public void levelThreadedPrint(ThreadedTreeNode<E> currentNode, int depth)
        {
			String tabs = "";
			for(int i=0;i<depth;i++)
				tabs = tabs + "\t";
			if(currentNode == null)
			{
			System.out.println(tabs+"null");
			return;
			}
			
			levelThreadedPrint(currentNode.getLeft(),depth+1);

			System.out.println(tabs+currentNode.getData());
			if(!currentNode.getIsThreaded())
			{
				levelThreadedPrint(currentNode.getRight(),depth+1);
			}
			
        }
		public void levelThreadedPrint()
		{
			levelThreadedPrint(root,0);
		}