var popWidth = 700;
var popHeight = 500;
var popX = (screen.availWidth - popWidth) / 2;
var popY = (screen.availHeight - popHeight) / 2;
function newWin(vURL, popWidth, popHeight) {
	window.open(vURL,'_blank','width=' + popWidth + ',height=' + popHeight + ',resizable,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,screenX=' + popX + ',screenY=' + popY + ',left=' + popX + ',top=' + popY);
}