function makeRequest(page) {

        var xhr;
        if(window.XMLHttpRequest || window.ActiveXObject) {
                if(window.XMLHttpRequest) {
                        xhr = new XMLHttpRequest();
                } 
                else {
                        try {
                                xhr = new ActiveXObject("Msxml2.XMLHTTP");
                        } catch(e) {
                                xhr = new ActiveXObject("Microsoft.XMLHTTP");
                        }
                }
        }
        else {
                alert("Votre navigateur ne supporte pas l'objet XMLHTTPRequest...");
                return;
        }
        
        xhr.onreadystatechange = function() {
                if(xhr.readyState == 4 && (xhr.status == 200 || xhr.status == 0)) {
                        document.getElementById("middle").innerHTML = xhr.responseText;
                }
        } 
        
        xhr.open("GET", page+"?full=false", true);
        xhr.send(null);
        
}