function httpRequest(div,file){
var xhr_object = null;
if(window.XMLHttpRequest) // Firefox
   xhr_object = new XMLHttpRequest();
else if(window.ActiveXObject) // Internet Explorer
   xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
else { // XMLHttpRequest non supporté par le navigateur
   alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest...");
   return;
}

var div = div;
var file = file;

xhr_object.open("POST", file, true);

xhr_object.onreadystatechange = function() {
   if(xhr_object.readyState == 4){
   //alert(file);
document.getElementById(div).innerHTML = xhr_object.responseText;
//Element.hide(div); 
//new Effect.Appear(div);
   }
}  
xhr_object.send(null);
}

function EffectsLoad(){
	Element.hide('ambiance'); 
	Element.hide('btnambiance');
	Element.hide('photo'); 
	Effect.BlindDown('ambiance'); 
	window.setTimeout('Effect.Appear(\'photo\', {duration:.5})',900);
}