offset next/prev link battle again :/

[fris]

ok, thanks for the help previous. ok when i go and load the code it just displays the prev/next links it doesnt get the directory contents displaying the 20 links. any ideas?

<?

  $MYFILENAME = "format.php"; 
  $FILESDIR = "videos/";
  $OFFSETNUM = 20; 


  $files = dir($FILESDIR); 

  if (isset($_REQUEST[offset]))  

  {  

    $offset = $_REQUEST[offset]; 
  } 
  else 
  { 
    $offset = 0; 
  } 

  for ($i=$offset; $i<=sizeof($files); $i++)  

  { 
    echo "<a href='$FILESDIR/$files[$i]'>$files[$i]</a><br/>"; 
  } 

  if ( ($offset - 20) >= 0 ) {  $prevoffset = $offset - 20; } else { $offset = 0; } 
  if ( ($offset + 20) <= sizeof($files) ) { $nextoffset = $offset + 20; } 

  echo "<a href='$MYFILENAME?offset=$prevoffset'>prev 20</a> | "; 
  echo "<a href='$MYFILENAME?offset=$nextoffset'>next 20</a>"; 

?>

thanks guys.