How do you acheive this in ASP.NET?

[jeba]

Hi there!

What is the equivlent of the following ASP code in ASP.NET?
please help.

Sub ValidateValue()
      if Condition=False then
     %> 
         <SCRIPT LANGUAGE=javascript> 
        <!-- 
              alert("I want to display a msg here & then redirect!"); 
             //otherwise I would have used Response.Redirect("mainpage.aspx")
            document.location.href="mainpage.asp"; 
        //--> 
       </SCRIPT> 
     <% 
          Response.End 
     end if
End sub

[pvb]

Here's one way, kind of a "hacky" way of doin it but it works.
Code Behind Code:

Protected MyConditional As Literal
Private Sub Page_Load(ByVal sender As System.Object, _
                      ByVal e As System.EventArgs) Handles MyBase.Load
    'Put user code to initialize the page here
    Dim condition As Boolean = False
    If Not condition Then
        MyConditional.Visible = True
    End If
End Sub

Webform code(just the Literal control part):

<asp:Literal 
	Runat="server"
	ID="MyConditional" 
	Visible="False"
	Text="<script language='javascript'>alert('some message');location.href='http://www.microsoft.com/';</script>" />