$categorie = NULL;

$query_ca =' SELECT j.id id, j.cat cat, p.id_t id_t, p.nom nom , p.id di
FROM categorie j
LEFT JOIN forums p
ON j.id = p.id_t';

$list_cca = mysql_query($query_ca);
while($row_ca = mysql_fetch_assoc($list_cca))
{
		
if( $categorie != $row_ca['id'] )
    {
	$categorie = $row_ca['id'] ;
	
	if ( $categorie == $row_ca['id_t'] )
	{
		$info_cat = '<tr>
					<td width="100%" colspan="3" align="center" class="i">
						'. stripslashes(htmlspecialchars($row_ca['nom'])) .'
					</td>	
				</tr>';
	}
	
	$Tpl->assign_block_vars('cat', array (
	'CAT_FORUM'						=> '<fieldset >
										<legend class="moyen" style="font-weight:bold">
											<span class="moyen"><img src="./img/sys/rep.gif" alt="" />'. stripslashes(htmlspecialchars($row_ca['cat'])) .'</span>
 										</legend>
											<table cellpadding="4" cellspacing="5" border="0" width="100%" class="t">

												'. $info_cat  .'
			
											</table></fieldset>',
	));
	}
}