X-Cart forums - Facebook SDK and body tag

Using 4.6.6 and ideal responsive template.

Facebook says:

Include the JavaScript SDK on your page once, ideally right after the opening <body> tag.

What template file has the body tag for all pages?

I have to paste the code below right after the body tag

Code:

 <div id="fb-root"></div>

<script>(function(d, s, id) {

  var js, fjs = d.getElementsByTagName(s)[0];

  if (d.getElementById(id)) return;

  js = d.createElement(s); js.id = id;

  js.src = "//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.4&appId=myappidgoeshere";

  fjs.parentNode.insertBefore(js, fjs);

}(document, 'script', 'facebook-jssdk'));</script>