Template:Hig-subnav-intra-lang

The 'normal' Template:hig-subnav-intra assumes that all pages are sub-pages of a sub-page (chapter) of Human Interface Guidelines. In other words, the 'root' of navigation is not the guideline itself, but a chapter of it.

This modification assumes not only that, but adds two more things:
 * 1) Translated chapters are sub-pages of the original chapter, and labeled .../lang-xx
 * 2) The title of the chapters are are themselves a sub-page of the translated chapter's sub-page: .../lang-xx/title

The purpose of this is that changing the translation of a chapter's name as simple as changing the contents of the title page (ie: .../lang-xx/title) and all navigation bars and the table of contents remains consistent.

So a 'typical' structure would be:
 * Human Interface Guidelines
 * /aChapterName - the original chapter in english
 * /aSectionName - the original section in english
 * /lang-xx - the translation of the section into language 'xx'
 * /title - the translated title of a section into language 'xx'
 * /anotherSectionName - another original section in english
 * /lang-xx - the translation of another section into language 'xx'
 * /title - the translated title of another section into language 'xx'