[Cookie] returns the value for a named cookie. Accepts one required parameter, the name of the cookie whose value should be returned.

Note: A cookie's value cannot be retrieved in the same format file in which it is set.

Cookies are sent to the Web server by the visitor's Web browser. The availability of cookies is determined by the visitor's Web browser preferences and the parameters which are specified when a cookie is set.

It is not usually possible to retrieve a cookie that was set on another Web server.