Ошибка Undefined variable: site_users_id

<?php

function SetGroups($mas_groups, $set)
{
   $mas_groups = to_array($mas_groups);
   foreach ($mas_groups as $key=>$value)
   {
      foreach ($value as $key1=>$value1)
      {
         $set[] = $value1;
         if ($value1 == $key)
         {
            $set[] = $key;
            SetGroups($mas_groups, $set);
         }
      }
   }
   return $set;
}

$xsl_catalog = to_str($GLOBALS['LA']['xsl_catalog']);
$xsl_item = to_str($GLOBALS['LA']['xsl_item']);
$current_shop_id = to_int($GLOBALS['LA']['shop_id']);

$param = array();

$shop = & singleton('shop');

if ($GLOBALS['shop_item_path'] != false)
{
   $external_propertys = array();

   if (class_exists("SiteUsers"))
   {
      /* Получаем id текущего пользователя сайта */
      $SiteUsers = & singleton('SiteUsers');
      $site_user_id = $SiteUsers->GetCurrentSiteUser();
      $param['user_id'] = $site_user_id;
      $external_propertys['user_id'] = $site_user_id;
   }
   else
   {
      $site_user_id = 0;
      $external_propertys['user_id'] = 0;
   }

   // Если добавление комментария
   if (isset($_POST['submit_comment']) && !empty($GLOBALS['shop_item_path']['item']))
   {
      /* Проверяем CAPCHA*/
      $Captcha = new Captcha();

      $xmlData = '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
      $xmlData .= '<document>' . "\n";

      if ($site_user_id >= 0)
      {
         $param['shop_items_catalog_item_id'] = $GLOBALS['shop_item_path']['item'];
         $param['shop_comment_user_name'] = to_str($_REQUEST['shop_comment_user_name']);

         $param['shop_comment_user_email'] = to_str($_REQUEST['shop_comment_user_email']);
         $param['shop_comment_subject'] = to_str($_REQUEST['shop_comment_subject']);
         $param['shop_comment_text'] = to_str($_REQUEST['shop_comment_text']);
         $param['shop_comment_grade'] = to_int($_REQUEST['shop_comment_grade']);
         $param['shop_comment_date_time'] = date("Y-m-d H:i:s");

         /* Активность/неактивность комментария */
         $shop_row = $shop->GetShop($current_shop_id);

         if ($shop_row)
         {
            $param['shop_comment_active'] = to_int($shop_row['shop_comment_active']);
         }
         else
         {
            $param['shop_comment_active'] = false;
         }

         $external_propertys['comment_is_active'] = $param['shop_comment_active'];

         // Если есть модуль "Пользователи сайта", получим текущего пользователя
         if (class_exists('SiteUsers'))
         {
            $SiteUsers = & singleton('SiteUsers');
            $param['site_users_id'] = $SiteUsers->GetCurrentSiteUser();
         }
         else
         {
            $param['site_users_id'] = 0;
         }

         $shop_comment_id = $shop->InsertComment($param);

         // Задан XSL для формирования письма администратору о добавлении комментария к товару
         if (to_str($GLOBALS['LA']['xsl_add_comment_letter_to_admin']) != '')
         {
            // Формируем XML для комментария
            $xmlData .= $shop->GenXml4Comment($shop_comment_id);
            $xmlData .= '</document>' . "\n";

            $xsl = new xsl();
            // Формируем текст письма администратору
            $message = $xsl->build($xmlData, $GLOBALS['LA']['xsl_add_comment_letter_to_admin']);

            // Формат письма - текст
            if (to_int($GLOBALS['LA']['comment_mail_type']) == 0)
            {
               $comment_mail_type = 'text/plain';
            }
            else
            {
               $comment_mail_type = 'text/html';
            }

            $subject = $GLOBALS['MSG_shops']['subject_report_for_comment'];

            $kernel = & singleton('kernel');

            // Получаем e-mail куратора магазина
            $email_to = to_str($shop_row['shop_shops_admin_mail']);

            if (!empty($email_to))
            {
               $kernel->SendMailWithFile($email_to, EMAIL_TO, $subject, $message, array(), $comment_mail_type);
            }
         }
      }
      else
      {
         /* Неправильно введен код изображенный на картинке */
         $external_propertys['error'] = 1;

