birthday help

This may be a difficult one.

I've created a seperate add in that will send a birthday card to a user by getting the email addy and user name from the database based on the userid, and also populates the from and from addy from the information of the user, but here is the problem.

On the forumdisplay, I have birthdays enabled and that works great, but I need to be able to get the birthday user id.

For example on forumdisplay it says:
Today's Birthdays: slimblaze , zaxisus , Todd Martin , Jim

After each of the user names I want to have a picture of a greeting card and if you click on it, it takes you to my add in. All I need at this point is the user ids of the person you click on.

Any ideas?

[sifuhall]

I think I found it, and will post it here in case anyone has the same question.

I traced it to functions.php in the function getbirthdays(), then I noticed this was using calendar_showbirthdays, so I'm going to see if I can make my changes there.