Help in script logic

Hi Experts,

We are using SAP BPC 7.5 NW Version SP08. We are using a script logic that calculates the opening value of inventory(ASSTCAINVAMO) for each month except the 1st month of financial year for which the value is entered from an input schedule. The opening value of inventory of each subsequent months are calculated when the parameters for production(e.g. OSDA) are entered from a separate input schedule. The following script logic is written for the calculation:

*FOR %TIM_MEM%=%TIME_SET%

*XDIM_MEMBERSET TIME =%TIM_MEM%

*WHEN P_ACCT2

*IS "OSDA",

REC(EXPRESSION=[P_ACCT2].[ASSTCAINVAMO]+[P_ACCT2].[RDPA][P_ACCT2].[EFFA][P_ACCT2].[OSDA]-[P_ACCT2].[CONVAMUR][P_ACCT2].[RDPU][P_ACCT2].[EFFU][P_ACCT2].[OSDU]-([P_ACCT2].[SALQAMBC]+[P_ACCT2].[SALQAMM]),P_ACCT2="ASSTCAINVAMO",TIME=TIME.NEXT)

*ENDWHEN

*COMMIT

*NEXT

The loop works fine, but it seems the list of time values are not coming in proper sequence. For example, the loop is running for 2011.NOV before it iterates for 2011.OCT. So when it iterates for 2011.NOV, it is not getting the opening value for the month and consequently 2011.DEC's opening value is calculated assuming 2011.NOV's opening value to be 0. In the input schedule the months are in proper sequence.

Is there any way out so that the months come in proper sequence in the logic as well?

Thanks in advance for any help.