Unnamed

<menu id="myMenu" label="My Menu">
    <menupopup id="x_place" type="places" onpopupshowing="places()" />
  </menu>

in script:
function places(){
var view = document.getElementById("x_place");
view.place="place:folder=146";
view.init(null);
view.appendController(PlacesController);
}