function toggleBag() {
    var isToggled = (bag.style.visibility == "visible");

    bag.style.visibility = (isToggled) ? "hidden" : "visible"
    
}

var handler;
var toggle;
var close;
var bag;

//handler = window.onload;

//window.onload = function () {
    bag = document.getElementById("bag");
    toggle = document.getElementById("bagToggle");
    close = document.getElementById("bagClose");

    toggle.onclick = toggleBag;
    close.onclick = toggleBag;

    //handler();

//}