lire/écrire/delete et manger des cookies

cookie.js

var cookie = (function(root){
  var cookie = {}
    , doc = root.document
    , _cookie = "cookie"
    , _exp = "; expires="
  
  cookie.get = get
  // @name
  // @var
  // @var
  function get(a,b,c){b=doc[_cookie].match("(?:;|^)\\s*"+a+"\\s*=\\s*([^;]+)\\s*(?:;|$)");return b&&b[1]}
  
  // @name
  // @value
  // @expiration date
  cookie.set = set
  function set(a,b,c){b=doc[_cookie]=a+"="+b+(c?_exp+new Date(c).toGMTString():"")}
 
  // @name
  cookie.remove = remove
  function remove(a){b=doc[_cookie]=a+"="+_exp+new Date().toGMTString()}
  
  return cookie
})(this)