JPH11296463A - Marking/redisplay method for home page using frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a home page including a frame for indicating user-intended target information to be directly redisplayed. SOLUTION: When there is a bookmark instruction from a user interface part 1, the storage part 51 of a uniform resource locator(URL) list management part 5 obtains the structures of a home page and of a frame included in the homepage from a list structure management part 3, and retains identification information in a URL list file 4. Also, when there is a homepage redisplay instruction from the user interface part 1, a restoration part 52 of the URL list management part 5 reads the identification information from the URL list file 4, restores the structures of the homepage and of the frame included in the homepage to the list structure management part 3 and allows a homepage display 2 to display the homepage including the frame which displays the target information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for marking and redisplaying a home page, and more particularly to a method for marking and redisplaying a home page using frames.

[0002]

2. Description of the Related Art In a general browser, a homepage to be referred to later is referred to as a URL (Uniform Resource).
(r. Locator). As a result, the user can directly refer to the desired homepage simply by selecting the desired homepage from the bookmark list.

[0003] However, in the case of a homepage using a frame (a function of dividing one screen into a plurality of frames and displaying information on each frame), even if the information displayed in each frame changes, marking is performed. The URL itself may be the same as the URL of the homepage, and it was not possible to directly refer to the homepage including the frame displaying the target information. For this reason, conventionally, it was necessary to repeat the previous operation until the frame displaying the target information is displayed from the first page marked with the URL.

As a prior art document, Japanese Patent Application Laid-Open No.
There is 315168 gazette. The "presentation data conversion apparatus and method" disclosed in this publication converts screen data and text data of presentation data into GIF (GraphicsInterchange).
Format) and HTML (Hyper Text)
Markup Language (HTML) format is converted to Markup Language (HTML) format.
t Markup Language) Although the file name and the like are stored, this is not performed for bookmarking a homepage in a browser, and has a different purpose, configuration, effect, and the like from the present invention.

Another prior art document is disclosed in
There is JP-A-9-101928. The "information providing device" disclosed in this publication is capable of reproducing a moving image in a hyper video format mainly having a data structure by a procedure of merely selecting a link portion, and includes a frame name, HT
Although the ML file name and the like are stored, this is not performed for bookmarking a homepage in a browser, and the purpose, configuration, effects, and the like of the present invention are completely different.

[0006]

In the above-mentioned conventional technique, in the case of a homepage using a frame, a homepage including a frame for displaying target information cannot be directly referred to. There was a problem that the operation performed last time had to be performed again until the frame displaying the target information from the page was displayed. The reason is that even if the information displayed in each frame changes, the URL itself to be marked is the URL of the first home page.

An object of the present invention is to store identification information of a homepage and a frame included therein,
It is an object of the present invention to provide a method for marking / redisplaying a homepage using a frame which allows a homepage including a frame displaying intended information intended by a user to be directly redisplayed even on a homepage where the frame is used. .

Another object of the present invention is to store a home page and a frame included in the home page, so that a home page including a frame for displaying intended information intended by a user even on a home page using the frame. It is an object of the present invention to provide a method for marking and redisplaying a homepage using a frame capable of directly displaying the webpage and displaying such a homepage structure.

[0009]

According to the present invention, there is provided a method for marking and redisplaying a home page using a frame according to the present invention, comprising: a user interface unit for controlling a user interface;
A home page display unit for displaying a home page using a frame in response to a home page display instruction from the user interface unit, and a hierarchical structure of frames of the home page displayed by the home page display unit is managed as a list of structures. List structure management unit,
A URL list file storing identification information of a home page and a frame included therein, and a structure of the home page and a frame structure included in the home page from the list structure management unit in response to a bookmark instruction from the user interface unit. And a storage unit for obtaining the identification information in the URL list file, and reading the identification information from the URL list file in response to a homepage redisplay instruction from the user interface unit to store the identification information in the homepage structure and the homepage. A restoring unit for restoring the structure of the included frame in the list structure managing unit and displaying a home page including a frame for displaying target information on the home page display unit.

