public void insert(int elementNum, String stringPart, Image imagePart, Style elementStyle)
public void insert(int elementNum, String stringPart, Image imagePart)
	public void insert(int elementNum, String stringPart, Image imagePart, Style elementStyle)	{		ChoiceItem item = new ChoiceItem( stringPart, imagePart, this.choiceType, elementStyle );		add(elementNum, item);	}