A radio-button group can't work that way because it can't have multiple values selected at the same time. Also, you can't define a custom "On" icon for it.
If you want to achieve it it can probably be done using buttons, but it will require some scripting.
thanks for the reply.
do you give that script please?
this is for an assignment.
please help me.
This is something that will have to be developed especially for this purpose.
If you're interested in hiring someone to do it for you feel free to contact me privately.
i am student. i do not have funds to hire you.
please help me
CHEAT !! Do your own assignment. This will be reported to your college authorities.