// Extended Tooltip Javascript
// copyright 9th August 2002, by Stephen Chapman, Felgall Pty Ltd

// permission is granted to use this javascript provided that the below code is not altered
var DH = 0;var an = 0;var al = 0;var ai = 0;

if (document.getElementById) {ai = 1; DH = 1;}
else {if (document.all) {al = 1; DH = 1;} 
else { browserVersion = parseInt(navigator.appVersion); 

if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) {an = 1; DH = 1;}}} 

function fd(oi,ws) {if (ws == 1) {
	if (ai) {return (document.getElementById(oi).style);}
	else {
	if (al) {
		return (document.all[oi].style);} 
	else {
		if (an) {
			return (document.layers[oi]);}};}} 
			else {
				if (ai) {return (document.getElementById(oi));} 
				else {
					if (al) {return (document.all[oi]);} 
					else {
						if (an) {return (document.layers[oi]);
						}
					};}}} 
							
							
function pw() {
	if (window.innerWidth != null) 
	return window.innerWidth; 
	if (document.body.clientWidth != null)
	return document.body.clientWidth; 
	return (null);} 
	
	
function popUp(evt,oi,msg) {
	if (DH) {
		var wp = pw(); ds = fd(oi,1); dm = fd(oi,0); 
		st = ds.visibility; 

	if (dm.offsetWidth) ew = dm.offsetWidth; 
	else if (dm.clip.width) ew = dm.clip.width; 
	if (st == "visible" || st == "show") { ds.visibility = "hidden"; } 
	else  { 
	if (evt.y || evt.pageY) {if (evt.pageY) {tv = evt.pageY + 20;
		lv = evt.pageX - (ew/4);} 
	else {tv = evt.y + 20 + document.body.scrollTop; lv = evt.x  - (ew/4) + document.body.scrollLeft;} 
	if (lv < 2) lv = 2; 
	else if (lv + ew > wp) lv -= ew/2;
	if (!an) {lv += 'px';tv += 'px'};ds.left = lv; ds.top = tv;} ds.visibility = "visible";}}
	
	document.getElementById("t1").innerHTML = "Scritto da:<br>" + msg;
	document.getElementById("t2").innerHTML = "Scritto da:<br>" + msg;
}