if ((($fileWidth gt $maxThumbSize) || ($fileHeight gt $maxThumbSize)) || ($retype eq "yes")) {
	if ($fileWidth gt $fileHeight) { $scalefactor=$maxThumbSize/$fileWidth; }
	else { $scalefactor=$maxThumbSize/$fileHeight; }
	$thumbWidth = int($fileWidth*$scalefactor); $thumbHeight = int($fileHeight*$scalefactor);
}
else {
$thumbWidth=$fileWidth; $thumbHeight=$fileHeight;
}