Drop shadows and ImageMagick

I have made yet another addition to my ImageMagick util.php.
This time with the addition of drop shadow creation for thumbnails.

If you aren't using ImageMagick, or don't want to use ImageMagick,
this post is not for you so please move along ;-P

Instructions are in <!-- BBCode Start --><A HREF="http://www.sexorcisto.net/gallery-patch/util-shadow.zip" TARGET="_blank">the zipfile</A><!-- BBCode End --> otherwise you can <!-- BBCode Start --><A HREF="http://www.sexorcisto.net/gallery-patch/dropshadows.txt" TARGET="_blank">read it here</A><!-- BBCode End -->.
As always, my current stand-alone, usually in-progress <!-- BBCode Start --><A HREF="http://www.sexorcisto.net/gallery-patch/util.phps" TARGET="_blank">util.php</A><!-- BBCode End --> is here.

Please, do not ask any questions until AFTER you have read the instructions.
Also, please don't ask me to add to and/or customize it for you.

Oh, and if you want to see it in action, <!-- BBCode Start --><A HREF="http://www.sexorcisto.net/gallery/" TARGET="_blank">go here.</A><!-- BBCode End -->