var classifie_number = 3;

function AllHide() {
    var tbg;
    var ttb;
    for (i = 1; i <= classifie_number; i++) {
        tbg = document.getElementById('Set' + i);
        ttb = 'ShowSet' + i;
        tbg.className = '';
        document.getElementById(ttb).style.display = 'none';
    }
}

function Show(i) {
    tbg = document.getElementById("Set" + i);
    ttb = 'ShowSet' + i;

    if (tbg.className == '') {
        AllHide();
        tbg.className = 'moren';
        document.getElementById(ttb).style.display = 'block';
    }
    else {
        tbg.className = 'moren';
        document.getElementById(ttb).style.display = 'block';
    }
}