app/assets/javascripts/backbone/helpers/audio.js.coffee
class Kandan.Helpers.Audio
@audioHolder: ->
$('.audio_channels')[0]
@audioChannels: ->
$('audio')
@createAudioChannel: (id) ->
channel = $("<audio class='audio_#{id}'></audio>")
channel.appendTo(@audioHolder())
@destroyAudioChannel: (id) ->
channel = $(".audio_#{id}")
channel.remove()
@audioChannel: (id) ->
$(".audio_#{id}")[0]
@currentAudioChannel: ->
@audioChannel(Kandan.Helpers.Channels.getActiveChannelId())