// What type of browser is this Netscape 3 + or IE 4 +.

bName = navigator.appName;

bVer = parseInt(navigator.appVersion);

    if ((bName == "Netscape" && bVer >= 3) || 

        (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3"; 

    else br = "n2";

// Create image objects, preload all active and inactive images.

    if (br== "n3") { 

    img1on = new Image();                   

    img1on.src = "../images/MButtonsHi_02.gif";

    

    img2on = new Image();                   

    img2on.src = "../images/MButtonsHi_03.gif";

    

    img3on = new Image();                   

    img3on.src = "../images/MButtonsHi_04.gif";

    

    img4on = new Image();                   

    img4on.src = "../images/MButtonsHi_05.gif";

    

    img5on = new Image();                   
    img5on.src = "../images/MButtonsHi_06.gif";

    

    img6on = new Image();                   

    img6on.src = "../images/MButtonsHi_07.gif";  

   

    img1off = new Image();          

    img1off.src = "../images/MButtons_02.gif";

    

    img2off = new Image();          

    img2off.src = "../images/MButtons_03.gif";

    

    img3off = new Image();          

    img3off.src = "../images/MButtons_04.gif";

    

    img4off = new Image();          

    img4off.src = "../images/MButtons_05.gif";

    

    img5off = new Image();          

    img5off.src = "../images/MButtons_06.gif";

    

    img6off = new Image();          

    img6off.src = "../images/MButtons_07.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");

    }

}