function __construct($ctf, $itemID) 
	{
		parent::__construct($ctf, $itemID);
		$this->isNested = $this->ctf->isNested;
		if($this->ctf->Items()) {
  	  $this->itemList = $this->ctf->Items()->column();
  	  $this->currentIndex = array_search($this->itemID,$this->itemList);
    }
	}
 public function __construct($ctf, $itemID, $versionID)
 {
     $this->versionID = $versionID;
     parent::__construct($ctf, $itemID);
 }