public void mouseClicked(MouseEvent me) {
		if (cardTreePanel.getCardTree().getPathForLocation(me.getX(), me.getY()) != null) {
			TreePath selPath = cardTreePanel.getCardTree().getPathForLocation(me.getX(), me.getY());
			if (SwingUtilities.isLeftMouseButton(me) && me.getClickCount() == 2) {
				if (selPath.getPath().length == 3) {
					refComplex.addCard((Card) ((DefaultMutableTreeNode) selPath.getLastPathComponent()).getUserObject());
				}
			}
		}
	}