1. An information processing method for displaying, on a display screen, at least one processing region including a cursor and a link portion in which a link to other information is set, the method comprising: assigning a one of a plurality of links in the processing region on which the cursor is currently positioned to a reference-positioned one of a plurality of operating elements of an operation input device; assigning each other one of the plurality of links in the processing region to an other one of the plurality of operating elements based on a relative direction and a distance between the current position of the cursor on the display screen and positions of the plurality of links in the processing region and a relative position between the reference-positioned operating element and the plurality of operating elements; displaying, in the processing region on the display screen, a reference image for each of the plurality of operating elements to reference each of the plurality of operating elements as assigned to a one of the plurality of links; and in response to an operation input from an assigned operating element, executing processing corresponding to the respective one of the plurality of links assigned to the operating element.