public void addToPosition (int position)
    {
        Node anotherNode = new Node (currentDataValue);
        Node temp;
        Node prior;
        Node after;
        int index;
        if ((position < 1) || (position > (length+1)))
        {
            System.out.println("Position must be a value between 1-" +
                               (length+1));
        }
else
        {
	           // List is empty
             if (head == null)
            {
                if (position == 1)
                {
                    currentDataValue += 10;
                    length++;
                    head = anotherNode;
                }
                else
                    System.out.println("List empty, unable to add node to " +
                                       "position " + position);
            }
            
// List is not empty, inserting into first position.
            else if (position == 1)
            {
                head.previous = anotherNode;
                anotherNode.next = head;
                head = anotherNode;
                currentDataValue += 10;
                length++;
            }
// List is not empty inserting into a position other than the first
            else
            {
                prior = head;
                index = 1;
                // Traverse list until current is referring to the node in front
                // of the position that we wish to insert the new node into.
                while (index < (position-1))
                {
                    prior = prior.next;
                    index++;
                }
                after = prior.next;

// Set the references to the node before the node to be
                // inserted.
                prior.next = anotherNode;
                anotherNode.previous = prior;

                // Set the references to the node after the node to be
                // inserted.
                if (after != null)
                    after.previous = anotherNode;
                anotherNode.next = after;

                currentDataValue += 10;
                length++;
            }
        }
    }