Patent ID: 8719104

Claim:
One or more computer-readable media storing computer-executable instructions that, when executed on one or more processors, perform acts comprising: serving a user interface that includes: a photographic image provided by a user that illustrates multiple items; information that is associated with the multiple items and from an electronic catalog, where each of the multiple items in the photographic image is associated with an item in the electronic catalog of a merchant site, at least one of the multiple items in the electronic catalog available for purchase in different sizes; one or more sliders, each of the one or more sliders corresponding to at least one of the multiple items; and an icon that, when selected, initiates purchase of the multiple items in the electronic catalog; in response to detecting manipulation of a slider of the one or more sliders, substituting an alternative item for a corresponding item by overlaying an image of the alternative item over a portion of the photographic image that includes the corresponding item, the alternative item having at least one different characteristic than the current item, the different characteristic including one of a size, a color, or a price; receiving an indication that a user of the merchant site has selected the icon to request the purchase of the multiple items in the electronic catalog, the multiple items including the alternative item; determining at least one item size associated with the user; and initiating the purchase of the multiple items in the electronic catalog, the purchase including the at least one item available for purchase in multiple sizes in the item size associated with the user.