ns4 = (document.layers)? true:false
	ie4 = (document.all)? true:false
	ns6 = (document.getElementById)? true:false
	
function mostra(nome){
		if (ie4){
			document.all[nome].style.visibility = "visible";
			}
		else if (ns4){
			document.layers[nome].visibility = "visible";
			}
		else if (ns6){
			document.getElementById(nome).style.visibility = "visible";
			}
		}
	function nascondi(nome){
		if (ie4){
			document.all[nome].style.visibility = "hidden";
			}
		else if (ns4){
			document.layers[nome].visibility = "hidden";
			}
		else if (ns6){
			document.getElementById(nome).style.visibility = "hidden";
			}
		}
function nuovafinestra(str,name) {
	searchWin = window.open(str,name,'scrollbars=no,resizable=no,width=530,height=500,status=no,location=no,toolbar=no');
		}
function nuovafinestranew(str,name) {
	searchWin = window.open(str,name,'scrollbars=no,resizable=no,width=500,height=370,status=no,location=no,toolbar=no');
		}
function nuovafinestra1(str,name) {
	searchWin = window.open(str,name,'scrollbars=yes,resizable=no,width=500,height=370,status=no,location=no,toolbar=no');
		}
function nuovafinestrax(str,name) {
	searchWin = window.open(str,name,'scrollbars=no,resizable=no,width=480,height=300,status=no,location=no,toolbar=no');
		}
		
var Step = 2;

var Tempo = 150;

var nn = document.layers?true:false;
var N6 = navigator.userAgent.toLowerCase().indexOf("gecko")!=-1?true:false;
var LayText=null;
var AltezzaLivello=0;
var LarghezzaLivello=0;
var Limite =0;
var texTop=0;
var DeltaTop = 0;
var timsc=null;

function Start()
	{
	LayText=nn?document.layers.textLayer:N6?document.getElementById("textLayer").style:document.all.textLayer.style;
	DeltaTop=nn?LayText.top:N6?document.getElementById("textLayer").offsetTop:document.all.textLayer.offsetTop;
	AltezzaLivello=parseInt(nn?LayText.clip.height:N6?LayText.height:LayText.height);
	LarghezzaLivello=parseInt(nn?LayText.clip.width:N6?LayText.width:LayText.width);
	Limite=-AltezzaLivello+(nn?LayText.document.height:N6?document.getElementById("divN6").offsetHeight:document.all.textLayer.clientHeight);
	}

function Move(where)
	{
	where?texTop>=Limite?null:texTop+=Step:texTop==0?null:texTop-=Step;
	LayText.top=-texTop+DeltaTop;
	if (nn)
		{
		LayText.clip.top=texTop;
		LayText.clip.bottom=eval(texTop+AltezzaLivello);
		}
		else
		LayText.clip = "rect(" + texTop + ", " + LarghezzaLivello + ", " +eval(texTop+AltezzaLivello) + ", 0)";
	}

function StartScroll(updown){timsc=setInterval(updown?"Move(true)":"Move(false)",Tempo);}
	
function StopScroll(){clearInterval(timsc);}