rem: occ.wrappedJSObject.occurrenceStartDate = item.start; occ.wrappedJSObject.occurrenceEndDate = item.end; 
add: occ.wrappedJSObject.occurrenceStartDate = start; occ.wrappedJSObject.occurrenceEndDate = end; 
context: function makeOccurrence(item, start, end){    var occ = Components.classes["@mozilla.org/calendar/item-occurrence;1"].        createInstance(calIItemOccurrence);    // XXX poor form    occ.wrappedJSObject.item = item;    occ.wrappedJSObject.occurrenceStartDate = item.start;    occ.wrappedJSObject.occurrenceEndDate = item.end;    return occ;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/cddf2dfee7ef626b00cea6cdc326ba0dfce0aeaf/calMemoryCalendar.js/clean/calendar/providers/memory/calMemoryCalendar.js