rem: if (!dt) 
add: if (!dt || !dt.isValid) 
context: function getIcalUTC(dt) {    if (!dt)        return "0";    else {        var dtz = dt.timezone;        if (dtz == "UTC" || dtz == "floating")            return dt.icalString;        else            return dt.getInTimezone("UTC").icalString;    }}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/068d284e38e7708170ea2f6836ede942922ad1a8/calWcapUtils.js/clean/calendar/providers/wcap/calWcapUtils.js