AJAX requests

ajax.js

var myRequest = new XMLHttpRequest();
myRequest.open("GET", url + ((/\?/).test(url) ? "&" : "?") + (new Date()).getTime());
myRequest.open("POST", "http://www.cedeber.fr/");
myRequest.setRequestHeader("Cache-Control", "no-cache");
myRequest.setRequestHeader("Content-Type", "text/plain");
myRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
myRequest.onload = myOnLoadHandlerFunction;
myRequest.send(data||params);