add: this.mLastModifiedTime = createCalDateTime(); 
context:     initItemBase: function () {        this.mCreationDate = createCalDateTime();        this.mAlarmTime = createCalDateTime();        this.mProperties = Components.classes["@mozilla.org/hash-property-bag;1"].                           createInstance(Components.interfaces.nsIWritablePropertyBag);        this.mAttendees = [];        this.mRecurrenceInfo = null;        this.mAttachments = null;        this.mContacts = null;    },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/b4a3b00ed58fa70e21c7fdade2185d7787d28428/calItemBase.js/clean/calendar/base/src/calItemBase.js