Description of problem:
Many lists have a sorting mechanism, but also sort in both asc and desc order. This is not obvious, as you have the choose the same option twice to get the inverted sort.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Go to the Glossary list
2. Click Sort, then Alphabetical
list is sorted A-Z
3. Click Sort, then Alphabetical
list is sorted Z-A
The option looks the same. Perhaps an arrow showing direction on the currently selected sorting option would help.