function e pager

[rocco.mod]

ciao mi da il seguente errore

Notice: Undefined variable: pag in C:\Programmi\Apache Software Foundation\Apache2.2\htdocs\supp\includes\function_staff.php on line 50

Fatal error: Call to a member function Link() on a non-object in C:\Programmi\Apache Software Foundation\Apache2.2\htdocs\supp\includes\function_staff.php on line 50

ho fatto cosi: 2 funzioni ....1)

    /**
    * view  tech 
    */
function GetStaff()
{
  global $dbcore;
  global $settings ;
  
  $pag = new Paginazione("select t. *  , gs. id_groups ,gs. nome_group from tech t  left join grouptech gs  on  t. groupid = gs. id_groups  order by t. staffid asc ", 30 , "pagina") or die(mysql_error());
  $return = array();
  if($record = $pag->Show())
    {
        foreach($record as $row)
        {
          $return[] = $row;
        }
    }

 return $return;  
} 

2)

function TechPager(){
    if($link = $pag->Link(3))
    {
        ?>
        [url="?pagina=<?=$link['first']?>"]&laquo;[/url] <?php
            foreach($link['before'] as $bf)
            {
                ?>[url="?pagina=<?=$bf?>"]<?=$bf?>[/url] <?php
            }
            ?><?=$link['current']?> <?php
            foreach($link['after'] as $at)
            {
                ?>[url="?pagina=<?=$at?>"]<?=$at?>[/url] <?php
            }
        ?>[url="?pagina=<?=$link['last']?>"]&raquo;[/url]
        <?php
    }
}