Using a movie to call a function

I have some actionscript that checks for installations of Acrobat Reader I’m using in a Projector project.

This code executes by pushing a button. I want to use a movie (like a preloader) to execute the script.

i.e. when the movie reaches frame 50 execute the fucntion to check for acrobat reader

I have it working fine using a button

test_btn.onRelease = function . . . . .

But I can’t seem to get it to work with a movie.

I need to set up way to check what frames is loaded and if it is all loaded then execute the function.

something like

if (test_mov._currentframes == 50){execute function}

This is probly really simple but I can’t seem to get it working.

Any thoughts??

Andy

P.S. the script is all on frame 1 of main timeline.