code: function(response) {
          if (response) {
              this.destroyRequest(response.priv);
          } else {
              for (var key in this.pendingRequests) {
                  this.destroyRequest(this.pendingRequests[key]);
              }
          }
      }
docs: APIMethod: abort
  Abort an ongoing request.  If no response is provided, all pending
  requests will be aborted.
  
  Parameters:
  response - {<OpenLayers.Protocol.Response>} The response object returned
  from a <read> request.