// Function to launch a centred window with no toolbars

function onw(url, w, h)
{

	if(w == null)
	{
		w = 650;
	}
	
	if(h == null)
	{
		h = 650;
	}
	
  var hpos = (screen.width / 2) - (w / 2);
  var vpos = (screen.height / 2) - (h / 2);
	var theWindow = window.open(url, 'infobox', 'width=' + w + ',height=' + h + ',scrollbars=yes,toolbar=no,status=no,menubar=no,resizable=no,left=' + hpos + ',top=' + vpos + ',alwaysRaised=1');
  theWindow.focus();
	
}

function onwns(url, w, h)
{

	if(w == null)
	{
		w = 650;
	}
	
	if(h == null)
	{
		h = 650;
	}

  var hpos = (screen.width / 2) - (w / 2);
  var vpos = (screen.height / 2) - (h / 2);
	var theWindow = window.open(url, 'infobox', 'width=' + w + ',height=' + h + ',scrollbars=no,toolbar=no,status=no,menubar=no,resizable=no,left=' + hpos + ',top=' + vpos + ',alwaysRaised=1');
  theWindow.focus();
	
}