var xmlhttp

function chargerTexte(occurence,fichier) {
    xmlhttp=null;
  if (window.XMLHttpRequest) {
      xmlhttp=new XMLHttpRequest()
  } else if (window.ActiveXObject) {
     xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
  }
 if (xmlhttp!=null)  {
     xmlhttp.onreadystatechange=function () {
		  if (xmlhttp.readyState==4) {
		       if (xmlhttp.status==200) {
		           var xmlDoc=xmlhttp.responseXML
		           if (occurence<0) occurence=xmlDoc.getElementsByTagName('title').length-1
		           if (occurence>xmlDoc.getElementsByTagName('title').length-1) occurence=0
		           document.getElementById('titre').innerHTML=xmlDoc.getElementsByTagName('title')[occurence].firstChild.nodeValue
		           var page=xmlDoc.getElementsByTagName('location')[occurence].firstChild.nodeValue
		           chargerPage('corps',page.substr(0,page.indexOf('.')))
		           document.getElementById('compteur').value=occurence
		      } else {
		                alert("statusText: " + xmlhttp.statusText + "\nHTTP status code: " + xmlhttp.status);
		      }
		  }
     }
     xmlhttp.open("GET", fichier, true);
     xmlhttp.send(null);
  } else {
     alert("The XMLHttpRequest not supported");
  }
}