JAVASCRIPT ASP Cookie str 长度的问题

[DoubleJiang]

在一下A.ASP中
<%@LANGUAGE="JAVASCRIPT" CODEPAGE="936"%>
<%
var w;
w = Request.Cookies("name");
Response.Write("w=" + w + " " + " len=" + w.length + "<br>");
%>
页面上看到的结果是
"w=b1 len=undefined"
怎样获得w字符串的长度

[s_liangchao1s]

var len

[DoubleJiang]

不行，修改为
<%
var w;
w = Request.Cookies("name");
var len = w.length;
Response.Write("w="+w+" len2="+len+"<br>");
%>
结果
w=b1 len2=undefined

[s_liangchao1s]

w.length(); ？？？asp忘了

[DoubleJiang]

var len = w.length();

错误类型：
Microsoft JScript 运行时错误 (0x800A01B6)
对象不支持此属性或方法
/lanch/Login.asp, 第 60 行

[DoubleJiang]

以下代码是ok的
<%
var w;
w = Request.Cookies("name");
w = "1234";
var len = w.length;
Response.Write("w="+w+" len2="+len+"<br>");
%>
结果
w=1234 len2=4

[lkh42002]

<%
var w;
w = Request.Cookies( "name ").toString();
var len = w.length;
Response.Write( "w= "+w+ " len2= "+len+ " <br> ");
%>

[DoubleJiang]

<%
var w;
w = Request.Cookies("name").toString();
var len = w.length;
Response.Write("w="+w+" len2="+len+"<br>");
%>
结果
错误类型：
Microsoft JScript 运行时错误 (0x800A01B6)
对象不支持此属性或方法
/lanch/Login.asp, 第 62 行

[DoubleJiang]

搞定
<%
var w;
w = String(Request.Cookies("name"));
var len = w.length;
Response.Write("w="+w+" len2="+len+"<br>");
%>

[DoubleJiang]

多谢，各位