hig1

<script type="text/javascript">
            Highcharts.visualize = function(table, options) {

                // the categories
                options.xAxis.categories = [];
                $('tbody th', table).each( function(i) {
                    options.xAxis.categories.push(this.innerHTML);
                });

                // the data series
                options.series = [];
                $('tr', table).each( function(i) {
                    var tr = this;
                    $('th, td', tr).each( function(j) {
                        if (j > 0) { // skip first column
                            if (i == 0) { // get the name and init the series
                                options.series[j - 1] = {
                                    name: this.innerHTML,
                                    data: []
                                };
                            } else { // add values
                                options.series[j - 1].data.push(parseFloat(this.innerHTML));
                            }
                        }
                    });
                });

                var chart = new Highcharts.Chart(options);
            }

            // On document ready, call visualize on the datatable.
            $(document).ready(function() {
                var table = document.getElementById('datatable'),
                options = {
                       chart: {
                          renderTo: 'container',
                          defaultSeriesType: 'column'
                       },
                       title: {
                          text: 'Grafico de acompanhamento'
                       },
                       xAxis: {

                       labels: {
                        rotation: -55,
                        align: 'right',
                        style: {
                         font: 'normal 9px Verdana, sans-serif'
                            }
                        }
                        },
                       yAxis: {
                          title: {
                             text: 'Notas'
                          }
                       },
                       tooltip: {
                          formatter: function() {
                             return '<b>'+ this.series.name +'</b><br/>'+
                                this.y +' '+ this.x.toLowerCase();
                          }
                       }
                    };


                Highcharts.visualize(table, options);
            });

        </script>