What is the best way to access custom FS object methods from Actionscript

[RJS]

I have a FFishScript custom object like this

In FFishScript:
function customObject () {
this.property = 123;
this.getProperty = function() {return(this.property)}
}

In FFishScript:
var myObject = new customObject();
trace (myObject.getProperty()); // Returns 123

In AS:
(I've tried -)
import SWFKit.*
var g = new Global();
trace (g.myObject.getProperty()); // undefined

Question. How best to synchronously access methods like this from Actionscript?

Thanks.

[SWFKit]

Any global method in ffish script can be called with the external interface in as. So you need to first write a method in ffish script to return the custom object, and then call the method in as:

var customobj = ExternalInterface.call("createCustomObject", params);

where "createCustomObject" is a global method in ffish script.