         /* Запоминаем значения */
         $external_propertys['shop_comment_user_name'] = strip_tags(to_str($_REQUEST['shop_comment_user_name']));
         $external_propertys['shop_comment_user_email'] = strip_tags(to_str($_REQUEST['shop_comment_user_email']));
         $external_propertys['shop_comment_subject'] = strip_tags(to_str($_REQUEST['shop_comment_subject']));
         $external_propertys['shop_comment_text'] = strip_tags(to_str($_REQUEST['shop_comment_text']));
         $external_propertys['shop_comment_grade'] = to_int($_REQUEST['shop_comment_grade']);
         $external_propertys['shop_comment_date_time'] = date("Y-m-d H:i:s");
      }
   }

   /* Вывод списка */
   if (!$GLOBALS['shop_item_path']['item'])
   {
      $param['current_group_id'] = $GLOBALS['shop_item_path']['group']; // корневая группа

      /* Определяем номер элемента, с которого начинается показ в текущей группе */
      $page = end($GLOBALS['URL_ARRAY']);
      $page = to_str($page);

      $shop_row = $shop->GetShop($current_shop_id);
      if ($shop_row)
      {
         $items_on_page = $shop_row['shop_items_on_page'];
      }
      else
      {
         $items_on_page = 10;
      }

      /*
       Порядок сортировки ('Asc' - по возрастанию, 'Desc' - по убыванию, 'Rand' - произвольный порядок)
       $param['items_order'] = 'Asc';
       Поле, по которому сортируем (наименование элемента)
       $param['items_field_order'] = 'shop_items_catalog_name';
       */

      if (isset($_GET['all_group']))
      {
         // Выводим из всех групп
         $param['current_group_id'] = false;
      }

      /* Ограничиваем по производителю */
if (to_int($_GET['producer_id']) > 0)
{
$element['type'] = 0; // 0 - основное св-во, 1 - дополнительное
$element['name'] = 'shop_producers_list_id';
$element['prefix'] = 'AND'; // префикс
$element['if'] = '='; // Условие
$element['value'] = to_int($_GET['producer_id']);
$element['sufix'] = '';
$param['select'][] = $element;
if(isset($_GET['action']))
{
if(to_str($_GET['action']) == 'all')
{
$param['current_group_id']=false;
$external_propertys['producer_all'] = 1;
}
}
if(isset($_GET['apply_filter']))
{
/* Применять фильтр */
$external_propertys['apply_filter'] = true;
}
   $external_propertys['producer_id'] = to_int($_GET['producer_id']);
}

      /* Ограничиваем по продавцу */
      if (to_int($_GET['saller_id']) > 0)
      {
         $element['type'] = 0; // 0 - основное св-во, 1 - дополнительное
         $element['name'] = 'shop_sallers_id';
         $element['prefix'] = 'AND'; // префикс
         $element['if'] = '='; // Условие
         $element['value'] = to_int($_GET['saller_id']);
         $element['sufix'] = '';
         $param['select'][] = $element;

         $external_propertys['saller_id'] = to_int($_GET['saller_id']);

         /* Применять фильтр */
         $external_propertys['apply_filter'] = true;
      }

      $price_from = str_replace(',', '.', to_float($_GET['price_from']));

      /* Ограничиваем по цене ОТ */
      if ($price_from > 0)
      {
         $external_propertys['price_from'] = $price_from;

         /* Применять фильтр */
         $external_propertys['apply_filter'] = true;
      }

      $price_to = str_replace(',', '.', to_float($_GET['price_to']));

      /* Ограничиваем по цене ДО */
      if ($price_to > 0)
      {
         $external_propertys['price_to'] = $price_to;

         /* Применять фильтр */
         $external_propertys['apply_filter'] = true;
      }

      /* Число элементов на странице */
      $on_page = to_int($_GET['on_page']);

      if ($on_page > 0 && $on_page < 150)
      {
         $param['items_on_page'] = $on_page;
         $external_propertys['on_page'] = $on_page;

         /* Применять фильтр */
         $external_propertys['apply_filter'] = true;
      }

      // Определяем номер страницы.
      if ($on_page)
      {
         $items_on_page = $on_page;
      }
      if (ereg("^page-([0-9]*)$", $page, $regs) && to_int($regs[1]) > 1)
      {
         /* Страница умножается на кол-во элементов, выводимых на страницу */
         $items_begin = ($regs[1] - 1) * $items_on_page;
      }
      else
      {
         $items_begin = 0;
      }

