This tag allows you to arrange the items in a ComboBox control (defined by
the SELECT tag). Each group will start with a
non-selectable header label with the items listed underneath. The items
are defined using the OPTION tag.
Attributes
LABEL
Specifies the name of the group that will appear in the ComboBox.
Related Tags
This tag is used within the SELECT tag. OPTION
tags are used within this tag to define the list items.