$shelf = new Shelf();
$shelf->setUserID($_COOKIE['userID']);
$shelf->setPID($_data['PID']);
$shelf->getShelfItem();
$cited_stat = intval($shelf->getCitedStat());
$access_stat = intval($shelf->getAccessStat());
$visible = $shelf->getVisible();
if($visible || $access_stat)
{
$shelf->setCitedStat(0);
$shelf->UpdateArticleInShelf();
}else{
$shelf->removeArticleFromShelf();
}
?>
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