country> state > city reduce to state > city – how ?

Hi,

I am trying to reduce search cryteria and skip the counties option.
My business is based in the uk and there is no point of heaving 1000 countries in the dropdown.
I tried to reduce in the “advanced search tab” by skipping “countries” and tying up the file class_search.php but the search feature is not working at all then…

How can I have only UK counties and all the cities in the advanced search tab?