function Get_directories_via_Inputbox() {
	
	BrainVoyagerQX.TimeOutMessageBox("With this function you can select as many directories as you like.\nPlease first select a main directory...", 4);
	var maindirname = FileDialog.getExistingDirectory();
	var maindir = new Dir(maindirname);
	var subdirnames = maindir.entryList("*", maindir.Dirs);	
	var subdirarray = new Array();
	
	var selectedsubdir = "";
	BrainVoyagerQX.ShowLogTab();
	BrainVoyagerQX.PrintToLog("\nStart selecting directories...");
	while (selectedsubdir != "undefined") {		
		selectedsubdir = Input.getItem("Please select a subdirectory", subdirnames);
		if (selectedsubdir != "undefined") BrainVoyagerQX.PrintToLog("Selected directory: " + selectedsubdir);	
		subdirarray.unshift(maindir.path + "/" + selectedsubdir); // add the whole pathname to the subdirectory
	}
	BrainVoyagerQX.PrintToLog("Finished.");
	return subdirarray; // returns the array to another function that invokes this function Get_directories_via_Inputbox()
}

function Get_directories_via_dialog() {
	
	BrainVoyagerQX.TimeOutMessageBox("With this function you can select as many directories as you like.\nPlease first select a main directory...", 4);
	var maindirname = FileDialog.getExistingDirectory();
	var maindir = new Dir(maindirname);
	var subdirnames = maindir.entryList("*", maindir.Dirs);
	var subdirarray = new Array();
	
	BrainVoyagerQX.TimeOutMessageBox("Please now select subdirectories. To stop, press 'cancel'.", 4); // show timoutmessagebox for 4 seconds
	var dialog = new Dialog;
	var subdirbox = new ComboBox;
	subdirbox.label = "Please select a directory:\nTo stop, press 'cancel'.";
	subdirbox.itemList = subdirnames;
	dialog.add(subdirbox);
	
	BrainVoyagerQX.ShowLogTab();
	var selectedsubdir;
	BrainVoyagerQX.PrintToLog("\nStart selecting directories...");
	while (dialog.exec()) {				
		selectedsubdir = subdirbox.currentItem;		
		BrainVoyagerQX.PrintToLog("Selected subdirectory: " + selectedsubdir);
		subdirarray.unshift(maindir.path + "/" + selectedsubdir); // add the whole pathname to the subdirectory
	}
	BrainVoyagerQX.PrintToLog("Finished.");
	return subdirarray; // returns the array to another function that invokes this function Get_directories()
}

// Uncomment the function below to use the returned value from the Get_directories() function. 
/*
function Use_function_get_directories() {
	
	var subdirlist = Get_directories();
	var counter;
	BrainVoyagerQX.ShowLogTab();
	BrainVoyagerQX.PrintToLog("Returned subdirectory names from Get_directories(): ");
	for (counter = 0; counter < subdirlist.length; counter++) {
		BrainVoyagerQX.PrintToLog("Subdirectory " + (counter+1).toString() + ": " + subdirlist[counter]);
	}	
}
*/