Problem with dual buttons on a form

Hello -

I have a single form with two buttons, currently named 'Button1' and 'Button2'. Both buttons lead through the default DW/php code to update database records (in MySQL), but I want the page redirect after updating to be determined by which button was pushed.

I am using $_GET['ButtonName'] to direct action based on which button was used to submit the form. Unfortunately, I can't seem to redirect the page where I want.

The code I am using is:

=======
if (isset($_GET['Button1'])) {
$updateGoTo = "edit_onepage.php";
} else {
$updateGoTo = "account.php";
}
========

If the user submits using Button1, I want them forwarded to "edit_onepage.php". If he submits using Button2, I want him forwarded to "account.php". Unfortunately, no matter how I fiddle with this code, the form is always forwarding to "account.php", regardless of which button is pushed.

Can anyone see what I am missing here? Thanks in advance for your advice.