用asp.net创建cookie,用javascript读不出cookie的值，求帮助！

[kavic_tan]

asp.net cs代码：
***************************************************************************************
protected void Page_Load(object sender, EventArgs e)
{
if(!IsPostBack)
{
HttpCookie myCookie = Request.Cookies["User"];
if (myCookie == null)
{
myCookie = new HttpCookie("User");
myCookie.Value = "测试用户";
Request.Cookies.Add(myCookie);
}
Label1.Text = "<script>show();</script>";
}
}

*****************************************************************************************
javascript代码：

function getCookieValue(cookieName)
{
var cookies=document.cookie;
var cookieIndex=cookies.indexOf(cookieName);

if(cookieIndex!=-1)
{
var cookieValueStart=cookieIndex+cookieName.length+1;
var cookieValueEnd=cookies.indexOf(";",cookieValueStart);

if(cookieValueEnd==-1)
{
cookieValueEnd=cookies.length;
}
var cookieValue=cookies.substring(cookieValueStart,cookieValueEnd);
}
return cookieValue;
}

function show()
{
window.alert("Usercookie的值为："+getCookieValue("User")+"\n");
}
*******************************************************************************************

输出结果是：Usercookie的值为:undefined
应该是编码问题，但是我在网上找了一些修改方案，还是解决不了，所以还是把原来的代码弄上来，希望大家可以帮我解决这个问题！！

[a184485789]

用这个试试

        function getCookie(objName) {//获取指定名称的cookie的值
            var arrStr = document.cookie.split("; ");
            for (var i = 0; i < arrStr.length; i++) {
                var temp = arrStr[i].split("=");
                if (temp[2] == objName) return unescape(temp[0]);
            }
        }