The Spry framework uses two types of regions: one is a Spry Region that wraps around data objects such as tables and repeat lists, and the other is a Spry Detail Region that is used in conjunction with a master table object to allow dynamic updating of data on a Dreamweaver page.
All Spry data objects must be enclosed in a Spry Region. (If you try to add a Spry data object before adding a Spry region to a page, Dreamweaver prompts you to add a Spry region.) By default, Spry regions are in HTML <div> containers. You can add them before you add a table, add them automatically when you insert a table or repeat list, or you can wrap them around existing table or repeat list objects.
If you are adding a detail region, typically you add the master table object first and select the Update Detail Regions option. The only value that is different and specific for a detail region is the Type option in the Insert Spry Region dialog box.