Random image loading from txt file

Hi all - need your help; am having major brain burp…

I want to have a background image that randomly loads from a list of *.jpg files in a txt file. The txt file is to be edited by user (to add a new image) without accessing the code contained in the .fla, and the txt file gives the location of the images.

It is possible I know - but my old head isn’t working. :h:

I need this for a charity that I do free work for; any pointers would be a huge help.

(Have searched forums, BTW, but nothing exactly matches - honest :beam: )

Thx all.