function toggleDisplay(toShow, theLink, showText, hideText)
{
  // Used to toggle visible/hidden elements
  hiddenDiv = document.getElementById(toShow);
  if(hiddenDiv.style.display == 'none'  ||  hiddenDiv.style.display == '')
  {
    hiddenDiv.style.display = 'block';
    theLink.innerHTML = (hideText == null ? 'Hide' : hideText);
  }
  else
  {
    hiddenDiv.style.display = 'none';
    theLink.innerHTML = (showText == null ? 'Show' : showText);
  }
}

function clearOnFocus(defaultText, theElement)
{
  // Used for clearing/resetting text in a form input/textarea
  if(theElement.value == defaultText)
    theElement.value = '';
  else if(theElement.value == '')
    theElement.value = defaultText;
}