IsFriend Plugin?

[GameWizard]

I'm looking to create a plugin that will check for the friendship status between users. This feature is available only on the Member Info Page, and I'd like to support this on other pages aswell. Here is the API code which is responsible for this feature:

http://members.vbulletin.com/api/vBu...fetch_userinfo

Notice the "Is the logged in User a friend of this person?" which is the functionality I am seeking. Can anyone help me create a plugin for this? I understand it should use the FETCH_USERINFO_ISFRIEND function, although I may be mistaken.