Parse error

[Simon]

Hi Leute,
ich habe folgendes:

Code:
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<?
if($_SESSION[loggedin]=="JH_VAO" or $_SESSION[loggedin]=="SiteAdmin"):
endif;
switch ($action) {
case "neu":
include("./forum/neu.php");
break;
case "lesen":
include("./forum/lesen.php");
break;
default:
include("./forum/index.php");
break;
}
else:
echo "Zugriff verweigert";
endif;
?>
--------------------------------------------------------------------------------

Und als Fehlermeldung kommt immer:

Code:
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Parse error: parse error in /var/htdocs/www.domain.de/includes/forum.php on line 15
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Was ist den da der Fehler?