function validaForm_Newsletter(){

		d = document.cadastro;
		texto = "Atenção!";
		
		parte1 = d.email.value.indexOf("@");
		parte2 = d.email.value.indexOf(".");
		parte3 = d.email.value.length;
		
		if (!(parte1 >= 2 && parte2 >= 2 && parte3 >= 9)) {
			alert("O campo EMAIL deve conter um endereco eletronico!");
			d.email.focus();
			return false;
		}
		

		return true;
}

function validaEnvia2(f){

	if (f.nome.value.length == 0){
		alert("Introduza o nome, por favor.");
		f.nome.focus();
		return false;
	}
	if (f.seuemail.value.length == 0){
		alert("Introduza o seu email, por favor.");
		f.seuemail.focus();
		return false;
	}	
	if (f.amigo.value.length == 0){
		alert("Introduza o nome do amigo, por favor.");
		f.amigo.focus();
		return false;
	}
	if (f.email.value.length == 0){
		alert("Introduza o e-mail do amigo, por favor.");
		f.email.focus();
		return false;
	}


	return true;
}


var delayb4scroll=2000 //Specify initial delay before marquee starts to scroll on page (2000=2 seconds)
var marqueespeed=1 //Specify marquee scroll speed (larger is faster 1-10)
var pauseit=1 //Pause marquee onMousever (0=no. 1=yes)?

var copyspeed=marqueespeed
var pausespeed=(pauseit==0)? copyspeed: 0
var actualheight=''

function scrollmarquee(){
if (parseInt(cross_marquee.style.top)>(actualheight*(-1)+8)) //if scroller hasn't reached the end of its height
cross_marquee.style.top=parseInt(cross_marquee.style.top)-copyspeed+"px" //move scroller upwards
else //else, reset to original position
cross_marquee.style.top=parseInt(marqueeheight)+8+"px"
}

function initializemarquee(){
cross_marquee=document.getElementById("vmarquee")
cross_marquee.style.top=0
marqueeheight=document.getElementById("marqueecontainer").offsetHeight
actualheight=cross_marquee.offsetHeight //height of marquee content (much of which is hidden from view)
if (window.opera || navigator.userAgent.indexOf("Netscape/7")!=-1){ //if Opera or Netscape 7x, add scrollbars to scroll and exit
cross_marquee.style.height=marqueeheight+"px"
cross_marquee.style.overflow="scroll"
return
}
setTimeout('lefttime=setInterval("scrollmarquee()",30)', delayb4scroll)
}

if (window.addEventListener)
window.addEventListener("load", initializemarquee, false)
else if (window.attachEvent)
window.attachEvent("onload", initializemarquee)
else if (document.getElementById)
window.onload=initializemarquee