Sort of dumb question on multi-page output?

Gentlemen;

I have a mental block here so I am hoping for some guidance and
ideas/suggestions with this one?

I have a php program that processes a form (credit card) on a secured site
(SSL) and while communicating with the card processor in the background it
output a "please wait blah blah" page also on the secured site. When the
return from the card processor arrives based on the response either the
original form is redisplayed w/errors OR a different page is displayed from
another site (non-secured).

What I am experiencing is that my second page output is FOLLOWING my please
wait page output and NOT replacing it.

So, my concept question is... how can I actually REPLACE the please wait
page with the output of the send page's output no matter where it comes
from?

Thank you,

Bob

bobmct wrote:
> So, my concept question is... how can I actually REPLACE the please wait
> page with the output of the send page's output no matter where it comes
> from?

I think you can only do this with periodic refresh's or perhaps some
javascript. Would love to be proven wrong.

I've never seen it done any other way.