Plug-in "pop-up window with the choice of the city" for

This plugin displays a pop-up window with the choice of the city and is designed for more advanced work of the module "Basic geolocation" (http://construktor.buydigi.ru/itm/Bazovaja+geolokacija+(dlja+skripta+I-Soft+Bizness)/1803183).
It is important to understand that the use of plug-in separately from this module is meaningless.
It causes a pop-up window with the possibility of a serial select the city in the presence of modifications "The country-region-city" (http://construktor.buydigi.ru/itm/Modifikacija+%E2%80%9CStrana-Oblast%27-Gorod%E2%80%9D+dlja+i-soft/1344521?f=n), and if there is no complete list of cities.
An important addition to the basic modification is that the selected item is saved for the entire session, not just on the page with categories, and is available for selection on any page. Also, information about the selected city is also available on any page.
Among other things, plug interacts with the plugin "Universal menu-Index" that allows the user to use the categories on any page of the site is the chosen city, and make the transition to any heading, subheading or podpodrubriku directly onto the page of the city.