ajax乱码问题（仿百度搜索页面），在线求解答，大侠们有空速度帮忙
这种乱码如何解决！！！我代码都贴出来：
<?php<br>//require('common.inc.php');<br>//require('config.inc.php');<br>mysql_connect('localhost', 'root' ,'123456');<br>mysql_select_db("hxyjw_20100416");<br>mysql_query("SET NAMES GBK");//防止数据库交互时乱码<br>header('Content-Type:text/html;charset=gbk');<br><br>$queryString = $_POST['queryString'] ;<br><br>if(strlen($queryString) >0) {<br>$sql= "SELECT username FROM phpcms_member WHERE username LIKE '".$queryString."%' LIMIT 0,15";<br>echo $sql;<br>$query = mysql_query($sql);<br>while ($result = mysql_fetch_array($query))<br>{<br> $value=$result['username'];<br> echo '<li onClick="fill(\''.$value.'\');">'.$value.'</li>';<br>}<br><br>}<br>?><br>htm:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br><html xmlns="http://www.w3.org/1999/xhtml"><br><head><br><meta http-equiv="Content-Type" content="text/html; charset=gb2312"/><br><title>Ajax搜索功能</title><br><script type="text/javascript" src="/js/jquery-1.3.1.js"></script><br><script type="text/javascript"><br>function lookup(inputString) {<br>if(inputString.length == 0) {<br>// Hide the suggestion box.<br>$('#suggestions').hide();<br>} else {<br>$.post("rpc.php", {queryString: ""+inputString+""}, function(data){<br>if(data.length >0) {<br>$('#suggestions').show();<br>$('#autoSuggestionsList').html(data);<br>}<br>});<br>}<br>} // lookup<br>function fill(thisValue) {<br>$('#inputString').val(thisValue);<br>setTimeout("$('#suggestions').hide();", 200);<br>}<br></script><br><style type="text/css"><br>body {<br>font-family: Helvetica;<br>font-size: 11px;<br>color: #000;<br>}<br>h3 {<br>margin: 0px;<br>padding: 0px;<br>}<br>.suggestionsBox {<br>position: relative;<br>left: 30px;<br>margin: 10px 0px 0px 0px;<br>width: 200px;<br>background-color: #212412427;<br>-moz-border-radius: 7px;<br>-webkit-border-radius: 7px;<br>border: 2px solid #000;<br>color: #fff;<br>}<br>.suggestionList {<br>margin: 0px;<br>padding: 0px;<br>}<br>.suggestionList li {<br>margin: 0px 0px 3px 0px;<br>padding: 3px;<br>cursor: pointer;<div class="clear">
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