Crystal Reports Array

Message

   Hi I have a formula which creates an array to store time elements for 52 weeks i.e. the array has 52 elements ,

Is it possible to achieve a running total for the first element in an array and place it in the group footer.

My array is as follows below.

Global NumberVar Array WeeklyHrs;   // This is in the report details 
redim WeeklyHrs[Len({CT_EVENT.weeks})];
NumberVar i;
for i := 1 to Len({CT_EVENT.weeks}) do
(
    if Mid({CT_EVENT.weeks},i,1) = "y" then   
    WeeklyHrs  := tonumber(DateDiff ("n", {CT_EVENT.start_time}, {CT_EVENT.end_time}))/60
    else WeeklyHrs  := 0;
);
Sum (WeeklyHrs)

What I want to do is a running total of all the first elements in the array to see if in week 1 the hrs are over 25.

Many thanks  