<div id="graphcomment"></div>
<script type="text/javascript">

  /* - - - CONFIGURATION VARIABLES - - - */

  // make sure the id is yours
  window.gc_params = {
    graphcomment_id: 'Etilmercurio',

    // if your website has a fixed header, indicate it's height in pixels
    fixed_header_height: 0,
  };

  /* - - - DON'T EDIT BELOW THIS LINE - - - */

var url = window.location.href;
var n = url.search("/em/");
if (n<0) {
	document.getElementById("graphcomment").style.visibility='hidden';
  document.getElementById("graphcomment").style.height=0;
}
else
{
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  var gc = document.createElement('script'); gc.type = 'text/javascript'; gc.async = true;
  gc.src = 'https://graphcomment.com/js/integration.js?' + Date.now();
  (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(gc);
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}



</script>

P.S.L.P. : Por si lo preguntan