$chart = new Highchart();

$chart->chart->renderTo = "container";
$chart->chart->type = "column";
$chart->title->text = "Data extracted from a HTML table in the page";
$chart->xAxis = new HighchartOption(); // We need it to be empty to avoid js
                                       // errors
$chart->yAxis->title->text = "Units";

$chart->tooltip->formatter = new HighchartJsExpr(
    "function() {
    return '<b>'+ this.series.name +'</b><br/>'+
    this.y +' '+ this.x.toLowerCase();}");