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JS ID Number _ ID number JS Verification

Source: Internet
Author: User
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Web Effects ID Number _ ID card number JS verification

<!doctype HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd" >
<html xmlns= "http://www.w3.org/1999/xhtml" >
<head>
<meta http-equiv= "Content-type" content= "HTML; charset=gb2312 "/>
<TITLE>JS ID Card number JS verification </title>

&lt;script type= "text/web Effects" &gt;


//alert (Isidcardno ("440781197007220512"));


if (Isidcardno ("440781197007220512")) {


alert ("Wrong ID number!") ");


}


//--ID Number verification-support for new X ID card


function Isidcardno (num)


{


var Factorarr = new Array (7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2,1);


var error;


var vararray = new Array ();


var intvalue;


var lngproduct = 0;


var intcheckdigit;


var intstrlen = num.length;


var idnumber = num;


//Initialize


if (Intstrlen!= &amp;&amp; (Intstrlen!= 18)) {


error = "Input ID number length is not correct!" ";


alert (Error);


//frmadduser.txtidcard.focus ();


return false;


    }   


//check and set value


for (i=0;i&lt;intstrlen;i++) {


Vararray[i] = Idnumber.charat (i);


if ((Vararray[i] &lt; ' 0 ' | | | vararray[i] &gt; ' 9 ') &amp;&amp; (i!= 17)) {


error = "Wrong ID number!";


alert (Error);


//frmadduser.txtidcard.focus ();


return false;


} else if (I &lt; 17) {


Vararray[i] = vararray[i]*factorarr[i];


        }


    }


if (Intstrlen = = 18) {


//check Date


var Date8 = idnumber.substring (6,14);


if (checkdate (date8) = = False) {


//error = "The date information in the ID card is incorrect!.";


//alert (Error);


return false;


        }       


//Calculate the sum of the products


for (i=0;i&lt;17;i++) {


lngproduct = lngproduct + vararray[i];


        }       


Calculate the check digit


intcheckdigit = 12-lngproduct% 11;


switch (intcheckdigit) {


Case 10:


intcheckdigit = ' x ';


break;


Case 11:


intcheckdigit = 0;


break;


Case 12:


intcheckdigit = 1;


break;


        }       


//Check last digit


if (vararray[17].touppercase ()!= intcheckdigit) {


//error = "id parity bit error!... Correct for: "+ Intcheckdigit +".


//alert (Error);


return false;


}


    }


else{//length is 15


//check Date


var date6 = idnumber.substring (6,12);


if (checkdate (date6) = = False) {


//alert ("ID date information is wrong!.");


return false;


        }


    }


//alert ("correct.");


return true;


}

function Checkdate (date)
{
return true;
}
</script>

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


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
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<body>
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</html>

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