Close MdiChildren

I've got this application that has a MdiParent window in which multiple child forms are opened . I want to close all these forms when the user logs off. Any idea how to do this ?
The part in which the menu gets enabled on sign-in and sign-out works fine but I wanna close all the windows opened up by the previous user .... how do I do this ?

VB Code:

Dim FRM AS Form
For Each FRM in Me.MdiChildren
  FRM.Close
Next

Well , how about closing many forms(not MDI)using For - Each clause??

coolio ..... that works just fine husain. Thanks :D