function preload() {
	this.length=preload.arguments.length;
	for (var i = 0; i < this.length; i++) {
		this[i+1] = new Image();
		this[i+1].src = preload.arguments[i];
	}
}

if (document.images) {
	var stuff = new preload(
	"../images/experimentos.gif",	
	"../images/padres.gif",							
	"../images/recomienda.gif"
	)
}

browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 4 || browserName =="Microsoft Internet Explorer" && browserVer >= 4) {
	screenHeight = screen.height;
	screenWidth = screen.width;
}
else if (browserName == "Netscape" && browserVer >= 3) {
	var screen_size = toolkit.getScreenSize();
	screenHeight = screen_size.height;
	screenWidth = screen_size.width;
}
else {
	screenHeight = 800;
	screenWidth = 600;
}
var sNav;
if (browserName == "Netscape")
	sNav = document;
else
	sNav = document.all;

var Banner = 0;
var Sponsor = 0;
var MaxBanners = 3;
var MaxSponsors = 2;
var timerID = null;
var timeInterval = 8000; 	// miliseconds
var timerRunning = false;

HRefArray = new Array;
IMGArray = new Array;
DESArray = new Array;
SIZArray = new Array;

S_HRefArray = new Array;	// sponsors
S_IMGArray = new Array;
S_DESArray = new Array;
S_SIZArray = new Array;

HRefArray[1] = "../ajugar/experimentos/experimentos.asp";
IMGArray[1]  = "../images/experimentos.gif";
DESArray[1]  = "Experimentos";
SIZArray[1]  = "fullscreen";
HRefArray[2] = "../padres/index.asp";
IMGArray[2]  = "../images/padres.gif";
DESArray[2]  = "Nuevo Sector Padres";
SIZArray[2]  = "fullscreen";
HRefArray[3] = "../amigo/socamigo.asp?ftime=true&lastnom=";
IMGArray[3]  = "../images/recomienda.gif";
DESArray[3]  = "Recomienda Chicomania a un amiguito";
SIZArray[3]  = "fullscreen";


// SPONSORS
S_HRefArray[1] = "http://www.musimundo.com.ar";
S_IMGArray[1]  = "../images/musi.gif";
S_DESArray[1]  = "www.musimundo.com.ar";
S_SIZArray[1]  = "fullscreen"
S_HRefArray[2] = "";
S_IMGArray[2]  = "../images/po.gif";
S_DESArray[2]  = "";
S_SIZArray[2]  = "";

function showtime() 
{
	Banner = Banner + 1;
	if(Banner == MaxBanners+1) Banner = 1;
	sNav.Banners.src = IMGArray[Banner];
	sNav.Banners.alt = DESArray[Banner];

	//showSponsors();
	timerID = setTimeout("showtime()",timeInterval);
	timerRunning = true;
}
function showSponsors() 
{
	Sponsor = Sponsor + 1;
	if(Sponsor == MaxSponsors+1) Sponsor = 1;
	sNav.Sponsors.src = S_IMGArray[Sponsor];
	sNav.Sponsors.alt = S_DESArray[Sponsor];
}
var timerID = null;
var timerRunning = false;
function stopclock () 
{
	if(timerRunning)
	clearTimeout(timerID);
	timerRunning = false;
}
function startclock () 
{
	stopclock();
	showtime();
}
function GoToBanner (Banner)
{
   if(HRefArray[Banner] != "") {
	if (SIZArray[Banner] != "fullscreen") {		
		popup = window.top.open(HRefArray[Banner],"",'toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=0,width=0,height=0,top=0,left=0');
	} else {
		document.location.href=HRefArray[Banner];	
	}
   }
}
function GoToSponsor (Sponsor)
{
   if(S_HRefArray[Sponsor] != "") {
	if (S_SIZArray[Sponsor] != "fullscreen") {
		popup = window.top.open(S_HRefArray[Sponsor],"",'toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=0,width=0,height=0,top=0,left=0');
	} else {
		popup = window.top.open(S_HRefArray[Sponsor],"",'toolbar=1,location=1,directories=1,status=1,menubar=1,resizable=1,width='+screenWidth+',height='+screenHeight+',top=0,left=0');
	}
   }
}

function GoToX (nWhere)
{
	popup = window.top.open(nWhere,"",'toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=0,width=720,height=450,top=0,left=0');
}
function GoToX2 (nWhere)
{
	popup = window.top.open(nWhere,"",'toolbar=0,location=0,scrollbars=yes,directories=0,status=0,menubar=0,resizable=0,width=560,height=450,top=0,left=0');
}

function GoToTop (nWhere)
{
	popup = window.top.open(nWhere,"",'toolbar=1,location=1,directories=1,status=1,menubar=1,resizable=1,width='+screenWidth+',height='+screenHeight+',top=0,left=0');
}

function Validar ()
{
	var cant;
	var i;
	var ok;

	ok = false;

	cant = document.frmEncuesta.Seleccion.length;

	for (i = 0; i < cant; i++) {
		if (document.frmEncuesta.Seleccion(i).checked) {
			ok = true;
		}
	}

	if ( ok ) {
		return true;
	} else {
		alert('Elija una opción');
		return false;
	}
}