Although I'm sure the "No" response you recieved above solved your problem...(note the sarcasm), I'll help you out.
If you want say two forms on one page and only take the values from one, you just name the submit button a certain name and then check that in your recieving script.
ie.
if($_POST['InputFormOne']){
//Do whatever you want with $_POST['one'] variable
}
elseif($_POST['InputFormTwo']){
//Do whatever you want with $_POST['two'] variable
}
<form method=post action=<?php echo $PHP_SELF ?>>
<input type=hidden name=one value='Peter Pan'>
<input type=submit name="InputFormOne" value="Input Form One">
<form method=post action=<?php echo $PHP_SELF ?>>
<input type=hidden name=two value=Wendy>
<input type=submit name="InputFormTwo" value="Input Form Two">
Hope that helps...I know it's not as concise as "No" but probably more useful.