Dialog Confirmation before show Datepicker popup

Dialog Confirmation before show Datepicker popup

Hello,

I'm trying to show a dialog confirmation when the user click on my date's input, and if the user choose "No modification", i would not show the datepicker popup.

I searched about beforeShow options and onclick event on my input, but no results.

Can you help me, I'll take every ideas and suggestions ?

Thanks,
Thec,