js 时间毫秒

1. "2014-08-18 00:00:00"  与　13位毫秒　互换

　　

 var oTime = {

      _format_13_time:function (str){
        var time = str.replace(new RegExp("-","gm"),"/");
        var haoMiao = (new Date(time)).getTime();
        return haoMiao;
     },
     _add_zero: function (str)
     {
        if(parseInt(str) < 10){
           str = "0" + str;
        }
        return str;
     },
     _format_date_time: function (str)
     {
        var d = new Date();
        d.setTime(str);
        var YMDHMS = d.getFullYear() + "-" + oTimeObj._add_zero((d.getMonth()+1)) + "-" + oTimeObj._add_zero(d.getDate()) + " "
                     + oTimeObj._add_zero(d.getHours()) + ":" + oTimeObj._add_zero(d.getMinutes()) + ":" + oTimeObj._add_zero(d.getSeconds());
        return YMDHMS;
     }

 }

var msec = Date.parse("March 21, 2012");   //13位毫秒数

http://www.w3schools.com/js/js_date_methods.asp