rootNode = new MatrixTreeNode(this, linkid, getLinkType(assetElement), null, null, null);
rootNode = new MatrixTreeNode(this, linkid, getLinkType(assetElement), null, null, null, 0);
	public RootFolder(Element assetElement) {		super(assetElement.getAttribute("assetid"));		String linkid = processAssetXML(assetElement, true);		rootNode = new MatrixTreeNode(this, linkid, getLinkType(assetElement), null, null, null);		addNode(rootNode, linkid);	}