PHP nic nevypisuje -> ani chybu ani echo

$dotaz_podmenu = MySQL_Query("SELECT ID_zbozi FROM akce LIMIT 2");
while ($clen = mysql_fetch_object($dotaz_podmenu)) {

$id_zbozi = $clen->ID_zbozi;

$dotaz_podmenu2 = MySQL_Query("SELECT Nazev,Obr_maly,Podkategorie_ID FROM zbozi WHERE ID_zbozi=$id_zbozi");
while ($clen2 = mysql_fetch_object($dotaz_podmenu2)) {

$id_podkategorie = $clen2->Podkategorie_ID;

$dotaz_podmenu3 = MySQL_Query("SELECT Cena FROM zbozi_velikosti WHERE ID_zbozi=$id_zbozi LIMIT 1");
while ($clen3 = mysql_fetch_object($dotaz_podmenu3)) {

$dotaz_podmenu4 = MySQL_Query("SELECT Kategorie FROM podkategorie WHERE ID_podkategorie=$id_podkategorie");
while ($clen4 = mysql_fetch_object($dotaz_podmenu4)) {
$id_kategorie = $clen4->Kategorie;
}

$dotaz_podmenu5 = MySQL_Query("SELECT Nazev_nediakritika FROM podkategorie WHERE ID_podkategorie=$id_kategorie");
while ($clen5 = mysql_fetch_object($dotaz_podmenu5)) {

$url_zbozi = title2pagename("$clen2->Nazev");
echo "<div class=\"akce_real\"><a href=\"".$clen5->Nazev_nediakritika."/detail.php?id=".$id_zbozi."\"><img src=\"".$clen5->Nazev_nediakritika."/obr-zbozi/".$url_zbozi."/".$clen2->Obr_maly."\"></a><div class=\"cena\">".$clen3->Cena.",- Kč</div></div>";


}
}
}
}