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 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript">
    var http_request=false;
    function testID (username){        
        if(window.XMLHttpRequest){//mozilla
            http_request=new XMLHttpRequest();
        }else{
            http_request=new ActiveXObject("Microsoft.XMLHTTP");
        }
        http_request.onreadystatechange = processRequest;
        http_request.open("POST","../testID",true);//ĬÈÏÎªÕæÊ±²»¼ÌÐøÖ´ÐÐÏÂÃæµÄ´úÂë
        http_request.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
        http_request.send("username="+username);
    }
    // ´¦Àí·µ»ØÐÅÏ¢µÄº¯Êý
    function processRequest() {
         if (http_request.readyState == 4) {//   Åж϶ÔÏó״̬
               if (http_request.status == 200) {//  ÐÅÏ¢ÒѾ­³É¹¦·µ»Ø£¬¿ªÊ¼´¦ÀíÐÅÏ¢
                    alert(http_request.responseText);
               } else {//Ò³Ãæ²»Õý³£
             &nbs


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HTML source:
<p>
Name:
<input type="text" id="demoName"/>
<input value="Send" type="button" onclick="update()"/>
<br/>
Reply: <span id="demoReply"></span>
</p>
Javascript source:
var services = new dojox.rpc.Service({
target:"../dwr/j ......

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