AJAX ... Une vraie solution ???

<response>
    <authorized>true</authorized>
    <userid>2</userid>
    <userlogin>calvin80</userlogin>
    <fullname>Try to guess..</fullname>
    <userpwd>123456</userpwd>
    <world>pluton</world>
    <server>164.XX.XX.XXX</server>
    <profiles>
       <profile id="1">profile 1</profile>
       <profile id="2">profile 2</profile>
       <profile id="3">profile 3</profile>
   </profiles>
</response>

//-----------------------------------------------------------------------------
function AutoConnectResponse()
{
	//alert("Serveur Response :"+xmlrequester.responseText);
	loginresponse=xmlrequester.responseXML;
	authorized=loginresponse.getElementsByTagName("authorized")[0];
	if(!authorized)
	{
		errMsg="Cannot retrieve authorization from serveur !";
		DisplayStatus("not connected");
		DisplayStatusImg("disconnected");
		return;
	}
	if(authorized.firstChild.nodeValue=="true")
	{
		window.gUser.userlogin=loginresponse.getElementsByTagName("userlogin")[0].firstChild.nodeValue;
		window.gUser.userid=loginresponse.getElementsByTagName("userid")[0].firstChild.nodeValue;
		window.gUser.userpwd=loginresponse.getElementsByTagName("userpwd")[0].firstChild.nodeValue;
		window.gUser.world=loginresponse.getElementsByTagName("world")[0].firstChild.nodeValue;
		window.gUser.server=loginresponse.getElementsByTagName("server")[0].firstChild.nodeValue;
		
		var fullname=loginresponse.getElementsByTagName("fullname")[0].firstChild.nodeValue;
		window.gUser.galilei_connected=true;
		//save Params
		SaveParams();
		//load profiles list
		profiles=loginresponse.getElementsByTagName("profile");
		window.gUser.profiles=new Array();
		for (i=0;i<profiles.length; i++)
		{
			window.gUser.profiles[profiles[i].getAttribute("id")]=profiles[i].firstChild.nodeValue;
		}
		//change profilelist
		window.DisplayProfiles();
		DisplayStatus(window.gUser.userlogin+" connected");
		DisplayStatusImg("connected");
	}
	else
	{
		errMsg=loginresponse.getElementsByTagName("errMsg")[0];
		DisplayStatus("not connected");
		DisplayStatusImg("disconnected");
	}
}

//-----------------------------------------------------------------------------
]

<root>
   <line>
      <Societe size="180px" align="">Edoplan</Societe>
      <Groupe size="150px" align="">Service informatique</Groupe>
      <Nom size="100px" align="">Massart</Nom>
      <Prenom size="100px" align="">Hugues</Prenom>
      <Tel size="100px" align="center">...</Tel>
      <GSM size="100px" align="center">...</GSM>
      <Fax size="100px" align="center">...</Fax>
   </line>
   <line>
       .....
   </line>
   <line>
       .....
   </line>
   <line>
       .....
   </line>
   <line>
       .....
   </line>
</root>

var x = xmlDoc.getElementsByTagName('root');
	x = x[0].childNodes;

			if(x[i].childNodes[j].hasChildNodes())
				var theData = document.createTextNode(x[i].childNodes[j].firstChild.nodeValue);
			else var theData = document.createTextNode(" ");

function importXML(request)
{
	if (document.implementation && document.implementation.createDocument)
	{
		xmlDoc = document.implementation.createDocument("", "", null);
		xmlDoc.onload = traitement_http;
	}
	else if (window.ActiveXObject)
	{
		xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
		xmlDoc.onreadystatechange = function () {
			if (xmlDoc.readyState == 4) traitement_http()
		};
 	}
	else
	{
		alert('Your browser can\'t handle this script');
		return;
	}
	xmlDoc.load(request);
}