Post multiple Line in One shot

Dear Sir,

I have created multiple Lines thru code & now I want to Post the same in a Single Shot thru code itself.
How to Do it ?

Code given below for your review.

IF RecordAVR.FINDSET THEN
  REPEAT
    GenJnlLine2.INIT
    ....
    ....
    ....
  UNTIL RecordVAR.NEXT =0;

CODEUNIT.RUN(CODEUNIT::"Gen. Jnl.-Post Line", GenJnlLine2);  //GenJnlLine2 has multiple Lines

The above code posts only the First Line. What is the issue in the above code.
Kindly reply.

Regards,
navuser1