var xhr = null;
function getXhr()
 {
  if(window.XMLHttpRequest) xhr = new XMLHttpRequest(); 
  else if(window.ActiveXObject)
   {  
    try
     {
      xhr = new ActiveXObject("Msxml2.XMLHTTP");
     }
    catch (e)
     {
      xhr = new ActiveXObject("Microsoft.XMLHTTP");
     }
   }
  else 
   { 
    alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest, veuillez le mettre à jour"); 
    xhr = false; 
   } 
 }
titre = document.title;
function affPixel(id)
 {
	
	document.getElementById('detailPixel').innerHTML = "<br>";
	document.getElementById("detailPixel").style.background ="url(img/load.gif) no-repeat center"; 
 	getXhr();
  xhr.onreadystatechange = function()
   {
    if(xhr.readyState == 4 && xhr.status == 200)
     {
		
      document.getElementById('detailPixel').innerHTML = xhr.responseText;
	  //document.title = titre+" - "+document.getElementById('detailPixel').h3.innerHTML

	  document.getElementById("detailPixel").style.background = "center";
     }
   }
  xhr.open("POST",'gen/pixAjax.php',true);
  xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
  xhr.send("id="+id);
 }