Having a A - Z line which includes links to the list of Manufacturers
The module output should use CSS styling. Any letter which has a Manufacturer associated with it should be high lighted.
Clicking on a letter will scroll down (anchor link)on the page to the beginning of the list of Artists who's last name begins with that particular letter.
At the end of the list of name there should be a "back to top" link. Clicking on an artists last name will take the user to an overview page with all the artwork in the store from the particular artist.
The back to top link should be an image button. Name of image button file should be entered in a param field in the module manager
See attached picture for clarification.