RE: need a quick help with an order total module

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http://forums.oscommerce.com/viewtopic.php?p=163164#163164
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Joshua,

Congratulatio, you found a bug in the discount coupon code. The code should actually be 

[code]      
          $ratio1 = $f_deduct/$this->get_order_total();
          $tod_amount = 0; 
          reset($order->info['tax_groups']); 
          while (list($key, $value) = each($order->info['tax_groups'])) { 
            $tax_rate = tep_get_tax_rate_from_desc($key); 
            $net = $tax_rate * $order->info['tax_groups'][$key]; 
            if ($net>0) { 
              $god_amount = $order->info['tax_groups'][$key] * $ratio1; 
              $tod_amount += $god_amount; 
              $order->info['tax_groups'][$key] = $order->info['tax_groups'][$key] - $god_amount; 
            } 
          }            
          $order->info['tax'] -= $tod_amount; 
          $order->info['total'] -= $tod_amount; 
[/code]

I hope  :)