The three pertinent files in this directory are:

• index.htm
• catalog1.htm
• catalog2.htm

There are text versions of these files for browsers that will not display JavaScript:

• index.txt
• catalog1.txt
• catalog2.txt

These files have internal documentation which should allow you to modify them easily. After saving, open each file with a text editor to view the documentation. After modifying the files, be sure to save them as text files.