Copy Code code as follows:
<script>
Authentication ID Number method
var test=function (Idcard) {
var errors=new Array ("Verify through!", "ID card number is not correct!", "ID number date of birth out of range or contain illegal characters!", "ID card number Error!", "Identity card area illegal!");
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",: "Xinjiang", 71: "Taiwan", 81: "Hong Kong", 82: "Macao", 91: "Foreign"}
var Idcard,y,jym;
var s,m;
var idcard_array = new Array ();
Idcard_array = Idcard.split ("");
if (Area[parseint (Idcard.substr (0,2))]==null) return errors[4];
Switch (idcard.length) {
Case 15:
if ((parseint (Idcard.substr (6,2)) +1900% 4 = 0 | | ((parseint (Idcard.substr (6,2)) +1900% = = 0 && (parseint (Idcard.substr (6,2)) +1900)% 4 = 0)) {
Ereg =/^[1-9][0-9]{5}[0-9]{2} (01|03|05|07|08|10|12) (0[1-9]|[ 1-2][0-9]|3[0-1]) | (04|06|09|11) (0[1-9]| [1-2] [0-9]|30) |02 (0[1-9]|[ 1-2][0-9]) [0-9]{3}$/;//Test Birth date legality
}
else{
Ereg =/^[1-9][0-9]{5}[0-9]{2} (01|03|05|07|08|10|12) (0[1-9]|[ 1-2][0-9]|3[0-1]) | (04|06|09|11) (0[1-9]| [1-2] [0-9]|30) |02 (0[1-9]|1[0-9]|2[0-8]) [0-9]{3}$/;//test date of birth legality
}
if (Ereg.test (Idcard))
return errors[0];
Else
return errors[2];
Break
Case 18:
if (parseint (Idcard.substr (6,4))% 4 = 0 | | (parseint (Idcard.substr (6,4))% = = 0 && parseint (idcard.substr (6,4))%4 = = 0)) {
Ereg =/^[1-9][0-9]{5}19[0-9]{2} (01|03|05|07|08|10|12) (0[1-9]|[ 1-2][0-9]|3[0-1]) | (04|06|09|11) (0[1-9]| [1-2] [0-9]|30) |02 (0[1-9]|[ 1-2][0-9]) [0-9]{3}[0-9xx]$/;//validity of a leap year birth date regular expression
}
else{
Ereg =/^[1-9][0-9]{5}19[0-9]{2} (01|03|05|07|08|10|12) (0[1-9]|[ 1-2][0-9]|3[0-1]) | (04|06|09|11) (0[1-9]| [1-2] [0-9]|30) |02 (0[1-9]|1[0-9]|2[0-8]) [0-9]{3}[0-9xx]$/;//excepting the legality of the date of birth regular expression
}
if (Ereg.test (Idcard)) {
S = (parseint (idcard_array[0]) + parseint (idcard_array[10])) * 7 + (parseint (idcard_array[1)) + parseint (idcard_array[11 ]) * 9 + (parseint (idcard_array[2]) + parseint (idcard_array[12))) * + (parseint (idcard_array[3)) + parseint (Idcard_arr AY[13])) * 5 + (parseint (idcard_array[4)) + parseint (idcard_array[14])) * 8 + (parseint (idcard_array[5)) + parseint (idcard _ARRAY[15])) * 4 + (parseint (idcard_array[6)) + parseint (idcard_array[16])) * 2 + parseint (idcard_array[7)) * 1 + parseInt (Idcard_array[8]) * 6 + parseint (idcard_array[9]) * 3;
Y = S% 11;
M = "F";
Jym = "10x98765432";
M = Jym.substr (y,1);
if (M = = idcard_array[17])
return errors[0];
Else
return errors[3];
}
Else
return errors[2];
Break
Default
return errors[1];
Break
}
}
Test code
var theid=prompt ("Please enter the ID number", "15-bit or 18-bit");
if (theid!= "") {
document.write (Test (Theid));
}else{
Theid=prompt ("Please enter ID number", "15 or 18 digits");
}
</script>
