%
% determine time difference between file and tree node
%
true !JS.Filed
"Mod" \_
"mod" log)(
any?
{
%
% task tree has modification stamp for comparison
% compare the jsx file date/time with the recorded modification time
%
 ".jsx" *jspmfile stamp
"File" log)(
 "s" Time.Diff
"Diff" log)(
 unwhole
 {
%
% file older than tree mod, tree is used
%
  false !JS.Filed
 }
 {
%
% has been modified, use the externally modified file
%
 } ifelse
} if