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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ajax_3 </title>
</head>
<body>
<input type="text" id="username" value="" />
<div id="message"> </div>
<input type="button" name="submit" onclick="getMessage()" value="提交" />
</body>
<script language="javascript">
function getMessage(){
var xmlHttp;
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
username=document.getElementById("username").value;
//alert(document.getElementById("username").value);
xmlHttp.open("GET","12_3.php?name="+username,true);
xmlHttp.onreadystatechange=handl_r;
xmlHttp.send(null);
}
function handl_r(){
if(xmlHttp.readyState==4){
if(xmlHttp.status==200){
result=xmlHttp.responseText;
document.getElementById("message").innerHTML=" <b> <u>"+result+" </u> </b>";
}else{
alert("error");
}
}
}
</script>
</html>