bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
    if ((bName == "Netscape" && bVer >= 3) || 
        (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3"; 
    else br = "n2";

    if (br== "n3") { 
   
    img0on = new Image();                    
    img0on.src = "images/0000on.gif";      
    img0off = new Image();              
    img0off.src = "images/0000.gif";
        
    img1on = new Image();                    
    img1on.src = "images/0100on.gif";      
    img1off = new Image();              
    img1off.src = "images/0100.gif";
    
    img2on = new Image();                    
    img2on.src = "images/0200on.gif";      
    img2off = new Image();              
    img2off.src = "images/0200.gif";
    
    img3on = new Image();                    
    img3on.src = "images/0300on.gif";      
    img3off = new Image();              
    img3off.src = "images/0300.gif";
    
    img4on = new Image();                    
    img4on.src = "images/0400on.gif";      
    img4off = new Image();              
    img4off.src = "images/0400.gif";

    img5on = new Image();                    
    img5on.src = "images/0500on.gif";      
    img5off = new Image();              
    img5off.src = "images/0500.gif";
    
    img6on = new Image();                    
    img6on.src = "images/0600on.gif";      
    img6off = new Image();              
    img6off.src = "images/0600.gif";
    
    img7on = new Image();                    
    img7on.src = "images/0700on.gif";      
    img7off = new Image();              
    img7off.src = "images/0700.gif";
    
    img8on = new Image();                    
    img8on.src = "images/0800on.gif";      
    img8off = new Image();              
    img8off.src = "images/0800.gif";
    
    img9on = new Image();                    
    img9on.src = "images/0900on.gif";      
    img9off = new Image();              
    img9off.src = "images/0900.gif";
    
    img10on = new Image();                    
    img10on.src = "images/1000on.gif";      
    img10off = new Image();              
    img10off.src = "images/1000.gif";
    
    img11on = new Image();                    
    img11on.src = "images/1100on.gif";      
    img11off = new Image();              
    img11off.src = "images/1100.gif";
    
    }
// Function to "activate" images.
function imgAct(imgName) {
    if (br == "n3") {
    document[imgName].src = eval(imgName + "on.src");
    }
}
// Function to "deactivate" images.
function imgInact(imgName) {
    if (br == "n3") {
    document[imgName].src = eval(imgName + "off.src");
    }
}