jquery通过身份证号获取性别和生日

项目中有遇到需要根据用户输入的身份证号码自动获取出身日期及性别。在网上搜了一些方法在项目中使用。现整理记录一下，方便后面使用。
card.js代码，用于判断身份证号格式是否正确（主要是长度和出身日期）：

//判断身份证格式
function isIdCardNo(num) {
    var factorArr = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1);
    var parityBit = new Array("1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2");
    var varArray = new Array();
    var lngProduct = 0;
    var intCheckDigit;
    var intStrLen = num.length;
    var idNumber = num;
    // initialize
    if ((intStrLen != 15) && (intStrLen != 18)) {
        return false;
    }
    // check and set value
    for (var i = 0; i < intStrLen; i++) {
        varArray[i] = idNumber.charAt(i);
        if ((varArray[i] < '0' || varArray[i] > '9') && (i != 17)) {
            return false;
        } else if (i < 17) {
            varArray[i] = varArray[i] * factorArr[i];
        }
    }
    //判断18位长度
    if (intStrLen == 18) {
        //check date
        var date8 = idNumber.substring(6, 14);
        if (isDate8(date8) == false) {
            return false;
        }
        // calculate the sum of the products
        for (var i = 0; i < 17; i++) {
            lngProduct = lngProduct + varArray[i];
        }
        // calculate the check digit
        intCheckDigit = parityBit[lngProduct % 11];
        // check last digit
        if (varArray[17] != intCheckDigit) {
            return false;
        }
     //判断18位长度
    }else {
        //check date
        var date6 = idNumber.substring(6, 12);
        if (isDate6(date6) == false) {
            return false;
        }
    }
    return true;
}

//15位长度判断生日
function isDate6(sDate) {
    if (!/^[0-9]{6}$/.test(sDate)) {
        return false;
    }
    var year, month, day;
    year = sDate.substring(0, 4);
    month = sDate.substring(4, 6);
    if (year < 1700 || year > 2500) return false;
    if (month < 1 || month > 12) return false;
    return true;
}

//18位长度判断生日
function isDate8(sDate) {
    if (!/^[0-9]{8}$/.test(sDate)) {
        return false;
    }
    var year, month, day;
    year = sDate.substring(0, 4);
    month = sDate.substring(4, 6);
    day = sDate.substring(6, 8);
    var iaMonthDays = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
    if (year < 1700 || year > 2500) return false;
    if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) iaMonthDays[1] = 29;
    if (month < 1 || month > 12) return false;
    if (day < 1 || day > iaMonthDays[month - 1]) return false;
    return true;
}

js中的根据日期获取生日和性别的方法：

function getSexAndbirthday (IdCard) {
            var birthday = "";
            var sexNo = "";
            var sex = "";
            if(IdCard.length === 15) {
                birthday =  '19'+IdCard.substr(6,2)+'-'+IdCard.substr(8,2)+'-'+IdCard.substr(10,2);
                sexNo = IdCard.substring(14,15)
            } else if (IdCard.length === 18) {
                birthday =  IdCard.substr(6,4)+'-'+IdCard.substr(10,2)+'-'+IdCard.substr(12,2);
                sexNo = IdCard.substring(16,17)
            }
            if (sexNo%2==0){
                sex = 'FEMALE';
            }else {
                sex = 'MALE';
            }
            return {sex: sex, birthday: birthday};
        }