function showPerson()
{
  var elem, whichButton;
hideOrg();
  whichButton='regperson';
  if( document.getElementById ) // this is the way the standards work
  {
    elem = document.getElementById(whichButton);
  }
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichButton];
elem.style.visibility='visible';
elem.style.display='block';
}
function showOrg()
{
  var elem, whichButton;
hidePerson();
  whichButton='regorg';
  if( document.getElementById ) // this is the way the standards work
  {
    elem = document.getElementById(whichButton);
  }
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichButton];
elem.style.visibility='visible';
elem.style.display='block';
}

function hidePerson()
{
  var elem, whichButton;

  whichButton='regperson';
  if( document.getElementById ) // this is the way the standards work
  {
    elem = document.getElementById(whichButton);
  }
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichButton];
elem.style.visibility='hidden';
elem.style.display='none';
}
function hideOrg()
{
  var elem, whichButton;

  whichButton='regorg';
  if( document.getElementById ) // this is the way the standards work
  {
    elem = document.getElementById(whichButton);
  }
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichButton];
elem.style.visibility='hidden';
elem.style.display='none';
}