app/assets/javascripts/config/countdown.coffee
$(document).on 'ready page:load', ->
updateCountdown()
setInterval((-> updateCountdown()), 1000)
updateCountdown = ->
dateNow = moment()
dateWedding = moment.tz('2015-05-30 15:00:00', 'Europe/Warsaw')
duration = moment.duration(dateNow.diff(dateWedding))
years = Math.floor(duration.asYears())
duration = duration.add(-years, 'years')
months = Math.floor(duration.asMonths())
duration = duration.add(-months, 'months')
days = Math.floor(duration.asDays())
duration = duration.add(-days, 'days')
hours = Math.floor(duration.asHours())
duration = duration.add(-hours, 'hours')
minutes = Math.floor(duration.asMinutes())
duration = duration.add(-minutes, 'minutes')
seconds = Math.floor(duration.asSeconds())
element = $('.countdown')
element.find('.years .value').text(asTime(years))
element.find('.months .value').text(asTime(months))
element.find('.days .value').text(asTime(days))
element.find('.hours .value').text(asTime(hours))
element.find('.minutes .value').text(asTime(minutes))
element.find('.seconds .value').text(asTime(seconds))
asTime = (value) ->
return "00" if value <= 0
value = Math.round(value).toString()
if value.length > 1 then value else "0#{value}"