var blinking_elements=document.getElementsByName("peter");
for (var a in blinking_elements)
{
  if(blinking_elements[a])
  {
    try
    { blinking_elements[a].style.visibility = 'hidden'; }
    catch(e)
    { }
  }
}

window.setTimeout("showText()", 5000);


function showText()
{
  for (var a in blinking_elements)
  {
    if(blinking_elements[a])
    {
      try
      { blinking_elements[a].style.visibility = 'visible'; }
      catch(e)
      {}
    }
  }
}