// images are loaded asynchronously with no delay

function getXhr(){
	var xhr = null; 
	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 { // XMLHttpRequest non supporté par le navigateur 
	   alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest..."); 
	   xhr = false; 
	}
return xhr;
}

function loading_image(nom_image)
{
	var xhr = getXhr();

	xhr.onreadystatechange=function()
	{ 
		if(xhr.readyState == 4)
		{
			var content = xhr.responseText;
			document.getElementById('contenu_centre_droit').innerHTML = content;
		} 
	}; 

	xhr.open("GET", "/aztek/Includes/load_image.php?img="+nom_image , true);
	xhr.send(null); 
}