Random image loader, 5 most rcent images.

Hi all,

Basically I need to set up a swf file that randomly shows 5 images loading from an external folder.

So I'll need an image loader, only thing is the image folder will constantly have new images added to it, so I will need the image loader to only use the 5 most recently created images. so it would have to read when the file images were created etc.
Would anyone know how to do this in Flash?

Thanks in advance,
Fergal.