var REDIRECT_URL = http://localhost:8080/skydrive/callback.jsp why not write http://localhost:8080/skydrive/callback.jsp

Question

var APP_CLIENT_ID="000000004C0C600A";
  var REDIRECT_URL="https://oauth.live.com/desktop";
  WL.init({
     client_id:APP_CLIENT_ID,
      redirect_uri:REDIRECT_URL,
      spoces:"wl.signin", 
      response_type:"token"
  });   
  WL.Event.subscribe("auth.login", onLogin); 
  WL.Event.subscribe("auth.sessionChange", onSessionChange); 
  var session = WL.getSession(); 
  if (session) {   // session is null , why?
      log("You are already signed in!"); 
  } else {  
      WL.login({ scope: "wl.signin" }); 
  } 
  function onLogin() { 
      var session = WL.getSession(); 
      if (session) { 
          log("You are signed in!"); 
      } 
  } 
  function onSessionChange() { 
      var session = WL.getSession();
      if (session) { 
          log("Your session has changed.");
      } 
  } 
  function log(message) { 
      var child = document.createTextNode(message); 
      var parent = document.body; parent.appendChild(child); 
      parent.appendChild(document.createElement("br"));
  }

var REDIRECT_URL=http://localhost:8080/skydrive/callback.jsp 为什么不能写http://localhost:8080/skydrive/callback.jsp呢

那我该写什么呢？

var REDIRECT_URL = http://localhost:8080/skydrive/callback.jsp why not write http://localhost:8080/skydrive/callback.jsp

I write it?