Lunar Phases Applet
  Download curmoon.class, curmoon_moon_canvas.class,
  curmoon_text_canvas.class, and fullmoon.gif.
  (If using Netscape, right-click on link and "save as."
  
  HTML code:
  <applet code="curmoon.class" width="440" height="230"
  align="absmiddle">
  <param name=Image value="fullmoon.gif">
  <param name=Column1 value="moon">
  <param name=Column2 value="phase;lunation;visible;age;lastnewmoon;firstquarter;fullmoon;lastquarter;nextnewmoon;localtime;utctime;easter;hebrew;islamic">
  </applet>
From Chris
 Cobb's Obligatory Java
 visit site for variations