To solve such a problem that the note or the like on a settlement screen can not be sufficiently comprehended occasionally when purchasing a commodity by accessing the home page of a language different from the mother tongue on the Internet.

A language processing server 20 is connected via a communication line to a terminal server 10. The language processing server 20 stores settlement screen data 22A prepared in a language A, settlement screen data 22B prepared in a language B and settlement screen data 22C prepared in a language C. When a communication terminal 1 accesses commodity screen data 21 and reads an article picture and the purchase of a commodity is determined, any one of languages A, B and C is selected. Thus, a language selection request is outputted to the terminal server 10. In the terminal server 10, the settlement screen data in the language designated from the language processing server 20 are drawn and these settlement screen data are replaced with settlement screen data 22 and sent to the communication terminal 1.