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

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