/*xweb_js*/function XHR(){var xhr=null;if(window.XMLHttpRequest)xhr=new XMLHttpRequest();else if(window.ActiveXObject){try{xhr=new ActiveXObject("Msxml2.XMLHTTP");}catch(e){xhr=new ActiveXObject("Microsoft.XMLHTTP");}}else{alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest...");xhr=false;}return xhr;}