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<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>AjaxÒì²½µ÷ÓÃ</title>
</head>
<body>
    <div style="background-color:Yellow" id="mytext">AjaxÒì²½µ÷ÓÃ
</div>
    <input type="button" value="¸üÐÂ" onclick="startHTTP()" />
</body>
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   if(window.ActiveXObject)//ieä¯ÀÀÆ÷
     {
        XMLHttpReq=new ActiveXObject("Microsoft.XMLHTTP");
     }
   else  if(window.XMLHttpRequest){//ÆäËûä¯ÀÀÆ÷
        XMLHttpReq=new XMLHttpRequest();
   }
}


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Ajax½éÉÜ XMLHttpRequest

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ajaxÓëjQuery·½·¨

ajax.asp
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ajax.html
<script type="text/javascript">
function Ajax(){
var xmlHttp=null;
if(window.ActiveXObject){
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xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
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