| 摘要 |
PROBLEM TO BE SOLVED: To provide a Web server, a screen control method and a recording medium therefore for controlling the return to a previous screen by the click of 'back button' of a browser. SOLUTION: A session information generation processing part 23a, if it receives a display command to display a sequence of screens, generates session information including a session ID that indicates the transition state of the screen. A session information management part 23b, if it receives the transition command during the display of a series of the screens, updates the session information. A screen control processing part 23c, generates, as a sequence of the screens, the screen information including a transmission means for transmitting a transition command including a session ID corresponding to the next screen, and transmits the information to a network terminal. A session information verification processing part 23g, if it receives the transition command, verifies whether or not it is the transition of a sequence of the screens.
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