js中日期与毫秒数互相转换

<script type="text/javascript">

var startTime = '2014-04-11 18:22:55';

var endTime = startTime.replace(new RegExp("-","gm"),"/");

alert(endTime);

var oldTime = (new Date(endTime )).getTime(); //转为毫秒数

alert(oldTime);

var newTime = new Date(oldTime); //转为时间

</script>