      $param['items_begin'] = $items_begin;

      /* Направление сортировки, 0 - по-возрастанию, 1 - по-убыванию */
      $order_direction = to_int($_GET['order_direction']);

      switch ($order_direction)
      {
         case 1: /* По-возрастанию */
            {
               $order_direction = 'ASC';
               break;
            }
         case 2: /* По-убыванию */
            {
               $order_direction = 'DESC';
               break;
            }
         default: /* по умолчанию */
            {
               $order_direction = 'ASC';
               break;
            }
      }

      /* Поле сортировки */
      $sort_field = to_int($_GET['sort_by_field']);

      switch ($sort_field)
      {
         case 1: /* По имени */
            {
               $param['items_field_order'] = 'shop_items_catalog_name';
               $param['items_order'] = $order_direction;
               $external_propertys['sort_by_field'] = $sort_field;
               $external_propertys['order_direction'] = $order_direction;
               break;
            }
         case 2: /* По цене */
            {
               //$param['items_field_order'] = 'shop_items_catalog_price';
               $param['items_field_order'] = 'item_price_absolute';
               $param['items_order'] = $order_direction;
               $external_propertys['sort_by_field'] = $sort_field;
               $external_propertys['order_direction'] = $order_direction;
               break;
            }
         case 3:  /* По оценке*/
            {
               $param['items_field_order'] = 'shop_comment_grade';
               $param['items_order'] = $order_direction;
               $external_propertys['sort_by_field'] = $sort_field;
               $external_propertys['order_direction'] = $order_direction;
               break;
            }
      }

      // Задан фильтр и/или сортировка по цене
      if ($price_from > 0 || $price_to > 0 || $sort_field == 2)
      {
         // Получаем список валют магазина
         $currency_result = $shop->GetAllCurrency();

         $query_currency_switch = 'shop_items_catalog_price';
         
         if(isset($param['sql_external_select']))
         {
            $param['sql_external_select'] .= ', shop_discount_table.shop_discount_percent';
         }
         else
         {
            $param['sql_external_select'] = ', shop_discount_table.shop_discount_percent';
         }

         // Цикл по валютам магазина
         while ($currency_row = mysql_fetch_assoc($currency_result))
         {
            // Получаем коэффициент пересчета для каждой валюты
            $currency_coefficient = $shop->GetCurrencyCoefficientToShopCurrency($currency_row['shop_currency_id'], $shop_row['shop_currency_id']);

            $query_currency_switch = "IF (shop_items_catalog_table.shop_currency_id = {$currency_row['shop_currency_id']}, IF (shop_discount_table.shop_discount_percent, shop_items_catalog_price * (100 - shop_discount_table.shop_discount_percent) * $currency_coefficient / 100, shop_items_catalog_table.shop_items_catalog_price * $currency_coefficient), $query_currency_switch)";
         }

         $param['sql_external_select'] .= ', ' . $query_currency_switch . ' AS item_price_absolute';

         $current_date = date('Y-m-d H:i:s');
         
if(!isset($param['select_discount']))
{
         if(isset($param['sql_from']))
         {
            $param['sql_from'] .= "LEFT JOIN shop_item_discount_table ON (shop_items_catalog_table.shop_items_catalog_item_id = shop_item_discount_table.shop_items_catalog_item_id) LEFT JOIN shop_discount_table ON (shop_item_discount_table.shop_discount_id = shop_discount_table.shop_discount_id AND (shop_discount_table.shop_discount_to >= '$current_date' OR shop_discount_table.shop_discount_to ='0000-00-00 00:00:00') AND shop_discount_table.shop_discount_from <= '$current_date')";
         }
         else
         {
            $param['sql_from'] = "LEFT JOIN shop_item_discount_table ON (shop_items_catalog_table.shop_items_catalog_item_id = shop_item_discount_table.shop_items_catalog_item_id) LEFT JOIN shop_discount_table ON (shop_item_discount_table.shop_discount_id = shop_discount_table.shop_discount_id AND (shop_discount_table.shop_discount_to >= '$current_date' OR shop_discount_table.shop_discount_to ='0000-00-00 00:00:00') AND shop_discount_table.shop_discount_from <= '$current_date')";
         }
}
      }

      /* Обработка дополнительных свойств.
       Получаем список свойств, разрешенных для отображения в данной группе и в фильтре */
      $resource_properties = $shop->GetPropertiesOfGroupForXml($current_shop_id, $param['current_group_id']);

      if ($resource_properties)
      {
         $element['type'] = 0; /* 0 - основное св-во, 1 - дополнительное */

