[xml] Loading World Data into Flash

I want to know is there is a way to display a loading animation until an XML object has loaded from an external .xml file.
I’m using xml to store the layout of a tile based world and as the world gets bigger I need a way to show the user something is happening whilst it loads.
I’m looking for a kind of XML preloader bar type thing!

could ya time it for a certain length using the bandwith load thing that tells ya how long it will take to load have the person choosera bandwith and have the preloader run for that amout of time while the site loads under neath it then use remove mc to get rid of it and they could now look at their webpage?