// Detect if browser is Netscape 4 + or IE 3 +.
bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
    if ((bName == "Netscape" && bVer >= 4) || 
        (bName == "Microsoft Internet Explorer" && bVer >= 3)) br = "n3"; 
    else br = "n2";

// Create image objects, preload all active and inactive images.
    if (br== "n3") { 
    img1on = new Image();          // Create nine image objects for the 
    img1on.src = "images/artists_07b.gif";  // active images; the images displayed
    img2on = new Image();          // when the mouse moves over the 
    img2on.src = "images/artists_09b.gif";  // rollovers.
    img3on = new Image();
    img3on.src = "images/artists_14b.gif";
    img4on = new Image();
    img4on.src = "images/artists_16b.gif";
    img5on = new Image();
    img5on.src = "images/artists_18b.gif";
    img6on = new Image();
    img6on.src = "images/artists_20b.gif";
    img7on = new Image();
    img7on.src = "images/artists_22b.gif";
    img8on = new Image();
    img8on.src = "images/artists_24b.gif";
    img9on = new Image();
    img9on.src = "images/artists_26b.gif";


    img1off = new Image();          // Create nine image objects for the 
    img1off.src = "images/artists_07.gif"; // inactive images; the images 
    img2off = new Image();          // displayed when the mouse moves off
    img2off.src = "images/artists_09.gif"; // the rollovers.
    img3off = new Image();
    img3off.src = "images/artists_14.gif";
    img4off = new Image();
    img4off.src = "images/artists_16.gif";
    img5off = new Image();
    img5off.src = "images/artists_18.gif";
    img6off = new Image();
    img6off.src = "images/artists_20.gif";
    img7off = new Image();
    img7off.src = "images/artists_22.gif";
    img8off = new Image();
    img8off.src = "images/artists_24.gif";
    img9off = new Image();
    img9off.src = "images/artists_26.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");
    }
}