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") {

    home_on = new Image(78,36);
    home_on.src = "images/l_home.gif";
    classes_on = new Image(58,36);
    classes_on.src = "images/l_classes.gif";
    trips_on = new Image(70,36);
    trips_on.src = "images/l_trips.gif";
    tuition_on = new Image(56,36);
    tuition_on.src = "images/l_tuition.gif";
    general_on = new Image(78,36);
    general_on.src = "images/l_general.gif";
    coop_on = new Image(78,36);
    coop_on.src = "images/l_coop.gif";
    map_on = new Image(78,36);
    map_on.src = "images/l_map.gif";
    fundraising_on = new Image(78,36);
    fundraising_on.src = "images/l_fundraising.gif";
    register_on = new Image(78,36);
    register_on.src = "images/l_register.gif";
    members_on = new Image(78,36);
    members_on.src = "images/l_members.gif";

    home_off = new Image(78,36);
    home_off.src = "images/d_home.gif";
    classes_off = new Image(58,36);
    classes_off.src = "images/d_classes.gif";
    trips_off = new Image(70,36);
    trips_off.src = "images/d_trips.gif";
    tuition_off = new Image(56,36);
    tuition_off.src = "images/d_tuition.gif";
    general_off = new Image(78,36);
    general_off.src = "images/d_general.gif";
    coop_off = new Image(78,36);
    coop_off.src = "images/d_coop.gif";
    map_off = new Image(78,36);
    map_off.src = "images/d_map.gif";
    fundraising_off = new Image(78,36);
    fundraising_off.src = "images/d_fundraising.gif";
    register_off = new Image(78,36);
    register_off.src = "images/d_register.gif";
    members_off = new Image(78,36);
    members_off.src = "images/d_members.gif";
    }

var isMenuAct=false;
var cur_page = "";

function imgAct(imgName) {
    if (br == "n3") {
    isMenuAct = true
    document[imgName].src = eval(imgName + "_on.src");
    if (cur_page != "" && cur_page != imgName){
      document[cur_page].src = eval(cur_page + "_off.src");}
    }
}

function imgInact(imgName) {
    if (br == "n3") {
    isMenuAct = false
    document[imgName].src = eval(imgName + "_off.src");
    timerID = setTimeout('if (!isMenuAct && cur_page!="") document[cur_page].src = eval(cur_page + "_on.src");', 70);
    }
}