Manage sections dynamically

Hi All,

I am using following code...

Name InstTest

OutFile 'InstTest.exe'



InstType "Typical"



!include MUI.nsh



!insertmacro MUI_PAGE_LICENSE '${NSISDIR}\license.txt'

!insertmacro MUI_PAGE_COMPONENTS

!insertmacro MUI_PAGE_INSTFILES



!insertmacro MUI_LANGUAGE "English"



Section "Install Java SDK" SEC_1

SectionIn 1 RO

;;;;;;;;;;;;;;

SectionEnd



Section "Install MySQL database server" SEC_2

SectionIn 1 RO

;;;;;;;;;;;;;;

SectionEnd



Section "My Client" SEC_3

SectionIn 1 RO

;;;;;;;;;;;;;;

SectionEnd



Section "-My Server" SEC_4

;;;;;;;;;;;;;;

SectionEnd

Now on run time if user selects 'Typical' then my requirement is to make RO (Read only) first 3 Sections and hide fourth one and if user selects 'Custom' then remove RO (Read only) from first three sections and unhide fourth one.

How it can be done...? Plz send me the solution with code..

Thanks and regards