function getXMLHttpRequest(){var a=null;if(window.XMLHttpRequest||window.ActiveXObject)if(window.ActiveXObject)try{a=new ActiveXObject("Msxml2.XMLHTTP")}catch(b){a=new ActiveXObject("Microsoft.XMLHTTP")}else a=new XMLHttpRequest;else{alert("Votre navigateur ne supporte pas Ajax");return null}return a}function creerRendu(){var a=document.createElement("Div");a.innerHTML=" div exemple pour tester js";a.style.backgroundColor="blue";a.style.position="absolute";a.style.marginTop="-500px";document.getElementById("contenu").appendChild(a)}function divAsynchrone(b){var a=getXMLHttpRequest();a.open("GET",b,true);a.send(null);a.onreadystatechange=function(){if(a.readyState==4&&(a.status==200||a.status==0)&&a.responseText!="")creerRendu(a.responseText)}}