var selected = false;
var selectedImg = false;

// Menu ----->

function selectMenu(id) {
	if (selected != id) {
		if (selected) {
			unselectMenu(selected);
		}
		$(id).className = "selected";
		Element.show(id+'-sub');
		selected = id;
	}
	else {
		unselectMenu(id);
	}
}

function unselectMenu(id) {
	$(id).className = "";
	Element.hide(id+'-sub');
	selected = false;
}

// Enlarge images ----->

function selectImg(id) {
	if (selectedImg != id) {
		if (selectedImg) {
			unselectImg(selectedImg);
		}
		Element.hide(id);
		Element.show(id+'-hi');
		selectedImg = id;
	}
	else {
		unselectImg(id);
	}
}
		
function unselectImg(id) {
	Element.hide(id+'-hi');
	Element.show(id);
	selectedImg = false;
}