set and get cookies

cookies.js.coffee

setCookie = (name, value, path, expires, domain, secure) ->
  if typeof expires is "undefined"
    expireDate = new Date()
    expireDate.setTime expireDate.getTime() + (3600000 * 24 * 365)
    expires = expireDate.toGMTString()
  curCookie = name + "=" + escape(value) + (if (expires) then "; expires=" + expires else "") + (if (path) then "; path=" + path else "") + (if (domain) then "; domain=" + domain else "") + (if (secure) then "; secure" else "")
  document.cookie = curCookie

getCookie = (name) ->
  nameEQ = name + "="
  ca = document.cookie.split(";")
  i = 0

  while i < ca.length
    c = ca[i]
    c = c.substring(1, c.length)  while c.charAt(0) is " "
    return c.substring(nameEQ.length, c.length)  if c.indexOf(nameEQ) is 0
    i++
  null