I am trying to run a script that prompts the user for a desired directory and file name for export. Ideally, this script would be run from the *File -> Export* menu and pop up a file browser window similar to how the included export scripts function.

The only way I've found to call Blender's file browser is via a file path property for a UI panel (i.e. http://blender.stackexchange.com/questions/2382/how-to-add-a-select-path-input-in-a-ui-addon-script). Is what I'm trying for possible?