Reusable loader

Does anyone have a loading solution that allows for loading swf’s, jpegs and is fully customizable?
My duct tape solution had been to have loaders in every swf that i was planning to load in- but this feels silly.
I’ve tried a couple of components from the adobe exchange but they lacked a bit of elegance.
Whether it’s a class or example file- I just want to be able to smoothly load content into the parent- where the loader also resides.
Any help would be GREATLY appreciated.