rem:  this.mRecurrenceInfo = Components.classes["@mozilla.org/calendar/recurrence-info;1"]. createInstance(Components.interfaces.calIRecurrenceInfo); 
add: this.mRecurrenceInfo = null; 
context:     initItemBase: function () {        this.mCreationDate = new CalDateTime();        this.mAlarmTime = new CalDateTime();        this.mLastModifiedTime = new CalDateTime();        this.mCreationDate.jsDate = new Date();        this.mLastModifiedTime.jsDate = new Date();        this.mProperties = Components.classes["@mozilla.org/hash-property-bag;1"].                           createInstance(Components.interfaces.nsIWritablePropertyBag);        this.mAttendees = [];        this.mRecurrenceInfo = Components.classes["@mozilla.org/calendar/recurrence-info;1"].                               createInstance(Components.interfaces.calIRecurrenceInfo);        this.mAttachments = null;    },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/9a9719b366d04d5db90dfcb7e370af554ae5c045/calItemBase.js/clean/calendar/base/src/calItemBase.js