> Have you tried assigning the Health Sciences guides to their own groups 
> and
> adding custom header HTML at the group-level (Admin > Groups >
> Header/Footer/Tabs/Boxes)? You can't use the new mustache-based 
> templating
> inside the headers, but you can use plain-jane HTML.

An excellent suggestion!  But, alas, groups are only available in 
LibGuides CMS.  Due to budgetary constraints, we're stuck with the 
regular version.

> Templates are customizable, and those customizations apply to the 
> entire
> page, not just to the content area, although Will's right that with 
> regular
> LibGuides the entire system and all the guides have a single look & 
> feel.

Yes, that's a good clarification -- the template can adjust the whole 
page, not just the content area as I mistakenly wrote.  But there's no 
mechanism for applying a template to a specific page or group of pages 
unless you have LibGuides CMS, so that doesn't help in my case.

I thought about writing some JS to surgically alter the page header 
after load time, determining who was in which library based on guide 
tags.  That would have been like pulling your wallet from your left 
pocket with your right hand -- it'd work, it's just horribly awkward.  
Also I'm pretty certain given my set of librarians that the tags would 
be forgotten or mistyped fairly often, followed by complaints that it's 
broken.  But ultimately, the main reason I shelved the idea was that I'm 
the only web developer the library has -- I have to be chary of my time, 
and other projects took priority.

Will