Set focus on a button in dialog in indesign CS6 javascript

[Yuliascript]

Hi,

How I can set focus on OK button in the dialog in indesign CS6 javascript:

var myDialog = app.dialogs.add({name:"Place PDF file",
canCancel:true});

Thank you.

Yulia

[Loic.Aigon]

Doubt you can do this with Dialog Class. See ScriptUI instead.