1444   register: function(responder) {  argument
1445     if (!this.include(responder))
1446       this.responders.push(responder);
1449   unregister: function(responder) {  argument
1450     this.responders = this.responders.without(responder);
1454     this.each(function(responder) {  argument
1455       if (Object.isFunction(responder[callback])) {
1457           responder[callback].apply(responder, [request, transport, json]);
5565     var responder;
5567       responder = function(event) {  function
5581           responder = function(event) {
5596         responder = function(event) {
5603     responder.handler = handler;
5604     respondersForEvent.push(responder);
5605     return responder;
5636     var responder = _createResponder(element, eventName, handler);
5638     if (!responder) return element;
5642         element.addEventListener("dataavailable", responder, false);
5644         element.attachEvent("ondataavailable", responder);
5645         element.attachEvent("onlosecapture", responder);
5651         element.addEventListener(actualEventName, responder, false);
5653         element.attachEvent("on" + actualEventName, responder);
5683     var i = responders.length, responder;
5686         responder = responders[i];
5690     if (!responder) return element;
5694         element.removeEventListener("dataavailable", responder, false);
5696         element.detachEvent("ondataavailable", responder);
5697         element.detachEvent("onlosecapture", responder);
5702         element.removeEventListener(actualEventName, responder, false);
5704         element.detachEvent('on' + actualEventName, responder);
5707     registry.set(eventName, responders.without(responder));