prevent refresh in asp

Hi I have a page which submits an email (amongst other things). If the user refreshes the page, the email is sent again.

Is there a bit of asp script which will block any attempts to refresh a page?

Thanks

I'm assuming your page is something like this:

<%
' process submitted info
' ............. commands, send email, etc

' if processed submitted info, show confirmation
' .......... confirmation
%>


<form action="<%=Request.ServerVariables("SCRIPT_NAME")% >" method=post>[/b]




if so, do what I do:
instead of displaying the confirmation just after the processing, redirect to the same page (without the form data) and then display confirmation.
that way, even if they user refreshes the page, no data has been submitted.

example:

<%
If Request.QueryString("action")="submit" Then
' process submitted info
' ............. commands, send email, etc
response.redirect "?action=confirm"
End If

If Request.QueryString("action")="confirm" Then
' if processed submitted info, show confirmation
' .......... confirmation
Response.End
End If
%>


<form action="?action=submit" method=post>

aha!
good thinking. I'll give it a go.

Cheers.