实例191.ajax密码验证.html

JSP网页中用到的JavaScript特效

<script language="JavaScript">
<!--
function f(){

var req =new ActiveXObject("Microsoft.XMLHTTP");
req.open("GET","191.asp?username="+username.value+"&pwd="+pwd.value, true);
req.onreadystatechange = function(){
　 if (req.readyState == 4) { 
　 if (req.status == 200) { 
msg.innerText = req.responseXML.documentElement.tagName; 
}
}
}
req.send(null);    // 发送请求
} 
//-->
</script>
标识：<input id=username type=text><br>
口令：<input id=pwd type=password><br>
<input type=button value="确定" onclick="javascript:f()">

<div id=msg></div>