Delete a batch of records from a table
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 Syntax

        H_BatchDelete( aTables , aConditions , lCheck )

 Arguments:

      aTables     - Array of tables and indexes
      aConditions - Array of conditions
      lCheck      - If .T., check if users are logged on

 Returns:

      NIL

 Description:

      Structure of aTables is { Element 1 , Element 2 , ... }
      where each element is { Table name , Index 1 , Index 2 , ... }
      Each table and index should be identified from the directory cDefault

      Structure of aConditions is { Element 1 , Element 2 , ... }
      where each element is { Condition 1 , Condition 2 , ... }
      If any condition evaluates to .T. for a given record,
      the record is deleted

      Warning - Closes all tables on exit

 Examples:



 Header File: H_LIB52.CH

 Source: BATCHDEL.PRG

 Author:  Martin Colloby