function hide(id,nest){	if(document.layers){if(nest)
document.layers[nest].document.layers[id].visibility="hidden"
else document.layers[id].visibility="hidden"}else if(document.all) document.all[id].style.visibility="hidden"}
function show(id,nest){if(document.layers){if(nest) document.layers[nest].document.layers[id].visibility="visible"
else document.layers[id].visibility="visible"}else if(document.all) document.all[id].style.visibility="visible"}

function preload() {if (!document.images) return;
var wl = new Array(); var arguments = preload.arguments;
for (var i = 0; i < arguments.length; i++) {wl[i] = new Image();wl[i].src = arguments[i];}}
function right(e) {
if (navigator.appName == 'Netscape' && 
(e.which == 3 || e.which == 2))
return false;
else if (navigator.appName == 'Microsoft Internet Explorer' && 
(event.button == 2 || event.button == 3)) {
alert("Alternative features not available.\nFunzioni alternative non disponibili")
return false}
return true}
document.onmousedown=right;
if (document.layers) window.captureEvents(Event.MOUSEDOWN);
window.onmousedown=right;