function popNewWinCentered(url,h,w)	{
	if (typeof h != "number") {var h = 364;}
	if (typeof w != "number") {var w = 360;}
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	popWin = window.open(url,'_newWin','top='+TopPosition+',left='+LeftPosition+',toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=yes,copyhistory=no,scrollbars=yes,width='+w+',height='+h);
	popWin.focus();
}