Help with javascript rounding (2nd attempt)

Hi,

I have already tried to get an answer in this thread last month: Help with javascript rounding

I was asked to send the form and was supposed to get the form back with the javascript corrected.. but never got any reply (if someone else would like to take a look at my form I would really appreciate it).

In any case, here is the problem:

I have to add 3 Fields to get a TOTAL.

SUBTOTAL + TAX1 + TAX2 = TOTAL

So here is a real example :

99,50 + 4,975 + 9.925125 = 114,400125 $

The problem is that since the format of the Fields is set to "2 decimals", I get the following:

99,50 + 4,98 + 9,93 = 114,40 $

Evidently, the obvious result should be 114,41 $ (and not 114,40$).

So what I need is the correct script that will correctly round TAX1 and TAX2 to 2 decimals, so that the total is 1 cent more...

Any help is welcomed.

Thanks!