<!DOCTYPE HTML>
<html>
<head>
<script type="text/javascript">
function getnum(){
var mynode=document.getElementsByName("myt");
document.getElementById("mylen").innerHTML=mynode.length;
document.getElementById("mylen1").innetHTML=mynode[0];
}
</script>
</head>
<body>
<input name="myt" type="text" value="1">
<input name="myt" type="text" value="2">
<input name="myt" type="text" value="3">
<input name="myt" type="text" value="4">
<input name="myt" type="text" value="5">
<input name="myt" type="text" value="6">
<br />
<input type="button" onclick="getnum()" value="看看有几项？" />
<p>
<span>数量：</span><span id="mylen"></span>
<span>第一个是：</span><span id="mylen1"></span>
</p>
</body>
</html>
