各位大侠求求大家帮助小弟一下。。小弟如果做不出来。工作就没了。。

情况是这样的 要用discuz！nt做社区论坛
然后要整合登陆
前台页面是gb2312编码模式
discuz是utf-8编码模式
现在情况就是英文帐号能登陆 但需要点第2次才能登陆上中文的不能登陆
求大侠给个修改方案解决中英文都能登陆
前台代码

<form id="Form1" method="post" name="form2" runat="server" >

  <div id="log" runat="server">

 

  用户名：

 <asp:TextBox ID="username" runat="server" style="height:20px;" value="用户/Email" size=12 maxLength=15></asp:TextBox>

  <script language="javascript" type="text/javascript">

      $('#username').focus(function () { try { if ($('#username').val() == '用户/Email') $('#username').val(''); } catch (e) { } });

      $('#username').blur(function () { try { if ($('#username').val() == '') $('#username').val('用户/Email'); } catch (e) { } });

               </script>

  密码：<asp:TextBox ID="password" runat="server" style="height:20px;"  size=12 maxLength=15 TextMode="Password"></asp:TextBox>

  <asp:Button

      ID="login" runat="server" Text="登陆" style="HEIGHT: 20px; CURSOR: hand" 

      align="absMiddle" onclick="login_Click" />

  



 

 

<input name="apikey" type="hidden" value="19a805310cf6cc301451cd79712ff30d">



<select name="question" id="question" change="changequestion();" tabindex="1003" style="display:none;">

						<option value="0">安全提问</option>

						<option onClick="loadselect_liset('question', 0, 'question','1',this.innerHTML, 1)" value="1" k_id="question">母亲的名字</option>

						<option onClick="loadselect_liset('question', 0, 'question','2',this.innerHTML, 2)" value="2" k_id="question">爷爷的名字</option>

						<option onClick="loadselect_liset('question', 0, 'question','3',this.innerHTML, 3)" value="3" k_id="question">父亲出生的城市</option>

						<option onClick="loadselect_liset('question', 0, 'question','4',this.innerHTML, 4)" value="4" k_id="question">您其中一位老师的名字</option>

						<option onClick="loadselect_liset('question', 0, 'question','5',this.innerHTML, 5)" value="5" k_id="question">您个人计算机的型号</option>

						<option onClick="loadselect_liset('question', 0, 'question','6',this.innerHTML, 6)" value="6" k_id="question">您最喜欢的餐馆名称</option>

						<option onClick="loadselect_liset('question', 0, 'question','7',this.innerHTML, 7)" value="7" k_id="question">驾驶执照的最后四位数字</option>

					</select>





 

    </div></from>

c#code

      protected void login_Click(object sender, EventArgs e)

        {

            username.Text = HttpUtility.UrlEncode(username.Text, Encoding.UTF8);

            password.Text = HttpUtility.UrlEncode(password.Text,Encoding.UTF8);

            string pa="username="+username.Text+"&password="+password.Text;

            byte[] bs=Encoding.UTF8.GetBytes(pa);

            //Form1.Action = "http://club.hldhouse.com/login.aspx?referer=default.aspx";

            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("http://club.hldhouse.com/login.aspx?referer=default.aspx");

            request.Method = "POST";

            request.ContentType = "application/x-www-form-urlencoded;charset=utf-8";

            request.ContentLength=bs.Length;

            

            using (Stream reqStream = request.GetRequestStream())

            {

                reqStream.Write(bs,0, bs.Length);

            }

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();

            

        }

就这部分代码大家帮我改下。。我实在是找不到门了。。。要失业了