Draw pie charts

gistfile1.txt

// Draw pie charts
var charts = [];

function createPie(statsjson, type, div, title) {
            if(document.getElementById(div)){
            data = createDataArray(statsjson, type, title, 'reg');
            if(data.getNumberOfRows() > maxResults){
            data.removeRows(maxResults, 999999)
            }

            var chart = new google.visualization.PieChart( document.getElementById(div) ) ; 
            chart.draw(data, {width: '100%', height: 300, is3D: true, backgroundColor: 'transparent', title: title, legendTextStyle: {fontSize: 10}});
            }
            charts.push(chart);

            // Add our selection handler.
            google.visualization.events.addListener(chart, 'select', function() {
    var selection = chart.getSelection();
    var message = '';
    for (var i = 0; i < selection.length; i++) {
      var item = selection[i];
      if (item.row != null && item.column != null) {
        var str = data.getFormattedValue(item.row, item.column);
        message += '{row:' + item.row + ',column:' + item.column + '} = ' + str + '\n';
      } else if (item.row != null) {
        var str = data.getFormattedValue(item.row, 0);
        message += '{row:' + item.row + ', column:none}; value (col 0) = ' + str + '\n';
      } else if (item.column != null) {
        var str = data.getFormattedValue(0, item.column);
        message += '{row:none, column:' + item.column + '}; value (row 0) = ' + str + '\n';
      }
    }
    if (message == '') {
      message = 'nothing';
    }
    console.log('You selected ' + message);
            });
}