Making Tk() as modal dialog

[Arun KUmar]

hai,

i want to make the Tkinter.Tk() instance as modal window :
 i.e:
     1. It should not be resizable
     2. It should not be movable on the screen
     3. it should not be able to minimize or iconify
    

how to do this?
if any body has already got answers , please help me.

bye
arun