easyui window窗口 不垂直居中

                $('#hotelDetailWrap').window({
                    width: 1040,
                    height: 160,
                    collapsible: false,
                    minimizable: false,
                    maximizable: false,
                    title: rowSelected.ExpenseTypeName,
                    modal: true,
                    onBeforeOpen: function () {
                        $('#hotelDetailWrap').window('vcenter');
                    },
                    onBeforeClose: function () {
                        $('body').removeClass('modal-open');
                    }
                });