var req, div;
div = "carregarcena";
//////////////////////////////////////////////////////////////////
function loadXMLDoc(url){
 	req = null;
 	//mostrar_mensagem();
	if (window.XMLHttpRequest) {
		req = new XMLHttpRequest();
		req.onreadystatechange = processReqChange;
		req.open("GET", url, true); 
		req.send(null);
	} else if (window.ActiveXObject) {
	try {
		req = new ActiveXObject("Msxml2.XMLHTTP.4.0");
	} catch(e) {
	try {
		req = new ActiveXObject("Msxml2.XMLHTTP.3.0");
	} catch(e) {
	try {
		req = new ActiveXObject("Msxml2.XMLHTTP");
	} catch(e) {
	try {
		req = new ActiveXObject("Microsoft.XMLHTTP");
	} catch(e) {
	req = false;
	}
	}
	}
}
//////////////////////////////////////////////////////////////////
if (req) {
 	req.onreadystatechange = processReqChange;
	req.open("GET", url, true);
	req.send();
}
}
}
//////////////////////////////////////////////////////////////////
function mostrar_mensagem()
{
	var foto;
	foto = '<img src="images1/tiny_red.gif" align="absmiddle"  border="0"/>';	
	document.getElementById("carregarcena").innerHTML = foto + '&nbsp;&nbsp;Carregando...';		
}
function processReqChange(){
if (req.readyState == 4) {
	if (req.status == 200) {
		document.getElementById("carregarcena").innerHTML = '';	
		document.getElementById("carregarcena").innerHTML = req.responseText;
	} else {
		document.getElementById("carregarcena").innerHTML = 'Houve um problema ao obter os dados';
		//alert("Houve um problema ao obter os dados:\n" + req.statusText);
	}
 }
}



// JavaScript Document
var cta   = -1;
var itens = 4;
//Variavel das Cenas existentes
var cena  = new Array(itens); 
cena[0]   = "vitrini/3a.swf"; 
cena[1]   = "vitrini/2a.swf"; 
cena[2]   = "vitrini/4a.swf"; 
cena[3]   = "vitrini/3a.swf"; 
cena[4]   = "vitrini/4a.swf"; 
cena[5]   = "vitrini/5.jpg"; 
//Variavel Temporizadora
var tempo = new Array(itens);
tempo[0]  = 15000; 
tempo[1]  = 15000; 
tempo[2]  = 15000; 
tempo[3]  = 15000; 
tempo[4]  = 15000; 
tempo[5]  = 15000; 
////////////////////////
//var intervalo = window.setInterval(lerolero(), 1000);
var intervalo
////////////////////////
function Start()
{
	if (cta!=-1){
		window.clearInterval(intervalo);
	}
	cta   = cta + 1;
	if (cta>(itens-1)){ cta = 0; }	
	MostrarCena(cena[cta],tempo[cta],cta);	
}
function MostrarCena(cena,tempo,idatual)
{
	var ts = Math.ceil ( Math.random() * 10000);
	loadXMLDoc("vitrini/vitrine.asp?cena="+cena+"&ts="+ts+"&qtbotao="+itens+"&idatual="+idatual);	
	intervalo = window.setInterval("Start()",tempo);	
}
function Ir(id)
{
	cta = id;
	window.clearInterval(intervalo);
	MostrarCena(cena[cta],tempo[cta],cta);
}
Start(); // inicia a operacao