private function _applyDiscounts() {

        if (isset($this->basket['coupons']) && count($this->basket['coupons'])>0) {
            $subtotal = $tax_total = 0;
            $coupon = false;

            // COUPONS FIRST!!
            foreach ($this->basket['coupons'] as $key => $data) {

                if (!$data['gc']) {

                    $coupon = true;

                    if (!empty($data['product'])) {
                        $products = unserialize($data['product']);
                        $incexc = array_shift($products);
                        $product_count = count($products);
                    } else {
                        $product_count = 0;
                    }

                    foreach ($this->basket['contents'] as $hash => $item) {
                        if ($product_count==0 || $incexc == 'include' && in_array($item['id'], $products) || $incexc == 'exclude' && !in_array($item['id'], $products)) {
                            if($item['total_price_each']>0) {
                                $subtotal += ($item['total_price_each'] * $item['quantity']);
                            }
                            if($item['tax_each']['amount']>0) {
                                $tax_total += $item['tax_each']['amount'];
                            }
                        } elseif($item['total_price_each']>0) { // excluded items CAN be used against gift certificates!!
                            $excluded_products[$hash] = $item;
                        }
                    }

                    if($data['shipping'] && $this->basket['shipping']['value']>0) {
                        $subtotal += $this->basket['shipping']['value'];
                        if($this->basket['shipping']['tax']['amount']>0){
                            $tax_total += $this->basket['shipping']['tax']['amount'];
                        }
                    } elseif($this->basket['shipping']['value']>0) {
                        $excluded_shipping = $this->basket['shipping'];
                    }

                    $ave_tax_rate = ($tax_total / $subtotal);

                    $discount = ($data['type']=='percent') ? $subtotal*($data['value']/100) : $data['value'];

                    if($discount<$subtotal){
                        $subtotal -= $discount;
                        $this->_discount = $discount;
                        $this->basket['coupons'][$key]['value_display'] = sprintf('%.2F',$discount);
                    } elseif($discount>=$subtotal) {
                        $this->_discount = $subtotal;
                        $this->basket['coupons'][$key]['value_display'] = sprintf('%.2F',$subtotal);
                        $subtotal = 0;
                        if((!is_array($excluded_products) && !is_array($excluded_shipping))) {
                            $GLOBALS['tax']->adjustTax(0);
                            foreach($this->basket['coupons'] as $key => $data) {
                                if($data['gc']) unset($this->basket['coupons'][$key]);
                            }
                            $this->save();
                            return true; // nothing else to check.. return
                        }
                    }
                }
            }

            if(!$coupon) {
                foreach ($this->basket['contents'] as $hash => $item) {
                    if($item['total_price_each']>0) {
                        $subtotal += ($item['total_price_each'] * $item['quantity']);
                    }
                    if($item['tax_each']['amount']>0) {
                        $tax_total += $item['tax_each']['amount'];
                    }
                }

                if($this->basket['shipping']['value']>0) {
                    $subtotal += $this->basket['shipping']['value'];
                    if($this->basket['shipping']['tax']['amount']>0){
                        $tax_total += $this->basket['shipping']['tax']['amount'];
                    }
                }

                $ave_tax_rate = ($tax_total / $subtotal);

            } else {
                if((is_array($excluded_products) || is_array($excluded_shipping))) {
                    $excluded_subtotal = $excluded_tax_total = 0;
                    if(is_array($excluded_products)) {
                        foreach ($excluded_products as $hash => $item) {
                            if($item['total_price_each']>0) {
                                $excluded_subtotal += ($item['total_price_each'] * $item['quantity']);
                            }
                            if($item['tax_each']['amount']>0) {
                                $excluded_tax_total += $item['tax_each']['amount'];
                            }
                        }
                    }
                    if(is_array($excluded_shipping) && $excluded_shipping['value']>0) {
                        $excluded_subtotal += $excluded_shipping['value'];
                        if($excluded_shipping['tax']['amount']>0){
                            $excluded_tax_total += $excluded_shipping['tax']['amount'];
                        }
                    }
                    if($excluded_tax_total>0) {
                        $excluded_ave_tax_rate = ($excluded_tax_total / $excluded_subtotal);
                        $ave_tax_rate = ($ave_tax_rate + $excluded_ave_tax_rate) / 2;
                    }
                    $subtotal += $excluded_subtotal;
                }

            }

            // GIFT CERTS SECOND!!
            foreach ($this->basket['coupons'] as $key => $data) {
                if($data['gc'] && $subtotal==0) {
                    // Gift cert not needed so remove
                    unset($this->basket['coupons'][$key]);
                } elseif ($data['gc'] && $subtotal>0) {

                    $discount   = $data['value'];

                    if($discount<$subtotal){
                        $subtotal -= $discount;
                        $this->_discount += $discount;
                        $this->basket['coupons'][$key]['value_display'] = sprintf('%.2F',$discount);
                        $remainder = 0;
                    } elseif($discount>=$subtotal) {
                        $remainder = $discount - $subtotal;
                        $this->basket['coupons'][$key]['value_display'] = sprintf('%.2F',$subtotal);
                        $this->_discount += $subtotal;
                        $subtotal = 0;
                    }
                    $this->basket['coupons'][$key]['remainder'] = $remainder;
                }
            }
            $tax = ($subtotal>0) ? ($subtotal*$ave_tax_rate) : 0;
            $GLOBALS['tax']->adjustTax($tax);

            foreach ($GLOBALS['hooks']->load('class.cart.apply_discounts') as $hook) include $hook;

            $this->save();
            return true;
        }

        return false;
    }