When an anchor is activated, by default the browser will
replace the Wt application with the targeted document. This may be
changed to suggest the browser to follow the link in a new window,
using the setTarget() method.
You may specify the anchor's target URL directly, but anchors
can also be pointed to a WResource. This allows you to serve
auxiliary files related to a particular application session, and
perhaps dynamically generate the content. Wt includes WFileResource to stream a file and WMemoryResource to stream a data vector.
WAnchor also plays an important role for navigation
within your application, using Wt's internal paths, since they
provide support for bookmarks, the browser back/forward buttons,
and following links in new windows. For example,
the WMenu widget (used here to
navigate Wt widgets) uses anchors for its items by default.
