Template:LTP anni switch/doc

This is a documentation subpage for Template:LTP anni switch.
It may contain usage information, categories and other content that is not part of the original template page.

This template is used on the London transport Portal with {{Random subpage}} to force a particular biography to appear on a relevant anniversary date instead of a random biography. If no relevant anniversary date is in the list within the template, the switch will allow {{Random subpage}} to operate normally.
The only parameter is the default to be used when a date match is not made:

When used in the Random subpage start parameter, set this to 1
When used in the Random subpage end parameter, set this to the highest numbered biography found at Portal:London transport/Selected biographies

Example:
{{Random subpage|page=Portal:London transport/Selected biographies|start={{LTP anni switch|1}} |end={{LTP anni switch|15}} |seed=5}}