habalsi2014, I would recommend adding it into a global template (such as the Top part or the Bottom part of the website). You can find the list of all templates in the Control Panel » Design » Design customization.
hey i'm joe, please don't call me on my real name because you're gonna misspell or mispronounce it and it drives me nuts
i do not work for the company anymore, sorry for the late replies
pfp by Natalie Butler