sichtbar = window.setTimeout("hideAfterDelay()", 5000);

function showSubNavTracker(id) {
    window.clearTimeout();
    $(".subTopNavItem" + id).css("display", "inline");
}

function hideAfterDelay(id) {
    setTimeout("hideSubNav(" + id + ")", 5000)
}

function hideSubNav(id) {
    $(".subTopNavItem" + id).css("display", "none");
}