JSON中的日期格式化

ConvertJsonDate: function (jd) {
        var d = new Date(parseInt(jd.replace("/Date(", "").replace(")/", ""), 10));
        if (d.toString().split("-").length > 1) {
            return d;
        }
        var month = {
            "Jan": 1,
            "Feb": 2,
            "Mar": 3,
            "Apr": 4,
            "May": 5,
            "Jun": 6,
            "Jul": 7,
            "Aug": 8,
            "Sep": 9,
            "Oct": 10,
            "Nov": 11,
            "Dec": 12
        };
        var str = d.toString().split(" "), dd = str[5] + "-" + month[str[1]] + "-" + str[2] + " " + str[3];
        var ddd = new Date(Date.parse(dd.replace(/-/g, "/")));
        var week = {
            "Mon": "/u65e5",
            "Tue": "/u4e00",
            "Wed": "/u4e8c",
            "Thu": "/u4e09",
            "Fri": "/u56db",
            "Sat": "/u4e94",
            "Sun": "/u516d",

            "0": "/u65e5",
            "1": "/u4e00",
            "2": "/u4e8c",
            "3": "/u4e09",
            "4": "/u56db",
            "5": "/u4e94",
            "6": "/u516d"
        };
        var o = {
            "M+": ddd.getMonth() + 1, //月份
            "d+": ddd.getDate(), //日
            "h+": ddd.getHours() % 12 == 0 ? 12 : ddd.getHours() % 12, //小时
            "H+": ddd.getHours(), //小时 
            "m+": ddd.getMinutes(), //分
            "s+": ddd.getSeconds(), //秒
            "q+": Math.floor((ddd.getMonth() + 3) / 3), //季度
            "S": ddd.getMilliseconds() //毫秒
        };
        var fmt = dd;
        if (arguments.length == 2) {
            fmt = arguments[1];
            if (/(y+)/.test(fmt)) {
                fmt = fmt.replace(RegExp.$1, (ddd.getFullYear() + "").substr(4 - RegExp.$1.length));
            }
            if (/(E+)/.test(fmt)) {//E(五);EE(周五),EEE(星期五)
                fmt = fmt.replace(RegExp.$1, ((RegExp.$1.length > 1) ? (RegExp.$1.length > 2 ? "/u661f/u671f" : "/u5468") : "") + week[ddd.getDay() + ""]);
            }
            for (var k in o) {
                if (new RegExp("(" + k + ")").test(fmt)) {
                    fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
                }
            }
        }
        return unescape(fmt.replace(/\//g, ‘%‘));
    }