Date index for Nov 2003

Hi,

How do I get a list of employees working under supervisor 'X'?
I need to generate a list of weeknumbers, of the employees working under supervisor 'X'.
So that the supervisor can see their weekly timereg's, the same layout as he see's his own weekly timereg.	

I'm now modifying the time registration module, so that supervisors can check their employees weekly timereg's.
And being able to accept or decline them.
But I can't find a way to give the supervisors some extra links. Even how to determine what employees should be listed.
Are there some existing functions for this ?
Or should I do some queries with the getrows() function

Greets,
Jeroen van Wissen