var http_request = false;

function makePOSTRequest(url, parameters) {
  http_request = false;
  if (window.XMLHttpRequest) { // Mozilla, Safari,...
    http_request = new XMLHttpRequest();
    if (http_request.overrideMimeType) {
      http_request.overrideMimeType('text/html');
    }
  } else if (window.ActiveXObject) { // IE
    try {
      http_request = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
      try {
        http_request = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (e) {}
    }
  }
  if (!http_request) {
    alert('Não foi possível criar objeto XMLHTTP');
    return false;
  }
  http_request.onreadystatechange = alertContents;
  http_request.open('POST', url, true);
  http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  http_request.setRequestHeader("Content-length", parameters.length);
  http_request.setRequestHeader("Connection", "close");
  http_request.send(parameters);
}

function alertContents() {
  var sendMessage = document.getElementById('sendMessage');

  if (http_request.readyState == 1) {
    sendMessage.innerHTML = "Enviando...";
  }
  if (http_request.readyState == 4) {
    if (http_request.status == 200) {
      result = http_request.responseText;

      if (result == 1) {
        sendMessage.innerHTML = "Sugestão enviada com sucesso.";
      } else {
        sendMessage.innerHTML = "Falha enviando o voto."
      }
    } else {
      sendMessage.innerHTML = "Falha enviando o voto."
    }
  }
}

function send(rank, recipe) {
  hideBaloons();
  var poststr = "rate=" + rank
              + "&recipe=" + recipe;
  makePOSTRequest('./rate.php', poststr);
}

function hideBaloons() {
            document.getElementById('ruim').style.visibility = 'hidden';
            document.getElementById('boa').style.visibility = 'hidden';
            document.getElementById('regular').style.visibility = 'hidden';
            document.getElementById('excelente').style.visibility = 'hidden';
}

function hide(id) {
            document.getElementById(id).style.visibility = 'hidden';
}
function over(id) {
            document.getElementById(id).style.visibility = 'visible';
}

        function mouseOut()
        {
            document['red'].src = 'http://www.nutricentral.com.br/images/bar[gray].gif';
            document['orange'].src = 'http://www.nutricentral.com.br/images/bar[gray].gif';
            document['yellow'].src = 'http://www.nutricentral.com.br/images/bar[gray].gif';
            document['green'].src = 'http://www.nutricentral.com.br/images/bar[gray].gif';
            hideBaloons();
        }
        function redOver()
        {
            document['red'].src = 'http://www.nutricentral.com.br/images/bar[red].gif';
            document.getElementById('ruim').style.visibility = 'visible';
        }
        function orangeOver()
        {
            document['red'].src = 'http://www.nutricentral.com.br/images/bar[red].gif';
            document['orange'].src = 'http://www.nutricentral.com.br/images/bar[orange].gif';
            document.getElementById('regular').style.visibility = 'visible';
            
        }
        function yellowOver()
        {
            document['red'].src = 'http://www.nutricentral.com.br/images/bar[red].gif';
            document['orange'].src = 'http://www.nutricentral.com.br/images/bar[orange].gif';
            document['yellow'].src = 'http://www.nutricentral.com.br/images/bar[yellow].gif';
            document.getElementById('boa').style.visibility = 'visible';
        }
        function greenOver()
        {
            document['red'].src = 'http://www.nutricentral.com.br/images/bar[red].gif';
            document['orange'].src = 'http://www.nutricentral.com.br/images/bar[orange].gif';
            document['yellow'].src = 'http://www.nutricentral.com.br/images/bar[yellow].gif';
            document['green'].src = 'http://www.nutricentral.com.br/images/bar[green].gif';
            document.getElementById('excelente').style.visibility = 'visible';
        }