add: _watchInFlight(); 
context: 	var _launch = function(obj){		obj.startTime = (new Date()).getTime();		_inFlight.push(obj);		if(!_inFlightIntvl){			_inFlightIntvl = _setIntvl(_watchInFlight, 50);		}	}
meta: 4497	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4497/b0f284679a32e6fde87792dec400fb97e0a752fa/xhr.js/buggy/_base/xhr.js