     if @state.isShowingBook
       teacherContent = <TeacherContentToggle isShowing={@state.isShowingTeacherContent}
         onChange={@setTeacherContent} />
-
     <BS.Nav navbar right>
       <BS.NavItem>
         {teacherContent}

      </BS.NavItem>
      <BS.DropdownButton title="Available Books" className="dropdown-toggle">
        {for book in EcosystemsStore.allBooks()
          <li key={book.id}><BookLink book={book} /></li>}
      </BS.DropdownButton>
    </BS.Nav>


  propTypes:
    bookId: React.PropTypes.string.isRequired
    section: React.PropTypes.string
    ecosystemId: React.PropTypes.string.isRequired

  getInitialState: ->
    isShowingTeacherContent: true, isShowingBook: false
