Accessing c4 Variables in Javascript

How do you pass a Captivate 4 variable (User or System) in Javascript when the published .SWF is embedded in another tool like Lectora or Flash?
In Captivate, you can set a value into a Lectora variable (VARmyLectoraVariable.set('myvalue');, but I don't know how to access the Captivate variable.
When run from Captivate, this works:
Captivate.GetVariable('CaptivateVariable');
But when the published .swf from Captivate is inserted into Lectora and run, I get a JavaScript error ('Captivate' is undefined).
How do you reference the Captivate variable in JavaScript when the .swf is not embedded in the Captivate project html file?
Thank you!

http://pipwerks.com/journal/2009/06/07/introducing-the-captivatecontroller/
check this out

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