dir_all_letters       returns a list of all A-Z letters in uppercase 
dir_alpha_nav_bar       Returns an A-Z bar with greyed out letters not in initial_list and bolds "letter". 
dir_app_group_info       Return a list containing the group_id (lindex 0) and group_name (lindex 1) of the application group associated with the subsite that the current directory package is mounted under. 
dir_navbar_list        
dir_subsite_info       Return a list containing the subsite_id (lindex 0) and subsite_name (lindex 1) of the subsite that the current directory package is mounted under. 

Package Documentation