Alexey

$(document).on('click', '.add_btn', function() { /* as before */ });

$(document).on('click', '.trash_btn', function() { /* as before */ });

$('#jqChart').bind('dataPointLabelCreating', function (event, data) {
                data.text = data.context.dataItem[0];
            });


            $('#jqChart').jqChart({
                legend: { visible: false },
                animation: { duration: 1 },
                series: [
                    {
                        type: 'pie',
                        fillStyles: ['#418CF0', '#FCB441', '#E0400A', '#056492', '#BFBFBF'],
                        labels: {
                            stringFormat: '%s',
                            valueType: 'dataValue',
                            font: '15px sans-serif',
                            fillStyle: 'white'
                        },
                        data: [['N', 65], ['A', 58], ['B', 30],
                        ['F', 60], ['C', 65]]
                    }
                ]
            });