function f61 (elId, sp) 
{
  var html = '';
  if (document.all)
  html += 'var el = document.all.' + elId + ';';
  else if (document.getElementById)
  html += 'var el = document.getElementById("' + elId + '");';
  html +=
    'el.style.visibility = ' +
  'el.style.visibility == "hidden" ? "visible" : "hidden"';
  if (document.all || document.getElementById)
  setInterval(html, sp)
}

function i61 (objId, sp)
{
  f61(objId, sp);
}