Menu class id customize module

I recently come across the problem when I was porting one static site to drupal. Drupal will automatically provide a unique class id for every menu items. This is good but it is also very inconvenient to use css to customize the look of every menu item, especially if one wishes to use pictures instead of plain texts for menu items. I did it by add a snippet into the theme.

So I think a module that enable user to customize the menu class id DIRECTLY is useful. This module is also responsible for checking the existing class IDs of menu items to ensure that every id is unique.