[0010] In the homepage marking / redisplay method using the frame of the present invention, when a bookmark instruction is given from the user interface unit, the storage unit is included in the homepage structure and the homepage from the list structure management unit. The structure of the frame to be obtained is obtained, and their identification information is stored in a URL list file. Also,
When a homepage redisplay instruction is issued from the user interface unit, the restoration unit reads the identification information from the URL list file, and restores the structure of the homepage and the structure of the frame included in the homepage to the list structure management unit. A home page including a frame for displaying desired information is displayed on the display unit.

Further, the homepage marking / redisplay method using a frame according to the present invention uses a frame in response to a homepage display instruction from the user interface unit which controls a user interface. A home page display section for displaying a home page, a list structure management section for managing a hierarchical structure of frames of the home page displayed by the home page display section as a list of structures, and identification information of the home page and frames included therein. A URL list file and a structure of the home page and a frame structure included in the home page are obtained from the list structure management unit in response to a bookmark instruction from the user interface unit, and their identification information is stored in the URL list. A storage unit for storing the file in a file, and reading the identification information from the URL list file in response to a homepage redisplay instruction from the user interface unit to read the structure of the homepage and the frame structure included in the homepage into the list structure. The management unit restores the home page display unit to display a home page including a frame for displaying target information, reads out identification information from the URL list file in response to a home page structure display instruction from the user interface unit, and reads the identification information. A restoring unit for restoring the structure of the homepage and the structure of the frame included in the homepage in the list structure management unit and displaying the structure of the homepage including the frame displaying the desired information on the homepage display unit. Characterized by .

In the homepage marking / redisplay method using frames according to the present invention, when a bookmark instruction is given from the user interface unit, the storage unit is included in the homepage structure and the homepage from the list structure management unit. The structure of the frame to be obtained is obtained, and their identification information is stored in a URL list file. Also,
When a homepage redisplay instruction is issued from the user interface unit, the restoration unit reads the identification information from the URL list file, and restores the structure of the homepage and the structure of the frame included in the homepage to the list structure management unit. A home page including a frame for displaying desired information is displayed on the display unit. Further, when there is a homepage structure display instruction from the user interface unit, the restoration unit reads the identification information from the URL list file, and restores the structure of the homepage and the structure of the frame included in the homepage to the list structure management unit. Then, the structure of the home page including the frame for displaying the target information is displayed on the home page display section.

On the other hand, the recording medium of the present invention comprises a computer, a user interface section for controlling a user interface, a home page display section for displaying a home page using a frame in response to a home page display instruction from the user interface section. A list structure management unit that manages the hierarchical structure of the frame of the home page displayed by the home page display unit as a list of structures,
A URL list file for storing identification information of a homepage and a frame included therein, and a structure of the homepage and a structure of a frame included in the homepage are obtained from the list structure management unit in response to a bookmark instruction from the user interface unit. Storage unit for storing the identification information in the URL list file,
Reading the identification information from the URL list file in response to a homepage redisplay instruction from the user interface unit, restoring the structure of the homepage and the structure of the frame included in the homepage to the list structure management unit, A program for functioning as a restoring unit for displaying a home page including a frame for displaying target information on a home page display unit is recorded.

Further, the recording medium of the present invention comprises a computer, a user interface unit for controlling a user interface, a home page display unit for displaying a home page using a frame in response to a home page display instruction from the user interface unit. A list structure management unit that manages the hierarchical structure of the frame of the home page displayed by the home page display unit as a list of structures,
A URL list file for storing identification information of a homepage and a frame included therein, and a structure of the homepage and a structure of a frame included in the homepage are obtained from the list structure management unit in response to a bookmark instruction from the user interface unit. Storage unit for storing the identification information in the URL list file,
Reading the identification information from the URL list file in response to a homepage redisplay instruction from the user interface unit, restoring the structure of the homepage and the structure of the frame included in the homepage to the list structure management unit, A homepage including a frame for displaying desired information is displayed on a homepage display unit, and identification information is read from the URL list file in response to a homepage structure display instruction from the user interface unit, and the structure of the homepage and the homepage are read. A program for restoring the structure of the frame included in the list in the list structure management unit and functioning as a restoration unit for displaying the structure of the home page including the frame displaying the target information on the home page display unit.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a homepage marking / redisplay method using a frame according to the first embodiment of the present invention. The marking / redisplay method for a home page using a frame according to the present embodiment includes a user interface unit 1 that controls a user interface, and a home page using a frame in response to a home page display instruction from the user interface unit 1. , A list structure management unit 3 that manages the hierarchical structure of the frames of the home page displayed by the home page display unit 2 as a list of structures, a new URL and a new URL for each home page and each frame included therein. URL list file 4 for storing identification information including an old URL and a frame name
In response to a bookmark instruction from the user interface unit 1, a structure of the home page and a frame structure included in the home page are obtained from the list structure management unit 3 and their identification information is stored in the URL list file 4. The identification information is read from the URL list file 4 in response to the homepage re-display instruction from the user interface unit 1 and the user interface unit 1, and the structure of the homepage and the frame structure included in the homepage are restored to the list structure management unit 3. And a URL list management unit 5 including a restoring unit 52 for displaying a home page including a frame for displaying desired information on the home page display unit 2.

