script as an XML Event handler

Hi,

It seems that the script element is not specified as an XML Event
handler and what the behavior should be. Is this intentionally and if so
what would the example from the XML Event specification mean in XHTML
2.0?

Example from XML Events (2.3.1 ex. 1):
<script type="application/x-javascript"
        ev:event="submit" ev:observer="form1">
   return docheck(event);
</script>

Best regards,
David