htmlhead /headbody input type="text" size="40" id="inid" / button onclick="idConfirm(inid)"aaa/button/body/html script type="text/javascript" function idConfirm(idTag){ var idCard=document.getElementById("inid").value; var ratioA=new Array(
<html>
<head>
</head>
<body>
<input type="text" size="40" id="inid" />
<button onclick="idConfirm(inid)">aaa</button>
</body>
</html>
<script type="text/javascript">
function idConfirm(idTag){
var idCard=document.getElementById("inid").value;
var ratioA=new Array(7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2);
var comfirm="10x98765432";
var sum=0;
var avg=0;
var k=0;
if(idCard.length===18){
for(i=0;i<17;i++){
k=parseInt(idCard.charAt(i))*ratioA[i];
sum+=k;
}
avg=sum%11;
idCard.charAt(17)==comfirm.charAt(avg) ? alert("true") : alert("false");
}
}
</script>