Could you show me a site where ajax-driven country-region-city drop down list is used?

Could you show me a site wher开发者_运维技巧e ajax-driven country-region-city drop down list is used?

hotmail seems to be using one for their signup, it does update the city dropdown depending on the country without refreshing the page, but I don't know if they're using AJAX or something else.

here's a good example ..

Altho the demo seems to be slightly broken there's example code there that you can make work, I'll bet