Mine

<?php
if ($_COOKIE['conn'] == 'ok')
{

?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" lang="fr">
<head>
<link rel="styleSheet" media="screen" type="text/css" href="../style.css" />
</head>
<body id="accueil">
<div id="page">
  <div id="top">
      <h1> </h1>
  </div>
  <div id="navigation">
      <ul>
          <li><a href="logout.php" id="navi-accueil">Déconnexion</a></li>         
      </ul>   
  </div>     
<!--******************CONTENUE************************  -->
      <div id="contenu">
          <div class="post">
                              <h2> Administration</h2>
<?php
include('connect.php');
if (isset($_GET['ida']))
{
//exécution de la requête SQL:
$requete = mysql_query('DELETE FROM article_servicepublic WHERE num_article_sp=\''.$_GET['ida'].'\'')
}
$sql2 = 'SELECT num_article_sp, titre_article_sp, description_article_sp FROM article_servicepublic ORDER BY num_article_sp;' ;
$requete2 = mysql_query( $sql2);
?>
<TABLE>
<CAPTION> Articles Décentralisation/Services publics </CAPTION>
      <?php
  while( $result2=mysql_fetch_object( $requete2 ) )
  { $num_article=$result2->num_article_sp;
  ?>
    <TR>
      <TD><?php echo ($result2->num_article_sp." ".$result2->titre_article_sp); ?></TD>
      <TD><a href="admin.php?ida=<?php echo $num_article; ?>">Supprimer</a></TD>
    </TR>
  <?php
}
?>
</TABLE>
<a href=# onClick="if (getElementById('modif').style.display == 'none') { getElementById('modif').style.display = 'block'; } else { getElementById('modif').style.display = 'none'; }">Ajouter un article</a>

              <div id="modif" style="display:none;">
                              <form name="insertion" action="insertion.php" method="POST">
                                <table>
                                  <tr align="center">
                                    <td>Titre de l'article</td>
                                    <td><input type="text" name="titre_article"></td>
                                  </tr>
                                  <tr>
                                    <td>Description</td>
                                    <td><textarea name="description_article" cols="40" rows="10"></textarea></td>
                                  </tr>

                                  <tr align="center">
                                    <td colspan="2"><input type="submit" value="insérer"></td>
                                  </tr>
                                </table>
                              </form>
             
              </div>

              </div>
      </div>

<!--******************PIED DE PAGE************************  -->

      <div id="footer">
      <p>
          <a href="../administration/logout.php">Déconnexion</a>
      </p>
      </div>
</div>
</body>

</html>

<?php
}
else
{
header("location:identification.php");

}

?>