rem: this.canceller=_274; 
add: this.canceller=_280; 
context: MochiKit.Async.Deferred=function(_274){this.chain=[];this.id=this._nextId();this.fired=-1;this.paused=0;this.results=[null,null];this.canceller=_274;this.silentlyCancelled=false;};
meta: 8607	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8607/8b42fb2ed090da7f1e336726dcb69d2649658e7c/MochiKit.js/clean/trunk/lib/MochiKit.js