check for segmented control class instead of selectedTag method, because the latter is always defined
check for segmented control class instead of selectedTag method, because the latter is always defined

git-svn-id: 765db44a9620ed55f4f8addfd3c14fe8cd57f6bb@7299 0fceea05-a30d-0410-8a8b-80ef821fb0a1

nanoant/Skim,nanoant/Skim,nanoant/Skim,nanoant/Skim,nanoant/Skim