Question How can I get value 1 for date-fr and get value 2 for date-to?

[qadvietnam]

I do design report in QAD system by Report Framework QADSE2013SE:

If user function GetFilterValue as:
date-fr = DATE(GetFilterValue("temptable", "gltr_eff_dt", "")).
date-to = DATE(GetFilterValue("temptable", "gltr_eff_dt", "")).
When this date-fr same date-to have value 2013/7/31.

How can I get value 1 for date-fr (2013/7/1) and get value 2 for date-to (2013/7/31)?
Pls help us.

Thanks,
QAD Vietnam