Wait for Process / Fix InDesign Threading Problems

wait.js

	var oldPreflight = app.activeDocument.preflightOptions.preflightOff;
	app.activeDocument.preflightOptions.preflightOff = false;
	// wait a maximum of 20 second for the preflight process. Before it runs, all Transactions should be closed.
	app.activeDocument.activeProcess.waitForProcess(20);
	app.activeDocument.preflightOptions.preflightOff = oldPreflight ;