function update_user_box() { 
	var user_box = document.getElementById("user"); // add in some XFBML. note that we set useyou=false so it doesn't display "you" 
	user_box.innerHTML = "<span>" + "<fb:profile-pic uid=loggedinuser facebook-logo=true></fb:profile-pic>" + "Welcome, <fb:name uid=loggedinuser useyou=false></fb:name>. You are signed in with your Facebook account." + "</span>"; 
	// because this is XFBML, we need to tell Facebook to re-process the document 
	FB.XFBML.Host.parseDomTree(); 
}