Hide tab/section on a form

Hi,

I try to test the 2013 version, and I would like to hide some tabs/sections (account form) depending on 2 fields' values (radio button).

1/ I've seen many code for this in this forum, which one is the most effective?

2/ When a javascript is defined onload on a form, a user will open this form in edit mode even if the parameter is set to "read-optimized". I don't want that. How can I hide some tabs/sections keeping the read-optimized display?

Thanks for your help