rem: calendarToDo = gTaskArray[row]; if( !calendarToDo ) return; 
add: calendarToDo = gTaskArray[row]; if(!calendarToDo) return; 
context:    cycleCell : function(row,col)   {    calendarToDo = gTaskArray[row];    if( !calendarToDo ) return;    // Moz1.8 trees require column.id, moz1.7 and earlier trees use column.    if( (typeof(col)=="object" ? col.id : col) == "unifinder-todo-tree-col-completed")  {          if (calendarToDo.completedDate.isValid)              checkboxClick( calendarToDo, false ) ;	  else               checkboxClick( calendarToDo, true ) ;	}   },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/fa153894fc16274ccdd1ac0fcbb84027018dbff0/unifinderToDo.js/clean/calendar/resources/content/unifinderToDo.js