TabBar and Views

I have a TabBar with 5 different views for each TabBar item. All these 5 views have long content wrapped in a ScrollView.

So let's say I chose my 2nd TabBar item and scroll on this view.

Then I move away to another view and when I hit the 2nd TabBar item again, I want this view scrolled to the top and not at the position I left on the first visualization. How can I do that?

Thx

TabBar and Views
 
 
Q