At the weekend, taking advantage of a chance, with the WG (blog) Development of the city selection plugin changed a mobile terminal can be directly used by the city selection plug-in.
The original plugin was written based on the original JavaScript, thanks to the author first.
I do just follow the KFC registered members of the interactive effect of the page to change the interface, at the same time to change the trigger effect to the KFC registration page similar interactive effect, the source program does not rely on jquery but I do a simple interaction when lazy use of jquery so, If you want to use this plugin you can completely replace some of the events I wrote to register.
Detailed because I did not change big, so also not PO details, specific project code I posted here.
Https://github.com/vincent-xw/mobile-city-selector
Mobile City Select JavaScript Plugin (modified version of the WG-based City selection plugin)