var supportWindow = 0;
function launchSupport(URLStr, left, top, width, height) {
	if (supportWindow) {
		if (!supportWindow.closed) supportWindow.close();
	}
	supportWindow = open(URLStr, 'supportWindow', 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no,copyhistory=yes, width=' + width + ', height=' + height + ', left=' + left + ', top=' + top + ', screenX=' + left + ', screenY=' + top + '');
}