function messageWindow(mypage) {
	var width = 500;
	var height = 600;
	var left = (screen.width/2) - width/2;
	var top = (screen.height/2) - height/2;
	winprops = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=yes,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
	window.open(mypage, 'Paysage', winprops);
}