As you have shown in an example table you want to compare month year i.e. Nov 2015. I will recommend to extract this using MonthName function on date field(same as one you have used to extract Month and Year fields).
Once you have that you can write store you current month in a variable in script:
vCurrentMonth = MonthName(Today(1)); //which will give you Dec 2015 on todays date
Once you have this variable in place you can use it in expressions