         /* Префикс, если нужен. */
         $element['prefix'] = ' AND ('; // префикс

         /* ОСТАВЛЯЕТЕ БЕЗ ИЗМЕНЕНИЙ, ЭТО НУЖНО ДЛЯ СОРТИРОВКИ */
         $element['name'] = ''; // Имя

         /* поля для основного св-ва, если тип = 1, то не указывается */
         $element['if'] = ''; // Условие

         /* Вот здесь передается ID доп. св-ва, по которому производится сортировка.
          ID ВАШЕГО ПОЛЯ УКАЗЫВАЕТЕ ЗДЕСЬ */
         $element['value'] = ''; /* Значение поля (или параметра) */
         $element['sufix'] = ' ';

         /* Добавляем в общий список условий */
         $param['select'][] = $element;

         $count_condition = 0;
         $property_xml = '';

         $count_properties = mysql_num_rows($resource_properties);

         // Массив идентификаторов доп. свойств, для которых задан тип отображения "Список - флажками"
         $mas_key_list_checkbox = array();

         for ($i = 0; $i < $count_properties; $i++)
         {
            $row = mysql_fetch_assoc($resource_properties);

            $element['value'] = 0;

            switch ($row['shop_list_of_properties_show_kind'])
            {
               case 1: // Поле ввода
               case 2: // Список - списком
               case 3:   // Список - переключателями
               case 5:   // Флажок
                  {
                     /* Выбираем режим отображения */
                     $get_param = 'property_id_' . $row['shop_list_of_properties_id'];

                     if (isset($_GET[$get_param]))
                     {
                        if ($row['shop_list_of_properties_type'] == 0
                        || $row['shop_list_of_properties_show_kind'] == 1)
                        {
                           if (to_str($_GET[$get_param]) !== '')
                           {
                              $element['value'] = quote_smart(to_str($_GET[$get_param]));
                              $external_propertys['property_id_' . to_int($row['shop_list_of_properties_id'])] = $element['value'];
                              $property_xml .= '&property_id_' . to_int($row['shop_list_of_properties_id']) . '=' . $element['value'];

                              //$element['value'] = '%' . $element['value'] . '%';
                           }
                        }
                        // Флажок
                        elseif($row['shop_list_of_properties_type'] == 7)
                        {
                           $element['value'] = 1;
                           $external_propertys['property_id_' . to_int($row['shop_list_of_properties_id'])] = $element['value'];
                           $property_xml .= '&property_id_' . to_int($row['shop_list_of_properties_id']) . '=' . $element['value'];
                        }
                        else
                        {
                           if (to_int($_GET[$get_param]) > 0)
                           {
                              $element['value'] = to_int($_GET[$get_param]);
                              $external_propertys['property_id_'.to_int($row['shop_list_of_properties_id'])] = $element['value'];
                              $property_xml .= '&property_id_'.to_int($row['shop_list_of_properties_id']).'='.$element['value'];
                           }
                        }
                     }

                     if ($element['value'])
                     {
                        /* Применять фильтр */
                        $external_propertys['apply_filter'] = true;

                        $element['property_id'] = to_int($row['shop_list_of_properties_id']);
                        $element['type'] = 1; /* 0 - основное св-во, 1 - дополнительное */
                        //$element['prefix'] = ''; /* префикс */

                        // Способ отображения "Поле ввода"
                        if ($row['shop_list_of_properties_show_kind'] == 1 && !is_numeric($_GET[$get_param]))
                        {
                           $element['value'] = '%' . $element['value'] . '%';
                           $element['if'] = ' LIKE '; /* Условие */
                        }
                        else
                        {
                           $element['if'] = '='; /* Условие */
                        }

                        $element['sufix'] = '';

                        if ($count_condition)
                        {
                           $element['prefix'] = ' OR '; /* префикс */
                        }
                        else
                        {
                           $element['prefix'] = ' '; /* префикс */
                        }

                        $count_condition++;
                        $param['select'][] = $element;
                     }
                  }
               case 4: // Тип отображения - список флажками
                  {
                     // Модуль "Списки" подключен и  значенич доп. свойства не обработаны ранее
                     if (class_exists('lists') && !in_array($row['lists_id'], $mas_key_list_checkbox))
                     {
                        $mas_key_list_checkbox[] = $row['lists_id'];
                           
