text: function draw_organogram() {
      // console.log(organogram_data);
      var data = new google.visualization.DataTable();
      data.addColumn('string', 'Nome');
      data.addColumn('string', 'Livello Superiore');
      data.addColumn('string', 'Informazioni');
  
      var organogram = []
  
      for (person_id in organogram_data) {
          current_person = organogram_data[person_id];
  
          if (current_person.parent_level === undefined || current_person.parent_level === null) {
            current_person.parent_level = '0'
          }
          row = [
              {v:current_person.name + " " +current_person.surname,f:current_person.name+" "+current_person.surname+"<br><div class='role'>"+current_person.sector.toUpperCase()+": "+current_person.role+"</div>"},
              organogram_data[current_person.parent_level.toString()].name + " " + organogram_data[current_person.parent_level.toString()].surname,
              current_person.email
          ];
          organogram.push(row);
      }
  
      data.addRows(organogram);
  
      // Create the chart.
      var chart = new google.visualization.OrgChart($('#organogram').get(0));
      // Draw the chart, setting the allowHtml option to true for the tooltips.
      chart.draw(data, {allowHtml:true,allowCollapse:true});
  }
  