How to suspend the script be executed before Alert.show() completed?

how to suspend the script be executed before Alert.show()
completed?
In a window, when users want query and display new data, they
should be asked whether to save the old data. The
queryAndDispleyNewData script should not be executed untile the old
data is saved or be gived up.
queryNewData(){
if (Alert.show(askSaveOrNot)==YES) doSave();
queryAndDisplyNewDate_Script;
however, the face if the queryAndDisplyNewDate_Script is
always executed before doSave(). how could I do?
Any suggestion will be appreciated.

You cannot suspend the script. Flex/ActionScript is
event-driven. When you post a dialog box - modal or not - you
assign event listeners to it. It is in the event listeners that you
do whatever it is the dialog is asking - saving data back to the
server, for example.
Requesting and posting data to the server is event-driven
too. If you request data from the server you must process it in an
event handler (which includes data binding).
If you are going to develop Flex applications you will need
to understand event-driven programming.

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