I just started reading tutorials on ASP...can someone tell me what's wrong with the following code??

PHP Code:
<HTML>
<
HEAD>
<
Title>Example</title>
</
HEAD>
<
BODY>

<%  
    
Response.Cookies("Colour") = "Red" 
    
Dim Back
    Back 
Request.Cookies("Colour")
    
Response.Write("<font color=" Back ">Hello</font>")
%>
</
BODY>
</
HTML

I get the following error:
Response object error 'ASP 0156 : 80004005'

Header Error

/MyWeb/Test.asp, line 8

The HTTP headers are already written to the client browser. Any HTTP header modifications must be made before writing page content.




Thanks.