Export bookmarks to text

Hi, Folks!

I am looking for a tool to export pdf bookmarks to text. The AutoBookmark plug-in allows this. But it comes as a whole bunch of functions and is to expensive for me as a student.
The friendly author of the software told me that I can do this in Acrobat Professional by writing a simple Acrobat JavaScript and executing it as a batch command.
But I have no ideas about JavaScript and batch commands.

Would anybody of you kindly help me on this subject with an easy step-by-step instruction?
Because I am preparing exams I don't have a lot of spare time.

Thanks in Advance

Alexander