function ShowHide(id)
{
   var element = document.getElementById(id);
   if (element.style.display == 'none')
   {
      element.style.display = '';
   }
   else
   {
      element.style.display = 'none';
   }
}

var oldtext;
function ToggleText(element, text)
{
   if (element.innerHTML != text)
   {
      oldtext = element.innerHTML;
      element.innerHTML = text;
   }
   else
   {
      element.innerHTML = oldtext;
   }
}