function RQcheck(RQ) {            var date = RQ;            var result = date.match(/^(\d{1,4})(-|\/)(\d{1,2})\2(\d{1,2})$/);            if (result == null)                return false;            var d = new Date(result[1], result[3] - 1, result[4]);            return (d.getFullYear() == result[1] && (d.getMonth() + 1) == result[3] && d.getDate() == result[4]);        }function CheckAdd() {            var ret = true;            if (!RQcheck($id("txt_LLRQ").value)) {                alert("请输入正确的日期");                return false;            }            return ret;        }