Help!!!!please!!!!

voila j ai un prob simple que je n arrive pas a resoudre:

Parse error: parse error, unexpected T_STRING in c:\wamp\www\freestyle\auth.php on line 4

voila le code:

<?php
//pass
//
Necessary Variables:

$LOGIN = "admin";
$PASSWORD = "pass";
// En: login /password
// Fr: login / mots de passe

// End Necessary Variables section
/******************************************************************************/

function error ($error_message) {
echo $error_message."<BR>";
exit;
}

if ( (!isset($PHP_AUTH_USER)) || ! (($PHP_AUTH_USER == $LOGIN) && ( $PHP_AUTH_PW == "$PASSWORD" )) ) {
header("WWW-Authenticate: Basic entrer=\"Form2txt admin\"");
header("HTTP/1.0 401 Unauthorized");
error("Unauthorized access...");
}
?>

merci d 'avance........