protected function NextChild()
    {
        $item = $this->current;
        $this->current = $this->tree->NextOf($item);
        return $item;
    }
protected function NextChild()
    {
        $item = $this->current;
        $this->current = $this->tree->NextOf($item);
        return $item;
    }
protected function NextChild ( ) { $ item = $ this -> current ; $ this -> current = $ this -> tree -> NextOf ( $ item ) ; return $ item ; }
Gets the next child
@return mixed Returns the next tree item
Gets the next child