private Item<T> getItem(int position, int lower, int upper)
	{
		Item<T> pointer;
		
		if (position > upper || position < lower)
		{
			throw new IndexOutOfBoundsException();
		}
			
		if (position < size / 2)
		{
			pointer = start.next;
			for(int i = 0; i < position; i++)
			{
				pointer = pointer.next;
			}
		}
		else
		{
			pointer = end;
			for(int i = size(); i > position; i--)
			{
				pointer = pointer.prev;
			}
		}
		
		return pointer;
	}