113     this.check_sack = new sack(DOKU_BASE + 'lib/plugins/chat/ajax.php');
114     this.check_sack.AjaxFailedAlert = '';
115     this.check_sack.encodeURIString = false;
150     this.check_sack.onLoading = function() {  method
152 		self.check_sack.requestTimer = setTimeout(
155 			self.check_sack.requestTimer = null;
157 			    if (self.check_sack.xmlhttp.abort) {
158 					self.check_sack.xmlhttp.abort();
163 			self.check_sack.onError();
168     this.check_sack.onError = function() {  method
169 		if (self.check_sack.requestTimer !== null) {
170 			clearTimeout(self.check_sack.requestTimer);
171 			self.check_sack.requestTimer = null;
178 		self.check_sack.onCompletion();
181     this.check_sack.onLoaded = function() {  method
182 		if (self.check_sack.requestTimer !== null) {
183 		    clearTimeout(self.check_sack.requestTimer);
184 		    self.check_sack.requestTimer = null;
412     this.check_sack.onCompletion = function() {  method
417 		var data = self.check_sack.response;
419 		if (200 != self.check_sack.responseStatus[0]*1) {
421 			self.updateInfo('ajaxLastStatus','Error '+self.check_sack.responseStatus[0]+', waiting');
456     if (self.check_sack.encVar) {
457 	self.check_sack.encVar('call', 'checkAndGet');
458 	self.check_sack.encVar('pageId', self.pageId);
459 	self.check_sack.encVar('time', self.lastRefresh);
460 	self.check_sack.runAJAX();
463 	self.check_sack.runAJAX(
513     if (null != self.check_sack.requestTimer) {
514 	clearTimeout(self.check_sack.requestTimer);
515 	self.check_sack.requestTimer = null;
519     if (self.check_sack.xmlhttp && self.check_sack.xmlhttp.abort) {
522 	    self.check_sack.xmlhttp.abort();