'email'                 => $_POST['email'],
        'logo'                  => $_POST['logo'],
        'footer'                => $_POST['footer'],
        'paypal_business_name'  => $_POST['paypal_business_name'],
        'paypal_notify_url'     => $_POST['paypal_notify_url'],
        'paypal_return_url'     => $_POST['paypal_return_url'],
        'eway_customer_id'      => $_POST['eway_customer_id'], 
        'notes'                 => $_POST['notes'], 
        'custom_field1'         => $_POST['custom_field1'],
        'custom_field2'         => $_POST['custom_field2'],
        'custom_field3'         => $_POST['custom_field3'],
        'custom_field4'         => $_POST['custom_field4'],
        'enabled'               => $_POST['enabled']
    );
    
	$saved = $SI_BILLER->insert($biller_data);
}

if ($op === 'edit_biller' ) {
    if (isset($_POST['save_biller']) && isset($_GET['id']) && is_numeric($_GET['id'])) {
        $biller_data = array(
            'name'                  => $_POST['name'], 
            'tax_id'                => $_POST['tax_id'], 
            'street_address'        => $_POST['street_address'],
            'street_address2'       => $_POST['street_address2'],
            'city'                  => $_POST['city'],
            'state'                 => $_POST['state'], 
            'zip_code'              => $_POST['zip_code'],
            'country'               => $_POST['country'],
            'phone'                 => $_POST['phone'], 
            'mobile_phone'          => $_POST['mobile_phone'],