function drawChart(rows)
{
    // Create the data table.
    var data = new google.visualization.DataTable();
    data.addColumn('string', 'Answers');
    data.addColumn('number', 'Number');
    data.addRows(rows);

    // Set chart options
    var options =
    {
        'title'             :'Do you Like my smile?',
        'colors'            :['#f25a5a','#5aa5f2'],
        'fontName'          :'Verdana',
        'backgroundColor'   :'#e7e7e7',
        'chartArea'         :{left:0,top:10,width:"400",height:"400"},
        'is3D'              : true,
    };

    var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
    chart.draw(data, options);
}