// JavaScript Document
var req;
var txt;


function loadXMLDocN(url,valor, valor2)
{
	req = null;
    // Procura por um objeto nativo (Mozilla/Safari)
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = processReqChangeN;
        req.open("GET", url+'?email='+valor+'&nome='+valor2, true);
        req.send(null);
    // Procura por uma versao ActiveX (IE)
    } else if (window.ActiveXObject) {
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = processReqChangeN;
            req.open("GET", url+'?email='+valor+'&nome='+valor2, true);
            req.send();
        }
    }
}


function processReqChangeN()
{
    // apenas quando o estado for "completado"
    if (req.readyState == 4) {
        // apenas se o servidor retornar "OK"
        if (req.status == 200) {
           
			document.getElementById('atualizarN').innerHTML = req.responseText;
			
        } else {
            alert("Houve um problema ao obter os dados1:\n" + req.statusText);
        }
    }
}




function newsletter(valor)
{
	if(valor == 1)
	{
		valor = document.getElementById("email").value;
		valor2 = document.getElementById("nome").value;
		document.getElementById('atualizarN').innerHTML = '<div align="center"><img src="imagens/loading.gif"></div>';
		loadXMLDocN("xtNewsletter.php",valor, valor2);
	}
	else
	{
		document.getElementById('atualizarN').innerHTML = '<p>Cadastre-se e receba Artigos e Not&iacute;cias periodicamente.</p>            <br />            <input name="nome" type="text" class="tf-newsletter"  id="nome" style="width:160px; height:16px;" value="Nome" onfocus="javascript: if(this.value == \'Nome\') this.value = \'\';" onblur="javascript: if(this.value == \'\') this.value = \'Nome\'" />            <input name="email" type="text" class="tf-newsletter"  id="email" style="width:160px; height:16px;" value="E-mail" onfocus="javascript: if(this.value == \'E-mail\') this.value = \'\';" onblur="javascript: if(this.value == \'\') this.value = \'E-mail\'" />            <input name="ok" type="image" id="enviar3" src="imagens/bt-enviar.jpg" width="66" height="20" border="0" onclick="newsletter(1)"  />';	
		}
}