code: function createActionButton (title, callback, appendTo) {
      appendTo = appendTo || 'buttons';
      var buttons = document.getElementById(appendTo);
      var div = document.createElement('div');
      var button = document.createElement('a');
      button.textContent = title;
      button.onclick = function (e) {
          e.preventDefault();
          callback();
      };
      button.classList.add('topcoat-button');
      div.appendChild(button);
      buttons.appendChild(div);
  }
docs: ***************************************************************************