ActionScript 2.0 :: Create An Advert Box That Loads Different Files From Urls?

im trying to create an advert box that loads different files from urls contained in an external xml src. The code for the XML loading works well, but the rest of the code does not seem to work.

what im trying to archieve is:

1. get the list of urls from the XML file

2. trigger the loading of these files as soon as the xml file is loaded

3. loop among these files (5 in total), in a given period of time,

4. Each time they are loaded ,the loading bar should show the progress

here is my code

Code:
_root.start_load_advert = function() {
load_advert_int = setInterval(load_advert, 10000);
};

[Code].....