User Agent Accessibility Guidelines 1.0  31 July 2001  4.
Glossary  This glossary is normative. Some terms (or parts of
explanations of terms) may not have an impact on conformance.
Note: In this document, glossary terms generally link to the
corresponding entries in this section. These terms are also
highlighted through style sheets and identified as glossary
terms through markup.  a · b · c · d · e · f · g · h · i · j · k
· l · m · n · o · p · q · r · s · t · u · v · w · x · y · z  In
this document, the verb "to activate" means (depending on
context) either:  The effect of activation depends on the type
of enabled element or user interface control. For instance, when
a link is activated, the user agent generally retrieves the
linked Web resource. When a form element is activated, it may
change state (e.g., check boxes) or may take user input (e.g., a
text entry field).  In this document, "to alert" means to make
the user aware of some event, without requiring acknowledgement.
For example, the user agent ma