var xhr = null; 
function Xhr_get(){
	if(window.XMLHttpRequest) // Firefox et autres
	   xhr = new XMLHttpRequest(); 
	else if(window.ActiveXObject){ // Internet Explorer 
	   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 Xhr_give(){
	idDest = (arguments[0] != null) ? arguments[0]:"nulle_part";
	urlcible = (arguments[1] != null) ? arguments[1]:"nulle_part.html";
	parametres = (arguments[2]) ? arguments[2]:null;
	methode = (arguments[3]) ? arguments[3]:"GET";
	async = (arguments[4]) ? arguments[4]:true;
	//document.getElementById("en_attente").style.display="block";
	document.images["logo"].src='_lib/img/tnt_works.gif';
	Xhr_get();
	xhr.onreadystatechange = function(){
		//alert(xhr.readyState+'-->'+xhr.status);
		if(xhr.readyState == 4 && xhr.status == 200){
			document.getElementById(idDest).innerHTML = xhr.responseText;
			//document.getElementById("en_attente").style.display="none";
			document.images["logo"].src='_lib/img/logo.jpg';
		}
	}
	xhr.open(methode,urlcible,async);
	xhr.send(parametres);
}