function $(obj) {
	if (typeof(obj) == 'string') obj = document.getElementById(obj);
	return obj;
}
function show(obj) {
	var elem = $(obj);
	elem.style.display = 'block';
}
function hide(obj) {
	var elem = $(obj);
	elem.style.display = 'none';
}
function toggle(obj) {
	var elem = $(obj);
	if (elem.style.display == 'block') hide(elem);
	else show(elem);
}

// menu
var items = document.getElementById('top-menu').getElementsByTagName('li');
for (var i = 0, l = items.length; i < l; i++) {
	if (items[i].getElementsByTagName('ul').length) {
		var dropdown = items[i].getElementsByTagName('ul')[0];
		items[i].onmouseover = function() {
			show(dropdown);
		};
		items[i].onmouseout = function() {
			hide(dropdown);
		};
	}
}

// hide stores
document.write('<style type="text/css">UL.stores {display: none}</style>');