title: Highchart shows only points
body: <p>I'm a newbie in html and javascript.
  I'm Trying to make a spline chart with csv data file but the chart only shows the points.
  Could anyone help me? Thanks in advance.
  The parsing csv code follows below:</p>
  
  <pre><code>    jQuery.get(dataFilePath, null, function(csv, state, xhr) {
          var lines = [],
              date,
  
              // set up the two data series
              lightLevels = [];
  
          // inconsistency
          if (typeof csv !== 'string') {
              csv = xhr.responseText;
          }
  
          // split the data return into lines and parse them
          csv = csv.split(/\n/g);
          jQuery.each(csv, function(i, line) {
  
              // all data lines start with a double quote
              line = line.split(',');
              date = parseInt(line[0], 10)*1000;
  
              lightLevels.push([
                  date,
                  parseFloat(line[1], 10)
              ]);
  
          });
  
          options.series[0].data = lightLevels;
  
          chart = new Highcharts.Chart(options);
      });
  });     
  });
  </code></pre>
  
  <p>The graph code is:</p>
  
  <pre><code>chart: {
              type: 'spline',
              backgroundColor: '#464344',
              renderTo: 'container',
              zoomType: 'x',
              spacingRight: 20,
          },
          navigator: {
          enabled: true,
          height: 15
          },
          scrollbar: {
          enabled: true,
          height: 5
          },
  
          rangeSelector: {
              enabled: true,
              buttons: [{
              type: 'minute',
                  count: 30,
                  text: '30m'
              }, {
              type: 'minute',
                  count: 60,
                  text: '1h'
              }, {
              type: 'minute',
                  count: 180,
                  text: '3h'
              }, {
              type: 'day',
                  count: 1,
                  text: '1d'
              }, {
              type: 'day',
                  count: 2,
                  text: '2d'
              }, {
              type: 'all',
                  text: 'All'
              }],
  
              inputDateFormat: '%b %e/%H:%M',
              inputEditDateFormat: '%b-%e/%H:%M',
              inputDateParser: function(value) {
              value = value.split(/[:\.]/);
              return Date.UTC(
                  1970, 
                  0, 
                  1, 
                  parseInt(value[0]),
                  parseInt(value[1]),
                  parseInt(value[2]),
                  parseInt(value[3])
              );
          },
          }, 
  
          title: {
              text: 'Pistas Foam - Cloro Livre (mg/l)'
          },
  
          subtitle: {
              text: 'Clique e arraste na area do grafico para zoom'
          },
  
          xAxis: {
              type: 'datetime',
              maxZoom: 1 * 1800000
          },
  
          yAxis: {
              title: {
                  text: 'Cloro Livre mg/l (0 - 5)'
              },
              min: 0,
              startOnTick: false,
              showFirstLabel: false
          },
  
          legend: {
              enabled: false
          },
  
          tooltip: {
              formatter: function() {
                      return '&lt;b&gt;'+ this.series.name +'&lt;/b&gt;&lt;br/&gt;'+
                      Highcharts.dateFormat('%H:%M - %b %e, %Y', this.x) +': '+ this.y;
              }
          },
  
          plotOptions: {
              series: {
                  cursor: 'pointer',
                  lineWidth: 1.0,
                  point: {
                      events: {
                          click: function() {
                              hs.htmlExpand(null, {
                                  pageOrigin: {
                                      x: this.pageX,
                                      y: this.pageY
                                  },
                                  headingText: this.series.name,
                                  maincontentText: Highcharts.dateFormat('%H:%M - %b %e, %Y', this.x) +':&lt;br/&gt; '+
                                      this.y,
                                  width: 200
                              });
                          }
                      }
                  },
              }
          },
  
          series: [{
              name: 'Cloro Livre',
              marker: {
                  radius: 2
              }
          }]
      };
  </code></pre>