function online user null user int abs user data mysql_fetch_object my

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function online ($user = null)
{
$user = (int) abs($user);
$data = @mysql_fetch_object(
@mysql_query(
"SELECT `id`,`plem`,`online` FROM `user` WHERE `id`='".$user."'"
)
);
?>
<img src="/images/icon/race/<?=($data->plem == 'ogn' ? 0 : 1);?>.png"
style ="<?=($data->online > (time()-3600) ? 'opacity:0.2;' : null);?>"/>
}