function openSubMenu(f_strId) {
    var f_tmp = document.getElementById('menu').getElementsByTagName('dd')

    for (var i = 0;i < f_tmp.length;i++)
        if (f_tmp[i].id != f_strId) {
            f_tmp[i].style.display = 'none'

            var f_tmp2 = f_tmp[i].getElementsByTagName('ul')

            for (var j = 0;j < f_tmp2.length;j++)
                f_tmp2[j].style.display = 'none'
        } else
            if (f_tmp[i].style.display == 'none' || f_tmp[i].style.display == '')
                f_tmp[i].style.display = 'block'
            else
                f_tmp[i].style.display = 'none'
}

function openSubSubMenu(f_strId) {
    if (document.getElementById(f_strId).style.display == 'none' || document.getElementById(f_strId).style.display == '')
        document.getElementById(f_strId).style.display = 'block'
    else
        document.getElementById(f_strId).style.display = 'none'
}