Flex 获取每月第几周小例子

<pre name="code" class="html">private function calcweektotal(showdate:date):array{ 
        showdate = dateformatter.parsedatestring("2013-04-01"); 
        //获取本月1好的日期 
        var onedate:date = new date(showdate.fullyear,showdate.month,1); 
        //本月第一周星期一的日期 
        var oneweekdate:int = 7 - onedate.day + 2; 
        //本月共几天 
        var totalday :int= new date(showdate.fullyear,showdate.month,0).date; 
        var totalweek:int = (totalday - oneweekdate + 1) % 7 == 0 ? 
          (totalday - oneweekdate + 1) /7:(totalday - oneweekdate + 1) /7 + 1; 
        trace(totalweek); 
        //当前日期在本月第几周 
        var currentweek:int = new int((showdate.date - oneweekdate)/7) + 1; 
        if(currentweek == 0){ 
          //上个月最后一周 
        } 
         
        var arr:array = new array(); 
        arr[0] = totalweek; 
        arr[1] = currentweek; 
        return arr; 
      }</pre><br> 
<br> 
<pre></pre>