                        $lists = & singleton('lists');

                        // Получаем информацию о элементах списка, который задан для доп. свойства
                        $list_items_resource = $lists->SelectListsItems($row['lists_id']);

                        $k = 0;

                        // Цикл по элементам списка
                        while($row_list_item = mysql_fetch_assoc($list_items_resource))
                        {
                           // Передано значение элемента списка. Формируем запрос.
                           if (isset($_GET['property_id_' . $row['shop_list_of_properties_id'] .'_item_id_' . $row_list_item['lists_items_id']]))
                           {

                              if ($count_condition || $k > 0)
                              {
                                 $element['prefix'] = ' OR '; /* префикс */
                              }
                              else
                              {
                                 $element['prefix'] = ' ';
                              }
                                 
                              $element['property_id'] = to_int($row['shop_list_of_properties_id']);
                                 
                              $element['type'] = 1; /* 0 - основное св-во, 1 - дополнительное */
                              $element['if'] = '='; /* Условие */
                              $element['value'] = $row_list_item['lists_items_id'];
                              $element['sufix'] = '';
                              $param['select'][] = $element;

/* Применять фильтр */
$external_propertys['apply_filter'] = true;

                              $external_propertys['property_id_' . to_int($row['shop_list_of_properties_id']) . '_item_id_' . $row_list_item['lists_items_id']] = $element['value'];
                              $property_xml .= '&property_id_' . to_int($row['shop_list_of_properties_id']) . '_item_id_' . $row_list_item['lists_items_id'] . '=' . $element['value'];

                              $k++;
                           }
                        }

                        // Задан фильтр по одному из значений списка
                        if ($k > 0)
                        {
                           $count_condition++;
                        }
                     }
                     break;
                  }
               case 6: // Тип отображения - диапазон
                  {
                     $get_param_from = 'property_id_' . $row['shop_list_of_properties_id'] . '_from';
                     $get_param_to = 'property_id_' . $row['shop_list_of_properties_id'] . '_to';

                     if (isset($_GET[$get_param_from]) && mb_strlen($_GET[$get_param_from]) > 0)
                     {

                        $value = floatval($_GET[$get_param_from]);

                        /* Применять фильтр */
                        $external_propertys['apply_filter'] = true;

                        $external_propertys['property_id_'.to_int($row['shop_list_of_properties_id']) . '_from'] = $value;
                        $property_xml .= '&property_id_' . to_int($row['shop_list_of_properties_id']).'_from=' . $value;

                        $element['type'] = 1; /* 0 - основное св-во, 1 - дополнительное */
                        $element['property_id'] = to_int($row['shop_list_of_properties_id']);
                        $element['if'] = 'IS NOT NULL'; /* Условие */
                        $element['value'] = '';

                        $property_row = $shop->GetPropretyOfItems($element['property_id']);

                        if($property_row['shop_list_of_properties_type'] == 2)
                        {
                           $lists_id = to_int($property_row['lists_id']);
                           $lists = & singleton('lists');

                           $list_row = $lists->GetListItemsById($lists_id);

                           $in = array();

                           if (is_array($list_row) && count($list_row) > 0)
                           {
                              foreach ($list_row as $row_lists_items_value)
                              {
                                 if ($row_lists_items_value['lists_items_value'] >= $value)
                                 {
                                    $in[] = $row_lists_items_value['lists_items_id'];
                                 }
                              }
                           }

                           if(count($in) > 0)
                           {
                              $element['sufix'] = 'AND shop_properties_items_table.shop_properties_items_value - 0.0 IN ('.implode(',', $in).') ';
                           }
                           else
                           {
                              $element['sufix'] = "";
                           }
                        }
                        else
                        {
                           $element['sufix'] = " AND shop_properties_items_table.shop_properties_items_value - 0.0 >=$value";
                        }

                        if ($count_condition)
                        {
                           $element['prefix'] = ' OR '; /* префикс */
                        }
                        else
                        {
                           $element['prefix'] = ' '; /* префикс */
                        }

                        $param['select'][] = $element;

                        $count_condition++;
                     }

                     if (isset($_GET[$get_param_to]) && mb_strlen($_GET[$get_param_to]) > 0)
                     {
                        $value = floatval($_GET[$get_param_to]);

                        /* Применять фильтр */
                        $external_propertys['apply_filter'] = true;

