$datastructure_uid = 0;
$startpage = 1;

while($datastructure_uid == 0 && $search_uid != 0) {
  $findit = mysql_query("SELECT pid, tx_templavoila_ds, tx_templavoila_next_ds FROM pages WHERE uid = $search_uid");
  if(mysql_num_rows($findit)>=1) {
    !$startpage ? $datastructure_uid = mysql_result($findit, 0, 2) : $startpage = 0;
    if($datastructure_uid == 0) $datastructure_uid = mysql_result($findit, 0, 1);
    if($datastructure_uid != 0) {
      $datastructure = mysql_query("SELECT dataprot FROM tx_templavoila_datastructure WHERE uid = $datastructure_uid");
      if(mysql_num_rows($datastructure) >= 1) {
        $dataprod = mysql_result($datastructure, 0, 0);
        $xmlstructure = t3lib_div::xml2array($dataprod);
        return $xmlstructure['ROOT']['dbttvdata'][$search_dbttvfield];
      }
    }
    $search_uid = mysql_result($findit, 0, 0);
  }
  else {
    $search_uid = 0;
  }
}
return '';