Flex and AIR: Open and Close Window Without Re-creating

I would like to open and close a window in Flex(AIR). I would really like to do something like:

var myWindow:Window = new Window();
myWindow.open(true); // open after creating(this works)

myWindow.close(); // now hide the window

myWindow.open(true);// reappear(this doesn't work after a close)

I'm probably missing something simple, perhaps close() is not what should be used.

The main thi开发者_如何学Gong is I want to create a window once, and then show and hide it as necessary.

EDIT: removed unnecessary vars

May be it's a copy paste error, but var is required only in the first line. Instead of closing the window, set its visible property to false to hide it.

//to hide the window
myWindow.visible = false;

//to show it again
myWindow.visible = true;

Why var at the beginning of every line?

try

myWindow.close(); 
myWindow.activate();
myWindow.open();

or

myWindow.close(); 
myWindow = new Window();
myWindow.open();