| 摘要 |
PROBLEM TO BE SOLVED: To provide a charging technique respondent to the using situation of a user. SOLUTION: When the user requests login, a login request reception part 32 gives this request to an ID setting part 34, which sets a cookie 50 to the browser of the user. When the user has the cookie 50, an authentication part 36 permits login A session continuity judging part 40 times a time from login until normal logout and forced log-out and gives it to a charging processing part 38.
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