[Name] id [Required] false [Attribute Constraints] Must not occur with the 'idlocation' attribute. [Default Value] none [Valid Values] Any valid token [Description] A string literal to be used as the identifier for this instance of . See 3.14 IDs for details. [Type] 
ID
U R I
v a l u e e x p r e s s i o n
V a l u e e x p r e s s i o n
I D
L o c a t i o n e x p r e s s i o n
L i s t o f l o c a t i o n e x p r e s s i o n s
b o o l e a n