help me pls

I write a script for dealing with a form and the algorithem will look like this if (isset($somthing)) { the form is here and user input it } if($filter_in_the_form == 'something) { print the 1st } elseif($all_condition_done == 'OK') { print the 2nd } else { print nothing done } when i run it the first condition are done,....OK then i input my data in the form then the $filter_in_the_form checked up something and so another form then i input the data.....after i submit it should print out all the data then I input as a result but the thinks happen is .... then result of my input data print out with the 2nd form how do I print out the data with out showing the 2nd form ??? in perl when i used cgi i just define cgi->new Thanks in Advance Yamin Prabudy