Directing form to different handlers?

Hi all. I realize this is more an HTML question than PHP but I'm sure someone here can help. I have several forms with lots (dozens) of text inputs. If the user presses the "Update" button I want the form handled by "update.php" but if they press "Delete" it needs to be handled by "delete.php" or "add.php" and so-on depending on the button they press. But when establishing the form I can only have <form method="POST" action="delete.php"> or "add.php" or whatever. Is there a way to direct the content of the form do a different handler depending on the button? I know I can use javascript to direct to a constructed URL and append ?name=smith&address=hishouse&telephone=28376.....and so on but this is not practical when there are dozens of entries....the URL becomes massive. I prefer to use "POST" and then use PHP to extract the POST array. Any ideas? Much appreciated. Angus