function connexion()
{
	var login = document.getElementById('login').value;
	var pass = document.getElementById('pass').value;
	var resL = document.getElementById('resL').value;
	var resH = document.getElementById('resH').value;
	var xhrconnexion = new_xhr();
	xhrconnexion.open("POST", "./cfg/testAuth.php", true);
	xhrconnexion.onreadystatechange = function ()
	{
		if ( xhrconnexion.readyState == 4 )
		{
			if(xhrconnexion.status  != 200)
			{
				document.getElementById("contenupmkt").innerHTML ="Erreur code " + xhrconnexion.status;
			}
			else
			{
				document.getElementById("contenupmkt").innerHTML = xhrconnexion.responseText;
			}
		}
		else
		{
			document.getElementById("contenupmkt").innerHTML = "<center>Chargement en cours<br /><img src='./medias/pmkt/loading.gif' alt='Chargement'/></center>";
		}
	}
	
	xhrconnexion.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	xhrconnexion.send("login="+login+"&pass="+pass+"&resL="+resL+"&resH="+resH);
}