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<head runat="server">
<title>ÎÞ±êÌâÒ³</title>
<script src="Ajax.js" type="text/javascript"></script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="Name" type="text" onblur="CheckName(this.value)"/>
<br />
<div id="TipForName"></div>
</div>
</form>
</body>
</html>
"Ajax.js"ÎļþÀïÃæµÄ´úÂë
var xmlHttp;//È«¾ÖXMLHttpResquest¶ÔÏó
//Õë¶Ô²»Í¬ä¯ÀÀÆ÷£¬»ñÈ¡XMLHttpRequest¶ÔÏó
function CreateXMLHttpRequest()
{
if(window.ActiveXObject)
{
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
else
{
xmlHttp=new XMLHttpResquest();
}
}
//µ¥»÷btnSayHelloʱµ÷ÓõÄJSº¯Êý
function CheckName(name)
{
//´´½¨XMLHTTPRquest¶ÔÏó
CreateXMLHttpRequest();
//Ö¸¶¨»Øµ÷º¯Êý
xmlHttp.onreadystatechange=HandleStateChange;
//´ò¿ªÇëÇó
// var s="Output.aspx?id="+name;
xmlHttp.open("POST","Output.aspx",true);
xmlHttp.setRequestHeader('Content-type','application/x-www-form-urlencoded');
//·¢ËÍÇëÇó
xmlHttp.send("id="+name);
}
//»Øµ÷º¯Êý
function HandleStateChange()
{
// alert(xmlHttp.readyState);
if(xmlHttp.readyState==4)
{
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