Recently added to the marketplace is my new addon Local Nav. Local Nav does for in-page navigation what an Autonav does for in-site navigation.
Local Nav is a block to provide automated indexing and navigation within a page, so is especially useful for long pages.
Configure a few parameters and Local Nav will generate an in page #hash navigation list linking to headings within the page, back links, back to top, #hash history and incoming url#hash navigation.
Local Nav can automatically update with AJAX loaded and generated content and where Magic Tabs is installed can open a tab or accordion navigated into.