Referring to FIG. 2, the structure managed by the list structure management unit 3 includes a new URL, an old URL, a frame name, a pointer 1 and a pointer 2.
At first, the same URL is stored as the new URL and the old URL. However, in the case of the first page, the new URL is the URL of the first page, and the old URL is NULL. Pointer 1 is a pointer between frames, and pointer 2 is a pointer to a new frame.

For example, as shown in FIG. 3A, when the home page is composed of a frame (A), a frame (B) and a frame (C), the URL of the first page and the frame name are Index. html and none, the URL and frame name of frame (A) are Frame_a. h
tm and Frame_a, URL of frame (B)
And the frame name is Frame_b. html and F
frame_b, the URL of the frame (C) and the frame name are Frame_c. html and Frame_c.

Each structure ORG, A, B of the first page, frame (A), frame (B) and frame (C)
And C are chained and managed by the pointer 1 as shown in FIG.

In the home page shown in FIG. 3 (a), it is assumed that the contents of the frames (B) and (C) have changed as shown in FIGS. 5 (a) and 5 (b) due to the user's access. That is, it is assumed that the frame (B) is further divided into a frame (E) and a frame (F). It is also assumed that the display content of the frame (C) has been changed.

Then, for example, as shown in FIG. 5B, the URL and frame name of the first page are Inde
x. html and none, the URL and frame name of frame (A) are Frame_a. html and Fla
me_a, the URL of the frame (B) and the frame name are Frame_d. html and Frame_b, the URL of frame (C) and the frame name are Frame_
g. html and Frame_c, the URL of the frame (E) and the frame name are Frame_e. html and Frame_e, and URL of frame (F)
And the frame name is Frame_f. html and F
lame_f.

As a result, the first page, frame (A),
The structures ORG, A, B, C, E, and F of the frame (B), the frame (C), the frame (E), and the frame (F) are chained by the pointer 1 and the pointer 2 as shown in FIG. Managed.

Referring to FIG. 7, the processing procedure for storing the list structure in the storage unit 51 includes a storage processing step S101 in which the argument is a structure of the first page.

Referring to FIG. 8, storage processing step S1
01 is a P1 and P2 setting step S201 and a new URL = old URL comparison step S201.
202, identification information storage step S203, P2 = N
UL determination step S204, storage processing step S205 in which the argument is a structure indicated by P2, and P1 = NULL
It comprises a determination step S206 and a storage processing step S207 in which the argument is a structure indicated by P1.

Referring to FIG. 9, the processing procedure for restoring the list structure of the restoration unit 51 includes an identification information reading step S301, a new structure P creation step S302,
P new URL setting step S303, list structure creation processing step S304 in which the argument is P, identification information presence / absence determination step S305, and identification information reading step S3
06 and P old URL and frame name matching structure setting step S307.

Referring to FIG. 10, a more detailed processing procedure of the list structure creation processing step S304 includes a P structure setting step S401, a P new URL frame existence determination step S402, and a new structure P2 creation step S4.
03, P pointer 2 setting step S404, P2 new / old URL and frame name setting step S405,
List structure creation processing step S406 with argument P2
And P new URL frame presence / absence determination step S407;
New structure P3 creation step S408, P2 pointer 1 setting step S409, P2 = P3 step S41
It consists of 0.

Next, the operation of the homepage marking / redisplay method using the frame according to the first embodiment configured as described above will be described.

