jQuery datepicker with change month and change year enabled opens and closes the option lists right away

jQuery datepicker with change month and change year enabled opens and closes the option lists right away

Hi,
I have problem with my jQuery datepicker. I have changeMonth and changeYear enabled so that I can choose both from within a list of options. It works fine, but only the first time I click. Say I chose a month and want to choose a year. I click year, the list of years opens, but it closes right away. I need to click it one more time. Same goes for the month list after year is selected, or when I want to reselect a year.

I use jquery 1.10 something and jQuery UI datepicker 4.3.

My code:
          jQuery('#datum_od').datepicker({
            dateFormat : 'dd.mm.yy',
            changeMonth: true,
            changeYear: true
          });
          jQuery('#datum_do').datepicker({
            dateFormat : 'dd.mm.yy',
            changeMonth: true,
            changeYear: true
          });

Thank you for your answers.
Jan