function ChangeOnglet(onglet, contenu) {	
  document.getElementById('content_1').style.display = 'none';
  document.getElementById('content_2').style.display = 'none';
  document.getElementById('content_3').style.display = 'none';
  document.getElementById('content_4').style.display = 'none';
  document.getElementById('content_5').style.display = 'none';	
  document.getElementById('content_6').style.display = 'none';	
  document.getElementById(contenu).style.display = 'block';		

  document.getElementById('tab_1').className = '';
  document.getElementById('tab_2').className = '';
  document.getElementById('tab_3').className = '';
  document.getElementById('tab_4').className = '';
  document.getElementById('tab_5').className = '';
  document.getElementById('tab_6').className = '';
  document.getElementById(onglet).className = 'active';
	
  if (onglet=='tab_4')
  {
    AfficheCompteur();
  }
}

function ChangePage(contenu) {	
  document.getElementById('contentv_1').style.display = 'none';
  document.getElementById('contentv_2').style.display = 'none';
  document.getElementById('contentv_3').style.display = 'none';
  document.getElementById('contentv_4').style.display = 'none';
  document.getElementById('contentv_5').style.display = 'none';
  document.getElementById(contenu).style.display = 'block';			
}

function ChangePage2(contenu) {	
  document.getElementById('contentw_1').style.display = 'none';
  document.getElementById('contentw_2').style.display = 'none';
  document.getElementById('contentw_3').style.display = 'none';
  document.getElementById('contentw_4').style.display = 'none';
  document.getElementById('contentw_5').style.display = 'none';
  document.getElementById(contenu).style.display = 'block';			
}


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..."); 
    xhr = false; 
  } 
}

function getCompteur()
{
  getXhr();

  xhr.onreadystatechange = function()
  {
    if(xhr.readyState == 4 && xhr.status == 200)
    {
      var docXML= xhr.responseXML;
      var items = docXML.getElementsByTagName("list");
      number=items[0].getElementsByTagName('e')[0].firstChild.nodeValue;
      document.getElementById('cpt').innerHTML=number;
    }
  }
  xhr.open("GET","compteur.php", true);
  xhr.send(null);
}

function AfficheCompteur ()
{
  getXhr();

  xhr.onreadystatechange = function()
  {
    if(xhr.readyState == 4 && xhr.status == 200)
    {
      var docXML= xhr.responseXML;
      var items = docXML.getElementsByTagName("list");
      number=items[0].getElementsByTagName('e')[0].firstChild.nodeValue;
      document.getElementById('cpt').innerHTML=number;
    }
  }
  xhr.open("GET","AfficheCompteur.php", true);
  xhr.send(null);
}

function updateCpt ()
{
  number=document.getElementById('cpt').innerHTML;
  number++;
  document.getElementById('cpt').innerHTML=number;
}