Help adding tracking code for socialmedia in Facebookshare button

Hi guys,

I'm trying to include a javascript code for socialmedia tracking with de facebook share module, i'm kind of lost, all the howto's says that if you want to include the fb share button u need a div with "fb-root" as id, but i can't find it anywhere in the page's source code.

This is the howto i'm using:

http://www.ian-thomas.net/tracking-social-engagement-with-google-analytics/

I'm using something like this to include the js files:

if (module_exists('facebookshare')) {
           drupal_add_js(path_to_js);
           $variables['scripts'] = drupal_get_js();
	 }

Any ideas ??

Thx in advance,

Elkin.