(1) The storage unit 51 converts the list structure into a URL.
When saving to the list file 3, the following rules are used. First, the URL of the first page is saved. Next, the new U
Only for the structure in which the RL and the old URL are different, the identification information is further stored. At this time, the identification information to be stored is
The new URL, the old URL, and the frame name.

When storage of a bookmark is instructed through the user interface unit 1, the storage unit 51 of the URL list management unit 5 calls a storage process using the structure of the first page as an argument (step S101).

In the storing process, the pointer 1 of the structure passed as an argument to P1 is set to the pointer 2 of the structure passed as an argument to P2 (step S201), and the new URL and the old URL of the structure are set. (Step S20)
2). If the new URL is different from the old URL, the new URL
URL, old URL and frame name as identification information
It is stored in the list file 3 (step S203).

Next, in the storage processing, it is determined whether or not P2 is NULL (step S204), and if not, the storage processing is recursively called as a structure indicated by P2 (step S205).

Subsequently, in the storage processing, it is determined whether or not P1 is NULL (step S206), and if not, the storage processing is recursively called as the structure indicated by P1 (step S207).

Then, in step S204, P2 is set to NULL.
L, when P1 becomes NULL in step S206, it means that the homepage managed by the list structure management unit 3 and the identification information of the frame included in the homepage are all stored in the URL list file 4.

(2) The restoration unit 51 converts the list structure into a URL
When restoring from the list file 3, the following rules are used. First, the identification information of the first page is read, and a structure is created from the identification information. Next, if there is still identification information in the URL list file 3, the identification information is read, a structure whose frame name matches the old URL of the read identification information is searched, and the new URL of the structure is rewritten. A new structure is derived from the rewritten new URL. When the structure list structure is restored, the home page display unit 2 displays the structure of the first page in order from the URL, so that the home page including the frame displaying the information desired by the user is displayed. Will be displayed.

When a homepage redisplay instruction is issued through the user interface unit 1, the restoring unit 51 of the URL list management unit 5 reads the identification information from the URL list file 3 (step S301) and creates a new structure P (step S301). S302).

Next, the restoring unit 51 sets the new URL read from the URL list file 3 as the new URL of the structure P (step S303), and calls the list structure creation processing with the argument as the structure P (step S304).

In the list structure creation processing, the structure passed by the argument is set to P (step S401), and the new UR of P is set.
It is determined whether there is a frame on the home page indicated by L (step S402). Without a frame,
The process ends immediately.

If there is a frame, a new structure is created and pointed to by the pointer P2 (step S403).
The head address of the structure pointed to by the pointer P2 is set to the pointer 2 of the structure P (step S404).

Next, the URL of the frame found on the homepage indicated by the new URL of the structure P is pointed to by the pointer P2.
Are the new URL and the old URL of the structure pointed to by, and the frame name of the frame found on the homepage indicated by the new URL of the structure P is set as the frame name of the structure pointed to by the pointer P2 (step S405).

Subsequently, the list structure creation processing is recursively called using the structure pointed to by the pointer P2 as an argument (step S406).

Next, it is determined whether or not there is still a frame on the home page indicated by the new URL of the structure P (step S407). If there is no frame, the process ends.

If there is a frame, a new structure is created and set as P3 (step S408), and the start address of the structure P3 is set as the pointer 1 of the structure indicated by the pointer P2 (step S409).

Subsequently, the pointer P2 is set so as to point to the structure P3 (step S410), and the process proceeds to step S410.
The control is returned to 405, and steps S405 to S410 are repeated until there is no frame on the home page indicated by the new URL of the structure P in step S407.

When there is no frame in the homepage indicated by the new URL of the structure P in step S407, the structure of all frames of the homepage indicated by the new URL of the structure P is restored to the list structure management unit 3. That is, the homepage including a frame for displaying the information intended by the user is directly displayed again by the homepage display unit 2.

In the first embodiment, the restoration unit 52 performs the processing shown in FIGS. 9 and 10 in response to a homepage redisplay instruction from the user, and the homepage display unit 2 displays Although it has been described that the homepage including the frame displaying the information is directly redisplayed, the restoring unit 52 performs the same processing in response to the homepage structure display instruction from the user, and the homepage display unit 2 intends the user. The structure of a home page including a frame for displaying desired information may be displayed.

