function getSection()
{
    if (location.href.toLowerCase().indexOf("/html/afg/") > -1)
        return "0c";
    else if (location.href.toLowerCase().indexOf("/html/safer/") > -1)
        return "1c";
    else if (location.href.toLowerCase().indexOf("/html/fps/") > -1)
        return "2c";
    else if (location.href.toLowerCase().indexOf("/html/scg/") > -1)
        return "3c";
    else
        return "-1c";
}

function setBackground(index, state)
{
    var e = document.getElementById("Nav" + index);
    if (state == "none")
    {
        if (index == 3)
            e.style.backgroundColor = "Transparent";
        else
            e.style.backgroundColor = "#FFFFFF";
    }
    else
    {
        e.style.backgroundColor = "#969696";
    }
}