/*******************************************************
HELP POPUPS
*******************************************************/
var last = '';
var bodyOnClick = null;

function getElement(id)
{
  if (document.getElementById)
	 return document.getElementById(id);
  if (document.all)
	 return document.all[id];
  return null;
}

function show(event, which)
{
  if (which == last)
	 return;

  hide();
  if (bodyOnClick == null)
  {
	 bodyOnClick = document.onclick;
	 if (!bodyOnClick)
		bodyOnClick = "";
		
	 document.onclick = hide;
  }

  getElement(which).style.display = 'block';
  if (window.event)
	 event = window.event;

  event.cancelBubble = true;
  last = which;
}

function hide(event)
{
  if (last != '')
  {
	 getElement(last).style.display = 'none';
	 last = '';
  }
}