Wait for activated fonts in open-event

Question

Hi there,
in an open-event of a document I try to wait till the missing fonts are activated (using a font-manager-software).
As a test, I run a loop counting the fonts known by indesign. if the count changes, I do an alert but it does not change after activating fonts in the fontmanager.
If I enable the "alert", it shows me the new number (the round after the alert). So I think that opening the alert gives indeisgn time to check for new fonts.
Is there a way how I can solve this (showing an alert every second is no solution ;-))
Coding on Mac OS X 10.6.8 with CS 6
here is the code:
thank you!
var lastFontCount = app.fonts.length;
while (true)
  $.sleep(1000);
                    app.updateFonts();
                    var currentFontCount = app.fonts.length;
  //alert("currentFontCount: " + currentFontCount);
                    if (currentFontCount != lastFontCount)
    alert("currentFontCount != lastFontCount // " + currentFontCount + " != " + lastFontCount);
    lastFontCount = currentFontCount;

Answer 1

in the FORK step you have an option of mentioning the "necessary steps".
it defines the minimum number of legs of the FORK step that must be completed before proceeding to the next step in the WF.
mention the necessary step as 1 for your case.