Template:Infobox/select/doc

Usage
This is a subtemplate of infobox. It takes from one to twelve unnamed parameters, and returns one of them. As of this writing, the selection should rotate once an hour, based on the  magic word, and infobox/p2 uses it to select from multiple images.

Internals
When there is more than one image to choose from, this template calls infobox/select2. The call to  is isolated in the other template, so that it never occurs in the expansion of any infobox with only one image, and the wiki software shouldn't have to be at all clever to avoid recomputing the infobox on the hour.