Dynamically set min & max on onSet

Hello!

I have 2 date pickers, one is for start date and one is for end date. When I change start date, I want to set min on end date to that value. So users can't set an end date that is before the start date.

``` javascript
onSet: function(thingSet) {
if(thingSet.select){
end_picker.set({
'min': start_picker.get('value'),
'max': false
});
}
}
```

I have verified that start_picker and end_picker are correctly set (onStart). I have tried calling render, start and stop after setting but min is not changed.

Is there a way to accomplish what I want?

Thanks in advance!
/Dennis