Counttask (string)

   Synopsis:
      Counts the number of currently-running tasks matching the specified string
      
   Notes:
      'string' can be a task's label (e.g. "status" or "stat"), its formal name
         (e.g. "status_task") or the unique name of a particular task in the
         current tasklist (e.g. "status_task_17").
      Returns 0 if no matching tasks are found. 
      See also the Findtask$ () function.
