browserName = navigator.appName;

browserVer = parseInt(navigator.appVersion);

if (browserName == "Netscape" && browserVer >= 3)
version = "n3";

else 
version = "n2";

if (browserName == "Microsoft Internet Explorer" && browserVer >= 4)
version = "n3"; 

if (version == "n3") {
imageNewson = new Image(0, 0);
imageNewson.src = "../images/nav/nav_news_on.gif";
imageMeeton = new Image(0, 0);
imageMeeton.src = "../images/nav/nav_meet_on.gif";
imageHoroon = new Image(0, 0);
imageHoroon.src = "../images/nav/nav_horo_on_sep.gif";
imageCompon = new Image(0, 0);
imageCompon.src = "../images/nav/nav_comp_on.gif";
imageSignon = new Image(0, 0);
imageSignon.src = "../images/nav/nav_sign_on.gif";
imageFunon = new Image(0, 0);
imageFunon.src = "../images/nav/nav_fun_on.gif";
imageLetterson = new Image(0, 0);
imageLetterson.src = "../images/nav/nav_letters_on.gif";
imageShopon = new Image(0, 0);
imageShopon.src = "../images/nav/nav_shop_on.gif";
imageEcardon = new Image(0, 0);
imageEcardon.src = "../images/nav/nav_ecard_on.gif";

imageNewsoff = new Image(0, 0);
imageNewsoff.src = "../images/nav/nav_news_off.gif";
imageMeetoff = new Image(0, 0);
imageMeetoff.src = "../images/nav/nav_meet_off.gif";
imageHorooff = new Image(0, 0);
imageHorooff.src = "../images/nav/nav_horo_off.gif";
imageCompoff = new Image(0, 0);
imageCompoff.src = "../images/nav/nav_comp_off.gif";
imageSignoff = new Image(0, 0);
imageSignoff.src = "../images/nav/nav_sign_off.gif";
imageFunoff = new Image(0, 0);
imageFunoff.src = "../images/nav/nav_fun_off.gif";
imageLettersoff = new Image(0, 0);
imageLettersoff.src = "../images/nav/nav_letters_off.gif";
imageShopoff = new Image(0, 0);
imageShopoff.src = "../images/nav/nav_shop_off.gif";
imageEcardoff = new Image(0, 0);
imageEcardoff.src = "../images/nav/nav_ecard_off.gif";
}

function img_act(imgName) {
if (version == "n3") {
imgOn = eval(imgName + "on.src");
document [imgName].src = imgOn;
}
}

function img_inact(imgName) {
if (version == "n3") {
imgOff = eval(imgName + "off.src");
document [imgName].src = imgOff;
}
}