Co liveboxjavascript

var connexionHttp=new ajaxRequest()
connexionHttp.open("POST", "http://192.168.1.254/authenticate?username=admin&password=64D1137E", true);
http.onreadystatechange=function()
{
  var rebootHttp=new ajaxRequest();
  rebootHttp.open("POST", "http://192.168.1.254/sysbus/NMC:reboot", true);
  rebootHttp.setRequestHeader("Content-Type", "application/json");
  rebootHttp.setRequestHeader("X-Context", http.data.contextID);
  rebootHttp.send("parameters:{}");
};

connexionHttp.setRequestHeader("Content-Type", "application/json");
connexionHttp.send("");