prototype 中文参数乱码解决方案

request: function(url) {
this.url = url;
this.method = this.options.method;
this.encoding = this.options.encoding;
var params = this.options.parameters;
if(this.encoding.toUpperCase()=="UTF-8"){
encode=encodeURIComponent;
}else{
encode=escape;
}

var myAjax = new Ajax.Updater(
"dvContent",
url,
{
method: 'get',
parameters: pars,
encoding: 'gb2312'
});

var par;
par="param1="+"中文值"+"&param2="+"其他值";
var url="server.aspx";
var myAjx=new Ajax.Request(url,{method: get',parameters: encodeURI(par) ,onComplete: submit});

NameValueCollection nvc= HttpUtility.ParseQueryString(Request.Url.Query, Encoding.UTF8);
string title = (nvc["param1"] == null) ? "" : nvc["param1"];//接受中文

/**//*
Ajax企业名称是否存在检查
*/
function CheckCompanyExist()
{
var objtxtName=arguments[0];
var objBtnSubmit=arguments[1];
var objBtnCheck=arguments[2];
var currC_ID=arguments[3];
//alert($(arguments[0]).value);
var objtxtValue=$(arguments[0]).value;
$(objBtnSubmit).disabled=true;
if($F(objtxtName).trim())
{
$(objtxtName).disabled=!$(objtxtName).disabled;
var url="/tempAjaxService/";
var pars="module=CompanyExist&C_ID="+currC_ID+"&name="+objtxtValue;//$F(objtxtName);//objtxtValue;//
var myAjax = new Ajax.Request(url, {method: 'get', parameters: encodeURI(pars),onComplete : function() {
var txt = (''+arguments[0].responseText).evalJSON();
if(txt.Results==0||txt.Results==currC_ID)
{
//alert(''+arguments[0].responseText);
$(objBtnSubmit).value="提交我的企业信息";
$(objBtnSubmit).disabled=false;
alert("企业验证通过，您可以继续下一步操作");
}
else
{
$(objBtnSubmit).value="请先确认您的企业信息是否已存在本网中";
if(window.confirm('此企业已存在，想获得该公司管理权限，点击“确定”，了解详情！！\r\n如果不能打开窗口，请检查并取消您所用浏览器的“弹出窗口拦截”功能。\r\n或在浏览器地栏中输入以下地址\r\nhttps://www.jb51.net/ZhengMing.aspx'))
window.open ('https://www.jb51.net/ZhengMing.aspx','newwindow','height=160,width=800,top=0,left=0,toolbar=no,menubar=no,scrollbars=no,resizable=no,location=no,status=no');
}
$(objtxtName).disabled=!$(objtxtName).disabled;
}});
}

//Page.Response.Charset = "gb2312";
NameValueCollection nvc = System.Web.HttpUtility.ParseQueryString(Request.Url.Query, Encoding.UTF8);
Name=SQLParser.StringParse(nvc["name"]);