js印证身份证

js验证身份证

/*Author:yufulongBlog:http://www.xiaoxiaozi.com*/var vcity = {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"            };checkCard = function(card) {    //是否为空    if(card === '') {        return false;    }    //校验长度，类型    if(isCardNo(card) === false) {        return false;    }    //检查省份    if(checkProvince(card) === false) {        return false;    }    //校验生日    if(checkBirthday(card) === false) {        return false;    }    //检验位的检测    if(checkParity(card) === false)    {        return false;    }    return true;};//检查号码是否符合规范，包括长度，类型isCardNo = function(card) {    //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    var reg = /(^\d{15}$)|(^\d{17}(\d|X)$)/;    if(reg.test(card) === false) {        return false;    }    return true;};//取身份证前两位,校验省份checkProvince = function(card) {    var province = card.substr(0,2);    if(vcity[province] == undefined) {        return false;    }    return true;};//检查生日是否正确checkBirthday = function(card) {    var len = card.length;    //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    if(len == '15') {        var re_fifteen = /^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/;         var arr_data = card.match(re_fifteen);        var year = arr_data[2];        var month = arr_data[3];        var day = arr_data[4];        var birthday = new Date('19'+year+'/'+month+'/'+day);        return verifyBirthday('19'+year,month,day,birthday);    }    //身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X    if(len == '18') {        var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/;        var arr_data = card.match(re_eighteen);        var year = arr_data[2];        var month = arr_data[3];        var day = arr_data[4];        var birthday = new Date(year+'/'+month+'/'+day);        return verifyBirthday(year,month,day,birthday);    }    return false;};//校验日期verifyBirthday = function(year,month,day,birthday) {    var now = new Date();    var now_year = now.getFullYear();    //年月日是否合理    if(birthday.getFullYear() == year && (birthday.getMonth() + 1) == month && birthday.getDate() == day) {        //判断年份的范围（3岁到100岁之间)        var time = now_year - year;        if(time >= 3 && time <= 100) {            return true;        }        return false;    }    return false;};//校验位的检测checkParity = function(card) {    //15位转18位    card = changeFivteenToEighteen(card);    var len = card.length;    if(len == '18') {        var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);         var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');         var cardTemp = 0, i, valnum;         for(i = 0; i < 17; i ++) {             cardTemp += card.substr(i, 1) * arrInt[i];         }         valnum = arrCh[cardTemp % 11];         if (valnum == card.substr(17, 1)) {            return true;        }        return false;    }    return false;};//15位转18位身份证号changeFivteenToEighteen = function(card) {    if(card.length == '15') {        var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);         var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');         var cardTemp = 0, i;           card = card.substr(0, 6) + '19' + card.substr(6, card.length - 6);        for(i = 0; i < 17; i ++) {             cardTemp += card.substr(i, 1) * arrInt[i];         }         card += arrCh[cardTemp % 11];         return card;    }    return card;};