The input convert an address from a zip code automatically. It works only in Japanese.
Firstly zipaddr has two sites of zipaddr.com and zipaddr2.com in a service provider. In zipaddr.com, free site, the other are pay sites.
It do the following movement. 1.Wordpress send zip code data as a request and receive an address. 2.zipaddr search DB from a zip code and return jsonp form for prefecture, a city, an address. 3.A pop screen searching to wordpress screen is output. 4.Wordpress bury each data in an address column on the WordPress side.