如何select-option提交后无刷新，为选中时的值

<script language="javascript">
 function selectlang(){
    var strval=$("#sel ").val();
    windows.location="Language/chooseLanguage/" +strval.tostring();
}
</script>

<select id ="sel" name="sel" onchange="selectlang()"> 
   <option value="0">English</option> 
   <option value="1" selected="selected" >中文</option>
</select>


.....

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.Mvc;
using System.Threading;
using CommonUtil;

namespace ApplicationExpertShare.Controllers
{
    public class LanguageController : Controller
    {
        //
        // GET: /English/

        public ActionResult chooseLanguage(string strval)
        {
            System.Globalization.CultureInfo languageCulture;
            if (strval=="0"){
                languageCulture= new System.Globalization.CultureInfo("en-US");
            }else{
                languageCulture= new System.Globalization.CultureInfo("zh-cn");
            }
            Session["Culture"] = languageCulture;
            return this.Redirect(this.Request.UrlReferrer.ToString());
        }

    }
}

怎么实现调chooseLanguage操作方法后，select中的值为选中时的值，而不是每次都刷新成初始值啊
多谢！ JavaScript --------------------编程问答-------------------- 请高手指教。。。。

补充：.NET技术 ,  .NET技术前瞻