<APPLET CODE="bkk.class" WIDTH=256 HEIGHT=256>
<PARAM NAME="author" VALUE="N.I">
<PARAM NAME="foregroundimage" VALUE="bk1.jpg">
<PARAM NAME="backgroundimage" VALUE="bk2.jpg">
;The size of two images is equal.
<PARAM NAME="maskimage" VALUE="bkkmsk.gif">
</APPLET>

Black.....carved. White.....not carved. Grayscale..shadow