// stores the reference to the XMLHttpRequest object
var xmlHttp = createXmlHttpRequestObject();

// retrieves the XMLHttpRequest object
function createXmlHttpRequestObject()
{
  // will store the reference to the XMLHttpRequest object
  var xmlHttp;
  // if running Internet Explorer
  if(window.ActiveXObject)
  {
    try
    {
      xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    catch (e)
    {
      xmlHttp = false;
    }
  }
  // if running Mozilla or other browsers
  else
  {
    try
    {
      xmlHttp = new XMLHttpRequest();
    }
    catch (e)
    {
      xmlHttp = false;
    }
  }
  // return the created object or display an error message
  if (xmlHttp)
  {
    return xmlHttp;
  }
}

// make asynchronous HTTP request using the XMLHttpRequest object
function update_rates_handler(url_pars)
{
  if (xmlHttp.readyState == 4 || xmlHttp.readyState == 0)
  {
    xmlHttp.open("GET", "update_rates.php?" + url_pars, true);
    // define the method to handle server responses
    xmlHttp.onreadystatechange = handleServerResponse;
    // make the server request
    xmlHttp.send(null);
  }else{
    setTimeout('update_rates_handler(url_pars)', 1000);
  }
}

// executed automatically when a message is received from the server
function handleServerResponse()
{
  if (xmlHttp.readyState == 4)
  {
    if (xmlHttp.status == 200)
    {
      xmlResponse = xmlHttp.responseXML;
      xmlDocumentElement = xmlResponse.documentElement;

      var RateXML = xmlDocumentElement.getElementsByTagName("rate");
      var StatXML = xmlDocumentElement.getElementsByTagName("stat");
      var BallsXML = xmlDocumentElement.getElementsByTagName("balls");
      var ImagesXML = xmlDocumentElement.getElementsByTagName("images");

      var Rate = RateXML.item(0).firstChild.nodeValue;
      var Stat = StatXML.item(0).firstChild.nodeValue;
      var Balls = BallsXML.item(0).firstChild.nodeValue;
      var Images = ImagesXML.item(0).firstChild.nodeValue;

      if (Rate=="error")
      	return false;

      ProjectImages = document.getElementById(Images);
      ProjectImages.innerHTML='';

      ProjectBalls = document.getElementById(Balls);
      ProjectBalls.innerHTML=Stat;

    }
  }
}

function update_rates(url_update_rates)
{
    update_rates_handler(url_update_rates);
	return false;
}

// make asynchronous HTTP request using the XMLHttpRequest object
function update_rates_art_handler(url_pars)
{
  if (xmlHttp.readyState == 4 || xmlHttp.readyState == 0)
  {
    xmlHttp.open("GET", "update_rates_art.php?" + url_pars, true);
    // define the method to handle server responses
    xmlHttp.onreadystatechange = handleServerResponseArt;
    // make the server request
    xmlHttp.send(null);
  }else{
    setTimeout('update_rates_art_handler(url_pars)', 1000);
  }
}

// executed automatically when a message is received from the server
function handleServerResponseArt()
{
  if (xmlHttp.readyState == 4)
  {
    if (xmlHttp.status == 200)
    {
      xmlResponse = xmlHttp.responseXML;
      xmlDocumentElement = xmlResponse.documentElement;

      var RateXML = xmlDocumentElement.getElementsByTagName("rate");
      var StatXML = xmlDocumentElement.getElementsByTagName("stat");
      var BallsXML = xmlDocumentElement.getElementsByTagName("balls");
      var ImagesXML = xmlDocumentElement.getElementsByTagName("images");

      var Rate = RateXML.item(0).firstChild.nodeValue;
      var Stat = StatXML.item(0).firstChild.nodeValue;
      var Balls = BallsXML.item(0).firstChild.nodeValue;
      var Images = ImagesXML.item(0).firstChild.nodeValue;

      if (Rate=="error")
      	return false;

      ProjectImages = document.getElementById(Images);
      ProjectImages.innerHTML='';

      ProjectBalls = document.getElementById(Balls);
      ProjectBalls.innerHTML=Stat;

    }
  }
}

function update_rates_art(url_update_rates)
{
    update_rates_art_handler(url_update_rates);
	return false;
}