1 window.checkIdcard = function (idcard) {
2 var errors = new Array(
3 "yes",
4 "请检查输入的证件号码是否正确", //"身份证号码位数不对!",
5 "请检查输入的证件号码是否正确", //"身份证号码出生日期超出范围或含有非法字符!",
6 "请检查输入的证件号码是否正确", //"身份证号码校验错误!",
7 "请检查输入的证件号码是否正确" //"身份证地区非法!"
8 );
9
10 var area = { 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" }
11 var y, jym;
12 var s, m;
13 var idcardArray = new Array();
14 idcard = idcard.replace(/(^\s*)|(\s*$)/g, "");
15
16 idcardArray = idcard.split("");
17 //地区检验
18 if (area[parseInt(idcard.substr(0, 2))] == null) return errors[4];
19 //身份号码位数及格式检验
20 var ereg;
21 switch (idcard.length) {
22 case 15:
23 if ((parseInt(idcard.substr(6, 2)) + 1900) % 4 == 0 || ((parseInt(idcard.substr(6, 2)) + 1900) % 100 == 0 && (parseInt(idcard.substr(6, 2)) + 1900) % 4 == 0)) {
24 ereg = /^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$/; //测试出生日期的合法性
25 } else {
26 ereg = /^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$/; //测试出生日期的合法性
27 }
28 if (ereg.test(idcard)) return errors[0];
29 else return errors[2];
30 case 18:
31 //18位身份号码检测
32 //出生日期的合法性检查
33 //闰年月日:((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))
34 //平年月日:((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))
35 if (parseInt(idcard.substr(6, 4)) % 4 == 0 || (parseInt(idcard.substr(6, 4)) % 100 == 0 && parseInt(idcard.substr(6, 4)) % 4 == 0)) {
36 ereg = /^[1-9][0-9]{5}(19|20)[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$/; //闰年出生日期的合法性正则表达式
37 } else {
38 ereg = /^[1-9][0-9]{5}(19|20)[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$/; //平年出生日期的合法性正则表达式
39 }
40 if (ereg.test(idcard)) {//测试出生日期的合法性
41 //计算校验位
42 s = (parseInt(idcardArray[0]) + parseInt(idcardArray[10])) * 7
43 + (parseInt(idcardArray[1]) + parseInt(idcardArray[11])) * 9
44 + (parseInt(idcardArray[2]) + parseInt(idcardArray[12])) * 10
45 + (parseInt(idcardArray[3]) + parseInt(idcardArray[13])) * 5
46 + (parseInt(idcardArray[4]) + parseInt(idcardArray[14])) * 8
47 + (parseInt(idcardArray[5]) + parseInt(idcardArray[15])) * 4
48 + (parseInt(idcardArray[6]) + parseInt(idcardArray[16])) * 2
49 + parseInt(idcardArray[7]) * 1
50 + parseInt(idcardArray[8]) * 6
51 + parseInt(idcardArray[9]) * 3;
52 y = s % 11;
53 m = "F";
54 jym = "10X98765432";
55 m = jym.substr(y, 1); //判断校验位
56 if (m == idcardArray[17]) return errors[0]; //检测ID的校验位
57 else return errors[3];
58 }
59 else return errors[2];
60 default:
61 return errors[1];
62 }
63 }
