mac osx compat

Hi guys,

so I'm tweaking around with this leech program in the .js file.  I'm 
trying to get wget from fink to be used.  It's installed in /sw/bin/wget
but might be called MyDisk:sw:bin:wget.

I used the jslib instead, and converted some of the file access routines 
to use FileUtils.

I have a snip like:

fu = new FileUtils();
fu.spawn ("MyDisk:sw:bin:wget", "arg1 arg2 arg3");

fu.exists (...); works just fine, it returns true.  fu.size(...) works 
as well too.  But fu.spawn doesn't, which makes me wonder, can you 
actually run command line stuff from mozilla in osx?

Jeff