function  authentification(email,password)
	{

		var req = null;

		//document.ajax.dyn.value="Started...";

		if (window.XMLHttpRequest)
		{
 			req = new XMLHttpRequest();

		}
		else if (window.ActiveXObject)
		{
			try {
				req = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e)
			{
				try {
					req = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {}
			}
        	}


		req.onreadystatechange = function()
		{
			//document.ajax.dyn.value="Wait server...";
			if(req.readyState == 4)
			{
				if(req.status == 200)
				{
		            doc = req.responseXML;


					if (doc.getElementsByTagName ("etat")['0'].firstChild.nodeValue == "true")
					{

							document.getElementById("span1").innerHTML = ' <span id="span1"><a class="spanbar" href="?pg=default">Accueil </a></span>';document.getElementById("span2").innerHTML = ' <span id="span2"><a class="spanbar" href="?pg=news_read">Actualit&eacute;s </a></span>';document.getElementById("span3").innerHTML = ' <span id="span3"><a class="spanbar" href="?pg=photos">Photos </a></span>';document.getElementById("span4").innerHTML = ' <span id="span4"><a class="spanbar" href="?pg=resultats">R&eacute;sultats </a></span>';document.getElementById("span5").innerHTML = ' <span id="span5"><a class="spanbar" href="?pg=partenaires">Partenaires </a></span>';document.getElementById("span6").innerHTML = ' <span id="span6"><a class="spanbar" href="?pg=presse">Presse </a></span>';document.getElementById("span7").innerHTML = ' <span id="span7"><a class="spanbar" href="?pg=contact">Contact </a></span>';document.getElementById("span8").innerHTML = ' <span id="span8"><a class="spanbar" href="?pg=agenda">Agenda </a></span>';document.getElementById("span9").innerHTML = ' <span id="span9"><a class="spanbar" href="?pg=blog">Blog </a></span>';document.getElementById("span10").innerHTML = ' <span id="span10"><a class="spanbar" href="?pg=afficherNewsletters">Newsletters </a></span>';



    					var NoeudNom = doc.getElementsByTagName ("nom") ;
						var NoeudPrenom = doc.getElementsByTagName ("prenom") ;
						var NoeudEmail = doc.getElementsByTagName ("email") ;
						var nom = NoeudNom['0'].firstChild.nodeValue;
						var prenom = NoeudPrenom['0'].firstChild.nodeValue;
               			var email = NoeudEmail['0'].firstChild.nodeValue;
  						document.getElementById("identif_box").innerHTML = '<span class="style_standard_blanc">Bienvenue '+prenom+' '+nom+'<br/><a class="style_standard_blanc" href="fenetre/deconnexion.php">[Se d&eacute;connecter]</a></span>';
						location.reload();
					}

					else

					{

					alert(doc.getElementsByTagName ("erreur")['0'].firstChild.nodeValue);

					}



				}
				else
				{
					alert(req.status);
				}
			}
		};
		req.open("GET", 'fenetre/identif_xml_ajax.php?email='+email+'&password='+password+'', true);
		req.send(null);
	}