We should have a system such that Koha Plugins can inject HTML into a given script template. It would be nice if we could specify in a plugin methods with a naming scheme that tells Koha which page to put the html on ( e.g. html_staff_mainpage would inject html into the mainpage.pl template ). More detailed work such as putting it in the correct place could be handled by the js injection in bug 17490.
*** This bug has been marked as a duplicate of bug 21352 ***