                        $external_propertys['property_id_'.to_int($row['shop_list_of_properties_id']) . '_to'] = $value;
                        $property_xml .= '&property_id_'.to_int($row['shop_list_of_properties_id']).'_to='.$value;

                        $element['property_id'] = to_int($row['shop_list_of_properties_id']);
                        $element['type'] = 1; /* 0 - основное св-во, 1 - дополнительное */
                        $element['if'] = 'IS NOT NULL'; /* Условие */
                        $element['value'] = '';

                        $property_row = $shop->GetPropretyOfItems($element['property_id']);

                        if ($property_row['shop_list_of_properties_type'] == 2)
                        {
                           $lists_id = to_int($property_row['lists_id']);
                           $lists = & singleton('lists');

                           $list_row = $lists->GetListItemsById($lists_id);

                           $in = array();

                           if (is_array($list_row) && count($list_row) > 0)
                           {
                              foreach ($list_row as $row_lists_items_value)
                              {
                                 if($row_lists_items_value['lists_items_value'] <= $value)
                                 {
                                    $in[] = $row_lists_items_value['lists_items_id'];
                                 }
                              }
                           }
                              
                           if(count($in) > 0)
                           {
                              $element['sufix'] = 'AND shop_properties_items_table.shop_properties_items_value - 0.0 IN ('.implode(',', $in).') ';
                           }
                           else
                           {
                              $element['sufix'] = "";
                           }

                        }
                        else
                        {
                           $element['sufix'] = "AND shop_properties_items_table.shop_properties_items_value - 0.0 <= $value";
                        }

                        if (!(isset($_GET[$get_param_from]) && mb_strlen($_GET[$get_param_from]) > 0))
                        {
                           if ($count_condition)
                           {
                              $element['prefix'] = ' OR '; /* префикс */
                           }
                           else
                           {
                              $element['prefix'] = ' '; /* префикс */
                           }

                           $count_condition++;
                        }
                        else
                        {
                           $element['prefix'] = ' AND ';
                        }

                        $param['select'][] = $element;
                     }

                     break;
                  }
               case 7: // Список - список с множественным выбором
                  {
                     // Модуль "Списки" подключен и передан массив значений доп. свойства
                     if (class_exists('lists') && isset($_GET['property_id_' . $row['shop_list_of_properties_id']]) && is_array($_GET['property_id_' . $row['shop_list_of_properties_id']]))
                     {
                        $lists = & singleton('lists');

                        // Получаем информацию о элементах списка, который задан для доп. свойства
                        $list_items_resource = $lists->SelectListsItems($row['lists_id']);

                        $k = 0;

                        // Цикл по элементам списка
                        while($row_list_item = mysql_fetch_assoc($list_items_resource))
                        {
                           // Передано значение элемента списка. Формируем запрос.
                           if (in_array($row_list_item['lists_items_id'], $_GET['property_id_' . $row['shop_list_of_properties_id']]))
                           {
                              if ($count_condition || $k > 0)
                              {
                                 $element['prefix'] = ' OR '; /* префикс */
                              }
                              else
                              {
                                 $element['prefix'] = ' ';
                              }
                                 
                              $element['property_id'] = to_int($row['shop_list_of_properties_id']);
                                 
                              $element['type'] = 1; /* 0 - основное св-во, 1 - дополнительное */
                              $element['if'] = '='; /* Условие */
                              $element['value'] = $row_list_item['lists_items_id'];
                              $element['sufix'] = '';
                              $param['select'][] = $element;

                              $external_propertys['property_id_' . to_int($row['shop_list_of_properties_id']) . '_item_id_' . $row_list_item['lists_items_id']] = $element['value'];
                              $property_xml .= '&property_id_' . to_int($row['shop_list_of_properties_id']) . '_item_id_' . $row_list_item['lists_items_id'] . '=' . $element['value'];

                              $k++;
                           }
                        }

                        // Задан фильтр по одному из значений списка
                        if ($k > 0)
                        {
                           $count_condition++;
                        }
                     }
                        
                     break;
                  }
            }
         }

         if (!$count_condition)
         {
            $element['prefix'] = ' 1'; /* префикс */
         }
         else
         {
            $element['prefix'] = ''; // префикс
         }
         /* добавляем конечный элемент, содержащий HAVING */
         $element['type'] = 0; /* 0 - основное св-во, 1 - дополнительное */

