public function next(event:MouseEvent):void{

    var date:Date= DateFormatter.parseDateString(showDate);

    date.setDate(date.date+1);

    showDate=AFCDate.parseCurrentCalendar(date).substring(0,10);

    timeLabel.text=showDate;

    //判断(下一天)时间不能大于结束时间

    resetButton();

    if(parentUI.scheduleMap.hasKey(showDate)){

     documentDG.dataProvider=parentUI.scheduleMap.itemFor(showDate) as ArrayCollection;

    }

   }

   public function preDay(event:MouseEvent):void{

    var date:Date= DateFormatter.parseDateString(showDate);

    date.setDate(date.date-1);

    showDate=AFCDate.parseCurrentCalendar(date).substring(0,10);

    timeLabel.text=showDate;

    //判断(上一天)时间不能小于开始时间

    resetButton();

    if(parentUI.scheduleMap.hasKey(showDate)){

     documentDG.dataProvider=parentUI.scheduleMap.itemFor(showDate) as ArrayCollection;

    }

   }

   private function resetButton():void{

    var showDay:String=showDate.toString();

    var startDay:String=parentUI.startDate.value.toString().substring(0,10);

    var endDay:String=parentUI.endDate.value.toString().substring(0,10);

    var myPattern:RegExp=/-|:| /g;

    showDay=showDay.replace(myPattern,'');

    startDay=startDay.replace(myPattern,'');

    endDay=endDay.replace(myPattern, '');

    if(Number(showDay)>=Number(endDay)){

     nextButton.enabled=false;

    }else{

     nextButton.enabled=true;

    }

    if(Number(showDay)<=Number(startDay)){

     preDayButton.enabled=false;

    }else{

     preDayButton.enabled=true;

    }

   }