我该怎么把<form name="form1"><input type="text" name="time_spent"...</form>的值传到CS里面去啊？

我要传<input type="text" name="time_spent"...的值
又要传<asp:textbox id="question_title"...的值<input type="text" id="time_spent" name="time_spent" size=7 onFocus="this.blur()">
写在<form enctype="multipart/form-data" runat="server">
里面不能显示,
现在写在<form name="form1">
里面可以显示，
但是现在的问题是：我该怎么把
<input type="text" id="time_spent" name="time_spent" size=7 onFocus="this.blur()">
的值传到CS里面去啊？<%@ Page Inherits="www.MyCodeBehind" Src="speak.cs"%> 
<HTML>
<HEAD>
<TITLE>我要發言</TITLE><script language="java-script">
<!--
function GetLocalIPAddress()
{
var obj = null;
var rslt = "";
try
{
obj = new ActiveXObject("rcbdyctl.Setting");
rslt = obj.GetIPAddress;
obj = null;
}catch(e)
{
}
document.form1.time_spent.value=rslt;
return rslt;
}
//-->
</script></HEAD><BODY onload="GetLocalIPAddress()"><form name="form1"><input type="text" id="time_spent" name="time_spent" size=7 onFocus="this.blur()"></form><form enctype="multipart/form-data" runat="server"><asp:textbox id="question_title" width="100%" runat="server" style="font-family:verdana;font-size:8pt;border:1px #DDE3EC solid"/><input type="button" id="Button1" value="確定" OnServerClick="Button1_Click" runat="server"></form></BODY>
</HTML>