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smoothScroll = ->
$('a[href*=#]').click ->
anchor = $(this).attr('href').match(/#(.*)/)[1]
target = $('a[name=' + anchor + ']')
ran = false
$('html, body').animate { scrollTop: target.offset().top - 60 }, 400, ->
unless ran
offset = this.scrollTop
location.hash = anchor
this.scrollTop = offset
ran = true
false
highlightNav = ->
anchors = $('h2 a[name]')
anchor_links = $('ul a')
positions = anchors.map (i, item) ->
$(item).offset().top
anchors = $.makeArray(anchors).reverse()
anchor_links = $.makeArray(anchor_links).reverse()
positions = $.makeArray(positions).reverse()
scrollHappened = ->
anchor_index = null
scroll_y = this.scrollY
$.each positions, (i, item) ->
if scroll_y >= item - 70
anchor_index = i
return false
if anchor_index?
$(anchor_links).removeClass 'selected'
$(anchor_links[anchor_index]).addClass 'selected'
if scroll_y < positions[positions.length - 1] - 70
$(anchor_links).removeClass 'selected'
$(window).scroll scrollHappened
scrollHappened()
$ ->
smoothScroll()
highlightNav()
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