// JavaScript Document

// holds an instance of XMLHttpRequest
var xmlHttp = createXmlHttpRequestObject();
// holds the remote server address 
var serverAddress_mail = "_mmServerScripts/sendCart.php";
var serverAddress_qte = "_mmServerScripts/changeCart.php";
// when set to true, display detailed error messages


var showErrors = true;
// initialize the validation requests cache 
//var cache = new Array();


// creates an XMLHttpRequest instance
function createXmlHttpRequestObject() 
{
  // will store the reference to the XMLHttpRequest object
  var xmlHttp;
  // this should work for all browsers except IE6 and older
  try
  {
    // try to create XMLHttpRequest object
    xmlHttp = new XMLHttpRequest();
  }
  catch(e)
  {
    // assume IE6 or older
    var XmlHttpVersions = new Array("MSXML2.XMLHTTP.6.0",
                                    "MSXML2.XMLHTTP.5.0",
                                    "MSXML2.XMLHTTP.4.0",
                                    "MSXML2.XMLHTTP.3.0",
                                    "MSXML2.XMLHTTP",
                                    "Microsoft.XMLHTTP");
    // try every id until one works
    for (var i=0; i<XmlHttpVersions.length && !xmlHttp; i++) 
    {
      try 
      { 
        // try to create XMLHttpRequest object
        xmlHttp = new ActiveXObject(XmlHttpVersions[i]);
      } 
      catch (e) {} // ignore potential error
    }
  }
  // return the created object or display an error message
  if (!xmlHttp)
    displayError("Error creating the XMLHttpRequest object.");
  else 
    return xmlHttp;
}

// function that displays an error message
function displayError($message)
{
  // ignore errors if showErrors is false
  if (showErrors)
  {
    // turn error displaying Off
    //showErrors = false;
 
    alert("Erreur: \n" + $message);
    exit();
  }
}


function changeCart(reference, typeProd)
{
  // only continue if xmlHttp isn't void
  if (xmlHttp)
  {
	  /// Cursor d'attente
	  var box = document.getElementById("wait_"+reference);
	  box.innerHTML = '<img src="images/ajax-loader_10x10.gif" width="10" height="10" />';
	  var value = document.getElementById("value_"+reference).value;
	  
	  cache = 'reference=' + reference + '&quantite=' + value + '&typeProd=' + typeProd;;
	  //alert(cache);
    // try to connect to the server
    try
    {
		// continue only if the XMLHttpRequest object isn't busy
		// and the cacheOptions is not empty
		if (xmlHttp.readyState == 4 || xmlHttp.readyState == 0)
		{
			// make a server request to validate the extracted data
			xmlHttp.open("POST", serverAddress_qte, true);
			xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
			xmlHttp.onreadystatechange = handleRequestStateChange;
			xmlHttp.send(cache);
		}
    }
		catch (e)
    {
		// display an error when failing to connect to the server
		displayError(e.toString());
	}
  }
}

function suppressCart(reference, typeProd)
{
  // only continue if xmlHttp isn't void
  if (xmlHttp)
  {
	  /// Cursor d'attente
	  var box = document.getElementById("wait_"+reference);
	  box.innerHTML = '<img src="images/ajax-loader_10x10.gif" width="10" height="10" />';
	  var value = document.getElementById("value_"+reference).value;
	  
	  cache = 'reference=' + reference + '&quantite=0&typeProd=' + typeProd;;
	  //alert(cache);
    // try to connect to the server
    try
    {
		// continue only if the XMLHttpRequest object isn't busy
		// and the cacheOptions is not empty
		if (xmlHttp.readyState == 4 || xmlHttp.readyState == 0)
		{
			// make a server request to validate the extracted data
			xmlHttp.open("POST", serverAddress_qte, true);
			xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
			xmlHttp.onreadystatechange = handleRequestStateChange;
			xmlHttp.send(cache);
		}
    }
		catch (e)
    {
		// display an error when failing to connect to the server
		displayError(e.toString());
	}
  }
}


