<!-- This isn't a good idea; we should be using "ID" instead of "NMTOKEN" -->
<!-- However, "NMTOKEN" is strictest definition that is both compatible with existing -->
<!-- usage ([0-9]+) and with the "ID" type. -->
<!-- This isn't a good idea; we should be using "ID" instead of "NMTOKEN" -->
<!-- However, "NMTOKEN" is strictest definition that is both compatible with existing -->
<!-- usage ([0-9]+) and with the "ID" type. -->