function menu(objID) {
    var obj = document.getElementById(objID);

    if (obj.className == "closed")
        obj.className = "opened";

    else
        obj.className = "closed";
}

function ActiveTab() {
    var query = window.location.search;
    query = query.substring((query.indexOf('=')) + 1);
    if (query != "") {
        document.getElementById('tab' + query).className = "item active";
    }
}