For example, FIG. 11 shows the structure of a home page composed of the frames (A), (B) and (C) shown in FIGS. 3 (a) and (b), including a frame name and an HTML file name. This is displayed as a box list structure.

FIG. 12 shows FIGS. 5A and 5B.
The structure of the home page including the frame (A), the frame (B), the frame (C), the frame (E), and the frame (F) shown in FIG. 1 is displayed as a list structure of a box including a frame name and an HTML file name. It was made.

Next, a second embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 13, a homepage using a frame according to the second embodiment of the present invention uses a data processing device 10, an input device 20 such as a keyboard and a mouse, and the like. An output device 30 such as a display or a printer, a storage device 40, and a recording medium 50 for recording a browser program constitute a main part thereof. The recording medium 50 may be a magnetic disk, a semiconductor memory, or another recording medium.

The browser program is read from the recording medium 50 into the data processing device 10 and is read from the data processing device 10.
Is controlled as a user interface unit 1, a home page display unit 2, a list structure management unit 3, and a URL list management unit 5, and a URL list file 4 is created on the storage device 40. The operation of each unit of the data processing device 10 under the control of the browser program is exactly the same as the operation of each unit in the homepage marking / redisplay method using the frame according to the first embodiment shown in FIG. Therefore, detailed explanation is omitted.

[0051]

As described above, according to the present invention,
Even in the case of a homepage using a frame, there is an effect that a homepage including a frame displaying information intended by a user can be directly referred to. The reason is that a URL list file is provided, and the homepage and the identification information of each frame included therein are stored,
This is because the list structure of the home page and the frames included therein can be restored at any time.

Further, according to the present invention, even in the case of a homepage using a frame, the homepage including the frame displaying the information intended by the user can be directly referred to, and the structure of such a homepage is displayed. There is an effect that can be. The reason is that a URL list file is provided, the home page and the identification information of each frame included therein are stored, and the list structure of the home page and the frames included therein can be restored at any time.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a homepage marking / redisplay method using a frame according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a structure managed by a list structure management unit in FIG. 1;

FIG. 3A is a diagram showing a home page including a plurality of frames, and FIG. 3B is a diagram showing the URL and frame names of the home page and the frames included therein.

4 is managed by a list structure management unit in FIG. 1; FIG.
It is a figure which shows the list structure of the homepage of (a) and (b), and the structure of the frame contained in it.

FIG. 5A is a diagram illustrating a homepage including a plurality of frames, and FIG. 5B is a diagram illustrating the URL and a frame name of the homepage and the frames included therein.

6 is a diagram managed by the list structure management unit in FIG. 1;
It is a figure which shows the list structure of the homepage of (a) and (b), and the structure of the frame contained in it.

FIG. 7 is a flowchart showing a procedure for storing a list structure in a storage unit in FIG. 1;

FIG. 8 is a flowchart showing a more detailed processing procedure of the storage processing in FIG. 7;

FIG. 9 is a flowchart showing a procedure for restoring a list structure in the restoration unit in FIG. 1;

10 is a flowchart showing a more detailed processing procedure of the list structure creation processing in FIG.

FIG. 11 is a diagram showing a display example of the structure of the homepage shown in FIGS. 3 (a) and 3 (b).

FIG. 12 is a diagram showing a display example of the structure of the homepage shown in FIGS. 5 (a) and (b).

FIG. 13 is a diagram showing a configuration of a homepage marking / redisplay method using a frame according to the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 User interface part 2 Homepage display part 3 List structure management part 4 URL list file 5 URL list management part 10 Data processing device 20 Input device 30 Output device 40 Storage device 50 Recording medium 51 Storage part 52 Restoration part

Claims (9)

