Component Hierarchy canvas.treehier.setAttribute('visible', false); canvas.related.setAttribute('visible', true); Form Classes * multistatebutton extends basebutton: it is used in radiobutton and checkbox, but is not subclassed by any of the higher level components. List Classes In addition to radiogroup listed in "Form", there are many kinds of lists (see "Tabs" and "Tabslider"). Each list extends baselist and contains items that extend baselistitem. Tabslider Classes Tabs Classes Tabs automatically creates a tabsbar and tab items. Typically you would use only tabs and tabpane classes. When changing how the components looks and behave, you might use or extend the base classes. Menu Classes Like combobox, menu does not subclass list, but has a floatinglist. Window Classes Scrollbar Classes Tree Classes canvas.treehier.setAttribute('visible', true); canvas.related.setAttribute('visible', false);