Всем привет.
Помогите а то что то не получается наследование классов
Взял я Ирбисовский пагинатор и решил его подкючиться как потомка к классу работающим с БД

<?php

class Paginator extends db
{
  /////////////////////////////////////////////////
  //               PUBLIC
  /////////////////////////////////////////////////    
  
/**
* Establishes page number.
* @var int
*/ 
    public $NumPage         =  1;  
/**
* Establishes quantity of numbers.
* @var int
*/ 
    public $NumRows         =  1;   
      
/**
* Establishes quantity of columns.
* @var int
*/ 
    public $NumColumns      =  1;
    
/**
* Includes mod_rewrite.
* @var string
*/ 
    public $LevelPage      =  'num';
           
  /////////////////////////////////////////////////
  //         PROPERTIES AND  PRIVATE
  ////////////////////////////////////////////////

    private $TableTotal     =  0;
    private $TableCount     =  0;    

/**
* Constructor
* @param int $page
* @param int $rows 
* @param int $columns 
*/    
    public function __construct($page = 1, $rows = 1, $columns = 1) 
    {
        if($rows > 1)
            $this->NumPage     = (int)$page;    
    
        if($rows > 1)
            $this->NumRows     = $rows;

        if($columns > 1)
            $this->NumColumns  = $columns; 
            
                  
    } 

/**
* Operates a cache of difficult inquiries
* @param string $query      
* @access public       
* @return void
*/    
    public function countQuery($query) 
    {
       
        $query = str_replace("\n", " ", $query);         
        preg_match("#FROM(.+)#i", $query, $table);
   
        $result = parent::mysqlQuery("SELECT COUNT(*) AS `cnt`
                           FROM ". $table[1]);
      
        $this->TableCount = mysql_result($result, 0); 
      
        $res = parent::mysqlQuery($query . $this->createLimit());
        
        return $res;
                              
    }
    
/**
* Operates a cache of difficult inquiries
* @param string $query      
* @access public
* @return void
*/    
    public function calcQuery($query) 
    {
        // Заменяем SELECT на SELECT SQL_CALC_FOUND_ROWS
        $query = preg_replace('#SELECT#i', 'SELECT SQL_CALC_FOUND_ROWS ', $query);
        // Выполняем основной запрос
        $res = parent::mysqlQuery($query . ' 
                          LIMIT '. $this->NumPage .', '. $this->NumRows * $this->NumColumns);
        // Считаем к-во рядов           
        $this->TableCount = mysql_result(parent::mysqlQuery('SELECT FOUND_ROWS()'), 0);
        // Запускаем метод для менюшки
        $this->createLimit();
   
        return $res;                        
    }
  
/**
* Calculates a position and prepares a limit for inquiry
* @param int $page      
* @access public
* @return string
*/    
    public function createLimit()
    { 
         
        $this->TableTotal = intval(($this->TableCount - $this->NumColumns) / $this->NumRows * $this->NumColumns) - 1;
          
        if($this->NumPage < 1) 
            $this->NumPage = 1;
            
        if(empty($this->TableTotal) || $this->TableTotal < $this->TableCount)
            $this->TableTotal = $this->TableCount;
                          
        if($this->NumPage > $this->TableTotal) 
            $this->NumPage = $this->TableTotal; 
                         
        $start = $this->NumPage * $this->NumRows * $this->NumColumns - $this->NumRows * $this->NumColumns;
         
        if($start < 0)
           $start = 0;
             
        return ' LIMIT '. $start .', '. $this->NumRows * $this->NumColumns;
        
    }


/**
* Generates the navigation menu     
* @access private
* @param string $link
* @return string
*/    
    function createMenu($level = 'num')
    {   
        $this->LevelPage = $level; 
            
        $count = ceil($this->TableTotal / $this->NumRows / $this->NumColumns);
        $menu = "\n<!-- Paginator begin -->\n";

        if($count < 13)
        {          
            $i = 1;    
            $cnt = $count;            
        }
        else
        {
            if($this->NumPage > 10)
                $menu .= $this->createLink(($this->NumPage - 10), '-10<', '_top');
                        
            if($count > 12)
            {    
                if($this->NumPage == 7)
                    $menu .= $this->createLink(1, 1);
                elseif($this->NumPage == 8)        
                    $menu .= $this->createLink(1, 1) 
                          .  $this->createLink(2, 2);                                      
                elseif($this->NumPage > 7)        
                    $menu .= $this->createLink(1, 1) 
                          .  $this->createLink(2, 2) 
                          .  $this->createLink(0, '...', '_top', false);
            }    


            if($this->NumPage < 6)
            {  
                $i = 1;
                $cnt = 10;                
            }                
            elseif($this->NumPage >= $count)
            { 
                $i = $count - 10; 
                $cnt = $count; 
            }
            else
            {   
                $i = $this->NumPage - 5;
                $cnt = $count;                
            }


            if($this->NumPage < 6) 
                $cnt = $i + 9;           
            elseif($count - $i > 10)
                $cnt = $i + 10;
				        
        }        

      
        while($i <= $cnt)
        {
            if($i == $this->NumPage)
                $menu .= $this->createLink($i, $i, '_active', false);
            else
                $menu .= $this->createLink($i, $i);
                   
             $i++;           
        }  
       
        if($count > 12)
        {    
            if($this->NumPage < $count - 6)
                $menu .= $this->createLink(0, '...', '_top', false)
                      . $this->createLink(($count - 1), ($count - 1));
                   
            if($this->NumPage < $count - 5)        
                $menu .= $this->createLink($count, $count);
        }              
 
       $end = ($this->NumPage  + 10 > $count) ? $count : $this->NumPage + 10;
                     
       if($this->NumPage < $count - 5 && $count - $this->NumPage >= 10)
           $menu .= $this->createLink($end, '>+10', '_top');
                                   
        return $menu ."\n\n<!-- Paginator end -->\n";    
    }

/**
* Makes a hyperlink
* @param int $page
* @param string $link, $class
* @param bolean $active
* @access private
* @return string
*/      
    private function createLink($page = 1, $link = '', $class = '', $active = true)
    {                   

        if(empty($link))
           $link = $page;
     
        if($active)
            return "<span class=\"paginator". $class ."\">\n"
                 . "<a href=\"". href($this->LevelPage .'='. $page) ."\" />". $link ."</a>\n</span>\n";
        else
            return "<span class=\"paginator". $class ."\"> ". $link ." </span>\n"; 
    }

}

но почему то выбивает ошибку в классе работающем с БД!

class Paginator extends db

parent::mysqlQuery