account";
                }
				console.log(data);
                $.each(data, function (i, e) {// 循环创建手风琴的项
                    var pid = e.pid;
                    var isSelected = i == 0 ? true : false;
                    $('#RightAccordion').iAccordion('add', {
                        fit: false,
                        title: e.text,
                        content: "<ul id='tree" + e.id + "' ></ul>",
                        border: false,
                        selected: isSelected,
                        iconCls: e.iconCls
                    });
                    $.parser.parse();
                    $.get("./json/menu/menu_" + e.id + ".json", function (data) {// 循环创建树的项
					    console.log(data);
						console.log(e.id);
                        $("#tree" + e.id).tree({
                            data: data,
                            lines: false,
                            animate: true,
                            onBeforeExpand: function (node, param) {
                                $("#tree" + e.id).tree('options').url = "./json/menu/menu_" + node.id + ".json";
                            },
                            onClick: function (node) {
                                if (node.url) {
                                    
                                    addTab(node);
                                } else {
                                    if (node.state == "closed") {
										console.log(node);
                                        $("#tree" + e.id).tree('expand', node.target);
                                    } else if (node.state == 'open') {
                                        $("#tree" + e.id).tree('collapse', node.target);
                                    }
                                }
                            }
                        });
                    }, 'json');
                });
            }, "json"
        );
    }