Copy Code code as follows:
The HTML page should have an input input box with ID Identity_card, a ipmessage ID error or the correct prompt message where
<script>
ID Card Verification
$ (document). Ready (function () {
$ ("#identity_card"). Change (function () {
var idcard =$ (This). Val ();
Checkdate (Idcard);
});
});
Id
function Checkdate (idcard) {
var socialno = Idcard;
if (Socialno = "")
{
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert ("Enter ID number cannot be empty!");
return (false);
}
if (socialno.length!= && socialno.length!= 18)
{
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert ("Input ID number is not in the correct format!");
return (false);
}
var area={11: "Beijing", 12: "Tianjin", 13: "Hebei", 14: "Shanxi", 15: "Inner Mongolia", 21: "Liaoning", 22: "Jilin", 23: "Heilongjiang", 31: "Shanghai", 32: "Jiangsu", 33: "Zhejiang", 34: "Anhui", 35: "Fujian", 36: "Jiangxi", 37: "Shandong", 41: "Henan", 42: "Hubei", 43: "Hunan", 44: "Guangdong", 45: "Guangxi", 46: "Hainan", 50: "Chongqing", 51: "Sichuan", 52: "Guizhou", 53: "Yunnan", 54: "Tibet", 61: "Shaanxi", 62: "Gansu", 63: "Qinghai", 64: "Ningxia", 65: "Xinjiang", 71: "Taiwan", 81: "Hong Kong", 82: "Macao", 91: "Foreign"};
if (Area[parseint (Socialno.substr (0,2))]==null) {
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert ("Incorrect identity card number (illegal area)!");
return (false);
}
if (socialno.length = 15)
{
Pattern=/^\d{15}$/;
if (Pattern.exec (Socialno) ==null) {
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert ("15-digit ID number must be number!") ");
return (false);
}
var birth = parseint ("n" + socialno.substr (6,2));
var month = Socialno.substr (8,2);
var day = parseint (Socialno.substr (10,2));
Switch (month) {
Case ' 01 ':
Case ' 03 ':
Case ' 05 ':
Case ' 07 ':
Case ' 08 ':
Case ' 10 ':
Case ' 12 ':
if (day>31) {
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert (' Input ID number not formatted correctly! ');
return false;
}
Break
Case ' 04 ':
Case ' 06 ':
Case ' 09 ':
Case ' 11 ':
if (day>30) {
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert (' Input ID number not formatted correctly! ');
return false;
}
Break
Case ' 02 ':
if (birth% 4 = 0 && Birth%!= 0) | | Birth% 400 = 0) {
if (day>29) {
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert (' Input ID number not formatted correctly! ');
return false;
}
} else {
if (day>28) {
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert (' Input ID number not formatted correctly! ');
return false;
}
}
Break
Default
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert (' Input ID number not formatted correctly! ');
return false;
}
var nowyear = new Date (). getyear ();
if (Nowyear-parseint (birth) <15 | | nowyear-parseint (BIRTH) >100) {
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert (' Input ID number not formatted correctly! ');
return false;
}
$ (' #ipmessage '). HTML (' Pass! ');
return (true);
}
var Wi = new Array (
7,9,10,5,8,4,2,1,6,
3,7,9,10,5,8,4,2,1
);
var lsum = 0;
var nnum = 0;
var nchecksum = 0;
for (i = 0; i < ++i)
{
if (Socialno.charat (i) < ' 0 ' | | socialno.charat (i) > ' 9 ')
{
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert ("Input ID number is not in the correct format!");
return (false);
}
Else
{
Nnum = Socialno.charat (i)-' 0 ';
}
Lsum + + nnum * Wi[i];
}
if (socialno.charat) = = ' X ' | | Socialno.charat (+) = ' x ')
{
Lsum + = 10*wi[17];
}
else if (Socialno.charat < ' 0 ' | | socialno.charat () > ' 9 ')
{
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert ("Input ID number is not in the correct format!");
return (false);
}
Else
{
Lsum + + (socialno.charat)-' 0 ') * wi[17];
}
if ((lsum% 11) = = 1)
{
$ (' #ipmessage '). HTML (' Pass! ');
return true;
}
Else
{
$ (' #ipmessage '). HTML (' input ID number format incorrect, must be 15 to 18-bit ID number ');
Alert ("Input ID number is not in the correct format!");
return (false);
}
}
</script>
