Tabstrip initail selected index

[Marcin]

Hello I have an issue with intial sected index of tab strip

I tried:

$("#mobilePeriodChooser").kendoMobileTabStrip({

            selectedIndex: 2

        });

but this causing some duplications and still first is active.

I also tried:

$("#mobilePeriodChooser").data("kendoMobileTabStrip").selectedIndex = 2

But this one is showing error becuase data("kendoMobileTabStrip") is undefined.

So how to setup it ?