I need someone to create custom WP category which i will use as locations

Avg Bid (EUR)
Project Budget (EUR)
€30 - €250

Project Description:
I need someone to create custom wp category ( different then main wp category) which i will use as locations (countries,cities) in my wordpress theme: http://demos.appthemes.com/vantage/
To be easier to explain i wil name the category which you have to develop: "Locations Category" and default wp category - "Main WP Category"

Lets say i add 2 categories in Main WP Category: "Internet"(url:example.com/internet) and "Business"(url:example.com/bsiness)
Then I add 1 City in Locations Category: "Chicago" (url:example.com/chicago)
So when someone goes to Create Listings page: http://demos.appthemes.com/vantage/create-listing/
and Select Main WP Category: "Internet" and Locations Category: "Chicago" one more category should be created automatically -
So the listing will go into 3 categories:

Skills required:
PHP, Software Architecture, Wordpress
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