Please help with my logon page

[MikeL91]

I tring to learn this from a book, but
I keep getting this error:

Response object error 'ASP 0156 : 80004005'
Header Error
/logon.asp, line 26

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

Here is my code from Logon.asp:
-----------------------------------------------------
<% @ Language = &quot;VBSCRIPT&quot;%>

<!-- Establish Variable -->
<% Dim oCONv, oRSu %>

<!-- Create Server Object -->
<% Set oCONv = Server.CreateObject(&quot;ADODB.Connection&quot %>

<!-- Open Server Object -->
<% oCONv.Open &quot;Driver={Microsoft Access Driver (*.mdb)};&quot; & _
&quot;DBQ=C:\AFPtest\Vault.MDB&quot; %>

<%
If Session(&quot;UserID&quot = &quot;&quot; or Request.Form(&quot;UserID&quot <> &quot;&quot; then
Session(&quot;UserID&quot = &quot;&quot;

Set oRSu = oCONv.Execute(&quot;SELECT tblUsers.UserID, tblUsers.Password FROM tblUsers &quot; &_
&quot;WHERE UserID = '&quot; & Request.Form(&quot;UserID&quot &_
&quot;' AND Password = '&quot; & Request.Form(&quot;Password&quot &_
&quot;' AND Date()-32<tblUsers.DAteSold&quot

if not oRSu.EOF then
Session(&quot;UserID&quot = oRSu(&quot;UserID&quot
Response.Redirect&quot;ok.htm&quot;
else
Response.Redirect &quot;sorry.htm&quot;
end if
end if
%>
-------------------------------------------------
I thank you in advance
-Mike

 

[JuanitaC]

Whenever you use a Response.Redirect, it is best to declare

<%Response.Buffer=True%>

at the top of your page, right under the Language=VBScript declaration.
The reason for this is that the server can't redirect to a new page if parts of the existing page have already been sent to the client. (That's what the http header message is all about.) The Response.Buffer allows you to get around this. As far as I understand (please correct me if I am wrong), this forces the server to wait until all processing is complete before sending the page to the client.

I hope this helps.