DayMonthInput example:

```js
initialState = {
	startDate: {
        'day': 10,
    	'month': 6
    }
};

<div>
	<p>{JSON.stringify(state)}</p>
	<DayMonthInput
		name="startDate"
		value={{
			day: state['startDate'].day,
			month: state['startDate'].month
		}}
		onChange={value => setState(value)}
	/>
</div>
```