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: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/4bd65711728aefffd07c64f2d95564e1826ab1c2/calendar-management.js/clean/calendar/lightning/content/calendar-management.js