code: function insert(sibling, element, id) {
    var doc = sibling.ownerDocument;
    if (!element) {
      element = doc.getElementById('gcli-row-complete');
      if (!element) {
        element = util.createElement(doc, 'div');
        sibling.parentNode.insertBefore(element, sibling.nextSibling);
        element.gcliCreated = true;
      }
    }
    return element;
  }
docs: Utility to help find an element by id, creating it if it wasn't found