         /* ОСТАВЛЯЕТЕ БЕЗ ИЗМЕНЕНИЙ, ЭТО НУЖНО ДЛЯ СОРТИРОВКИ */
         $element['name'] = ''; /* Имя */

         /* поля для основного св-ва, если тип = 1, то не указывается */
         $element['if'] = ''; /* Условие */

         /* Вот здесь передается ID доп. св-ва, по которому производится сортировка.
          ID ВАШЕГО ПОЛЯ УКАЗЫВАЕТЕ ЗДЕСЬ */
         $element['value'] = ''; // Значение поля (или параметра)

         //if ($count_condition != 0 && ($price_from > 0 || $price_to >0))
         if ($count_condition != 0)
         {
            $param['sql_group_by'] = 'GROUP BY shop_items_catalog_table.shop_items_catalog_item_id';
               
            $param['sql_having'] = "HAVING COUNT(shop_properties_items_table.shop_properties_items_id) = {$count_condition}";
         }
         else
         {
            $param['sql_having'] = 'HAVING 1 ';
         }

         $element['sufix'] = ' ) ';

         /* Добавляем в общий список условий */
         $param['select'][] = $element;
      }
      else
      {
         $param['sql_having'] = 'HAVING 1 ';
      }

      if ($price_from > 0)
      {
         $param['sql_having'] .= ' AND item_price_absolute >= ' . $price_from;
      }

      if ($price_to > 0)
      {
         $param['sql_having'] .= ' AND item_price_absolute <= ' . $price_to;
      }
         
      /* добавляем конечный элемент, содержащий HAVING */
      /*$element['type'] = 0; // 0 - основное св-во, 1 - дополнительное
       $element['prefix'] = ' AND';
       $element['name'] = 'shop_items_catalog_table.shop_shops_id';
       $element['if'] = '=';
       $element['value'] = $current_shop_id; // Значение поля (или параметра)
       $element['sufix'] = '';
       $param['select'][] = $element;*/

      if (!empty($property_xml))
      {
         $external_propertys['property_xml'] = $property_xml;
      }

      // Если передано имя тэга - фильтруем
      if (isset($GLOBALS['shop_item_path']['tag_name']))
      {
         if (class_exists('Tag'))
         {
            $oTag = & singleton('Tag');

            $tag_row = $oTag->GetTagByPath($GLOBALS['shop_item_path']['tag_name']);

            $param['tags'] = array($tag_row['tag_id']);

            // При выводе тэгов вывод элементов ведется из всех групп
            $param['current_group_id'] = false;
         }
      }

      // При выводе списка товаров получать подробное описание каждого товара не нужно
      $param['show_text'] = false;

      // При выводе списка товаров получать сопутствующие товары не нужно
      $param['xml_show_tying_products'] = false;

      // Запрещаем передачу в XML свойств групп
      $param['xml_show_group_property'] = false;

      $shop->ShowShop($current_shop_id, $xsl_catalog, $param, $external_propertys);
   }
   else
   {
      // проверим, не является ли этот товар сопутствющим для других
        $query = 'SELECT `shop_items_catalog_item_id` FROM `shop_intermediate_table` WHERE `sho_shop_items_catalog_item_id` = ' .
            to_int($GLOBALS['shop_item_path']['item']);
        $DataBase = &singleton('DataBase');
        $tying_hosts = $DataBase->select($query);
        if ($DataBase->get_count_row() > 0 && $tying_hosts) {
            $xml_host = '';
            $host_param['xml_show_tying_products'] = false;
            $host_param['xml_show_modification'] = false;
            $host_param['xml_show_comments'] = false;
            while ($host_item = mysql_fetch_assoc($tying_hosts)) {
                $host_row = $shop->GetItem($host_item['shop_items_catalog_item_id']);
                $xml_host .= $shop->GenXml4Item(0, $host_row, $site_users_id, $host_param);
            }
            $param['external_xml'] = '<tying_hosts>' . $xml_host . '</tying_hosts>';
        }
      
      /* Вывод конкретного элемент */
      $shop->ShowItem($GLOBALS['shop_item_path']['item'], $xsl_item, $param, $external_propertys);
   }
}
?>

$xml_host .= $shop->GenXml4Item(0, $host_row, $site_users_id, $host_param);

$xml_host .= $shop->GenXml4Item(0, $host_row, $site_user_id, $host_param);