仿12306身份验证

/**
* 一代身份证,二代身份证
* @param g
* @returns {boolean}
*/
function validateFirIdCard(idCard){
var f = 0;
var result;
var provinceCode={
11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙",
21:"辽宁",22:"吉林",23:"黑龙",
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"
};
if(idCard.length==15){
result = idCardUpdate(idCard);
}else{
result = idCard;
}

if(!/^\d{17}(\d|x)$/i.test(result)){
return false
}
result = result.replace(/x$/i,"a");

if(provinceCode[parseInt(result.substr(0,2))]==null){
return false
}
var dateStr = result.substr(6,4)+"-"+Number(result.substr(10,2))+"-"+Number(result.substr(12,2));
var date = new Date(dateStr.replace(/-/g,"/"));

if(dateStr!=(date.getFullYear()+"-"+(date.getMonth()+1)+"-"+date.getDate())){
return false
}
for(var b = 17;b >= 0;b--){
f += (Math.pow(2,b)%11)*parseInt(result.charAt(17-b),11)
}
if(f%11!=1){
return false;
}
return true;
}

/**
* 二代身份证
* @param idCard
* @returns {boolean}
*/
function validateSecIdCard(idCard){
var f=0;
var result = idCard;
var provinceCode={
11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙",
21:"辽宁",22:"吉林",23:"黑龙",
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"
};
if(!/^\d{17}(\d|x)$/i.test(result)){
return false
}
result = result.replace(/x$/i,"a");
if(provinceCode[parseInt(result.substr(0,2))]==null){
return false
}
var dateStr = result.substr(6,4)+"-"+Number(result.substr(10,2))+"-"+Number(result.substr(12,2));
var date = new Date(dateStr.replace(/-/g,"/"));
if(dateStr!=(date.getFullYear()+"-"+(date.getMonth()+1)+"-"+date.getDate())){
return false
}
for(var b=17;b>=0;b--){
f += (Math.pow(2,b)%11) * parseInt(result.charAt(17-b),11)
}
if(f%11!=1){
return false
}
return true
}

function idCardUpdate(idCard){
var result;
var fir_regex=/^(\d){15}$/;
if(fir_regex.test(idCard)){
var e=0;
//加权因子
var weight = new Array(7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2);
//校验码
var checkCode = new Array("1","0","X","9","8","7","6","5","4","3","2");

idCard = idCard.substr(0,6)+"19"+idCard.substr(6,idCard.length-6);

for(var c=0;c<idCard.length;c++){
e += parseInt(idCard.substr(c,1)) * weight[c]
}

idCard += checkCode[e%11];
result = idCard;
}else{
result="#";
}
return result;
}