var news_conteudo;

function Ajax() {
	var ajax;
	try{
		ajax = new XMLHttpRequest(); // Apple Safari 1.2+ , Mozilla 0.7.3+- , Opera Browser 7.60 P1+ (opera aceita só get, não suporta o método setRequestHeader())
	}catch(e){
		try{
			ajax = new ActiveXObject("Msxml2.XMLHTTP"); // Internet Explorer 5-
		}catch(e){
			try{
				ajax = new ActiveXObject("Microsoft.XMLHTTP"); // Internet Explorer 6+
			}catch(e){
				ajax = false;
			}
		}
	}
	return ajax;
};


//NEWSLETTER:
function news(news_nome, news_email) {
	var parametros = "?news_nome="+news_nome+"&news_email="+news_email;

	var ajax = new Ajax();
	ajax.open('get', 'cadastro_news.php'+parametros, true);
	ajax.onreadystatechange = function() {
		if (ajax.readyState == 4) {
			if (ajax.status == 200) {
				news_conteudo=	document.getElementById('newsletter').innerHTML;
				document.getElementById('newsletter').innerHTML = ajax.responseText;
			}
		}
	}
	
	ajax.send(null);

	return false;
}

function news_voltar() {
	document.getElementById('newsletter').innerHTML = news_conteudo;
}
function envia_news() {
	var news_nome= document.news_form.news_nome.value
	var news_email= document.news_form.news_email.value
	news(news_nome, news_email);
}