Register in a popup
I have my forum and comments embedded in my primary website. If a customer wants to register for the forum the link takes them away from my e-commerce site and to where the forum is being hosted. I need a way for the new user registration to be done in a popup box. I found an old post from 2013 but the information was either outdated or I am just too simple to implement it. Any help would be appreciated. I'm not a coder so details are very appreciated.