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function changeChoose(selectId,type){
      $("id").innerHTML="";
      var param="id="+$("sId").value+"&lId="+$("lId").value+"&other=allfromHistory";
      var url = "/sUtil.do?chooseType="+type;
      var ajaxReq = new XHR({'method':'post','autoCancel':'true',
                        onSuccess:function(response){fillElement(response,selectId,true);},
                        onFailure:function(){}
                        });
      ajaxReq.send(url,param);
      ajaxReq = null;
    }
${"id"}Ï൱ÓÚdocument.getElementById("id")
var param = "..."; //¶¨ÒåurlµÄ²ÎÊý
var url = "..";//¶¨Òåurl£¬ºóÃæ¸úÉϲÎÊý¡£
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var ajaxReq = new XHR({'method':'post','autoCancel':'true', 
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package com.ljc.rank.ajax;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
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protected void Button1_Click(object sender, EventArgs e)
  {
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{ "success ":true}

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{ "success ":fals
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{
   
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