function $() {
	var elements = new Array();
	for (var i = 0; i < arguments.length; i++) {
		var element = arguments[i];
		if (typeof element == 'string')
			element = document.getElementById(element);
		if (arguments.length == 1)
			return element;
		elements.push(element);
	}
	return elements;
}

function show(o) {
	$(o).style.display = 'inherit';
}
function hide(o) {
	$(o).style.display = 'none';
}

function english() {
	show('english');
	hide('spanish');
	hide('french');
	hide('german');
}
function french() {
	show('french');
	hide('spanish');
	hide('english');
	hide('german');
}
function german() {
	show('german');
	hide('spanish');
	hide('english');
	hide('french');
}
function spanish() {
	show('spanish');
	hide('german');
	hide('english');
	hide('french');
}
function official() {
	show('official');
	hide('advance');
	hide('nyff');
}
function advance() {
	show('advance');
	hide('official');
	hide('nyff');
}
function nyff() {
	show('nyff');
	hide('official');
	hide('advance');
}