<!--
  browsok = (((navigator.appName == "Netscape")
  && (parseInt(navigator.appVersion) >= 3))
  || ((navigator.appName == "Microsoft Internet Explorer")
  && (parseInt(navigator.appVersion)>=3)));
  if(browsok){
    // MouseOn   
    // Note: the WWW is for the WIDTH, HHH is for the HEIGHT
 
       chapter071 = new Image(100, 86);
       chapter071.src = "images/chapter_07_on.jpg";
       chapter081 = new Image(100, 86);
       chapter081.src = "images/chapter_08_on.jpg";
       chapter091 = new Image(100, 86);
       chapter091.src = "images/chapter_09_on.jpg";
       chapter101 = new Image(100, 86);
       chapter101.src = "images/chapter_10_on.jpg";
       chapter111 = new Image(100, 86);
       chapter111.src = "images/chapter_11_on.jpg";
       chapter121 = new Image(100, 86);
       chapter121.src = "images/chapter_12_on.jpg";



    // MouseOff

       chapter070 = new Image(100, 86);
       chapter070.src = "images/chapter_07_off.jpg";
       chapter080 = new Image(100, 86);
       chapter080.src = "images/chapter_08_off.jpg";
       chapter090 = new Image(100, 86);
       chapter090.src = "images/chapter_09_off.jpg";
       chapter100 = new Image(100, 86);
       chapter100.src = "images/chapter_10_off.jpg";
       chapter110 = new Image(100, 86);
       chapter110.src = "images/chapter_11_off.jpg";
       chapter120 = new Image(100, 86);
       chapter120.src = "images/chapter_12_off.jpg";


      
  }
  function BNB_mouseon(n){
       if(browsok){
            imageON = eval(n + "1.src");
            document [n].src = imageON;
            }
  }
  function BNB_mouseoff(n){
       if(browsok){
  imageOFF = eval(n + "0.src");
       document [n].src = imageOFF;
            }
  }
  // -->