le');

    this.$tableBody = this.$table.createTBody();

    tableContainer.appendChild(this.$table);
    this.$pane.appendChild(tableContainer);

    menu.$specContainer.appendChild(this.$container);
  },

  activate: function () {
    this.$container.classList.add('active');
  },

  deactivate: function () {
    this.$container.classList.remove('active');
  },

  showReferencesFor(entry) {
    this.activate();
    var newBody = document.createElement('tbody');
    var previousId;
    var previousCell;
   