showModalDialog怎么取不到中文参数?

Question

var Subjectname="國内銷售"
var rv=window.showModalDialog("OpenMainincome.aspx？Groupname="+Groupname+"","","dialogHeight:190px;dialogWidth:400px;center:yes;help:no;resizable:no;status:0")
子页面在aspx文件中:
<%Dim Subjectname As String = Request("Subjectname") %>，为什么response.write(Subjectname )的值为N.
请教showModalDialog怎样传递参数和怎样取参数比较好，给个Demo看看．谢谢

Answer 1

OpenMainincome.aspx？Groupname="+Groupname-->OpenMainincome.aspx？Groupname="+eval(Subjectname)

Answer 2

var Subjectname="國内銷售"
var rv=window.showModalDialog("OpenMainincome.aspx？Groupname="+escape(Subjectname)+"","","dialogHeight:190px;dialogWidth:400px;center:yes;help:no;resizable:no;status:0")

Answer 3

Dim Subjectname As String = Request("Subjectname")
-->
Dim Subjectname As String = Request("Groupname")

Answer 4

var Subjectname="國内銷售"
var rv=window.showModalDialog("OpenMainincome.asp?Groupname="+escape(Subjectname),"","dialogHeight:190px;dialogWidth:400px;center:yes;help:no;resizable:no;status:0")
你的错误是：？号得用英文的号，还有变量名写错了
接收页面代码如下：
<% = Request.QueryString("Groupname")%>