js验证身份证

/***********************************身份证验证*************************************************/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"           };//检查号码是否符合规范，包括长度，类型//isCardNo = function(card)function isCardNo(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Xvar 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})$/; var arr_data = card.match(re_fifteen);var year = arr_data[2];var month = arr_data[3];var day = arr_data[4];var birthday = new Date('19'+year+'/'+month+'/'+day);return verifyBirthday('19'+year,month,day,birthday);}//身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为Xif(len == '18'){var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/;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;};