Applet paramenter help

hello there,

i have this applet code from sun java demo folder and want to know what does the code do.can anybody explain.

<applet code=ImageMap.class width=684 height=71>
      <param name=img value="images/7224.jpg">
      <param name=highlight value="brighter30">
      <param name=area1 value="SoundArea,260,180,120,60,audio/hi.au">
      <param name=area2 value="NameArea,260,180,120,60,Hi!">
      <param name=area3 value="HighlightArea,260,180,120,60">
      <param name=area4 value="NameArea,265,125,45,20,That is my right eye">
      <param name=area5 value="HighlightArea,265,125,45,20">
      <param name=area6 value="NameArea,335,130,45,20,That is my left eye">
      <param name=area7 value="HighlightArea,335,130,45,20">
      <param name=area8 value="HrefButtonArea,200,7,210,300,http://java.sun.com">
      <param name=area9 value="RoundHrefButtonArea,60,0,100,120,example2.html">
      <param name=area10 value="SoundArea,425,98,27,27,audio/chirp1.au">
      <param name=area11 value="NameArea,425,98,27,27,Chirp!">
      <param name=area12 value="HighlightArea,425,98,27,27">
      <param name=area13 value="ClickArea,0,0,522,486">