判断时间大小 yyyy-MM-dd 格式

    // yyyy-MM-dd
    function bigThanToday(someDate){
        var date = new Date();
        var dateStr = date.getFullYear()+"-"+fillZero(date.getMonth()+1)+"-"+fillZero(date.getDate());
        return someDate > dateStr;
    }
    function fillZero(num){
        if(num.toString().length == 1){
            num = "0" + num;
        }
        return num;
   }