. See hidden link (you can find it in the third yellow underlined text). So I it should display only 6 main parent taxonomies and a default label. How to achieve that?
So what you need to do is to copy this section $(".resizeselect option[value='investicni-diamanty']").hide(); and change the value to match the value that each child option has and it will hide it from the select option.
thanks for help. The code did nothing so I have made some attemps to make it working. And I found out that when I change .load to .ready it works nice. But the problem is when I want to see another page with results (manual transition with AJAX), the child taxonomy will appear again.