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