Change radiobutton in .oninit function

[Satsuki]

Thank for this very good forum, i've learned a lot with it.
Sorry for my bad english, i'm not english native.

so here's my problem:
in my scrip i use radiobutton in a .onselchange function:

section $(SecHP20Name) hp20
WriteRegDWORD ....
WriteRegDWORD ....
sectionend
section /o $(SecHP21Name) hp21
WriteRegDWORD ....
WriteRegDWORD ....
sectionend
section /o $(SecHP51Name) hp51
WriteRegDWORD ....
WriteRegDWORD ....
sectionend

Function .onSelChange
!insertmacro StartRadioButtons $8
!insertmacro RadioButton ${hp20}
!insertmacro RadioButton ${hp21}
!insertmacro RadioButton ${hp51}
!insertmacro EndRadioButtons
FunctionEnd


this works great, but in .oninit function i need to change the default selected radiobutton but if i use sectionsetflags or !insertmacro SelectSection, it select one of the radiobutton without unselect the others one (like if the radiobutton wasn't active).

i hope i've been clear (if not i'll try to be more acurate)

thanks in advance

++