Nested Sets DB Tree is a class that can be used to
manipulate nested sets of database table records
that form an hierarchical tree. It provides the
means to initialize the record tree, insert record
nodes in specific tree positions, retrieve node
and parent records, change the position of nodes,
and delete record nodes. It uses ANSI SQL
statements and the ADODB library to make it work
with many database types. Transactions are
supported through the ADODB class. The library
supports the gettext multilanguage interface.
