JS -wiki

       //检测手机号码是否合法
      function isPhone(phone){
            var phone = (phone+"").trim();
            var reg = /^1[34568]{1}\d{9}$/;
            var flag = false;
           if (phone != null && phone.length > 0){
                (flag = reg.test(phone)) ? true : false;
           }
           return flag;
        }

        //检测邮箱是否合法
        function isEmail(email){
            var phoneNum = (email+"").trim();
            var reg =  /^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/;
            var flag = false;
           if (email != null && email.length >0) {
               (flag = reg.test(email)) ? true : false;
           }
        }