rem: throw Components.results.NS_NOT_IMPLEMENTED; 
add: throw Components.results.NS_ERROR_NOT_IMPLEMENTED; 
context:     set icalString() {        throw Components.results.NS_NOT_IMPLEMENTED;    },
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/51f7d2c532dc89b24e4f258346ec83fefb1bb104/calItemBase.js/buggy/calendar/base/src/calItemBase.js