THIS IS THE CODE
print "Vous pouvez maintenant y répondre [<a href='administrateur.php?action=repondre&id=$ID'>ICI</a>]<br>";
print "Revenir a la [<a href='administrateur.php?action=retourprincipal'>Page Précédente</a>]<br>";
}
if ($action == "repondre") {
$sql = "SELECT * FROM messages WHERE ID='$ID'";
$query = mysql_query($sql) or die("Impossible de se connecter a la database.<br>" . mysql_error());
$result = mysql_fetch_array($query);
$message = stripslashes($result["Message"]);
$prenom = stripslashes($result["Prenom"]);
$nom = stripslashes($result["Nom"]);
$email = stripslashes($result["Email"]);
if(!empty($reponse)) {
mail("$email", "Réponse de votre question num : $id", "$reponse");
} else {
?>
<form name="reponse" method="post" action="repondremessage.php?action=repondre&id=<?php print "$ID"; ?>">
<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber1">
<tr>
<td width="30%">Votre Reponse :</td>
<td width="70%"><textarea name="reponse"></textarea></td>
</tr>
</table>
<input type="submit" name="Submit" value="Submit">
</form>
<?php
}
?>
<?php
}