hide latest user block if doesn't exist

public/templates/footer.tpl

@@ -24,7 +24,11 @@
 		});
 		socket.emit('user.latest', {});
 		socket.on('user.latest', function(data) {
+			if (data.username == '') {
+				latest_user.innerHTML = '';
+			} else {
 				latest_user.innerHTML = "The most recent user to register is <b>" + data.username + "</b>.";
+			}
 		});
 		socket.emit('api:user.active.get');
 		socket.on('api:user.active.get', function(data) {