mini js cookie interface

cookies.js

var Cookies = function() {
  return {
    set: function (name, value, days) {
      if (days) {
    	var date = new Date();
    	date.setTime(date.getTime() + (days*24*60*60*1000));
    	var expires = "; expires=" + date.toGMTString();
      } else var expires = "";
      document.cookie = name + "=" + value + expires + "; path=/";
    },
    get: function (name) {
      var nameEq = name + "=", 
          ca = document.cookie.split(';');
      for(var i = 0; i < ca.length; i++) {
        var c = ca[i];
    	while (c.charAt(0)==' ') c = c.substring(1, c.length);
    	if (c.indexOf(nameEq) == 0) return c.substring(nameEq.length, c.length);
      }
      return null;
    },
    delete: function (name) {
      this.set(name,"",-1);
    }
  };
}();