getcookie

Displays the value of the cookie named "member" that the remote browser has remembered. If no cookie of that name exists, then nothing (a blank value) is returned.
[getcookie name=cookieName]

It is important to understand that when you set a cookie on a page, it is NOT available via [getcookie] further down in the same page. Only when the user accesses the NEXT page does the cookie become available. For this reason, [redirect [thisurl]] is often used immediately after setting a cookie to make it available.