  This paper has been removed by arXiv administrators because it plagiarizes
gr-qc/0303009, hep-th/0405047, gr-qc/0602107, hep-th/0311050, gr-qc/0412120,
gr-qc/0508005, and others.
  This paper has excessive overlap with the following papers also written by
the authors or their collaborators: gr-qc/0607119, gr-qc/0607115,
gr-qc/0606080, gr-qc/0607110, gr-qc/0607102, gr-qc/0510123, gr-qc/0607126,
gr-qc/0602012, and others.
