C****************************************************************
SUBROUTINE ATTRAD(IERROR)
C
+#define BLANKET_SAVE
#include "hiparnt.inc"
#include "hijdat.inc"
#include "lujets_hijing.inc"
C.....SM IS THE LARGEST MASS-SQUARED....
40 SM=0.
+ JL = 1
DO 30 I=1,N-1
S=2.*(P(I,4)*P(I+1,4)-P(I,1)*P(I+1,1)-P(I,2)*P(I+1,2)
& -P(I,3)*P(I+1,3))+P(I,5)**2+P(I+1,5)**2