content: 
  
  
  function init()
    m.category_list=m.top.findNode("category_list")
  	m.category_list.setFocus(true)
  	m.top.observeField("visible", "onVisibleChange")
  end function
  
  ' set proper focus to rowList in case if return from Details Screen
  sub onVisibleChange()
    if m.top.visible = true then
      m.category_list.setFocus(true)
    end if
  end sub
  