docs: function (id, cb) {
              if (this.subTplCtxt) {
                  return this._focusHelper(id);
              } else {
                  this.$onOnce({
                      'ElementReady' : function () {
                          var focusSuccess = this._focusHelper(id);
                          if (focusSuccess === false) {
                              this.$callback(cb);
                          }
                      },
                      scope : this
                  });
                  return true;
              }
          }