Shopping system

A shopping system in which a client purchases a merchandise by accessing a server which controls one or more shops, wherein:

• said server comprises display means for displaying, at the client, a balance between a budget which is input at the client and a total cost of merchandises which are to be purchased and selected at the client, with a visually recognizable format on a screen.

An information terminal which forms a client in a shopping system in which the client purchases merchandises by making access to a server which manages one or more shops and displays on a single screen at the client a merchandise shelf including icons of a plurality of merchandises and a shopping cart, comprising:

• selecting means for selecting an icon of a merchandise to be purchased on the single screen by a drag-and-drop to put the selected icon in the shopping cart, so as to notify the purchased merchandise to the server;
• and
• display means, responsive to the server, for moving the selected icon of the merchandise from the merchandise shelf into the shopping cart to display the selected icon in the shopping cart, displaying a balance between a budget and a total cost of the merchandises within the shopping cart with a format visually recognizable on the single screen, and displaying a display urging input of the budget on the single screen or on a different screen.