身份证验证:

//身份证验证
function identityCodeValid(code) {
    if (code + "" == "") {
        return;
    }
    var city = { 11: "北京", 12: "天津", 13: "河北", 14: "山西", 15: "内蒙古", 21: "辽宁", 22: "吉林", 23: "黑龙江 ", 31: "上海", 32: "江苏", 33: "浙江", 34: "安徽", 35: "福建", 36: "江西", 37: "山东", 41: "河南", 42: "湖北 ", 43: "湖南", 44: "广东", 45: "广西", 46: "海南", 50: "重庆", 51: "四川", 52: "贵州", 53: "云南", 54: "西藏 ", 61: "陕西", 62: "甘肃", 63: "青海", 64: "宁夏", 65: "新疆", 71: "台湾", 81: "香港", 82: "澳门", 91: "国外 " };
    var tip = "";
    var pass = true;
    //验证身份证格式(6个地区编码,8位出生日期,3位顺序号,1位校验位)
    if (!code || !/^\d{6}(18|19|20)?\d{2}(0[1-9]|1[12])(0[1-9]|[12]\d|3[01])\d{3}(\d|X)$/i.test(code)) {
        tip = "身份证号格式错误";
        pass = false;
    }

    else if (!city[code.substr(0, 2)]) {
        tip = "身份证号地址编码错误";
        pass = false;
    }
    else {
        //18位身份证需要验证最后一位校验位
        if (code.length == 18) {
            code = code.split('');
            //∑(ai×Wi)(mod 11)
            //加权因子
            var factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
            //校验位
            var parity = [1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2];
            var sum = 0;
            var ai = 0;
            var wi = 0;
            for (var i = 0; i < 17; i++) {
                ai = code[i];
                wi = factor[i];
                sum += ai * wi;
            }
            var last = parity[sum % 11];
            if (parity[sum % 11] != code[17]) {
                tip = "身份证号校验位错误";
                pass = false;
            }
        }
    }
    if (!pass) alert(tip);
    return pass;
}

身份证获取生日(yyyy-mm-dd)

//身份证获取生日(yyyy-mm-dd)
function getBirthdayFromIdCard(idCard) {
    var birthday = "";
    if (idCard != null && idCard != "") {
        if (idCard.length == 15) {
            birthday = "19" + idCard.substr(6, 6);
        } else if (idCard.length == 18) {
            birthday = idCard.substr(6, 8);
        }

        birthday = birthday.replace(/(.{4})(.{2})/, "$1-$2-");
    }

    return birthday;
}

身份证获取性别:

//身份证获取性别
function getSexByID(id) {
    var sex;
    if (id.length == 15) {
        if (parseInt(id.charAt(14) / 2) * 2 != id.charAt(14)) {
            sex = "男";
        }
        else {
            sex = "女";
        }
    }
    else if (id.length == 18) {
        if (parseInt(id.charAt(16) / 2) * 2 != id.charAt(16)) {
            sex = "男";
        }
        else {
            sex = "女";
        }
    }
    return sex;
};