rem: this.mObservers[i].onAddItem(aNewItem, aOldItem); 
add: this.mObservers[i].onModifyItem(aNewItem, aOldItem); 
context:     onModifyItem: function(aNewItem, aOldItem) {        for (var i = 0; i < this.mObservers.length; i++)            this.mObservers[i].onAddItem(aNewItem, aOldItem);        if (!this.mInBatch)            this.mCalendar.writeICS();    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/1b6f0137f730b59d027e44c345e981351b7d1aba/calICSCalendar.js/buggy/calendar/providers/ics/calICSCalendar.js