function constructMenu(element)
{
	if(!isConstructMenu) {
		$$("li.parent.level1").each(function (e) {
			e.observe("click", hideShowSubMenu.bindAsEventListener(this,e));
			console.debug("OK");
		});
		isConstructMenu = true;
		hideShowSubMenu(null, element);
	}
	
}

function hideShowSubMenu(event, element) {
	childs = Element.childElements(element);
	if(childs.length > 1) {
		child = childs[1];
		if(child.hasClassName("invisible")) {
			Element.removeClassName(child, "invisible");
		} else {
			Element.addClassName(child, "invisible");
		}
		/*if(Element.visible(child)) {
			child.hide();
		} else {
			child.show();
		}*/
	}
}

var isConstructMenu = false;