var req;

function votar(id_enquete,opcao) {		
        var url = "_include_enquete.php?id_enquete="+id_enquete+"&opcao="+opcao;
        if(window.XMLHttpRequest) {
                req = new XMLHttpRequest();
        } else if(window.ActiveXObject) {
                req = new ActiveXObject("Microsoft.XMLHTTP");
        }
        req.open("GET", url, true);
        req.onreadystatechange = callbackEnquete;
        req.send(null);
}

function callbackEnquete() {     
        obj = document.getElementById("ResultadoEnquete");
		objOpcoes = document.getElementById("OpcoesEnquete");
        
		if(req.readyState == 4) {
                if(req.status == 200) {
                        response = req.responseText;
						objOpcoes.style.display="none";
						obj.innerHTML = response;
                } else {
                        alert("Problema na captura da data:\n" + req.statusText);
                }
        }
}

function getCheckedValue(radioObj) {
    if(!radioObj)
        return "";
    var radioLength = radioObj.length;
    if(radioLength == undefined)
        if(radioObj.checked)
            return radioObj.value;
        else
            return "";
    for(var i = 0; i < radioLength; i++) {
        if(radioObj[i].checked) {
            return radioObj[i].value;
        }
    }
    return "";
}