i found a bit of info about scheduler 
here<http://stackoverflow.com/questions/5131086/using-the-gwt-scheduler>. 
now i got:

"    private boolean tryToContinue() {
        if (ttReady && auReady) {
            continueStart();
            return false;
        } else
            return true;
    }

    public void start() {
        Scheduler.get().scheduleEntry(new RepeatingCommand() {

            @Override
            public boolean execute() {
                return tryToContinue();
            }
        });
"
i used "scheduleEntry" because of Javadoc: "This type of command is 
appropriate for instrumentation or code that needs to know when "something 
happens." "
But i am unsure about my implementation/ my understanding about scheduler - 
is the code above correct?

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