function GetXmlHttpObject()
{
	try {
	  // Firefox, Opera 8.0+, Safari
	  xmlHttp=new XMLHttpRequest();
	} catch (e) {
	  // Internet Explorer
	  try {
		xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
	  } catch (e) {
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
	  }
	}
	return xmlHttp;
}

function loadPage(ahrefObject)
{
	loadUrl(ahrefObject.href);
}

function loadUrl(url)
{
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	{
	  alert ("Votre navigateur ne supporte pas Ajax. Choisissez firefox !");
	  return;
  	} 
	xmlHttp.onreadystatechange=fillContents;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function fillContents() {
	if (xmlHttp.readyState==4)
	{ 
		document.getElementById("contents").innerHTML=xmlHttp.responseText;		
	}
	if (xmlHttp.readyState==2 || xmlHttp.readyState==3)
	{ 
		document.getElementById("contents").innerHTML="Chargement...";
	}
}