rys1on = new Image();
        rys1on.src = "com/n1on.gif";
        rys1off = new Image();
        rys1off.src = "com/n1off.gif";;
        
        rys2on = new Image();
        rys2on.src = "com/n2on.gif";
        rys2off = new Image();
        rys2off.src = "com/n2off.gif";

        rys3on = new Image();
        rys3on.src = "com/n3on.gif";
        rys3off = new Image();
        rys3off.src = "com/n3off.gif";
  
        rys4on = new Image();
        rys4on.src = "com/n4on.gif";
        rys4off = new Image();
        rys4off.src = "com/n4off.gif";
         
         rys5on = new Image();
        rys5on.src = "com/n5on.gif";
        rys5off = new Image();
        rys5off.src = "com/n5off.gif";
        
         rys6on = new Image();
        rys6on.src = "com/n6on.gif";
        rys6off = new Image();
        rys6off.src = "com/n6off.gif";     
          
       rys7on = new Image();
        rys7on.src = "com/n7on.gif";
        rys7off = new Image();
        rys7off.src = "com/n7off.gif";     
                
        function zmiana1(imgName)
        {
        imgOn = eval(imgName + "on.src");
      document [imgName].src = imgOn;
        }
       function zmiana2(imgName)
        {
       imgOff = eval(imgName + "off.src")
        document [imgName].src = imgOff;
        }