content: function init()
     m.buttongrp = m.top.findNode("button_grp")
     m.button1= m.top.FindNode("option_btn1")
     m.button1.textFont.size = "20"
     m.button1.focusedTextFont.size = "20"
     m.top.observeField("visible", "focus")
     m.button1.observeField("buttonSelected", "onButtonSelected")
  end function
  
  function focus()
      if m.top.visible = true then
          m.buttongrp.setFocus(true)
      end if
  end function
  
  Function onButtonSelected()
      sec = createObject("roRegistrySection", "MySection")
      list = sec.GetKeyList()
      for each item in list
          sec.Delete(item)
      end for
  End Function