--- /dev/null
+ SUBROUTINE DPMJET_OPENINP()
+*
+*----------------------------------------------------------------------*
+* Opens a file with a given unit number
+*
+*
+* IOUNIT: Input unit to be assiged to the file
+* FILNAM: Name of the file
+*
+*----------------------------------------------------------------------*
+*
+ IMPLICIT NONE
+ OPEN (10, FILE="dpmjet.inp", STATUS="OLD")
+ OPEN (23, FILE="dpmjet.dat", STATUS="OLD")
+ RETURN
+ END