innerHTML=http.responseText,结果总是一闪而过，咋办？
小妹写了个AJAX程序，jsp提交参数到java脚本后台，得到的查询结果返回给jsp，结果是有了，就是一闪而过。我把代码贴在下面，麻烦大虾们帮我看看~，多谢了！！
<!DOCTYPE html><html> <head> <title>search-Cp.html</title> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="this is my page"> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <!--<link rel="stylesheet" type="text/css" href="./styles.css">--> </head> <script type="text/javascript">var http_request = false;function send_request(url) {//初始化、指定处理函数、发送请求的函数 http_request = false; //开始初始化XMLHttpRequest对象 if(window.XMLHttpRequest) { //Mozilla 浏览器http_request = new XMLHttpRequest();if (http_request.overrideMimeType) {//设置MiME类别http_request.overrideMimeType('text/xml');} }else if (window.ActiveXObject) { // IE浏览器try{ http_request = new ActiveXObject("Msxml2.XMLHTTP");} catch (e) {try{ http_request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {}} }if (!http_request) { // 异常，创建对象实例失败window.alert("不能创建XMLHttpRequest对象实例.");return false;}http_request.onreadystatechange = processRequest;// 确定发送请求的方式和URL以及是否同步执行下段代码http_request.open("GET", url, true);http_request.send(null);}// 处理返回信息的函数function processRequest() {if (http_request.readyState == 4) { // 判断对象状态if (http_request.status == 200) { // 信息已经成功返回，开始处理信息var kk=document.getElementById("txtHint"); kk.style.display="block"; document.getElementById("txtHint").innerHTML=http_request.responseText; } else { //页面不正常 alert("您所请求的页面有异常。");}}}function search() { var f=document.form2; var element1 = f.element.value; if(element1=="") {window.alert("The user name can not be null!");f.element.focus();return false; }else {send_request('check.jsp?element='+element1); }}</script><body><form name="form2" method="post" action=""> <table width="100%" border="1"> <tr> <td width="200" height="25"><div align="right">请选择元素Element：</div></td> <td><input type="text" name="element" id="element" /></td> </tr> <tr> <td height="25"><div align="right">请选择相phase：</div></td> <td> </td> </tr> <tr> <td><div align="right">请输入温度：</div></td> <td><input type="text" name="T" id="T" /></td> </tr> </table> <table width="100%" border="1"> <tr> <td><div align="center"> <input type="reset" name="reset" id="reset" value="清空" /> <input type="submit" name="button" id="button" value="查询该元素热容参数" onclick="search()" /> </div></td> </tr> </table></form><br /><div id="txtHint" style="display:inline">查询结果将在此处列出 ...</div></body></html><%@ page language="java" import="java.util.*,java.sql.*" contentType="text/html; charset=gb2312" pageEncoding="utf-8"%><% String element= request.getParameter("element"); Class.forName("com.mysql.jdbc.Driver").newInstance();Connection conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/zhengshi2","root","zky"); Statement sql=conn.createStatement(); String SqlQuery="SELECT * FROM "+element; ResultSet rs=sql.executeQuery(SqlQuery);response.getWriter().write("QQ"); %>