var ie4 = false; if(document.all) { ie4 = true; }
function getObject(id) {
    if (ie4) {
        return document.all[id];
    } else {
        return document.getElementById(id);
    }
}

function toggle_menu(link, divId) {
    var lText = link.innerHTML; var dt = getObject(divId);
    if (lText == '-') {
        link.innerHTML = '+'; dt.style.display = 'none';
    } else { link.innerHTML = '-'; dt.style.display = 'block';
    }
}

function toggle_menu2(link, divId) {
    var lText = link.innerHTML; var dt = getObject(divId);
    if (lText == '-') {
        link.innerHTML = '+'; dt.style.display = 'none';
    } else { link.innerHTML = '-'; dt.style.display = 'block';
    }
}