// Popout window - centred horizontally and vertically
function popWin(w, h, src){
var flyoutPopWin = "";
if (window.screen){
	var AvHeight = screen.availHeight - 28;
	var AvWidth = screen.availWidth - 22;
	var LeftDist = (AvWidth - w) / 2;
	var TopDist = (AvHeight - h) / 2;}
flyoutPopWin=window.open("" + src,"PageTitle","width=" + w + ",height=" + h + ",directories=no,toolbar=no,resizable=yes,menubar=no,scrollbars=yes,left=" + LeftDist + ",top=" + TopDist + ",screenX=" + LeftDist + ",screenY=" + TopDist )}