z)'},
    isStacked: stacked,
    legend: {position: 'top'},
    vAxis: {title: units},
  };

  var elem = document.createElement('DIV');
  elem.style = 'width:100%;height:500px';
  document.body.appendChild(elem);
  var chart = new google.visualization.AreaChart(elem);
  chart.draw(data, options);
}

/**
 * Displays all charts.
 *
 * Invoked by the results script. JSONP is used to avoid security
 * restrictions on XHRs for file:// URLs.
 */
function display(hz, results, units) {
  var combine = getQuerystr