[Zope] Reading cookie strings in Zope

Can anybody show me where there is some good example code of how to read from multiple keys in a cookie (using Zope)? I can get saving of multiple keys to work in Zope, but I don't know how to read and process the multiple saved items in a cookie (to update the users preferences for the layout of a dhtml page) regards, Mark Spencer, Blazer Technologies P/L. email: markwspencer@bigpond.com