rem: if( !calendarToDo ) return false; 
add: if( !calendarToDo ) return; 
context:    cycleCell : function(row,colId)   {    calendarToDo = gTaskArray[row];    if( !calendarToDo ) return false;    if( colId == "unifinder-todo-tree-col-completed")	{	  var completed = calendarToDo.completed.getTime();	  	  if( completed > 0 )	  checkboxClick( calendarToDo, false ) ;	  else 	  checkboxClick( calendarToDo, true ) ;	}   },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/43af53d38378fb9a505110a2d97a8a77d2e30104/unifinderToDo.js/buggy/calendar/resources/content/unifinderToDo.js