function openWindow(url,name,w,h) {
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars=yes,resizable=no,menubar=no,toolbar=no,status=no,location=no';
	window.open(url,name,settings);
}