function clearText(f) {
	f.value = ""
}


function toggleLayer (whichLayer)
{
  setDisplay ('generate_form', 'none');
  setDisplay ('cancel_form', 'none');
  setDisplay ('extend_form', 'none');
  setDisplay ('register_domain_form', 'none');

  if (whichLayer == 'generate_form') {
     setDisplay ('generate_form', 'block');
  } else if (whichLayer == 'cancel_form') {
     setDisplay ('cancel_form', 'block');
  } else if (whichLayer == 'extend_form') {
     setDisplay ('extend_form', 'block');
  } else if (whichLayer == 'register_domain_form') {
     setDisplay ('register_domain_form', 'block');
  }
}

function setDisplay( whichLayer, display )
{
  var elem, vis;

  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  vis.display = display;
}