All the files related to one hyperdocument reside in a directory tree. Typically there will be an xml subdir with the pages, an icons and images subdir with images, and an applets subdir with applets, including the "Stop" applet. More subdirs can be created as desired.
There is a directory "AHAstandard" containing the DTDs for the different xml files an author needs to create. We briefly describe the syntax of the different files here. In the (toplevel) applets directory there are also two applets that can be used for authoring some of the needed xml files.
The pages of the hyperdocument are typically written as HTML files with some embedded XML tags. A script html2xml is used to convert these files to the "real" XML format. Besides the pages the author must create the following files: