function Intervalo(){
	setTimeout('Atualiza()',1);
	setInterval('Atualiza()',1000);
}

function Atualiza(){
var objAjax, strResposta;
	try {
	  objAjax = new XMLHttpRequest();
	}
	catch(e1) {
		try {
		   objAjax = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(e2) {
			try {
				objAjax = new ActiveXObject("Microsoft.XMLHTTP");
			} 
			catch(e3) {
				alert("Por favor, atualize o seu browser para que o sistema funcione corretamente!");
				objAjax = null;
				return false;
			}
		}
	}
	if (objAjax != null) {
		objAjax.open("POST", "ajax/hora.php", true);
		objAjax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		objAjax.onreadystatechange = function() {
			if (objAjax.readyState == 4 && objAjax.status == 200) {
				strResposta = objAjax.responseText;
				document.getElementById("RespostaHora").innerHTML = strResposta;
			}
		}
	}
	//strDadosUser = "formgo=true&txtEmail="+escape(document.getElementById(''+objEm+'').value)+"&txtSenha="+escape(document.getElementById(''+objSe+'').value)+"";
	objAjax.send(null);
}