[Claims] 1. A user interface section for controlling a user interface; a home page display section for displaying a home page using a frame in response to a home page display instruction from the user interface section; A list structure management unit that manages a hierarchical structure of frames of a home page as a list of structures; a URL list file that stores home page and identification information of frames included therein; and the list in response to a bookmark instruction from the user interface unit A storage unit for obtaining a structure of the homepage and a frame structure included in the homepage from a structure management unit and storing their identification information in the URL list file; and a homepage from the user interface unit. The identification information is read from the URL list file in response to the display instruction, the structure of the homepage and the structure of the frame included in the homepage are restored to the list structure management unit, and the target information is stored in the homepage display unit. And a restoring unit for displaying a homepage including a frame to be displayed. A method for marking / redisplaying a homepage using a frame. 2. A user interface section for controlling a user interface; a home page display section for displaying a home page using a frame in response to a home page display instruction from the user interface section; A list structure management unit that manages a hierarchical structure of frames of a home page as a list of structures; a URL list file that stores home page and identification information of frames included therein; and the list in response to a bookmark instruction from the user interface unit A storage unit for obtaining a structure of the homepage and a frame structure included in the homepage from a structure management unit and storing their identification information in the URL list file; and a homepage from the user interface unit. The identification information is read from the URL list file in response to the display instruction, the structure of the homepage and the structure of the frame included in the homepage are restored to the list structure management unit, and the target information is stored in the homepage display unit. Display the home page including the frame to be displayed,
The identification information is read from the URL list file in response to a homepage structure display instruction from the user interface unit, and the structure of the homepage and the frame structure included in the homepage are restored to the list structure management unit, and the homepage is restored. A restoring unit for displaying a structure of a home page including a frame for displaying target information on a display unit; and a marking / redisplay method for a home page using a frame. 3. The homepage using a frame according to claim 1, wherein the structure comprises a new URL, an old URL, a frame name, a pointer between frames, and a pointer to the new frame. Marking / redisplay method. 4. The method according to claim 1, wherein the identification information comprises a new URL, an old URL, and a frame name. 5. The processing of the storage unit stores identification information of the homepage in the URL list file,
3. The method for marking and redisplaying a homepage using a frame according to claim 1 or 2, wherein storing the identification information only recursively is repeated only for frames having a structure in which the RL and the old URL are different. . 6. A process for instructing the restoring section to redisplay a home page includes reading the identification information of the home page from the URL list file to create a structure,
If there is still identification information in the L list file, the identification information is read, a structure having the same identification information as the old URL and the frame name is searched, and the new URL of the structure is rewritten. 2. The method according to claim 1, wherein deriving a new structure is recursively repeated.
Or a method for marking and redisplaying homepages using the frames described in 2. 7. The processing of the restoration unit when instructing display of a home page structure includes reading the identification information of the home page from the URL list file to create a structure,
If there is still identification information in the RL list file, the identification information is read out, a structure having the same identification information as the old URL and the frame name is searched, and the new URL of the structure is rewritten. 3. The frame according to claim 2, wherein the derivation of a new structure is recursively repeated, and the list structure of the structure is displayed as a list structure of a box including a frame name and an HTML file name. Marking and redisplay method of the homepage you are doing. 8. A computer, comprising: a user interface unit for controlling a user interface; a home page display unit for displaying a home page using a frame in response to a home page display instruction from the user interface unit; List management unit that manages the hierarchical structure of the frames of the homepage as a list of structures, a URL list file that stores the homepage and the identification information of the frames included therein, and the list structure in response to a bookmark instruction from the user interface unit. A storage unit for obtaining the structure of the homepage and the frame structure included in the homepage from the management unit and storing their identification information in the URL list file; Read the identification information from the URL list file in response to the homepage display instruction, restore the structure of the homepage and the structure of the frame included in the homepage to the list structure management unit, and set the homepage display unit as the target. A recording medium recording a program for functioning as a restoring unit for displaying a home page including a frame for displaying information. 9. A computer, comprising: a user interface section for controlling a user interface; a home page display section for displaying a home page using a frame in response to a home page display instruction from the user interface section; List management unit that manages the hierarchical structure of the frames of the homepage as a list of structures, a URL list file that stores the homepage and the identification information of the frames included therein, and the list structure in response to a bookmark instruction from the user interface unit. A storage unit for obtaining the structure of the homepage and the frame structure included in the homepage from the management unit and storing their identification information in the URL list file; Read the identification information from the URL list file in response to the homepage display instruction, restore the structure of the homepage and the structure of the frame included in the homepage to the list structure management unit, and set the homepage display unit as the target. A home page including a frame for displaying information is displayed, identification information is read from the URL list file in response to a home page structure display instruction from the user interface unit, and a structure of the home page and a frame structure included in the home page are read. A recording medium storing a program for causing the list structure management unit to function as a restoration unit for displaying a structure of a homepage including a frame for displaying target information on the homepage display unit.