public void addLeft() {
		int rows[] = types.getSelectedIndices();
		if (rows.length != 0) {
			for(int i : rows) {
				AccountType type = allTypes.get(i);
				if (!debitTypes.contains(type)) {
					debitTypes.add(type);
					debitModel.addElement(type);
				}
			}
		}
	}