js校验时间

//匹配的日期格式为 ：yyyy-MM-dd hh:mm:ss
function check(time){
                var r = time.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/);
                if(r==null)
                    return false; 
                var d = new Date(r[1], r[3]-1,r[4],r[5],r[6],r[7]);
                return (d.getFullYear()==r[1]&&(d.getMonth()+1)==r[3]&&d.getDate()==r[4]&&d.getHours()==r[5]&&d.getMinutes()==r[6]&&d.getSeconds()==r[7]);
            }