Openfire and strophe.js: not allowed by Access-Control-Allow-Origin

Question

Im trying to create a webchat using Jabber. I have installed Openfire and i can login to the admin panel at :9090 so the server is running.

Now when using strophe.js basic example, coming with strophe.js i get this error:

5XMLHttpRequest cannot load http://jabber.xxx.dk:7070/http-bind/. Origin http://jabber.xxx.dk is not allowed by Access-Control-Allow-Origin.

How can i allow the domain?