public function getOrderArticleSelectList($sArtId = null, $sOrderArtSelList = null)
    {
        if ($this->_aOrderArticleSelList === null) {
            $sOrderArtSelList = $sOrderArtSelList ? $sOrderArtSelList : $this->oxorderarticles__oxselvariant->value;

            $sOrderArtSelList = explode(' || ', $sOrderArtSelList)[0];

            $aRet = [];

            if ($oArticle = $this->_getOrderArticle($sArtId)) {
                $aList = explode(", ", $sOrderArtSelList);
                $oStr = getStr();

                $aArticleSelList = $oArticle->getSelectLists();

                //formatting temporary list array from string
                if (count($aArticleSelList) > 0) {
                    foreach ($aList as $sList) {
                        if ($sList) {
                            $aVal = explode(":", $sList);
                            if (isset($aVal[0]) && isset($aVal[1])) {
                                $sOrderArtListTitle = $oStr->strtolower(trim($aVal[0]));
                                $sOrderArtSelValue = $oStr->strtolower(trim($aVal[1]));

                                //checking article list for matches with article list stored in oxOrderItem
                                $iSelListNum = 0;
                                foreach ($aArticleSelList as $aSelect) {
                                    //check if selects titles are equal

                                    if ($oStr->strtolower($aSelect['name']) == $sOrderArtListTitle) {
                                        //try to find matching select items value
                                        $iSelValueNum = 0;
                                        foreach ($aSelect as $oSel) {
                                            if ($oStr->strtolower($oSel->name) == $sOrderArtSelValue) {
                                                // found, adding to return array
                                                $aRet[$iSelListNum] = $iSelValueNum;
                                                break;
                                            }
                                            //next article list item
                                            $iSelValueNum++;
                                        }
                                    }
                                    //next article list
                                    $iSelListNum++;
                                }
                            }
                        }
                    }
                }
            }

            $this->_aOrderArticleSelList = $aRet;
        }

        return $this->_aOrderArticleSelList;
    }