how disable resolve case action button or menu item in dynamics crm 2015

Hi,

I'm trying by scripting to disable or enable resolve case action button in dynamics crm 2015.

i 've seen this solution document.getElementById('_MIresolve') to access to the menu in dynamics crm 4.0, and by style to display or not. But i don't how to do the same for dynamics crm 2015.

Thanks for your reply

Regards