function makeRequest(url, parameters, ajax, id) {
        var httpRequest;

        if (window.XMLHttpRequest) { // Mozilla, Safari, ...
            httpRequest = new XMLHttpRequest();
            if (httpRequest.overrideMimeType) {
                httpRequest.overrideMimeType('text/xml');
				//httpRequest.setRequestHeader('UTF-8');
                // See note below about this line
            }
        } 
        else if (window.ActiveXObject) { // IE
            try {
                httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
            } 
            catch (e) {
                try {
                    httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
                } 
                catch (e) {}
            }
        }

        if (!httpRequest) {
            alert('Giving up :( Cannot create an XMLHTTP instance');
            return false;
        }
		document.getElementById(ajax).style.display ='block';
		document.getElementById(id).style.display ='none';
        httpRequest.onreadystatechange = function() { alertContents(httpRequest, ajax, id); };
        httpRequest.open('GET', url+parameters, true);
        httpRequest.send('');

    }

   function alertContents(httpRequest, ajax, id) {
  
        if (httpRequest.readyState == 4) {
            if (httpRequest.status == 200) {
				document.getElementById(ajax).style.display ='none';
				document.getElementById(id).style.display ='block';
				document.getElementById(id).innerHTML = httpRequest.responseText;
				


				
            }else{
                alert('Un problème est survenu lors de la récupération des données.');
            }
        }

    }