function shownew(id, n,trg,trg1) {
    for (var i = 1; i <= n; i++) {
        document.getElementById(trg + i).style.display = "none";
        if (i == id) {
            document.getElementById(trg + i).style.display = "block";
        }
    }
    if (id == 1) {
        document.getElementById(trg1 + "1").className = "li1";
        document.getElementById(trg1 + "2").className = "li2";
    }
    else {
        document.getElementById(trg1 + "1").className = "li1not";
        document.getElementById(trg1 + "2").className = "li2not";
    }
}