Custom ***last_day*** tag

[druids]

So I have been wracking my brain trying to figure this out. For my comic I don't want to have the index/home page be the "last day" of the comic. I would rather drive users to the actual HTML page generated by the most recent page. We do this so we can keep track of comments on a per page basis (which is done via the URL).

So my question is: Is there anyway to define a static value for the last_day instead of having it reference index.html? Either via CSS or Javascript. I'm not sure how these tags are generated but from what I can tell last_day is always index.html.

Any assistance would be nice. Thanks.