Indesign Scripting: How can I move a placed item using Javascript?

Hey all,

I have been trying to write a script that places a slug object from an indesign library on to a document and then moves it to my slug area. It all seems to work except the move command. I think the problem is that I haven't selected my placed asset correctly.

Please help!

This is what I have so far:

//Create new document

var doc = app.documents.add();

// Get page size values

var w = doc.documentPreferences.pageWidth;

var h = doc.documentPreferences.pageHeight;

//Create layer called SLUG

var slugLayer = doc.layers.add({name:"SLUG"});

//Set document slug area size

doc.documentPreferences.documentSlugUniformSize = false;

doc.documentPreferences.slugBottomOffset = "20 mm";

//Open InDesign library file that contains the slug file

var slugLibrary = app.open(File("/Users/Shared/Slug.indl"));

//Place slug script to go here

var myPlacedAsset = slugLibrary.assets.item("Slug");

var mySlug = myPlacedAsset.placeAsset(doc);

//Close the slug library

slugLibrary.close();

// Move slug object to slug area

mySlug.move([0,0]);

//Lock SLUG layer

slugLayer.locked = true;