根据身份证号码获取年龄

function getAgeFromCardId(dataVal) {
var myDate = new Date();
var month = myDate.getMonth() + 1;
var day = myDate.getDate();
var age = myDate.getFullYear() - dataVal.substring(6, 10) - 1;
if ((dataVal.substring(10, 12) < month) || (dataVal.substring(10, 12) == month && dataVal.substring(12, 14) <= day)) {
age++
}
return age;
}