error en script

[andeta]

Buenas,

alguien sabe por que en la línea 19 me da error? $pages.each (idx)->


saludos, y gracias!


El codigo es el siguiente:

bookClass = '.book'
pagesClass = '.pages'
pageClass = '.page'
pagesResponsiveClass = '.pages-responsive'
$pagesResponsive = $(pagesResponsiveClass)
$book = $(bookClass)
$pageContainer = $book.find(pagesClass)
$pages = $book.find(pageClass)
$prev = $('.prev')
$next = $('.next')
flipping = false
mouseX = 0
slideposition = 0
slidestart = false

currentPage = 0

$pagesLength = $pages.length
$pages.each (idx)->
if idx % 2 is 0
$(this).css('z-index', "#{$pagesLength - idx}")

$pageContainer.on 'click', pageClass, ->
$el = $(this)
if ($el.index() + 1) % 2 is 1
nextPage()
else
prevPage()

$pages.eq(currentPage).addClass('page--is-hoverable')

slidePage = (page=1)->
containerWidth = $pagesResponsive.width()
position = page * containerWidth
$pagesResponsive.animate({scrollLeft: position})


nextPage = (duration=500)->
return false if flipping
$pages.css 'transition-duration', "#{duration}ms"
# if not last page
if currentPage < $pagesLength - 1
$currentPage = $pages.eq(currentPage)
$currentPage.addClass('page--flipped')
$pages.eq(currentPage + 1).addClass('page--flipped')
$currentPage.removeClass('page--is-hoverable')
if currentPage isnt 0
$pages.eq(currentPage - 1).removeClass('page--is-hoverable')
flipping = true
slidePage(currentPage+2)
setTimeout ->
flipping = false
$pages.eq(currentPage + 1).addClass('page--is-hoverable')
$pages.eq(currentPage + 2).addClass('page--is-hoverable')
currentPage += 2
$pages.css 'transition-duration', "#{duration*1.2}ms"
, duration


prevPage = (duration=500)->
return false if flipping
$pages.css 'transition-duration', "#{duration}ms"
# if not first page
if currentPage > 0
$currentPage = $pages.eq(currentPage - 1)
$currentPage.removeClass('page--flipped')
$pages.eq(currentPage - 2).removeClass('page--flipped')
$pages.eq(currentPage).removeClass('page--is-hoverable')
$currentPage.removeClass('page--is-hoverable')
flipping = true
slidePage(currentPage-2)
setTimeout ->
flipping = false
$pages.eq(currentPage - 2).addClass('page--is-hoverable')
if currentPage > 2
$pages.eq(currentPage - 3).addClass('page--is-hoverable')
currentPage -= 2
$pages.css 'transition-duration', "duration*1.2ms"
, duration

seekPage = (page,duration=200) ->
if page != currentPage then slidePage(page)
if page % 2 isnt 0 then page++
if Math.abs(currentPage - page) < 3 then duration *= 2.5
if currentPage > page
prevPage(duration)
setTimeout ->
seekPage(page,duration)
, duration
else if currentPage < page
nextPage(duration)
setTimeout ->
seekPage(page,duration)
, duration
else
clearInterval(seekPage)


$('.pager').on 'click', 'a', (ev)->
ev.preventDefault()
$el = $(this)
page = $el.data('page')
seekPage page


$prev.on 'click', -> prevPage(500)
$next.on 'click', -> nextPage(500)

$pagesResponsive.on 'mouseup touchend', (ev)->
currentPosition = $pagesResponsive.scrollLeft()
containerWidth = $pagesResponsive.width()
page = Math.round(currentPosition / containerWidth) * containerWidth
$pagesResponsive.animate({scrollLeft: page})
slidestart = false

$pagesResponsive.on 'touchstart', ->
console.log 'touchstart'

$pagesResponsive.on 'touchmove', ->
console.log 'touchmove'

$pagesResponsive.on 'scroll', (ev)->
ev.preventDefault()

$pagesResponsive.on 'mousedown touchstart', (ev)->
ev.preventDefault()
slideposition = $(this).scrollLeft()
touch = ev.originalEvent.touches?[0];
if touch?
mouseX = touch.pageX
else
mouseX = ev.pageX
slidestart = true

$pagesResponsive.on 'mousemove touchmove', (ev)->
if slidestart
ev.preventDefault()
touch = ev.originalEvent.touches?[0];
if touch?
offsetX = touch.pageX - mouseX
else
offsetX = ev.pageX - mouseX

$(this).scrollLeft(slideposition - offsetX)