[Zope] Ordered Folders

The day has come, and I am beginning to code in Zope. The first thing I need to create is a ZClass, inheriting from Folder, where the order of the objects it contains is persistent, and can be changed by the users. That is, I want the user to be able to move the fifth object to be third in the list. User interface issues aside, any ideas on how to implement this? -- Itamar - itamars@ibm.net ---------------------------o----------------------------------------------o Perl/Gimp Greeting Cards | Trust? Ha! The US dollar is backed by ICBMs! | http://www.sealingwax.com | --Anonymous Coward, Slashdot |