Tab behaviour almost perfect

[WillemUXMendix]

I've noticed 2 things:

1. if you click the calendar button to open up the calendar popup the button of course get's focus. When pressing the tab-key to put focus on the next interactive element, it'll go to the input field of the widget (html markup is like that). You would expect it to bypass that one and just put focus on either the month or the first available day.

2. clicking on the 'next' or 'previous' month button will not put the focus there. So if after opening the menu you click on next month and then press tab it'll still go to the input field