... rich-client interfaces communicate with the user in much more flexible ways. In particular, in a rich-client interface, a part of the userinterface can be updated without updating everything. In a ... copy of the current node in the input XML file, including child nodes.As mentioned in the comments to listing 13.9, escaping variables from PHP maybe necessary mainly to avoid XML syntax ... outline is in aNavigator window. If I change, add, or delete a heading in the document, the headingchanges in the Navigator too.Table 15.3 The variations on the term commandTerm MeaningCommand...