function hide(x) {
	if (document.layers) {
		document.layers[x].display = 'none';
	} else if (document.all) {
		document.all[x].style.display = 'none';
	} else if (document.getElementById) {
		document.getElementById(x).style.display = 'none';
	}
}

function show(x) {
	if (document.layers) {
		document.layers[x].display = 'block';
	} else if (document.all) {
		document.all[x].style.display = 'block';
	} else if (document.getElementById) {
		document.getElementById(x).style.display = 'block';
	}
}