docs: function(response, options) {
          if (options.callback) {
              if (response.data) {
                  response.features = this.parseFeatures(response.data);
                  response.code = OpenLayers.Protocol.Response.SUCCESS;
              } else {
                  response.code = OpenLayers.Protocol.Response.FAILURE;
              }
              this.destroyRequest(response.priv);
              options.callback.call(options.scope, response);
          }
      }