jquery datepicker flicker issue

When I enable following options

        changeMonth: true,开发者_开发技巧
        changeYear: true,

clicking on button/input field causes whole or a part of page to clicker. It happens only in FF. Any idea what is going on?

Thanks, Pawel

I've managed to upload one page with that issue. Could you please take a look: Flickering datepicker

EDIT: Apparently it's FF bug:

Bug ticket on jQuery UI Bug post