使用JavaScript中的“Out”参数

I am working with an ActiveX control in Internet Explorer 8 that is to display a save file dialog which let's the user choose a file name and file type (jpg, gif, etc). These values get passed to code and then are used in a different method to save the file. Unfortunately the method that invokes the dialog has no return value, and the file name and file type are passed in as I am working with an ActiveX control in Interne