var navWatch;
var boolNavOn = false;

function subNavShow(menu) {
    subNavHide();
    var nav = document.getElementById('subnav' + menu);
    nav.style.display = "block";
    boolNavOn = true;
    navWatch = setInterval(function() {
        if (boolNavOn == false) {
            subNavHide();
        }
    }, 300);
}

function subNavHide() {
    var learnnav = document.getElementById('subnavlearn');
    var commnav = document.getElementById('subnavcommunity');
    learnnav.style.display = commnav.style.display = "none";
    clearInterval(navWatch);
    boolNavOn = false;
}

function subNavOut() {
    boolNavOn = false;
}

function subNavOn() {
    boolNavOn = true;
}