
    474 A.2d 639
    Commonwealth v. Alston, Appellant.
    Petition for Allowance of Appeal Denied July 31, 1984.
    Submitted November 28, 1983.
    Douglas M. Johnson, Public Defender, for appellant; Ronald T. Williamson, Assistant District Attorney, for Commonwealth, appellee.
    Before WICKERSHAM, MONTEMURO and MONTGOMERY, JJ.
   The judgment of sentence is hereby affirmed.  