     sections = _.map(chapter.children, @renderSectionBars)
     chapterPercent = @_percent(chapter.current_level, 1)
     colorClass = @colorizeBar(chapterPercent)
-    
+
     <BS.Col xl={3}>
       <div id="toggle-#{i}" className="chapter-panel">
         <div className='view-toggle' onClick={@onToggle.bind(@, i)}>

          <span className='chapter-number'>{chapter.chapter_section[0]}</span>
          <div className='chapter-title' title={chapter.title}>{chapter.title}</div>
        <Router.Link
        to='viewTask'
        params={linkParams}
        className='btn btn-default progress-bar-button'>
          <BS.ProgressBar className={colorClass} now={chapterPercent} />

        <span className='section-title' title={section.title}>{section.title}</span>
      </div>
      <Router.Link
      to='viewPractice'
      params={linkParams}
      className='btn btn-default progress-bar-button'>
        <BS.ProgressBar className={colorClass} now={sectionPercent} />
