flex将一段时间内的月份放在集合中

   var arr:ArrayCollection = new ArrayCollection();
    var date:Date = new Date();
    date.fullYear = 2014;
    date.month=0;
    var now:Date = new Date();
    now.month+=1;
    while(date.fullYear != now.fullYear || date.month != now.month){
     arr.addItem(date.fullYear+"-"+(date.month>=9?(date.month+1+""):("0"+(date.month+1))));
     date.month+=1;
    }

flex里将2014-01月到今天止的月份  放在集合里。