Runtime sharing of items in parent folder

how could i do that?
i have this structure:

  • main.swf
  • data/file_1.swf
  • data/file_2.swf

and i will like to import font from main.swf to file_1.swf & file_2.swf.
when i use “main.swf” for URL in main.fla Flash doesnt load that font…
i just cant find what’s the problem…