以下为验证身份证号码的js代码,调用方式为:
checktheform(cardid)调用返回布尔类型结果。
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//TODO
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var vcity = {
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11 : "北京",
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12 : "天津",
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13 : "河北",
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14 : "山西",
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15 : "内蒙古",
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21 : "辽宁",
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22 : "吉林",
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23 : "黑龙江",
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31 : "上海",
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32 : "江苏",
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33 : "浙江",
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34 : "安徽",
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35 : "福建",
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36 : "江西",
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37 : "山东",
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41 : "河南",
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42 : "湖北",
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43 : "湖南",
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44 : "广东",
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45 : "广西",
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46 : "海南",
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50 : "重庆",
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51 : "四川",
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52 : "贵州",
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53 : "云南",
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54 : "西藏",
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61 : "陕西",
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62 : "甘肃",
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63 : "青海",
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64 : "宁夏",
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65 : "新疆",
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71 : "台湾",
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81 : "香港",
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82 : "澳门",
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91 : "国外"
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};
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checktheform = function(cardid) {
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//var card = document.getElementById(cardid).value;
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var card = cardid;
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//是否为空
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if (card === '') {
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//alert('请输入身份证号,身份证号不能为空');
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//document.getElementById(cardid).focus;
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return false;
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}
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//校验长度,类型
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if (isCardNo(card) === false) {
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//alert('您输入的身份证号码不正确,请重新输入');
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//document.getElementById(cardid).focus;
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return false;
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}
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//检查省份
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if (checkProvince(card) === false) {
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//alert('您输入的身份证号码不正确,请重新输入');
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//document.getElementById(cardid).focus;
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return false;
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}
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//校验生日
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if (checkBirthday(card) === false) {
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//alert('您输入的身份证号码生日不正确,请重新输入');
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//document.getElementById(cardid).focus();
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return false;
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}
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//检验位的检测
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if (checkParity(card) === false) {
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//alert('您的身份证校验位不正确,请重新输入');
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//document.getElementById(cardid).focus();
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return false;
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}
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return true;
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};
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//检查号码是否符合规范,包括长度,类型
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isCardNo = function(card) {
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//身份证号码为15位或者18位,15位时全为数字,18位前17位为数字,最后一位是校验位,可能为数字或字符X
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var reg = /(^\d{15}$)|(^\d{17}(\d|X)$)/;
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if (reg.test(card) === false) {
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return false;
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}
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return true;
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};
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//取身份证前两位,校验省份
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checkProvince = function(card) {
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var province = card.substr(0, 2);
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if (vcity[province] == undefined) {
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return false;
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}
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return true;
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};
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//检查生日是否正确
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checkBirthday = function(card) {
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var len = card.length;
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//身份证15位时,次序为省(3位)市(3位)年(2位)月(2位)日(2位)校验位(3位),皆为数字
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if (len == '15') {
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var re_fifteen = /^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/;
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var arr_data = card.match(re_fifteen);
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var year = arr_data[2];
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var month = arr_data[3];
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var day = arr_data[4];
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var birthday = new Date('19' + year + '/' + month + '/' + day);
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return verifyBirthday('19' + year, month, day, birthday);
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}
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//身份证18位时,次序为省(3位)市(3位)年(4位)月(2位)日(2位)校验位(4位),校验位末尾可能为X
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if (len == '18') {
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var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/;
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var arr_data = card.match(re_eighteen);
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var year = arr_data[2];
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var month = arr_data[3];
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var day = arr_data[4];
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var birthday = new Date(year + '/' + month + '/' + day);
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return verifyBirthday(year, month, day, birthday);
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}
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return false;
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};
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//校验日期
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verifyBirthday = function(year, month, day, birthday) {
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var now = new Date();
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var now_year = now.getFullYear();
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//年月日是否合理
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if (birthday.getFullYear() == year && (birthday.getMonth() + 1) == month
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&& birthday.getDate() == day) {
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//判断年份的范围(3岁到100岁之间)
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var time = now_year - year;
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if (time >= 3 && time <= 100) {
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return true;
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}
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return false;
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}
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return false;
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};
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//校验位的检测
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checkParity = function(card) {
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//15位转18位
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card = changeFivteenToEighteen(card);
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var len = card.length;
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if (len == '18') {
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var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8,
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4, 2);
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var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3',
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'2');
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var cardTemp = 0, i, valnum;
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for (i = 0; i < 17; i++) {
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cardTemp += card.substr(i, 1) * arrInt[i];
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}
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valnum = arrCh[cardTemp % 11];
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if (valnum == card.substr(17, 1)) {
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return true;
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}
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return false;
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}
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return false;
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};
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//15位转18位身份证号
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changeFivteenToEighteen = function(card) {
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if (card.length == '15') {
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var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8,
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4, 2);
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var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3',
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'2');
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var cardTemp = 0, i;
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card = card.substr(0, 6) + '19' + card.substr(6, card.length - 6);
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for (i = 0; i < 17; i++) {
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cardTemp += card.substr(i, 1) * arrInt[i];
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}
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card += arrCh[cardTemp % 11];
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return card;
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}
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return card;
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};
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