idlow function not working with FutureSource

["Lincoln Fiske" <lincolnf@xxxxxxxxxxxxx>]

Below is an intraday low function which works fine with BMI/Signal data.
However, when applied to a friend's FutureSource S&P 5 min bars (today at
least), it scrunches the screen and gives a reading in the data window that
sounds suspiciously like it's reading the initial value of 99999 and not
going beyond that. Does anyone know what I can do to change the function so
that it will work with FS data?

Thanks,
Lincoln

idlow function:

vars:lowtoday(99999);
lowtoday=lowtoday[1];
if date>date[1] then lowtoday=99999;
if low<lowtoday then lowtoday=low;
IDLow=lowtoday;