function faq(el) {
  var e = document.getElementById(el);
  if (document.getElementById('m'+el))
   {
    var f = document.getElementById('m'+el);
    var addr = document.getElementById("a"+el).value;
   }
  if (!(e.style.display) || e.style.display == 'none')
   {
    e.style.display = 'block';
    if (f) f.innerHTML = '<iframe width="600" height="500" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="'+addr+'&amp;output=embed"></iframe>';
   }
  else
   {
    e.style.display = 'none';
    if (f) f.innerHTML = '';
   }
 }