http://strongwaterdesign.com/portfolio/corey-pane/

slide.coffee

# Read more at coffeescript.org 

$ -> # $(function() {...}

  # Note: you had an extra call fo $(document).ready. The call above is actually the same thing.
  $('.wrapper').css 'overflow-x', 'hidden'
  
  $('#slider-name a').click ->
    $('#slider-nav a').removeClass 'selected'
    $(this).addClass 'selected'
    opts =
      duration: 500
      offset:
        top: -30
    
    $('.wrapper').scrollTo $(this).attr('href'), opts
    false
  
  $('.end a').click ->
    $('.wrapper').scrollTo $('.slide li', opts)
    $('.selected').removeClass 'selected'
    $('#slider-nav a:first').addClass 'selected'
    false