I would be wary of using XML in cookies. XML is not the most compact way to store data, and if I recall correctly, there IS a space constraint to the length of cookies. There is some standard, but in all reality it is probably browser-dependent.

Technically, I believe you could pass XML as a big long string as a cookie param, but I can think of many better ways of accomplishing the task.

"Falling in love with map, one block at a time." - simeon2000