MMExecute always returns a string. if you want to manipulate the objects call functions in a jsfl file (i presume u r floking around with a windowSWF), u can call a jsfl like this
ActionScript Code:
return MMExecute("fl.runScript(fl.configURI+\"WindowSWF/"+ filename + "\", \""+scriptName+"\");");
any arguments will be passed as parameters delimated by commas after the scriptname tag.
also:
in the jsfl function you can ofcourse go like this
Code:
var arr = fl.getDocumentDOM().library.items;
//where arr is an array then