facebook comments

gistfile1.js

function getElementsByClassName(classname, node)  {
    if(!node) node = document.getElementsByTagName("body")[0];
    var a = [];
    var re = new RegExp('\\b' + classname + '\\b');
    var els = node.getElementsByTagName("*");
    for(var i=0,j=els.length; i<j; i++)
        if(re.test(els[i].className))a.push(els[i]);
    return a;
}

(function(d, s, id) {
  var parent = '[%div_pai%]';
  var container = jQuery(parent)[0];  
  var div = document.createElement('div');
  div.id = 'fb-root';
  container.appendChild(div);
  
  div = document.createElement('div');
  div.className = 'fb-comments';
  div.setAttribute('data-num-posts', [%numero_de_comentarios%]);
  div.setAttribute('data-width', container.offsetWidth);
  var esquema_de_cor = '[%esquema_de_cor%]';
  if (esquema_de_cor != '')
      div.setAttribute('data-colorscheme', esquema_de_cor);
  var URL = document.URL;
  if ([%remover_parametros%]) 
      URL = URL.split('?')[0];
      
  div.setAttribute('data-href', URL);
  container.appendChild(div);
  
  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/all.js#xfbml=1";
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));