Vis dir kode, skal ikke vise filendelser!

Denne kode, som åbner mit dir, skal i stedet for f.eks. at skrive "Hejmeddig.txt" kun skrive "Hejmeddig".

<?php
$viewtypes = array(".txt",".pdf"); // Filtyper der skal vises!

if ($print) {
include ("../../printtop.php");

$handle = fopen("$print", "r");
while (!feof($handle)) {
  $buffer .= fgets($handle, 4096);
}
fclose($handle);
$buffer = ereg_replace("\n","<br>",$buffer);
echo $buffer;

include ("../../printbund.php");
exit;
}

if ($vis) {
include ("../../top.php");
echo "<a href=\"http://michaelb.dk/fugleforumdk/\">FugleForum</a> > <a href=\"http://michaelb.dk/fugleforumdk/artikler\">Artikler</a> > Andre > $vis<br> <img src=\"http://michaelb.dk/fugleforumdk/linie.gif\"><div style=\"text-align:right\"><a href=\"index.php?print=$vis\" target=\"_blank\">Udskriv artikel</a></div><br><br></font>";

$handle = fopen("$vis", "r");
while (!feof($handle)) {
  $buffer .= fgets($handle, 4096);
}
fclose($handle);
$buffer = ereg_replace("\n","<br>",$buffer);
echo $buffer;

echo "<br><br>";
  echo "<center><A HREF=\"http://www.michaelb.dk/fugleforumdk/artikler/Andre/\">Tilbage til oversigt</a></center>";
include ("../../bund.php");
exit;
}
if(!isset($dir)){
$dir = ".";
}

      include ("../../top.php");
        echo "<a href=\"http://michaelb.dk/fugleforumdk/\">FugleForum</a> > <a href=\"http://michaelb.dk/fugleforumdk/artikler\">Artikler</a> > Andre<br> <img src=\"http://michaelb.dk/fugleforumdk/linie.gif\"><br><br></font>";
        echo "<table width=\"100%\">";

if ($dirpointer = @opendir($dir)) {
  while($file = readdir($dirpointer)) {
      $extension = ".".strtolower(end(explode(".", $file)));
      if (in_array($extension, $viewtypes)) {
          $size = round(filesize($dir."/".$file)/1024, 2);
        echo "<tr><td><a href=\"index.php?vis=$file\"><IMG src='..\..\d.gif' border='0'> $file</A> </td><td> <a href=\"index.php?print=$file\" target=\"_blank\"> <img src=\"../../printer_icon.gif\" border=\"0\" alt=\"Åben $file i printervenlig version\"> </A></td></tr>\n";
      }
  }
  closedir($dirpointer);
        echo "</table>";
        echo "<center><A HREF=\"http://www.michaelb.dk/fugleforumdk/artikler/\">Tilbage til kategorier</a></center>";
      include ("../../bund.php");
}
?>