//身份證檢驗var vcity={ 11:"北京",12:"天津",13:"河北",14:"山西",15:"內蒙古",  21:"遼寧",22:"吉林",23:"黑龍江",31:"上海",32:"江蘇",  33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山東",41:"河南",  42:"湖北",43:"湖南",44:"廣東",45:"廣西",46:"海南",50:"重慶",  51:"四川",52:"貴州",53:"云南",54:"西藏",61:"陜西",62:"甘肅",  63:"青海",64:"寧夏",65:"新疆",71:"臺灣",81:"香港",82:"澳門",91:"國外"};function checkCard(card){  //是否為空  if(!card||!isCardNo(card)||!checkProvince(card)||!checkBirthday(card)||!checkParity(card)){    ZlyJs.divTip("請輸入正確的身份證號碼");    jQuery(".sf_list").focus();    return false;  }  return true;};//檢查號碼是否符合規范，包括長度，類型function isCardNo(card){  //身份證號碼為15位或者18位，15位時全為數字，18位前17位為數字，最后一位是校驗位，可能為數字或字符X  var reg = /(^/d{15}$)|(^/d{17}(/d|X)$)/;  if(reg.test(card) === false){    return false;  }  return true;};//取身份證前兩位,校驗省份function checkProvince(card){  var province = card.substr(0,2);  if(vcity[province] == undefined) {    return false;  }  return true;};//檢查生日是否正確function checkBirthday(card){  var len = card.length;  //身份證15位時，次序為省（3位）市（3位）年（2位）月（2位）日（2位）校驗位（3位），皆為數字  if(len == '15'){    var re_fifteen = /^(/d{6})(/d{2})(/d{2})(/d{2})(/d{3})$/;    var arr_data = card.match(re_fifteen);    var year = arr_data[2];    var month = arr_data[3];    var day = arr_data[4];    var birthday = new Date('19'+year+'/'+month+'/'+day);    return verifyBirthday('19'+year,month,day,birthday);  }  //身份證18位時，次序為省（3位）市（3位）年（4位）月（2位）日（2位）校驗位（4位），校驗位末尾可能為X  if(len == '18'){    var re_eighteen = /^(/d{6})(/d{4})(/d{2})(/d{2})(/d{3})([0-9]|X)$/;    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;};//校驗日期function verifyBirthday(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){    //判斷年份的范圍（3歲到100歲之間)    var time = now_year - year;    if(time >= 3 && time <= 100)    {      return true;    }    return false;  }  return false;};//校驗位的檢測function checkParity(card){  //15位轉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位轉18位身份證號function changeFivteenToEighteen(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;};if (!checkCard(code)) {  alert("請輸入正確的身份證號碼");  return false;}