js格式化人民币金额￥999.99

        function FormatMoney(s) {            if (/[^0-9\.]/.test(s)) return "invalid value";            s = s.replace(/^(\d*)$/, "$1.");            s = (s + "00").replace(/(\d*\.\d\d)\d*/, "$1");            s = s.replace(".", ",");            var re = /(\d)(\d{3},)/;            while (re.test(s))                s = s.replace(re, "$1,$2");            s = s.replace(/,(\d\d)$/, ".$1");            return "￥" + s.replace(/^\./, "0.")        }