js 验证 身份证号

// 构造函数，变量为15位或者18位的身份证号码

function clsIDCard(CardNo) {

this.Valid = false;

this.ID15 = '';

this.ID18 = '';

this.Local = '';

if (CardNo != null)

this.SetCardNo(CardNo);

}

// 设置身份证号码，15位或者18位

clsIDCard.prototype.SetCardNo = function(CardNo) {

this.ID15 = '';

this.ID18 = '';

this.Local = '';

CardNo = CardNo.replace(" ", "");

var strCardNo;

if (CardNo.length == 18) {

pattern = /^\d{17}(\d|x|X)$/;

if (pattern.exec(CardNo) == null)

return;

strCardNo = CardNo.toUpperCase();

} else {

pattern = /^\d{15}$/;

if (pattern.exec(CardNo) == null)

return;

strCardNo = CardNo.substr(0, 6) + '19' + CardNo.substr(6, 9)

strCardNo += this.GetVCode(strCardNo);

}

this.Valid = this.CheckValid(strCardNo);

}

// 校验身份证有效性

clsIDCard.prototype.IsValid = function() {

return this.Valid;

}

// 返回生日字符串，格式如下，1981-10-10

clsIDCard.prototype.GetBirthDate = function() {

var BirthDate = '';

if (this.Valid)

BirthDate = this.GetBirthYear() + '-' + this.GetBirthMonth() + '-'

+ this.GetBirthDay();

return BirthDate;

}

// 返回生日中的年，格式如下，1981

clsIDCard.prototype.GetBirthYear = function() {

var BirthYear = '';

if (this.Valid)

BirthYear = this.ID18.substr(6, 4);

return BirthYear;

}

// 返回生日中的月，格式如下，10

clsIDCard.prototype.GetBirthMonth = function() {

var BirthMonth = '';

if (this.Valid)

BirthMonth = this.ID18.substr(10, 2);

if (BirthMonth.charAt(0) == '0')

BirthMonth = BirthMonth.charAt(1);

return BirthMonth;

}

// 返回生日中的日，格式如下，10

clsIDCard.prototype.GetBirthDay = function() {

var BirthDay = '';

if (this.Valid)

BirthDay = this.ID18.substr(12, 2);

return BirthDay;

}

// 返回性别，1：男，0：女

clsIDCard.prototype.GetSex = function() {

var Sex = '';

if (this.Valid)

Sex = this.ID18.charAt(16) % 2;

return Sex;

}

// 返回15位身份证号码

clsIDCard.prototype.Get15 = function() {

var ID15 = '';

if (this.Valid)

ID15 = this.ID15;

return ID15;

}

// 返回18位身份证号码

clsIDCard.prototype.Get18 = function() {

var ID18 = '';

if (this.Valid)

ID18 = this.ID18;

return ID18;

}

// 返回所在省，例如：上海市、浙江省

clsIDCard.prototype.GetLocal = function() {

var Local = '';

if (this.Valid)

Local = this.Local;

return Local;

}

clsIDCard.prototype.GetVCode = function(CardNo17) {

var Wi = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1);

var Ai = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');

var cardNoSum = 0;

for (var i = 0; i < CardNo17.length; i++)

cardNoSum += CardNo17.charAt(i) * Wi[i];

var seq = cardNoSum % 11;

return Ai[seq];

}

clsIDCard.prototype.CheckValid = function(CardNo18) {

if (this.GetVCode(CardNo18.substr(0, 17)) != CardNo18.charAt(17))

return false;

if (!this.IsDate(CardNo18.substr(6, 8)))

return false;

var aCity = {

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"

};

if (aCity[parseInt(CardNo18.substr(0, 2))] == null)

return false;

this.ID18 = CardNo18;

this.ID15 = CardNo18.substr(0, 6) + CardNo18.substr(8, 9);

this.Local = aCity[parseInt(CardNo18.substr(0, 2))];

return true;

}

clsIDCard.prototype.IsDate = function(strDate) {

var r = strDate.match(/^(\d{1,4})(\d{1,2})(\d{1,2})$/);

if (r == null)

return false;

var d = new Date(r[1], r[2] - 1, r[3]);

return (d.getFullYear() == r[1] && (d.getMonth() + 1) == r[2] && d

.getDate() == r[3]);

}

/*

* 关于调用

* $("#cardNo").blur(function(event){

var idCard = $(this).val();

var checkFlag = new clsIDCard(idCard);

if( !checkFlag.IsValid() ){

alert("身份证错误");

return false;

}else{

alert( "出生于: " + checkFlag.GetBirthDate() +" 地区:" + checkFlag.GetLocal() +" sex:" + checkFlag.GetSex() );

}

});

*

*

* */