I just wanted to ask a question on cgi if you can help us here?

We have a form with an input button that when clicked call an action on a
cgi file on the server.
It normally calls for a file as follows:

$showme = "$ENV{DOCUMENT_ROOT}/show/showme.html";

it works perfect and we have no problem with that.

The problem is that it is now called from an html in a frame and we want
showme.html to come in that frame again

that is the same concept as in html we use target="_self" or blank or top

can you guide us?