random coffeescript tests

random.coffee

  visibleY = (el) ->
    `var el`
    rect = el.getBoundingClientRect()
    top = rect.top
    height = rect.height
    el = el.parentNode
    loop
      rect = el.getBoundingClientRect()
      if top <= rect.bottom == false
        return false
      # Check if the element is out of view due to a container scrolling
      if top + height <= rect.top
        return false
      el = el.parentNode
      unless el != document.body
        break
    # Check its within the document viewport
    top <= document.documentElement.clientHeight

  attachEvent = (element, event, callbackFunction) ->
    if element.addEventListener
      element.addEventListener event, callbackFunction, false
    else if element.attachEvent
      element.attachEvent 'on' + event, callbackFunction
    return

  validatebrief= ->
    console.log "validating"
    if $('#brief_logistic_attributes_quantity1').val() == ""
      $('#brief_logistic_attributes_quantity1_validation').show()
    else
      $('#brief_logistic_attributes_quantity1_validation').hide()

  update = ->
    validatebrief()
    # console.log visibleY(document.getElementById('btn_submit_brief'))
    return