// function that handles the HTTP response
function handleRequestStateChange() 
{
  // when readyState is 4, we read the server response
  if (xmlHttp.readyState == 4) 
  {
    // continue only if HTTP status is "OK"
    if (xmlHttp.status == 200) 
    {
      try
      {
        // read the response from the server
        readResponse();
	  }
      catch(e)
      {
        // display error message
        displayError(e.toString());
      }
    }
    else
    {
      // display error message
      displayError(xmlHttp.statusText);
    }
  }
}

// read server's response 
function readResponse()
{
	// retrieve the server's response 
	var response = xmlHttp.responseText;
	// server error?
	if (response.indexOf("ERRNO") >= 0 || response.indexOf("error:") >= 0 || response.length == 0)
	throw(response.length == 0 ? "Server error." : response);
	// get response in XML format (assume the response is valid XML)
	responseXml = xmlHttp.responseXML;

	////// RECUPERATION DES RETOUR DU SERVEUR
	// get the document element
	xmlDoc = responseXml.documentElement;
	var result = xmlDoc.getElementsByTagName("result")[0].firstChild.data;
	
	
  ////// PRISE EN CHARGE REPONSES DES OPTIONS
  document.location.href="panier.php";
 
 /*if (result == "qte")
  {
	var reference = xmlDoc.getElementsByTagName("reference")[0].firstChild.data;
	var quantite = xmlDoc.getElementsByTagName("quantite")[0].firstChild.data;
	var box = document.getElementById("wait_"+reference);
	box.innerHTML = 'Quantit&eacute;';
	 
	document.location.href="panier.php";
	 
  }
  else if (result == "removeEmptyDeco")
  {
		var reference = xmlDoc.getElementsByTagName("reference")[0].firstChild.data;
		var parent = document.getElementById("tableRefs");
		var box = document.getElementById("box_"+reference);
		parent.removeChild(box);
		box.setAttribute("style","display:none:");
		box.style.display = 'none';
		document.location.href="panier.php";
  }
  else if (result == "removeEmptyDecoFinish")
  {
	  var reference = xmlDoc.getElementsByTagName("reference")[0].firstChild.data;
	 // var parent = document.getElementById("tableRefs");
	  var box = document.getElementById("box_"+reference);
	  //parent.removeChild(box);
	  box.setAttribute("style","display:none:");
	  box.style.display = 'none';
	  
	  var mess = document.getElementById("content_deco");
	  mess.innerHTML = "<h2>Aucun article n'a &eacute;t&eacute; ajout&eacute;.</h2>";
  }
  else if (result == "removeEmptyTech")
  {
	  var reference = xmlDoc.getElementsByTagName("reference")[0].firstChild.data;
	  var parent = document.getElementById("tableRefs");
	  var box = document.getElementById("box_"+reference);
	  parent.removeChild(box);
  }
  else if (result == "removeEmptyTechFinish")
  {
	  var reference = xmlDoc.getElementsByTagName("reference")[0].firstChild.data;
	  var parent = document.getElementById("tableRefs");
	  var box = document.getElementById("box_"+reference);
	  parent.removeChild(box);
	  
	  var mess = document.getElementById("content_tech");
	  mess.innerHTML = "<h2>Aucun article n'a &eacute;t&eacute; ajout&eacute;.</h2>";
  }
    else if (result == "removeEmpty")
  {
	  var reference = xmlDoc.getElementsByTagName("reference")[0].firstChild.data;
	  var parent = document.getElementById("tableRefs");
	  var box = document.getElementById("box_"+reference);
	  parent.removeChild(box);
  }
  else if (result == "removeEmptyFinish")
  {
	  var reference = xmlDoc.getElementsByTagName("reference")[0].firstChild.data;
	  var parent = document.getElementById("tableRefs");
	  var box = document.getElementById("box_"+reference);
	  parent.removeChild(box);
	  
	  var mess = document.getElementById("content_tech");
	  mess.innerHTML = "<h2>Aucun article n'a &eacute;t&eacute; ajout&eacute;.</h2>";
  }
  else
  {
	  message = document.getElementById("content");
	  message.innerHTML = "Une erreur est survenue ! Merci de rafra&icirc;chir la page pour essayer à nouveau.";
  }*/
 
}