,请大侠们帮帮忙,在ff下运行正常,ie下不行

求助在线等,请大侠们帮帮忙,在ff上运行正常,ie上不行
html文件

JScript code

<select name="pid" id="pid1">             <option value='2'>Loading</option></select><script type="text/javascript">function GetUrlParms()    {    var args=new Object();       var query=location.search.substring(1);//获取查询串       var pairs=query.split("&");//在逗号处断开       for(var i=0;i<pairs.length;i++)       {           var pos=pairs[i].indexOf('=');//查找name=value           if(pos==-1)   continue;//如果没有找到就跳过           var argname=pairs[i].substring(0,pos);//提取name           var value=pairs[i].substring(pos+1);//提取value           args[argname]=unescape(value);//存为属性       }    return args;}window.onload=function(){var args = new Object();args = GetUrlParms();var Pid=args["pid"];if(Pid==='undefined')selec(2);elseselec(Pid);}function selec(i){    if (window.XMLHttpRequest)          {// code for IE7+, Firefox, Chrome, Opera, Safari          xmlhttp=new XMLHttpRequest();          }    else          {// code for IE6, IE5         xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");        }    xmlhttp.onreadystatechange=function()        {            if (xmlhttp.readyState==4 && xmlhttp.status==200)               {document.getElementById("pid1").innerHTML=xmlhttp.responseText;alert(document.getElementById("pid1").innerHTML);}        }        //xmlhttp.setRequestHeader("Content-Type","text/xml;charset=gb2312");        //xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");            xmlhttp.open("get","inc/headSelect.asp?pid="+(i>=0?i:-1),true);    xmlhttp.send("");s}</script>

VBScript code

<%Response.Addheader "Content-Type","text/html; charset=gb2312" dim pidpid=request.QueryString("pid")    set rss=server.CreateObject("adodb.recordset")    sql="select id,title from data where parentid=1 order by id asc"    rss.open sql,conn,3,1    if not rss.eof and not rss.bof then        first=rss.GetRows()    else                end if    rss.close    set rss=nothing    dim ssss    'if pid=-1 then ssss=" selected=""selected"""'response.Write("<option value='-1'>查询所有</option>"&Chr(10))for i=0 to ubound(first,2)  if(first(0,i)=cint(pid)) then    ssss=" selected=""selected"""  else    ssss=""  end if  response.Write("<option value="""&first(0,i)&""" "&ssss&">"&first(1,i)&"</option>"&Chr(10))        next    %>

ie中运行结果是
<select>
第一条</option><option>diertiao</option><option>33333</option></select>

ff中运行是<select>
<option>第一条</option><option>diertiao</option><option>33333</option></select>
ie中不正常
方法中正常,要怎么处理呢

[解决办法]
xmlhttp.send("");s
这句后面多了一个s了。
[解决办法]

探讨

没有人吗??
很急的啊!!!!!!
谢谢 啊

[解决办法]
IE下select不支持修改innerHTML, 可以外面加个div,然后替换整个select的内容

参考：http://blog.csdn.net/grubbyfan/article/details/3743344