The plugin attribute specifies which eye tracker plugin to load.
| Name | Type | Description | 
|---|---|---|
| eyetracker | string | The name of the eye tracker plugin to use, either "tobii" or "srresearch". | 
This attribute is mandatory for the eyeTracker element.
The following binds the eytracker element to the Tobii plugin for use with a Tobii eye tracker:
<eyeTracker>
/ plugin = "tobii"
</eyeTracker>The following binds the eytracker element to the SR Research EyeLink plugin for use with an EyeLink eye tracker:
<eyeTracker>
/ plugin = "srresearch"
</eyeTracker>