function show() {
	for (i = 0; i < show.arguments.length; i++)
		if (document.all)
			document.all[show.arguments[i]].style.display = '';
		else
			document.getElementById(show.arguments[i]).style.display = '';
}

function hide() {
	for (i = 0; i < hide.arguments.length; i++)
		if (document.all)
			document.all[hide.arguments[i]].style.display = 'none';
		else
			document.getElementById(hide.arguments[i]).style.display = 'none';
}