### Variable Elements

- <setvar> tag - There are no visual rendering implications with this tag.

Attribute | Value | Description | Comments
--- | --- | --- | ---
name | cdata | REQUIRED. Sets the name of the variable. | SUPPORTED.
value | cdata | REQUIRED. Sets the value of the variable. | SUPPORTED.

- <timer> tag - The timer tag sets a timer that starts counting. This tag must be used with <onevent type=”ontimer”> to be useful.

Attribute | Value | Description | Comments
--- | --- | --- | ---
value | cdata | REQUIRED. Sets the default value of the variable defined in the name attribute. | SUPPORTED.
name | nmtoken | Names the variable that is set with the value of the timer. | SUPPORTED.