function open_comm(x, fen) 
{ 
  remote = window.open(x, fen,"toolbar=no,location=no,status=no,menubar=1,scrollbars=yes,resizable=yes,height=400,width=650,top=70,left=100,copyhistory=no");
  if ( remote != null ) {
    if ( remote.opener == null ) {
      remote.opener = self;
    }
   }
}

function open_com1(x, fen) 
{ 
  remote = window.open(x, fen,"toolbar=no,location=no,status=no,menubar=1,scrollbars=yes,resizable=yes,height=400,width=650,top=70,left=100,copyhistory=no");
  if ( remote != null ) {
    if ( remote.opener == null ) {
      remote.opener = self;
    }
   }
}