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") {
img1on = new Image( );
img1on.src  = "images/nav1_on_purple.jpg";
img2on = new Image( );
img2on.src  = "images/nav2_on_purple.jpg";	
img3on = new Image( );
img3on.src  = "images/nav3_on_purple.jpg";	
img4on = new Image( );
img4on.src  = "images/nav4_on_purple.jpg";	
img5on = new Image( );
img5on.src  = "images/nav5_on_purple.jpg";	
img6on = new Image( );
img6on.src  = "images/nav6_on_purple.jpg";	
img7on = new Image( );
img7on.src  = "images/nav7_on_purple.jpg";	
img8on = new Image( );
img8on.src  = "images/nav8_on_purple.jpg";	
img9on = new Image( );
img9on.src  = "images/nav9_on_purple.jpg";	


img1off = new Image( );
img1off.src  = "images/nav1_off_purple.jpg";
img2off = new Image( );
img2off.src  = "images/nav2_off_purple.jpg";	
img3off = new Image( );
img3off.src  = "images/nav3_off_purplek.jpg";	
img4off = new Image( );
img4off.src  = "images/nav4_off_purple.jpg";	
img5off = new Image( );
img5off.src  = "images/nav5_off_purple.jpg";	
img6off = new Image( );
img6off.src  = "images/nav6_off_purple.jpg";
img7off = new Image( );
img7off.src  = "images/nav7_off_purple.jpg";
img8off = new Image( );
img8off.src  = "images/nav8_off_purple.jpg";
img9off = new Image( );
img9off.src  = "images/nav9_off_purple.jpg";


}

function imgAct(imgName) {
if (br == "n3") {
document[imgName].src = eval(imgName + "on.src");
}
}

function imgInact(imgName) {
if (br == "n3") {
document[imgName].src = eval(imgName + "off.src");
}
}