js检查日期是否合法

    <script>
        function CheckDateTime(str) {
            var reg = /^(\d+)-(\d{1,2})-(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/;
            var r = str.match(reg); if (r == null) return false;
            r[2] = r[2] - 1; var d = new Date(r[1], r[2], r[3], r[4], r[5], r[6]);
            if (d.getFullYear() != r[1]) return false;
            if (d.getMonth() != r[2]) return false;
            if (d.getDate() != r[3]) return false;
            if (d.getHours() != r[4]) return false;
            if (d.getMinutes() != r[5]) return false;
            if (d.getSeconds() != r[6]) return false;
            return true;
        }
    </script>