rem: boxobj.rowCountChanged(getCalendars().indexOf(aCalendar), -1); 
add:          boxobj.invalidate(); 
context: function removeCalendarFromTree(aCalendar){    var boxobj = document.getElementById("calendarTree").treeBoxObject;    boxobj.rowCountChanged(getCalendars().indexOf(aCalendar), -1);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/21cf0f246859c5237322532608c98a561edb9107/calendar-management.js/clean/calendar/lightning/content/calendar-management.js