ld(chartMain);
                    var chart = echarts.init(chartMain);
                    chart.setOption(option);

                    if (!noDataZoom) {
                        var controller = document.createElement('div');
                        controller.style.cssText = 'position: absolute; right: 10px; top: 10px;';
                        main.appendChild(controller);
                        controller.innerHTML = [
                            '<button>Add DataZoom</button>',
                     