function getArticles($ignore_offlines = false)
 {
     return OOArticle::getArticlesOfCategory($this->_id, $ignore_offlines, $this->_clang);
 }
 function getRootArticles($ignore_offlines = FALSE, $clang = FALSE)
 {
     return OOArticle::getArticlesOfCategory(0, $ignore_offlines, $clang);
 }
 function getRootArticles($ignore_offlines = false, $clang = false)
 {
     global $REX;
     if ($clang === false) {
         $clang = $GLOBALS[REX][CUR_CLANG];
     }
     return OOArticle::getArticlesOfCategory(0, $ignore_offlines, $clang);
 }
 function getArticles($ignore_offlines = true)
 {
     return OOArticle::getArticlesOfCategory($this->_id, $ignore_offlines);
 }