// Facebook share
function fbs_click(){
  u=location.href;
  t=document.title;
  window.open(
    'http://www.facebook.com/sharer.php?u=' + encodeURIComponent(u) + '&t='+encodeURIComponent(t),
    'sharer',
    'toolbar=0,status=0,width=626,height=436');
  return false;
}

function add_script(script_uri){
  var script = document.createElement('script');
  script.type = 'text/javascript';
  script.async = true;
  script.src = script_uri;
  var s = document.getElementsByTagName('script')[0];
  s.parentNode.insertBefore(script, s);
}