var list = null;
var text = null;

function getObject(id) {
	return document.getElementById(id);
}

function sellist(id) {
	if (list != null) {
		list.style.visibility = 'hidden';
	}
	list = getObject(id);
	list.style.visibility = 'visible';
	return false;
}

function seltext(id) {
	if (text != null) {
		text.style.visibility = 'hidden';
	}
	text = getObject(id);
	text.style.visibility = 'visible';
	return false;
}